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- llmeval-env/lib/python3.10/site-packages/sympy/codegen/__pycache__/pyutils.cpython-310.pyc +0 -0
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- llmeval-env/lib/python3.10/site-packages/sympy/printing/jscode.py +339 -0
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- llmeval-env/lib/python3.10/site-packages/sympy/printing/lambdarepr.py +251 -0
- llmeval-env/lib/python3.10/site-packages/sympy/printing/latex.py +0 -0
- llmeval-env/lib/python3.10/site-packages/sympy/printing/llvmjitcode.py +489 -0
- llmeval-env/lib/python3.10/site-packages/sympy/printing/maple.py +311 -0
- llmeval-env/lib/python3.10/site-packages/sympy/printing/mathematica.py +354 -0
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llmeval-env/lib/python3.10/site-packages/sympy/liealgebras/__pycache__/__init__.cpython-310.pyc
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llmeval-env/lib/python3.10/site-packages/sympy/liealgebras/__pycache__/type_a.cpython-310.pyc
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llmeval-env/lib/python3.10/site-packages/sympy/plotting/tests/test_region_and.png
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llmeval-env/lib/python3.10/site-packages/sympy/printing/__init__.py
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1 |
+
"""Printing subsystem"""
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2 |
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from .pretty import pager_print, pretty, pretty_print, pprint, pprint_use_unicode, pprint_try_use_unicode
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from .latex import latex, print_latex, multiline_latex
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from .mathml import mathml, print_mathml
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from .python import python, print_python
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from .pycode import pycode
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from .codeprinter import print_ccode, print_fcode
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from .codeprinter import ccode, fcode, cxxcode # noqa:F811
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from .smtlib import smtlib_code
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from .glsl import glsl_code, print_glsl
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from .rcode import rcode, print_rcode
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from .jscode import jscode, print_jscode
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from .julia import julia_code
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from .mathematica import mathematica_code
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from .octave import octave_code
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from .rust import rust_code
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from .gtk import print_gtk
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from .preview import preview
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from .repr import srepr
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from .tree import print_tree
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from .str import StrPrinter, sstr, sstrrepr
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from .tableform import TableForm
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from .dot import dotprint
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from .maple import maple_code, print_maple_code
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__all__ = [
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50 |
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# sympy.printing.pretty
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51 |
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'pager_print', 'pretty', 'pretty_print', 'pprint', 'pprint_use_unicode',
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'pprint_try_use_unicode',
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53 |
+
|
54 |
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# sympy.printing.latex
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'latex', 'print_latex', 'multiline_latex',
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+
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# sympy.printing.mathml
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'mathml', 'print_mathml',
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# sympy.printing.python
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'python', 'print_python',
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# sympy.printing.pycode
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'pycode',
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# sympy.printing.codeprinter
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'ccode', 'print_ccode', 'cxxcode', 'fcode', 'print_fcode',
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+
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69 |
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# sympy.printing.smtlib
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'smtlib_code',
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+
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# sympy.printing.glsl
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'glsl_code', 'print_glsl',
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+
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+
# sympy.printing.rcode
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76 |
+
'rcode', 'print_rcode',
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77 |
+
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78 |
+
# sympy.printing.jscode
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79 |
+
'jscode', 'print_jscode',
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80 |
+
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81 |
+
# sympy.printing.julia
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82 |
+
'julia_code',
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83 |
+
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84 |
+
# sympy.printing.mathematica
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85 |
+
'mathematica_code',
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86 |
+
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87 |
+
# sympy.printing.octave
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88 |
+
'octave_code',
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89 |
+
|
90 |
+
# sympy.printing.rust
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91 |
+
'rust_code',
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92 |
+
|
93 |
+
# sympy.printing.gtk
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94 |
+
'print_gtk',
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95 |
+
|
96 |
+
# sympy.printing.preview
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97 |
+
'preview',
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98 |
+
|
99 |
+
# sympy.printing.repr
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100 |
+
'srepr',
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101 |
+
|
102 |
+
# sympy.printing.tree
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103 |
+
'print_tree',
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104 |
+
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105 |
+
# sympy.printing.str
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106 |
+
'StrPrinter', 'sstr', 'sstrrepr',
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107 |
+
|
108 |
+
# sympy.printing.tableform
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109 |
+
'TableForm',
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110 |
+
|
111 |
+
# sympy.printing.dot
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112 |
+
'dotprint',
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113 |
+
|
114 |
+
# sympy.printing.maple
|
115 |
+
'maple_code', 'print_maple_code',
|
116 |
+
]
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llmeval-env/lib/python3.10/site-packages/sympy/printing/aesaracode.py
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|
1 |
+
from __future__ import annotations
|
2 |
+
from typing import Any
|
3 |
+
|
4 |
+
from sympy.external import import_module
|
5 |
+
from sympy.printing.printer import Printer
|
6 |
+
from sympy.utilities.iterables import is_sequence
|
7 |
+
import sympy
|
8 |
+
from functools import partial
|
9 |
+
|
10 |
+
|
11 |
+
aesara = import_module('aesara')
|
12 |
+
|
13 |
+
if aesara:
|
14 |
+
aes = aesara.scalar
|
15 |
+
aet = aesara.tensor
|
16 |
+
from aesara.tensor import nlinalg
|
17 |
+
from aesara.tensor.elemwise import Elemwise
|
18 |
+
from aesara.tensor.elemwise import DimShuffle
|
19 |
+
|
20 |
+
# `true_divide` replaced `true_div` in Aesara 2.8.11 (released 2023) to
|
21 |
+
# match NumPy
|
22 |
+
# XXX: Remove this when not needed to support older versions.
|
23 |
+
true_divide = getattr(aet, 'true_divide', None)
|
24 |
+
if true_divide is None:
|
25 |
+
true_divide = aet.true_div
|
26 |
+
|
27 |
+
mapping = {
|
28 |
+
sympy.Add: aet.add,
|
29 |
+
sympy.Mul: aet.mul,
|
30 |
+
sympy.Abs: aet.abs,
|
31 |
+
sympy.sign: aet.sgn,
|
32 |
+
sympy.ceiling: aet.ceil,
|
33 |
+
sympy.floor: aet.floor,
|
34 |
+
sympy.log: aet.log,
|
35 |
+
sympy.exp: aet.exp,
|
36 |
+
sympy.sqrt: aet.sqrt,
|
37 |
+
sympy.cos: aet.cos,
|
38 |
+
sympy.acos: aet.arccos,
|
39 |
+
sympy.sin: aet.sin,
|
40 |
+
sympy.asin: aet.arcsin,
|
41 |
+
sympy.tan: aet.tan,
|
42 |
+
sympy.atan: aet.arctan,
|
43 |
+
sympy.atan2: aet.arctan2,
|
44 |
+
sympy.cosh: aet.cosh,
|
45 |
+
sympy.acosh: aet.arccosh,
|
46 |
+
sympy.sinh: aet.sinh,
|
47 |
+
sympy.asinh: aet.arcsinh,
|
48 |
+
sympy.tanh: aet.tanh,
|
49 |
+
sympy.atanh: aet.arctanh,
|
50 |
+
sympy.re: aet.real,
|
51 |
+
sympy.im: aet.imag,
|
52 |
+
sympy.arg: aet.angle,
|
53 |
+
sympy.erf: aet.erf,
|
54 |
+
sympy.gamma: aet.gamma,
|
55 |
+
sympy.loggamma: aet.gammaln,
|
56 |
+
sympy.Pow: aet.pow,
|
57 |
+
sympy.Eq: aet.eq,
|
58 |
+
sympy.StrictGreaterThan: aet.gt,
|
59 |
+
sympy.StrictLessThan: aet.lt,
|
60 |
+
sympy.LessThan: aet.le,
|
61 |
+
sympy.GreaterThan: aet.ge,
|
62 |
+
sympy.And: aet.bitwise_and, # bitwise
|
63 |
+
sympy.Or: aet.bitwise_or, # bitwise
|
64 |
+
sympy.Not: aet.invert, # bitwise
|
65 |
+
sympy.Xor: aet.bitwise_xor, # bitwise
|
66 |
+
sympy.Max: aet.maximum, # Sympy accept >2 inputs, Aesara only 2
|
67 |
+
sympy.Min: aet.minimum, # Sympy accept >2 inputs, Aesara only 2
|
68 |
+
sympy.conjugate: aet.conj,
|
69 |
+
sympy.core.numbers.ImaginaryUnit: lambda:aet.complex(0,1),
|
70 |
+
# Matrices
|
71 |
+
sympy.MatAdd: Elemwise(aes.add),
|
72 |
+
sympy.HadamardProduct: Elemwise(aes.mul),
|
73 |
+
sympy.Trace: nlinalg.trace,
|
74 |
+
sympy.Determinant : nlinalg.det,
|
75 |
+
sympy.Inverse: nlinalg.matrix_inverse,
|
76 |
+
sympy.Transpose: DimShuffle((False, False), [1, 0]),
|
77 |
+
}
|
78 |
+
|
79 |
+
|
80 |
+
class AesaraPrinter(Printer):
|
81 |
+
""" Code printer which creates Aesara symbolic expression graphs.
|
82 |
+
|
83 |
+
Parameters
|
84 |
+
==========
|
85 |
+
|
86 |
+
cache : dict
|
87 |
+
Cache dictionary to use. If None (default) will use
|
88 |
+
the global cache. To create a printer which does not depend on or alter
|
89 |
+
global state pass an empty dictionary. Note: the dictionary is not
|
90 |
+
copied on initialization of the printer and will be updated in-place,
|
91 |
+
so using the same dict object when creating multiple printers or making
|
92 |
+
multiple calls to :func:`.aesara_code` or :func:`.aesara_function` means
|
93 |
+
the cache is shared between all these applications.
|
94 |
+
|
95 |
+
Attributes
|
96 |
+
==========
|
97 |
+
|
98 |
+
cache : dict
|
99 |
+
A cache of Aesara variables which have been created for SymPy
|
100 |
+
symbol-like objects (e.g. :class:`sympy.core.symbol.Symbol` or
|
101 |
+
:class:`sympy.matrices.expressions.MatrixSymbol`). This is used to
|
102 |
+
ensure that all references to a given symbol in an expression (or
|
103 |
+
multiple expressions) are printed as the same Aesara variable, which is
|
104 |
+
created only once. Symbols are differentiated only by name and type. The
|
105 |
+
format of the cache's contents should be considered opaque to the user.
|
106 |
+
"""
|
107 |
+
printmethod = "_aesara"
|
108 |
+
|
109 |
+
def __init__(self, *args, **kwargs):
|
110 |
+
self.cache = kwargs.pop('cache', {})
|
111 |
+
super().__init__(*args, **kwargs)
|
112 |
+
|
113 |
+
def _get_key(self, s, name=None, dtype=None, broadcastable=None):
|
114 |
+
""" Get the cache key for a SymPy object.
|
115 |
+
|
116 |
+
Parameters
|
117 |
+
==========
|
118 |
+
|
119 |
+
s : sympy.core.basic.Basic
|
120 |
+
SymPy object to get key for.
|
121 |
+
|
122 |
+
name : str
|
123 |
+
Name of object, if it does not have a ``name`` attribute.
|
124 |
+
"""
|
125 |
+
|
126 |
+
if name is None:
|
127 |
+
name = s.name
|
128 |
+
|
129 |
+
return (name, type(s), s.args, dtype, broadcastable)
|
130 |
+
|
131 |
+
def _get_or_create(self, s, name=None, dtype=None, broadcastable=None):
|
132 |
+
"""
|
133 |
+
Get the Aesara variable for a SymPy symbol from the cache, or create it
|
134 |
+
if it does not exist.
|
135 |
+
"""
|
136 |
+
|
137 |
+
# Defaults
|
138 |
+
if name is None:
|
139 |
+
name = s.name
|
140 |
+
if dtype is None:
|
141 |
+
dtype = 'floatX'
|
142 |
+
if broadcastable is None:
|
143 |
+
broadcastable = ()
|
144 |
+
|
145 |
+
key = self._get_key(s, name, dtype=dtype, broadcastable=broadcastable)
|
146 |
+
|
147 |
+
if key in self.cache:
|
148 |
+
return self.cache[key]
|
149 |
+
|
150 |
+
value = aet.tensor(name=name, dtype=dtype, broadcastable=broadcastable)
|
151 |
+
self.cache[key] = value
|
152 |
+
return value
|
153 |
+
|
154 |
+
def _print_Symbol(self, s, **kwargs):
|
155 |
+
dtype = kwargs.get('dtypes', {}).get(s)
|
156 |
+
bc = kwargs.get('broadcastables', {}).get(s)
|
157 |
+
return self._get_or_create(s, dtype=dtype, broadcastable=bc)
|
158 |
+
|
159 |
+
def _print_AppliedUndef(self, s, **kwargs):
|
160 |
+
name = str(type(s)) + '_' + str(s.args[0])
|
161 |
+
dtype = kwargs.get('dtypes', {}).get(s)
|
162 |
+
bc = kwargs.get('broadcastables', {}).get(s)
|
163 |
+
return self._get_or_create(s, name=name, dtype=dtype, broadcastable=bc)
|
164 |
+
|
165 |
+
def _print_Basic(self, expr, **kwargs):
|
166 |
+
op = mapping[type(expr)]
|
167 |
+
children = [self._print(arg, **kwargs) for arg in expr.args]
|
168 |
+
return op(*children)
|
169 |
+
|
170 |
+
def _print_Number(self, n, **kwargs):
|
171 |
+
# Integers already taken care of below, interpret as float
|
172 |
+
return float(n.evalf())
|
173 |
+
|
174 |
+
def _print_MatrixSymbol(self, X, **kwargs):
|
175 |
+
dtype = kwargs.get('dtypes', {}).get(X)
|
176 |
+
return self._get_or_create(X, dtype=dtype, broadcastable=(None, None))
|
177 |
+
|
178 |
+
def _print_DenseMatrix(self, X, **kwargs):
|
179 |
+
if not hasattr(aet, 'stacklists'):
|
180 |
+
raise NotImplementedError(
|
181 |
+
"Matrix translation not yet supported in this version of Aesara")
|
182 |
+
|
183 |
+
return aet.stacklists([
|
184 |
+
[self._print(arg, **kwargs) for arg in L]
|
185 |
+
for L in X.tolist()
|
186 |
+
])
|
187 |
+
|
188 |
+
_print_ImmutableMatrix = _print_ImmutableDenseMatrix = _print_DenseMatrix
|
189 |
+
|
190 |
+
def _print_MatMul(self, expr, **kwargs):
|
191 |
+
children = [self._print(arg, **kwargs) for arg in expr.args]
|
192 |
+
result = children[0]
|
193 |
+
for child in children[1:]:
|
194 |
+
result = aet.dot(result, child)
|
195 |
+
return result
|
196 |
+
|
197 |
+
def _print_MatPow(self, expr, **kwargs):
|
198 |
+
children = [self._print(arg, **kwargs) for arg in expr.args]
|
199 |
+
result = 1
|
200 |
+
if isinstance(children[1], int) and children[1] > 0:
|
201 |
+
for i in range(children[1]):
|
202 |
+
result = aet.dot(result, children[0])
|
203 |
+
else:
|
204 |
+
raise NotImplementedError('''Only non-negative integer
|
205 |
+
powers of matrices can be handled by Aesara at the moment''')
|
206 |
+
return result
|
207 |
+
|
208 |
+
def _print_MatrixSlice(self, expr, **kwargs):
|
209 |
+
parent = self._print(expr.parent, **kwargs)
|
210 |
+
rowslice = self._print(slice(*expr.rowslice), **kwargs)
|
211 |
+
colslice = self._print(slice(*expr.colslice), **kwargs)
|
212 |
+
return parent[rowslice, colslice]
|
213 |
+
|
214 |
+
def _print_BlockMatrix(self, expr, **kwargs):
|
215 |
+
nrows, ncols = expr.blocks.shape
|
216 |
+
blocks = [[self._print(expr.blocks[r, c], **kwargs)
|
217 |
+
for c in range(ncols)]
|
218 |
+
for r in range(nrows)]
|
219 |
+
return aet.join(0, *[aet.join(1, *row) for row in blocks])
|
220 |
+
|
221 |
+
|
222 |
+
def _print_slice(self, expr, **kwargs):
|
223 |
+
return slice(*[self._print(i, **kwargs)
|
224 |
+
if isinstance(i, sympy.Basic) else i
|
225 |
+
for i in (expr.start, expr.stop, expr.step)])
|
226 |
+
|
227 |
+
def _print_Pi(self, expr, **kwargs):
|
228 |
+
return 3.141592653589793
|
229 |
+
|
230 |
+
def _print_Piecewise(self, expr, **kwargs):
|
231 |
+
import numpy as np
|
232 |
+
e, cond = expr.args[0].args # First condition and corresponding value
|
233 |
+
|
234 |
+
# Print conditional expression and value for first condition
|
235 |
+
p_cond = self._print(cond, **kwargs)
|
236 |
+
p_e = self._print(e, **kwargs)
|
237 |
+
|
238 |
+
# One condition only
|
239 |
+
if len(expr.args) == 1:
|
240 |
+
# Return value if condition else NaN
|
241 |
+
return aet.switch(p_cond, p_e, np.nan)
|
242 |
+
|
243 |
+
# Return value_1 if condition_1 else evaluate remaining conditions
|
244 |
+
p_remaining = self._print(sympy.Piecewise(*expr.args[1:]), **kwargs)
|
245 |
+
return aet.switch(p_cond, p_e, p_remaining)
|
246 |
+
|
247 |
+
def _print_Rational(self, expr, **kwargs):
|
248 |
+
return true_divide(self._print(expr.p, **kwargs),
|
249 |
+
self._print(expr.q, **kwargs))
|
250 |
+
|
251 |
+
def _print_Integer(self, expr, **kwargs):
|
252 |
+
return expr.p
|
253 |
+
|
254 |
+
def _print_factorial(self, expr, **kwargs):
|
255 |
+
return self._print(sympy.gamma(expr.args[0] + 1), **kwargs)
|
256 |
+
|
257 |
+
def _print_Derivative(self, deriv, **kwargs):
|
258 |
+
from aesara.gradient import Rop
|
259 |
+
|
260 |
+
rv = self._print(deriv.expr, **kwargs)
|
261 |
+
for var in deriv.variables:
|
262 |
+
var = self._print(var, **kwargs)
|
263 |
+
rv = Rop(rv, var, aet.ones_like(var))
|
264 |
+
return rv
|
265 |
+
|
266 |
+
def emptyPrinter(self, expr):
|
267 |
+
return expr
|
268 |
+
|
269 |
+
def doprint(self, expr, dtypes=None, broadcastables=None):
|
270 |
+
""" Convert a SymPy expression to a Aesara graph variable.
|
271 |
+
|
272 |
+
The ``dtypes`` and ``broadcastables`` arguments are used to specify the
|
273 |
+
data type, dimension, and broadcasting behavior of the Aesara variables
|
274 |
+
corresponding to the free symbols in ``expr``. Each is a mapping from
|
275 |
+
SymPy symbols to the value of the corresponding argument to
|
276 |
+
``aesara.tensor.var.TensorVariable``.
|
277 |
+
|
278 |
+
See the corresponding `documentation page`__ for more information on
|
279 |
+
broadcasting in Aesara.
|
280 |
+
|
281 |
+
.. __: https://aesara.readthedocs.io/en/latest/tutorial/broadcasting.html
|
282 |
+
|
283 |
+
Parameters
|
284 |
+
==========
|
285 |
+
|
286 |
+
expr : sympy.core.expr.Expr
|
287 |
+
SymPy expression to print.
|
288 |
+
|
289 |
+
dtypes : dict
|
290 |
+
Mapping from SymPy symbols to Aesara datatypes to use when creating
|
291 |
+
new Aesara variables for those symbols. Corresponds to the ``dtype``
|
292 |
+
argument to ``aesara.tensor.var.TensorVariable``. Defaults to ``'floatX'``
|
293 |
+
for symbols not included in the mapping.
|
294 |
+
|
295 |
+
broadcastables : dict
|
296 |
+
Mapping from SymPy symbols to the value of the ``broadcastable``
|
297 |
+
argument to ``aesara.tensor.var.TensorVariable`` to use when creating Aesara
|
298 |
+
variables for those symbols. Defaults to the empty tuple for symbols
|
299 |
+
not included in the mapping (resulting in a scalar).
|
300 |
+
|
301 |
+
Returns
|
302 |
+
=======
|
303 |
+
|
304 |
+
aesara.graph.basic.Variable
|
305 |
+
A variable corresponding to the expression's value in a Aesara
|
306 |
+
symbolic expression graph.
|
307 |
+
|
308 |
+
"""
|
309 |
+
if dtypes is None:
|
310 |
+
dtypes = {}
|
311 |
+
if broadcastables is None:
|
312 |
+
broadcastables = {}
|
313 |
+
|
314 |
+
return self._print(expr, dtypes=dtypes, broadcastables=broadcastables)
|
315 |
+
|
316 |
+
|
317 |
+
global_cache: dict[Any, Any] = {}
|
318 |
+
|
319 |
+
|
320 |
+
def aesara_code(expr, cache=None, **kwargs):
|
321 |
+
"""
|
322 |
+
Convert a SymPy expression into a Aesara graph variable.
|
323 |
+
|
324 |
+
Parameters
|
325 |
+
==========
|
326 |
+
|
327 |
+
expr : sympy.core.expr.Expr
|
328 |
+
SymPy expression object to convert.
|
329 |
+
|
330 |
+
cache : dict
|
331 |
+
Cached Aesara variables (see :class:`AesaraPrinter.cache
|
332 |
+
<AesaraPrinter>`). Defaults to the module-level global cache.
|
333 |
+
|
334 |
+
dtypes : dict
|
335 |
+
Passed to :meth:`.AesaraPrinter.doprint`.
|
336 |
+
|
337 |
+
broadcastables : dict
|
338 |
+
Passed to :meth:`.AesaraPrinter.doprint`.
|
339 |
+
|
340 |
+
Returns
|
341 |
+
=======
|
342 |
+
|
343 |
+
aesara.graph.basic.Variable
|
344 |
+
A variable corresponding to the expression's value in a Aesara symbolic
|
345 |
+
expression graph.
|
346 |
+
|
347 |
+
"""
|
348 |
+
if not aesara:
|
349 |
+
raise ImportError("aesara is required for aesara_code")
|
350 |
+
|
351 |
+
if cache is None:
|
352 |
+
cache = global_cache
|
353 |
+
|
354 |
+
return AesaraPrinter(cache=cache, settings={}).doprint(expr, **kwargs)
|
355 |
+
|
356 |
+
|
357 |
+
def dim_handling(inputs, dim=None, dims=None, broadcastables=None):
|
358 |
+
r"""
|
359 |
+
Get value of ``broadcastables`` argument to :func:`.aesara_code` from
|
360 |
+
keyword arguments to :func:`.aesara_function`.
|
361 |
+
|
362 |
+
Included for backwards compatibility.
|
363 |
+
|
364 |
+
Parameters
|
365 |
+
==========
|
366 |
+
|
367 |
+
inputs
|
368 |
+
Sequence of input symbols.
|
369 |
+
|
370 |
+
dim : int
|
371 |
+
Common number of dimensions for all inputs. Overrides other arguments
|
372 |
+
if given.
|
373 |
+
|
374 |
+
dims : dict
|
375 |
+
Mapping from input symbols to number of dimensions. Overrides
|
376 |
+
``broadcastables`` argument if given.
|
377 |
+
|
378 |
+
broadcastables : dict
|
379 |
+
Explicit value of ``broadcastables`` argument to
|
380 |
+
:meth:`.AesaraPrinter.doprint`. If not None function will return this value unchanged.
|
381 |
+
|
382 |
+
Returns
|
383 |
+
=======
|
384 |
+
dict
|
385 |
+
Dictionary mapping elements of ``inputs`` to their "broadcastable"
|
386 |
+
values (tuple of ``bool``\ s).
|
387 |
+
"""
|
388 |
+
if dim is not None:
|
389 |
+
return {s: (False,) * dim for s in inputs}
|
390 |
+
|
391 |
+
if dims is not None:
|
392 |
+
maxdim = max(dims.values())
|
393 |
+
return {
|
394 |
+
s: (False,) * d + (True,) * (maxdim - d)
|
395 |
+
for s, d in dims.items()
|
396 |
+
}
|
397 |
+
|
398 |
+
if broadcastables is not None:
|
399 |
+
return broadcastables
|
400 |
+
|
401 |
+
return {}
|
402 |
+
|
403 |
+
|
404 |
+
def aesara_function(inputs, outputs, scalar=False, *,
|
405 |
+
dim=None, dims=None, broadcastables=None, **kwargs):
|
406 |
+
"""
|
407 |
+
Create a Aesara function from SymPy expressions.
|
408 |
+
|
409 |
+
The inputs and outputs are converted to Aesara variables using
|
410 |
+
:func:`.aesara_code` and then passed to ``aesara.function``.
|
411 |
+
|
412 |
+
Parameters
|
413 |
+
==========
|
414 |
+
|
415 |
+
inputs
|
416 |
+
Sequence of symbols which constitute the inputs of the function.
|
417 |
+
|
418 |
+
outputs
|
419 |
+
Sequence of expressions which constitute the outputs(s) of the
|
420 |
+
function. The free symbols of each expression must be a subset of
|
421 |
+
``inputs``.
|
422 |
+
|
423 |
+
scalar : bool
|
424 |
+
Convert 0-dimensional arrays in output to scalars. This will return a
|
425 |
+
Python wrapper function around the Aesara function object.
|
426 |
+
|
427 |
+
cache : dict
|
428 |
+
Cached Aesara variables (see :class:`AesaraPrinter.cache
|
429 |
+
<AesaraPrinter>`). Defaults to the module-level global cache.
|
430 |
+
|
431 |
+
dtypes : dict
|
432 |
+
Passed to :meth:`.AesaraPrinter.doprint`.
|
433 |
+
|
434 |
+
broadcastables : dict
|
435 |
+
Passed to :meth:`.AesaraPrinter.doprint`.
|
436 |
+
|
437 |
+
dims : dict
|
438 |
+
Alternative to ``broadcastables`` argument. Mapping from elements of
|
439 |
+
``inputs`` to integers indicating the dimension of their associated
|
440 |
+
arrays/tensors. Overrides ``broadcastables`` argument if given.
|
441 |
+
|
442 |
+
dim : int
|
443 |
+
Another alternative to the ``broadcastables`` argument. Common number of
|
444 |
+
dimensions to use for all arrays/tensors.
|
445 |
+
``aesara_function([x, y], [...], dim=2)`` is equivalent to using
|
446 |
+
``broadcastables={x: (False, False), y: (False, False)}``.
|
447 |
+
|
448 |
+
Returns
|
449 |
+
=======
|
450 |
+
callable
|
451 |
+
A callable object which takes values of ``inputs`` as positional
|
452 |
+
arguments and returns an output array for each of the expressions
|
453 |
+
in ``outputs``. If ``outputs`` is a single expression the function will
|
454 |
+
return a Numpy array, if it is a list of multiple expressions the
|
455 |
+
function will return a list of arrays. See description of the ``squeeze``
|
456 |
+
argument above for the behavior when a single output is passed in a list.
|
457 |
+
The returned object will either be an instance of
|
458 |
+
``aesara.compile.function.types.Function`` or a Python wrapper
|
459 |
+
function around one. In both cases, the returned value will have a
|
460 |
+
``aesara_function`` attribute which points to the return value of
|
461 |
+
``aesara.function``.
|
462 |
+
|
463 |
+
Examples
|
464 |
+
========
|
465 |
+
|
466 |
+
>>> from sympy.abc import x, y, z
|
467 |
+
>>> from sympy.printing.aesaracode import aesara_function
|
468 |
+
|
469 |
+
A simple function with one input and one output:
|
470 |
+
|
471 |
+
>>> f1 = aesara_function([x], [x**2 - 1], scalar=True)
|
472 |
+
>>> f1(3)
|
473 |
+
8.0
|
474 |
+
|
475 |
+
A function with multiple inputs and one output:
|
476 |
+
|
477 |
+
>>> f2 = aesara_function([x, y, z], [(x**z + y**z)**(1/z)], scalar=True)
|
478 |
+
>>> f2(3, 4, 2)
|
479 |
+
5.0
|
480 |
+
|
481 |
+
A function with multiple inputs and multiple outputs:
|
482 |
+
|
483 |
+
>>> f3 = aesara_function([x, y], [x**2 + y**2, x**2 - y**2], scalar=True)
|
484 |
+
>>> f3(2, 3)
|
485 |
+
[13.0, -5.0]
|
486 |
+
|
487 |
+
See also
|
488 |
+
========
|
489 |
+
|
490 |
+
dim_handling
|
491 |
+
|
492 |
+
"""
|
493 |
+
if not aesara:
|
494 |
+
raise ImportError("Aesara is required for aesara_function")
|
495 |
+
|
496 |
+
# Pop off non-aesara keyword args
|
497 |
+
cache = kwargs.pop('cache', {})
|
498 |
+
dtypes = kwargs.pop('dtypes', {})
|
499 |
+
|
500 |
+
broadcastables = dim_handling(
|
501 |
+
inputs, dim=dim, dims=dims, broadcastables=broadcastables,
|
502 |
+
)
|
503 |
+
|
504 |
+
# Print inputs/outputs
|
505 |
+
code = partial(aesara_code, cache=cache, dtypes=dtypes,
|
506 |
+
broadcastables=broadcastables)
|
507 |
+
tinputs = list(map(code, inputs))
|
508 |
+
toutputs = list(map(code, outputs))
|
509 |
+
|
510 |
+
#fix constant expressions as variables
|
511 |
+
toutputs = [output if isinstance(output, aesara.graph.basic.Variable) else aet.as_tensor_variable(output) for output in toutputs]
|
512 |
+
|
513 |
+
if len(toutputs) == 1:
|
514 |
+
toutputs = toutputs[0]
|
515 |
+
|
516 |
+
# Compile aesara func
|
517 |
+
func = aesara.function(tinputs, toutputs, **kwargs)
|
518 |
+
|
519 |
+
is_0d = [len(o.variable.broadcastable) == 0 for o in func.outputs]
|
520 |
+
|
521 |
+
# No wrapper required
|
522 |
+
if not scalar or not any(is_0d):
|
523 |
+
func.aesara_function = func
|
524 |
+
return func
|
525 |
+
|
526 |
+
# Create wrapper to convert 0-dimensional outputs to scalars
|
527 |
+
def wrapper(*args):
|
528 |
+
out = func(*args)
|
529 |
+
# out can be array(1.0) or [array(1.0), array(2.0)]
|
530 |
+
|
531 |
+
if is_sequence(out):
|
532 |
+
return [o[()] if is_0d[i] else o for i, o in enumerate(out)]
|
533 |
+
else:
|
534 |
+
return out[()]
|
535 |
+
|
536 |
+
wrapper.__wrapped__ = func
|
537 |
+
wrapper.__doc__ = func.__doc__
|
538 |
+
wrapper.aesara_function = func
|
539 |
+
return wrapper
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/c.py
ADDED
@@ -0,0 +1,747 @@
|
|
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|
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|
1 |
+
"""
|
2 |
+
C code printer
|
3 |
+
|
4 |
+
The C89CodePrinter & C99CodePrinter converts single SymPy expressions into
|
5 |
+
single C expressions, using the functions defined in math.h where possible.
|
6 |
+
|
7 |
+
A complete code generator, which uses ccode extensively, can be found in
|
8 |
+
sympy.utilities.codegen. The codegen module can be used to generate complete
|
9 |
+
source code files that are compilable without further modifications.
|
10 |
+
|
11 |
+
|
12 |
+
"""
|
13 |
+
|
14 |
+
from __future__ import annotations
|
15 |
+
from typing import Any
|
16 |
+
|
17 |
+
from functools import wraps
|
18 |
+
from itertools import chain
|
19 |
+
|
20 |
+
from sympy.core import S
|
21 |
+
from sympy.core.numbers import equal_valued
|
22 |
+
from sympy.codegen.ast import (
|
23 |
+
Assignment, Pointer, Variable, Declaration, Type,
|
24 |
+
real, complex_, integer, bool_, float32, float64, float80,
|
25 |
+
complex64, complex128, intc, value_const, pointer_const,
|
26 |
+
int8, int16, int32, int64, uint8, uint16, uint32, uint64, untyped,
|
27 |
+
none
|
28 |
+
)
|
29 |
+
from sympy.printing.codeprinter import CodePrinter, requires
|
30 |
+
from sympy.printing.precedence import precedence, PRECEDENCE
|
31 |
+
from sympy.sets.fancysets import Range
|
32 |
+
|
33 |
+
# These are defined in the other file so we can avoid importing sympy.codegen
|
34 |
+
# from the top-level 'import sympy'. Export them here as well.
|
35 |
+
from sympy.printing.codeprinter import ccode, print_ccode # noqa:F401
|
36 |
+
|
37 |
+
# dictionary mapping SymPy function to (argument_conditions, C_function).
|
38 |
+
# Used in C89CodePrinter._print_Function(self)
|
39 |
+
known_functions_C89 = {
|
40 |
+
"Abs": [(lambda x: not x.is_integer, "fabs"), (lambda x: x.is_integer, "abs")],
|
41 |
+
"sin": "sin",
|
42 |
+
"cos": "cos",
|
43 |
+
"tan": "tan",
|
44 |
+
"asin": "asin",
|
45 |
+
"acos": "acos",
|
46 |
+
"atan": "atan",
|
47 |
+
"atan2": "atan2",
|
48 |
+
"exp": "exp",
|
49 |
+
"log": "log",
|
50 |
+
"sinh": "sinh",
|
51 |
+
"cosh": "cosh",
|
52 |
+
"tanh": "tanh",
|
53 |
+
"floor": "floor",
|
54 |
+
"ceiling": "ceil",
|
55 |
+
"sqrt": "sqrt", # To enable automatic rewrites
|
56 |
+
}
|
57 |
+
|
58 |
+
known_functions_C99 = dict(known_functions_C89, **{
|
59 |
+
'exp2': 'exp2',
|
60 |
+
'expm1': 'expm1',
|
61 |
+
'log10': 'log10',
|
62 |
+
'log2': 'log2',
|
63 |
+
'log1p': 'log1p',
|
64 |
+
'Cbrt': 'cbrt',
|
65 |
+
'hypot': 'hypot',
|
66 |
+
'fma': 'fma',
|
67 |
+
'loggamma': 'lgamma',
|
68 |
+
'erfc': 'erfc',
|
69 |
+
'Max': 'fmax',
|
70 |
+
'Min': 'fmin',
|
71 |
+
"asinh": "asinh",
|
72 |
+
"acosh": "acosh",
|
73 |
+
"atanh": "atanh",
|
74 |
+
"erf": "erf",
|
75 |
+
"gamma": "tgamma",
|
76 |
+
})
|
77 |
+
|
78 |
+
# These are the core reserved words in the C language. Taken from:
|
79 |
+
# https://en.cppreference.com/w/c/keyword
|
80 |
+
|
81 |
+
reserved_words = [
|
82 |
+
'auto', 'break', 'case', 'char', 'const', 'continue', 'default', 'do',
|
83 |
+
'double', 'else', 'enum', 'extern', 'float', 'for', 'goto', 'if', 'int',
|
84 |
+
'long', 'register', 'return', 'short', 'signed', 'sizeof', 'static',
|
85 |
+
'struct', 'entry', # never standardized, we'll leave it here anyway
|
86 |
+
'switch', 'typedef', 'union', 'unsigned', 'void', 'volatile', 'while'
|
87 |
+
]
|
88 |
+
|
89 |
+
reserved_words_c99 = ['inline', 'restrict']
|
90 |
+
|
91 |
+
def get_math_macros():
|
92 |
+
""" Returns a dictionary with math-related macros from math.h/cmath
|
93 |
+
|
94 |
+
Note that these macros are not strictly required by the C/C++-standard.
|
95 |
+
For MSVC they are enabled by defining "_USE_MATH_DEFINES" (preferably
|
96 |
+
via a compilation flag).
|
97 |
+
|
98 |
+
Returns
|
99 |
+
=======
|
100 |
+
|
101 |
+
Dictionary mapping SymPy expressions to strings (macro names)
|
102 |
+
|
103 |
+
"""
|
104 |
+
from sympy.codegen.cfunctions import log2, Sqrt
|
105 |
+
from sympy.functions.elementary.exponential import log
|
106 |
+
from sympy.functions.elementary.miscellaneous import sqrt
|
107 |
+
|
108 |
+
return {
|
109 |
+
S.Exp1: 'M_E',
|
110 |
+
log2(S.Exp1): 'M_LOG2E',
|
111 |
+
1/log(2): 'M_LOG2E',
|
112 |
+
log(2): 'M_LN2',
|
113 |
+
log(10): 'M_LN10',
|
114 |
+
S.Pi: 'M_PI',
|
115 |
+
S.Pi/2: 'M_PI_2',
|
116 |
+
S.Pi/4: 'M_PI_4',
|
117 |
+
1/S.Pi: 'M_1_PI',
|
118 |
+
2/S.Pi: 'M_2_PI',
|
119 |
+
2/sqrt(S.Pi): 'M_2_SQRTPI',
|
120 |
+
2/Sqrt(S.Pi): 'M_2_SQRTPI',
|
121 |
+
sqrt(2): 'M_SQRT2',
|
122 |
+
Sqrt(2): 'M_SQRT2',
|
123 |
+
1/sqrt(2): 'M_SQRT1_2',
|
124 |
+
1/Sqrt(2): 'M_SQRT1_2'
|
125 |
+
}
|
126 |
+
|
127 |
+
|
128 |
+
def _as_macro_if_defined(meth):
|
129 |
+
""" Decorator for printer methods
|
130 |
+
|
131 |
+
When a Printer's method is decorated using this decorator the expressions printed
|
132 |
+
will first be looked for in the attribute ``math_macros``, and if present it will
|
133 |
+
print the macro name in ``math_macros`` followed by a type suffix for the type
|
134 |
+
``real``. e.g. printing ``sympy.pi`` would print ``M_PIl`` if real is mapped to float80.
|
135 |
+
|
136 |
+
"""
|
137 |
+
@wraps(meth)
|
138 |
+
def _meth_wrapper(self, expr, **kwargs):
|
139 |
+
if expr in self.math_macros:
|
140 |
+
return '%s%s' % (self.math_macros[expr], self._get_math_macro_suffix(real))
|
141 |
+
else:
|
142 |
+
return meth(self, expr, **kwargs)
|
143 |
+
|
144 |
+
return _meth_wrapper
|
145 |
+
|
146 |
+
|
147 |
+
class C89CodePrinter(CodePrinter):
|
148 |
+
"""A printer to convert Python expressions to strings of C code"""
|
149 |
+
printmethod = "_ccode"
|
150 |
+
language = "C"
|
151 |
+
standard = "C89"
|
152 |
+
reserved_words = set(reserved_words)
|
153 |
+
|
154 |
+
_default_settings: dict[str, Any] = {
|
155 |
+
'order': None,
|
156 |
+
'full_prec': 'auto',
|
157 |
+
'precision': 17,
|
158 |
+
'user_functions': {},
|
159 |
+
'human': True,
|
160 |
+
'allow_unknown_functions': False,
|
161 |
+
'contract': True,
|
162 |
+
'dereference': set(),
|
163 |
+
'error_on_reserved': False,
|
164 |
+
'reserved_word_suffix': '_',
|
165 |
+
}
|
166 |
+
|
167 |
+
type_aliases = {
|
168 |
+
real: float64,
|
169 |
+
complex_: complex128,
|
170 |
+
integer: intc
|
171 |
+
}
|
172 |
+
|
173 |
+
type_mappings: dict[Type, Any] = {
|
174 |
+
real: 'double',
|
175 |
+
intc: 'int',
|
176 |
+
float32: 'float',
|
177 |
+
float64: 'double',
|
178 |
+
integer: 'int',
|
179 |
+
bool_: 'bool',
|
180 |
+
int8: 'int8_t',
|
181 |
+
int16: 'int16_t',
|
182 |
+
int32: 'int32_t',
|
183 |
+
int64: 'int64_t',
|
184 |
+
uint8: 'int8_t',
|
185 |
+
uint16: 'int16_t',
|
186 |
+
uint32: 'int32_t',
|
187 |
+
uint64: 'int64_t',
|
188 |
+
}
|
189 |
+
|
190 |
+
type_headers = {
|
191 |
+
bool_: {'stdbool.h'},
|
192 |
+
int8: {'stdint.h'},
|
193 |
+
int16: {'stdint.h'},
|
194 |
+
int32: {'stdint.h'},
|
195 |
+
int64: {'stdint.h'},
|
196 |
+
uint8: {'stdint.h'},
|
197 |
+
uint16: {'stdint.h'},
|
198 |
+
uint32: {'stdint.h'},
|
199 |
+
uint64: {'stdint.h'},
|
200 |
+
}
|
201 |
+
|
202 |
+
# Macros needed to be defined when using a Type
|
203 |
+
type_macros: dict[Type, tuple[str, ...]] = {}
|
204 |
+
|
205 |
+
type_func_suffixes = {
|
206 |
+
float32: 'f',
|
207 |
+
float64: '',
|
208 |
+
float80: 'l'
|
209 |
+
}
|
210 |
+
|
211 |
+
type_literal_suffixes = {
|
212 |
+
float32: 'F',
|
213 |
+
float64: '',
|
214 |
+
float80: 'L'
|
215 |
+
}
|
216 |
+
|
217 |
+
type_math_macro_suffixes = {
|
218 |
+
float80: 'l'
|
219 |
+
}
|
220 |
+
|
221 |
+
math_macros = None
|
222 |
+
|
223 |
+
_ns = '' # namespace, C++ uses 'std::'
|
224 |
+
# known_functions-dict to copy
|
225 |
+
_kf: dict[str, Any] = known_functions_C89
|
226 |
+
|
227 |
+
def __init__(self, settings=None):
|
228 |
+
settings = settings or {}
|
229 |
+
if self.math_macros is None:
|
230 |
+
self.math_macros = settings.pop('math_macros', get_math_macros())
|
231 |
+
self.type_aliases = dict(chain(self.type_aliases.items(),
|
232 |
+
settings.pop('type_aliases', {}).items()))
|
233 |
+
self.type_mappings = dict(chain(self.type_mappings.items(),
|
234 |
+
settings.pop('type_mappings', {}).items()))
|
235 |
+
self.type_headers = dict(chain(self.type_headers.items(),
|
236 |
+
settings.pop('type_headers', {}).items()))
|
237 |
+
self.type_macros = dict(chain(self.type_macros.items(),
|
238 |
+
settings.pop('type_macros', {}).items()))
|
239 |
+
self.type_func_suffixes = dict(chain(self.type_func_suffixes.items(),
|
240 |
+
settings.pop('type_func_suffixes', {}).items()))
|
241 |
+
self.type_literal_suffixes = dict(chain(self.type_literal_suffixes.items(),
|
242 |
+
settings.pop('type_literal_suffixes', {}).items()))
|
243 |
+
self.type_math_macro_suffixes = dict(chain(self.type_math_macro_suffixes.items(),
|
244 |
+
settings.pop('type_math_macro_suffixes', {}).items()))
|
245 |
+
super().__init__(settings)
|
246 |
+
self.known_functions = dict(self._kf, **settings.get('user_functions', {}))
|
247 |
+
self._dereference = set(settings.get('dereference', []))
|
248 |
+
self.headers = set()
|
249 |
+
self.libraries = set()
|
250 |
+
self.macros = set()
|
251 |
+
|
252 |
+
def _rate_index_position(self, p):
|
253 |
+
return p*5
|
254 |
+
|
255 |
+
def _get_statement(self, codestring):
|
256 |
+
""" Get code string as a statement - i.e. ending with a semicolon. """
|
257 |
+
return codestring if codestring.endswith(';') else codestring + ';'
|
258 |
+
|
259 |
+
def _get_comment(self, text):
|
260 |
+
return "/* {} */".format(text)
|
261 |
+
|
262 |
+
def _declare_number_const(self, name, value):
|
263 |
+
type_ = self.type_aliases[real]
|
264 |
+
var = Variable(name, type=type_, value=value.evalf(type_.decimal_dig), attrs={value_const})
|
265 |
+
decl = Declaration(var)
|
266 |
+
return self._get_statement(self._print(decl))
|
267 |
+
|
268 |
+
def _format_code(self, lines):
|
269 |
+
return self.indent_code(lines)
|
270 |
+
|
271 |
+
def _traverse_matrix_indices(self, mat):
|
272 |
+
rows, cols = mat.shape
|
273 |
+
return ((i, j) for i in range(rows) for j in range(cols))
|
274 |
+
|
275 |
+
@_as_macro_if_defined
|
276 |
+
def _print_Mul(self, expr, **kwargs):
|
277 |
+
return super()._print_Mul(expr, **kwargs)
|
278 |
+
|
279 |
+
@_as_macro_if_defined
|
280 |
+
def _print_Pow(self, expr):
|
281 |
+
if "Pow" in self.known_functions:
|
282 |
+
return self._print_Function(expr)
|
283 |
+
PREC = precedence(expr)
|
284 |
+
suffix = self._get_func_suffix(real)
|
285 |
+
if equal_valued(expr.exp, -1):
|
286 |
+
literal_suffix = self._get_literal_suffix(real)
|
287 |
+
return '1.0%s/%s' % (literal_suffix, self.parenthesize(expr.base, PREC))
|
288 |
+
elif equal_valued(expr.exp, 0.5):
|
289 |
+
return '%ssqrt%s(%s)' % (self._ns, suffix, self._print(expr.base))
|
290 |
+
elif expr.exp == S.One/3 and self.standard != 'C89':
|
291 |
+
return '%scbrt%s(%s)' % (self._ns, suffix, self._print(expr.base))
|
292 |
+
else:
|
293 |
+
return '%spow%s(%s, %s)' % (self._ns, suffix, self._print(expr.base),
|
294 |
+
self._print(expr.exp))
|
295 |
+
|
296 |
+
def _print_Mod(self, expr):
|
297 |
+
num, den = expr.args
|
298 |
+
if num.is_integer and den.is_integer:
|
299 |
+
PREC = precedence(expr)
|
300 |
+
snum, sden = [self.parenthesize(arg, PREC) for arg in expr.args]
|
301 |
+
# % is remainder (same sign as numerator), not modulo (same sign as
|
302 |
+
# denominator), in C. Hence, % only works as modulo if both numbers
|
303 |
+
# have the same sign
|
304 |
+
if (num.is_nonnegative and den.is_nonnegative or
|
305 |
+
num.is_nonpositive and den.is_nonpositive):
|
306 |
+
return f"{snum} % {sden}"
|
307 |
+
return f"(({snum} % {sden}) + {sden}) % {sden}"
|
308 |
+
# Not guaranteed integer
|
309 |
+
return self._print_math_func(expr, known='fmod')
|
310 |
+
|
311 |
+
def _print_Rational(self, expr):
|
312 |
+
p, q = int(expr.p), int(expr.q)
|
313 |
+
suffix = self._get_literal_suffix(real)
|
314 |
+
return '%d.0%s/%d.0%s' % (p, suffix, q, suffix)
|
315 |
+
|
316 |
+
def _print_Indexed(self, expr):
|
317 |
+
# calculate index for 1d array
|
318 |
+
offset = getattr(expr.base, 'offset', S.Zero)
|
319 |
+
strides = getattr(expr.base, 'strides', None)
|
320 |
+
indices = expr.indices
|
321 |
+
|
322 |
+
if strides is None or isinstance(strides, str):
|
323 |
+
dims = expr.shape
|
324 |
+
shift = S.One
|
325 |
+
temp = ()
|
326 |
+
if strides == 'C' or strides is None:
|
327 |
+
traversal = reversed(range(expr.rank))
|
328 |
+
indices = indices[::-1]
|
329 |
+
elif strides == 'F':
|
330 |
+
traversal = range(expr.rank)
|
331 |
+
|
332 |
+
for i in traversal:
|
333 |
+
temp += (shift,)
|
334 |
+
shift *= dims[i]
|
335 |
+
strides = temp
|
336 |
+
flat_index = sum([x[0]*x[1] for x in zip(indices, strides)]) + offset
|
337 |
+
return "%s[%s]" % (self._print(expr.base.label),
|
338 |
+
self._print(flat_index))
|
339 |
+
|
340 |
+
def _print_Idx(self, expr):
|
341 |
+
return self._print(expr.label)
|
342 |
+
|
343 |
+
@_as_macro_if_defined
|
344 |
+
def _print_NumberSymbol(self, expr):
|
345 |
+
return super()._print_NumberSymbol(expr)
|
346 |
+
|
347 |
+
def _print_Infinity(self, expr):
|
348 |
+
return 'HUGE_VAL'
|
349 |
+
|
350 |
+
def _print_NegativeInfinity(self, expr):
|
351 |
+
return '-HUGE_VAL'
|
352 |
+
|
353 |
+
def _print_Piecewise(self, expr):
|
354 |
+
if expr.args[-1].cond != True:
|
355 |
+
# We need the last conditional to be a True, otherwise the resulting
|
356 |
+
# function may not return a result.
|
357 |
+
raise ValueError("All Piecewise expressions must contain an "
|
358 |
+
"(expr, True) statement to be used as a default "
|
359 |
+
"condition. Without one, the generated "
|
360 |
+
"expression may not evaluate to anything under "
|
361 |
+
"some condition.")
|
362 |
+
lines = []
|
363 |
+
if expr.has(Assignment):
|
364 |
+
for i, (e, c) in enumerate(expr.args):
|
365 |
+
if i == 0:
|
366 |
+
lines.append("if (%s) {" % self._print(c))
|
367 |
+
elif i == len(expr.args) - 1 and c == True:
|
368 |
+
lines.append("else {")
|
369 |
+
else:
|
370 |
+
lines.append("else if (%s) {" % self._print(c))
|
371 |
+
code0 = self._print(e)
|
372 |
+
lines.append(code0)
|
373 |
+
lines.append("}")
|
374 |
+
return "\n".join(lines)
|
375 |
+
else:
|
376 |
+
# The piecewise was used in an expression, need to do inline
|
377 |
+
# operators. This has the downside that inline operators will
|
378 |
+
# not work for statements that span multiple lines (Matrix or
|
379 |
+
# Indexed expressions).
|
380 |
+
ecpairs = ["((%s) ? (\n%s\n)\n" % (self._print(c),
|
381 |
+
self._print(e))
|
382 |
+
for e, c in expr.args[:-1]]
|
383 |
+
last_line = ": (\n%s\n)" % self._print(expr.args[-1].expr)
|
384 |
+
return ": ".join(ecpairs) + last_line + " ".join([")"*len(ecpairs)])
|
385 |
+
|
386 |
+
def _print_ITE(self, expr):
|
387 |
+
from sympy.functions import Piecewise
|
388 |
+
return self._print(expr.rewrite(Piecewise, deep=False))
|
389 |
+
|
390 |
+
def _print_MatrixElement(self, expr):
|
391 |
+
return "{}[{}]".format(self.parenthesize(expr.parent, PRECEDENCE["Atom"],
|
392 |
+
strict=True), expr.j + expr.i*expr.parent.shape[1])
|
393 |
+
|
394 |
+
def _print_Symbol(self, expr):
|
395 |
+
name = super()._print_Symbol(expr)
|
396 |
+
if expr in self._settings['dereference']:
|
397 |
+
return '(*{})'.format(name)
|
398 |
+
else:
|
399 |
+
return name
|
400 |
+
|
401 |
+
def _print_Relational(self, expr):
|
402 |
+
lhs_code = self._print(expr.lhs)
|
403 |
+
rhs_code = self._print(expr.rhs)
|
404 |
+
op = expr.rel_op
|
405 |
+
return "{} {} {}".format(lhs_code, op, rhs_code)
|
406 |
+
|
407 |
+
def _print_For(self, expr):
|
408 |
+
target = self._print(expr.target)
|
409 |
+
if isinstance(expr.iterable, Range):
|
410 |
+
start, stop, step = expr.iterable.args
|
411 |
+
else:
|
412 |
+
raise NotImplementedError("Only iterable currently supported is Range")
|
413 |
+
body = self._print(expr.body)
|
414 |
+
return ('for ({target} = {start}; {target} < {stop}; {target} += '
|
415 |
+
'{step}) {{\n{body}\n}}').format(target=target, start=start,
|
416 |
+
stop=stop, step=step, body=body)
|
417 |
+
|
418 |
+
def _print_sign(self, func):
|
419 |
+
return '((({0}) > 0) - (({0}) < 0))'.format(self._print(func.args[0]))
|
420 |
+
|
421 |
+
def _print_Max(self, expr):
|
422 |
+
if "Max" in self.known_functions:
|
423 |
+
return self._print_Function(expr)
|
424 |
+
def inner_print_max(args): # The more natural abstraction of creating
|
425 |
+
if len(args) == 1: # and printing smaller Max objects is slow
|
426 |
+
return self._print(args[0]) # when there are many arguments.
|
427 |
+
half = len(args) // 2
|
428 |
+
return "((%(a)s > %(b)s) ? %(a)s : %(b)s)" % {
|
429 |
+
'a': inner_print_max(args[:half]),
|
430 |
+
'b': inner_print_max(args[half:])
|
431 |
+
}
|
432 |
+
return inner_print_max(expr.args)
|
433 |
+
|
434 |
+
def _print_Min(self, expr):
|
435 |
+
if "Min" in self.known_functions:
|
436 |
+
return self._print_Function(expr)
|
437 |
+
def inner_print_min(args): # The more natural abstraction of creating
|
438 |
+
if len(args) == 1: # and printing smaller Min objects is slow
|
439 |
+
return self._print(args[0]) # when there are many arguments.
|
440 |
+
half = len(args) // 2
|
441 |
+
return "((%(a)s < %(b)s) ? %(a)s : %(b)s)" % {
|
442 |
+
'a': inner_print_min(args[:half]),
|
443 |
+
'b': inner_print_min(args[half:])
|
444 |
+
}
|
445 |
+
return inner_print_min(expr.args)
|
446 |
+
|
447 |
+
def indent_code(self, code):
|
448 |
+
"""Accepts a string of code or a list of code lines"""
|
449 |
+
|
450 |
+
if isinstance(code, str):
|
451 |
+
code_lines = self.indent_code(code.splitlines(True))
|
452 |
+
return ''.join(code_lines)
|
453 |
+
|
454 |
+
tab = " "
|
455 |
+
inc_token = ('{', '(', '{\n', '(\n')
|
456 |
+
dec_token = ('}', ')')
|
457 |
+
|
458 |
+
code = [line.lstrip(' \t') for line in code]
|
459 |
+
|
460 |
+
increase = [int(any(map(line.endswith, inc_token))) for line in code]
|
461 |
+
decrease = [int(any(map(line.startswith, dec_token))) for line in code]
|
462 |
+
|
463 |
+
pretty = []
|
464 |
+
level = 0
|
465 |
+
for n, line in enumerate(code):
|
466 |
+
if line in ('', '\n'):
|
467 |
+
pretty.append(line)
|
468 |
+
continue
|
469 |
+
level -= decrease[n]
|
470 |
+
pretty.append("%s%s" % (tab*level, line))
|
471 |
+
level += increase[n]
|
472 |
+
return pretty
|
473 |
+
|
474 |
+
def _get_func_suffix(self, type_):
|
475 |
+
return self.type_func_suffixes[self.type_aliases.get(type_, type_)]
|
476 |
+
|
477 |
+
def _get_literal_suffix(self, type_):
|
478 |
+
return self.type_literal_suffixes[self.type_aliases.get(type_, type_)]
|
479 |
+
|
480 |
+
def _get_math_macro_suffix(self, type_):
|
481 |
+
alias = self.type_aliases.get(type_, type_)
|
482 |
+
dflt = self.type_math_macro_suffixes.get(alias, '')
|
483 |
+
return self.type_math_macro_suffixes.get(type_, dflt)
|
484 |
+
|
485 |
+
def _print_Tuple(self, expr):
|
486 |
+
return '{'+', '.join(self._print(e) for e in expr)+'}'
|
487 |
+
|
488 |
+
_print_List = _print_Tuple
|
489 |
+
|
490 |
+
def _print_Type(self, type_):
|
491 |
+
self.headers.update(self.type_headers.get(type_, set()))
|
492 |
+
self.macros.update(self.type_macros.get(type_, set()))
|
493 |
+
return self._print(self.type_mappings.get(type_, type_.name))
|
494 |
+
|
495 |
+
def _print_Declaration(self, decl):
|
496 |
+
from sympy.codegen.cnodes import restrict
|
497 |
+
var = decl.variable
|
498 |
+
val = var.value
|
499 |
+
if var.type == untyped:
|
500 |
+
raise ValueError("C does not support untyped variables")
|
501 |
+
|
502 |
+
if isinstance(var, Pointer):
|
503 |
+
result = '{vc}{t} *{pc} {r}{s}'.format(
|
504 |
+
vc='const ' if value_const in var.attrs else '',
|
505 |
+
t=self._print(var.type),
|
506 |
+
pc=' const' if pointer_const in var.attrs else '',
|
507 |
+
r='restrict ' if restrict in var.attrs else '',
|
508 |
+
s=self._print(var.symbol)
|
509 |
+
)
|
510 |
+
elif isinstance(var, Variable):
|
511 |
+
result = '{vc}{t} {s}'.format(
|
512 |
+
vc='const ' if value_const in var.attrs else '',
|
513 |
+
t=self._print(var.type),
|
514 |
+
s=self._print(var.symbol)
|
515 |
+
)
|
516 |
+
else:
|
517 |
+
raise NotImplementedError("Unknown type of var: %s" % type(var))
|
518 |
+
if val != None: # Must be "!= None", cannot be "is not None"
|
519 |
+
result += ' = %s' % self._print(val)
|
520 |
+
return result
|
521 |
+
|
522 |
+
def _print_Float(self, flt):
|
523 |
+
type_ = self.type_aliases.get(real, real)
|
524 |
+
self.macros.update(self.type_macros.get(type_, set()))
|
525 |
+
suffix = self._get_literal_suffix(type_)
|
526 |
+
num = str(flt.evalf(type_.decimal_dig))
|
527 |
+
if 'e' not in num and '.' not in num:
|
528 |
+
num += '.0'
|
529 |
+
num_parts = num.split('e')
|
530 |
+
num_parts[0] = num_parts[0].rstrip('0')
|
531 |
+
if num_parts[0].endswith('.'):
|
532 |
+
num_parts[0] += '0'
|
533 |
+
return 'e'.join(num_parts) + suffix
|
534 |
+
|
535 |
+
@requires(headers={'stdbool.h'})
|
536 |
+
def _print_BooleanTrue(self, expr):
|
537 |
+
return 'true'
|
538 |
+
|
539 |
+
@requires(headers={'stdbool.h'})
|
540 |
+
def _print_BooleanFalse(self, expr):
|
541 |
+
return 'false'
|
542 |
+
|
543 |
+
def _print_Element(self, elem):
|
544 |
+
if elem.strides == None: # Must be "== None", cannot be "is None"
|
545 |
+
if elem.offset != None: # Must be "!= None", cannot be "is not None"
|
546 |
+
raise ValueError("Expected strides when offset is given")
|
547 |
+
idxs = ']['.join((self._print(arg) for arg in elem.indices))
|
548 |
+
else:
|
549 |
+
global_idx = sum([i*s for i, s in zip(elem.indices, elem.strides)])
|
550 |
+
if elem.offset != None: # Must be "!= None", cannot be "is not None"
|
551 |
+
global_idx += elem.offset
|
552 |
+
idxs = self._print(global_idx)
|
553 |
+
|
554 |
+
return "{symb}[{idxs}]".format(
|
555 |
+
symb=self._print(elem.symbol),
|
556 |
+
idxs=idxs
|
557 |
+
)
|
558 |
+
|
559 |
+
def _print_CodeBlock(self, expr):
|
560 |
+
""" Elements of code blocks printed as statements. """
|
561 |
+
return '\n'.join([self._get_statement(self._print(i)) for i in expr.args])
|
562 |
+
|
563 |
+
def _print_While(self, expr):
|
564 |
+
return 'while ({condition}) {{\n{body}\n}}'.format(**expr.kwargs(
|
565 |
+
apply=lambda arg: self._print(arg)))
|
566 |
+
|
567 |
+
def _print_Scope(self, expr):
|
568 |
+
return '{\n%s\n}' % self._print_CodeBlock(expr.body)
|
569 |
+
|
570 |
+
@requires(headers={'stdio.h'})
|
571 |
+
def _print_Print(self, expr):
|
572 |
+
return 'printf({fmt}, {pargs})'.format(
|
573 |
+
fmt=self._print(expr.format_string),
|
574 |
+
pargs=', '.join((self._print(arg) for arg in expr.print_args))
|
575 |
+
)
|
576 |
+
|
577 |
+
def _print_FunctionPrototype(self, expr):
|
578 |
+
pars = ', '.join((self._print(Declaration(arg)) for arg in expr.parameters))
|
579 |
+
return "%s %s(%s)" % (
|
580 |
+
tuple((self._print(arg) for arg in (expr.return_type, expr.name))) + (pars,)
|
581 |
+
)
|
582 |
+
|
583 |
+
def _print_FunctionDefinition(self, expr):
|
584 |
+
return "%s%s" % (self._print_FunctionPrototype(expr),
|
585 |
+
self._print_Scope(expr))
|
586 |
+
|
587 |
+
def _print_Return(self, expr):
|
588 |
+
arg, = expr.args
|
589 |
+
return 'return %s' % self._print(arg)
|
590 |
+
|
591 |
+
def _print_CommaOperator(self, expr):
|
592 |
+
return '(%s)' % ', '.join((self._print(arg) for arg in expr.args))
|
593 |
+
|
594 |
+
def _print_Label(self, expr):
|
595 |
+
if expr.body == none:
|
596 |
+
return '%s:' % str(expr.name)
|
597 |
+
if len(expr.body.args) == 1:
|
598 |
+
return '%s:\n%s' % (str(expr.name), self._print_CodeBlock(expr.body))
|
599 |
+
return '%s:\n{\n%s\n}' % (str(expr.name), self._print_CodeBlock(expr.body))
|
600 |
+
|
601 |
+
def _print_goto(self, expr):
|
602 |
+
return 'goto %s' % expr.label.name
|
603 |
+
|
604 |
+
def _print_PreIncrement(self, expr):
|
605 |
+
arg, = expr.args
|
606 |
+
return '++(%s)' % self._print(arg)
|
607 |
+
|
608 |
+
def _print_PostIncrement(self, expr):
|
609 |
+
arg, = expr.args
|
610 |
+
return '(%s)++' % self._print(arg)
|
611 |
+
|
612 |
+
def _print_PreDecrement(self, expr):
|
613 |
+
arg, = expr.args
|
614 |
+
return '--(%s)' % self._print(arg)
|
615 |
+
|
616 |
+
def _print_PostDecrement(self, expr):
|
617 |
+
arg, = expr.args
|
618 |
+
return '(%s)--' % self._print(arg)
|
619 |
+
|
620 |
+
def _print_struct(self, expr):
|
621 |
+
return "%(keyword)s %(name)s {\n%(lines)s}" % {
|
622 |
+
"keyword": expr.__class__.__name__, "name": expr.name, "lines": ';\n'.join(
|
623 |
+
[self._print(decl) for decl in expr.declarations] + [''])
|
624 |
+
}
|
625 |
+
|
626 |
+
def _print_BreakToken(self, _):
|
627 |
+
return 'break'
|
628 |
+
|
629 |
+
def _print_ContinueToken(self, _):
|
630 |
+
return 'continue'
|
631 |
+
|
632 |
+
_print_union = _print_struct
|
633 |
+
|
634 |
+
class C99CodePrinter(C89CodePrinter):
|
635 |
+
standard = 'C99'
|
636 |
+
reserved_words = set(reserved_words + reserved_words_c99)
|
637 |
+
type_mappings=dict(chain(C89CodePrinter.type_mappings.items(), {
|
638 |
+
complex64: 'float complex',
|
639 |
+
complex128: 'double complex',
|
640 |
+
}.items()))
|
641 |
+
type_headers = dict(chain(C89CodePrinter.type_headers.items(), {
|
642 |
+
complex64: {'complex.h'},
|
643 |
+
complex128: {'complex.h'}
|
644 |
+
}.items()))
|
645 |
+
|
646 |
+
# known_functions-dict to copy
|
647 |
+
_kf: dict[str, Any] = known_functions_C99
|
648 |
+
|
649 |
+
# functions with versions with 'f' and 'l' suffixes:
|
650 |
+
_prec_funcs = ('fabs fmod remainder remquo fma fmax fmin fdim nan exp exp2'
|
651 |
+
' expm1 log log10 log2 log1p pow sqrt cbrt hypot sin cos tan'
|
652 |
+
' asin acos atan atan2 sinh cosh tanh asinh acosh atanh erf'
|
653 |
+
' erfc tgamma lgamma ceil floor trunc round nearbyint rint'
|
654 |
+
' frexp ldexp modf scalbn ilogb logb nextafter copysign').split()
|
655 |
+
|
656 |
+
def _print_Infinity(self, expr):
|
657 |
+
return 'INFINITY'
|
658 |
+
|
659 |
+
def _print_NegativeInfinity(self, expr):
|
660 |
+
return '-INFINITY'
|
661 |
+
|
662 |
+
def _print_NaN(self, expr):
|
663 |
+
return 'NAN'
|
664 |
+
|
665 |
+
# tgamma was already covered by 'known_functions' dict
|
666 |
+
|
667 |
+
@requires(headers={'math.h'}, libraries={'m'})
|
668 |
+
@_as_macro_if_defined
|
669 |
+
def _print_math_func(self, expr, nest=False, known=None):
|
670 |
+
if known is None:
|
671 |
+
known = self.known_functions[expr.__class__.__name__]
|
672 |
+
if not isinstance(known, str):
|
673 |
+
for cb, name in known:
|
674 |
+
if cb(*expr.args):
|
675 |
+
known = name
|
676 |
+
break
|
677 |
+
else:
|
678 |
+
raise ValueError("No matching printer")
|
679 |
+
try:
|
680 |
+
return known(self, *expr.args)
|
681 |
+
except TypeError:
|
682 |
+
suffix = self._get_func_suffix(real) if self._ns + known in self._prec_funcs else ''
|
683 |
+
|
684 |
+
if nest:
|
685 |
+
args = self._print(expr.args[0])
|
686 |
+
if len(expr.args) > 1:
|
687 |
+
paren_pile = ''
|
688 |
+
for curr_arg in expr.args[1:-1]:
|
689 |
+
paren_pile += ')'
|
690 |
+
args += ', {ns}{name}{suffix}({next}'.format(
|
691 |
+
ns=self._ns,
|
692 |
+
name=known,
|
693 |
+
suffix=suffix,
|
694 |
+
next = self._print(curr_arg)
|
695 |
+
)
|
696 |
+
args += ', %s%s' % (
|
697 |
+
self._print(expr.func(expr.args[-1])),
|
698 |
+
paren_pile
|
699 |
+
)
|
700 |
+
else:
|
701 |
+
args = ', '.join((self._print(arg) for arg in expr.args))
|
702 |
+
return '{ns}{name}{suffix}({args})'.format(
|
703 |
+
ns=self._ns,
|
704 |
+
name=known,
|
705 |
+
suffix=suffix,
|
706 |
+
args=args
|
707 |
+
)
|
708 |
+
|
709 |
+
def _print_Max(self, expr):
|
710 |
+
return self._print_math_func(expr, nest=True)
|
711 |
+
|
712 |
+
def _print_Min(self, expr):
|
713 |
+
return self._print_math_func(expr, nest=True)
|
714 |
+
|
715 |
+
def _get_loop_opening_ending(self, indices):
|
716 |
+
open_lines = []
|
717 |
+
close_lines = []
|
718 |
+
loopstart = "for (int %(var)s=%(start)s; %(var)s<%(end)s; %(var)s++){" # C99
|
719 |
+
for i in indices:
|
720 |
+
# C arrays start at 0 and end at dimension-1
|
721 |
+
open_lines.append(loopstart % {
|
722 |
+
'var': self._print(i.label),
|
723 |
+
'start': self._print(i.lower),
|
724 |
+
'end': self._print(i.upper + 1)})
|
725 |
+
close_lines.append("}")
|
726 |
+
return open_lines, close_lines
|
727 |
+
|
728 |
+
|
729 |
+
for k in ('Abs Sqrt exp exp2 expm1 log log10 log2 log1p Cbrt hypot fma'
|
730 |
+
' loggamma sin cos tan asin acos atan atan2 sinh cosh tanh asinh acosh '
|
731 |
+
'atanh erf erfc loggamma gamma ceiling floor').split():
|
732 |
+
setattr(C99CodePrinter, '_print_%s' % k, C99CodePrinter._print_math_func)
|
733 |
+
|
734 |
+
|
735 |
+
class C11CodePrinter(C99CodePrinter):
|
736 |
+
|
737 |
+
@requires(headers={'stdalign.h'})
|
738 |
+
def _print_alignof(self, expr):
|
739 |
+
arg, = expr.args
|
740 |
+
return 'alignof(%s)' % self._print(arg)
|
741 |
+
|
742 |
+
|
743 |
+
c_code_printers = {
|
744 |
+
'c89': C89CodePrinter,
|
745 |
+
'c99': C99CodePrinter,
|
746 |
+
'c11': C11CodePrinter
|
747 |
+
}
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/codeprinter.py
ADDED
@@ -0,0 +1,875 @@
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|
|
|
1 |
+
from __future__ import annotations
|
2 |
+
from typing import Any
|
3 |
+
|
4 |
+
from functools import wraps
|
5 |
+
|
6 |
+
from sympy.core import Add, Mul, Pow, S, sympify, Float
|
7 |
+
from sympy.core.basic import Basic
|
8 |
+
from sympy.core.expr import UnevaluatedExpr
|
9 |
+
from sympy.core.function import Lambda
|
10 |
+
from sympy.core.mul import _keep_coeff
|
11 |
+
from sympy.core.sorting import default_sort_key
|
12 |
+
from sympy.core.symbol import Symbol
|
13 |
+
from sympy.functions.elementary.complexes import re
|
14 |
+
from sympy.printing.str import StrPrinter
|
15 |
+
from sympy.printing.precedence import precedence, PRECEDENCE
|
16 |
+
|
17 |
+
|
18 |
+
class requires:
|
19 |
+
""" Decorator for registering requirements on print methods. """
|
20 |
+
def __init__(self, **kwargs):
|
21 |
+
self._req = kwargs
|
22 |
+
|
23 |
+
def __call__(self, method):
|
24 |
+
def _method_wrapper(self_, *args, **kwargs):
|
25 |
+
for k, v in self._req.items():
|
26 |
+
getattr(self_, k).update(v)
|
27 |
+
return method(self_, *args, **kwargs)
|
28 |
+
return wraps(method)(_method_wrapper)
|
29 |
+
|
30 |
+
|
31 |
+
class AssignmentError(Exception):
|
32 |
+
"""
|
33 |
+
Raised if an assignment variable for a loop is missing.
|
34 |
+
"""
|
35 |
+
pass
|
36 |
+
|
37 |
+
|
38 |
+
def _convert_python_lists(arg):
|
39 |
+
if isinstance(arg, list):
|
40 |
+
from sympy.codegen.abstract_nodes import List
|
41 |
+
return List(*(_convert_python_lists(e) for e in arg))
|
42 |
+
elif isinstance(arg, tuple):
|
43 |
+
return tuple(_convert_python_lists(e) for e in arg)
|
44 |
+
else:
|
45 |
+
return arg
|
46 |
+
|
47 |
+
|
48 |
+
class CodePrinter(StrPrinter):
|
49 |
+
"""
|
50 |
+
The base class for code-printing subclasses.
|
51 |
+
"""
|
52 |
+
|
53 |
+
_operators = {
|
54 |
+
'and': '&&',
|
55 |
+
'or': '||',
|
56 |
+
'not': '!',
|
57 |
+
}
|
58 |
+
|
59 |
+
_default_settings: dict[str, Any] = {
|
60 |
+
'order': None,
|
61 |
+
'full_prec': 'auto',
|
62 |
+
'error_on_reserved': False,
|
63 |
+
'reserved_word_suffix': '_',
|
64 |
+
'human': True,
|
65 |
+
'inline': False,
|
66 |
+
'allow_unknown_functions': False,
|
67 |
+
}
|
68 |
+
|
69 |
+
# Functions which are "simple" to rewrite to other functions that
|
70 |
+
# may be supported
|
71 |
+
# function_to_rewrite : (function_to_rewrite_to, iterable_with_other_functions_required)
|
72 |
+
_rewriteable_functions = {
|
73 |
+
'cot': ('tan', []),
|
74 |
+
'csc': ('sin', []),
|
75 |
+
'sec': ('cos', []),
|
76 |
+
'acot': ('atan', []),
|
77 |
+
'acsc': ('asin', []),
|
78 |
+
'asec': ('acos', []),
|
79 |
+
'coth': ('exp', []),
|
80 |
+
'csch': ('exp', []),
|
81 |
+
'sech': ('exp', []),
|
82 |
+
'acoth': ('log', []),
|
83 |
+
'acsch': ('log', []),
|
84 |
+
'asech': ('log', []),
|
85 |
+
'catalan': ('gamma', []),
|
86 |
+
'fibonacci': ('sqrt', []),
|
87 |
+
'lucas': ('sqrt', []),
|
88 |
+
'beta': ('gamma', []),
|
89 |
+
'sinc': ('sin', ['Piecewise']),
|
90 |
+
'Mod': ('floor', []),
|
91 |
+
'factorial': ('gamma', []),
|
92 |
+
'factorial2': ('gamma', ['Piecewise']),
|
93 |
+
'subfactorial': ('uppergamma', []),
|
94 |
+
'RisingFactorial': ('gamma', ['Piecewise']),
|
95 |
+
'FallingFactorial': ('gamma', ['Piecewise']),
|
96 |
+
'binomial': ('gamma', []),
|
97 |
+
'frac': ('floor', []),
|
98 |
+
'Max': ('Piecewise', []),
|
99 |
+
'Min': ('Piecewise', []),
|
100 |
+
'Heaviside': ('Piecewise', []),
|
101 |
+
'erf2': ('erf', []),
|
102 |
+
'erfc': ('erf', []),
|
103 |
+
'Li': ('li', []),
|
104 |
+
'Ei': ('li', []),
|
105 |
+
'dirichlet_eta': ('zeta', []),
|
106 |
+
'riemann_xi': ('zeta', ['gamma']),
|
107 |
+
}
|
108 |
+
|
109 |
+
def __init__(self, settings=None):
|
110 |
+
|
111 |
+
super().__init__(settings=settings)
|
112 |
+
if not hasattr(self, 'reserved_words'):
|
113 |
+
self.reserved_words = set()
|
114 |
+
|
115 |
+
def _handle_UnevaluatedExpr(self, expr):
|
116 |
+
return expr.replace(re, lambda arg: arg if isinstance(
|
117 |
+
arg, UnevaluatedExpr) and arg.args[0].is_real else re(arg))
|
118 |
+
|
119 |
+
def doprint(self, expr, assign_to=None):
|
120 |
+
"""
|
121 |
+
Print the expression as code.
|
122 |
+
|
123 |
+
Parameters
|
124 |
+
----------
|
125 |
+
expr : Expression
|
126 |
+
The expression to be printed.
|
127 |
+
|
128 |
+
assign_to : Symbol, string, MatrixSymbol, list of strings or Symbols (optional)
|
129 |
+
If provided, the printed code will set the expression to a variable or multiple variables
|
130 |
+
with the name or names given in ``assign_to``.
|
131 |
+
"""
|
132 |
+
from sympy.matrices.expressions.matexpr import MatrixSymbol
|
133 |
+
from sympy.codegen.ast import CodeBlock, Assignment
|
134 |
+
|
135 |
+
def _handle_assign_to(expr, assign_to):
|
136 |
+
if assign_to is None:
|
137 |
+
return sympify(expr)
|
138 |
+
if isinstance(assign_to, (list, tuple)):
|
139 |
+
if len(expr) != len(assign_to):
|
140 |
+
raise ValueError('Failed to assign an expression of length {} to {} variables'.format(len(expr), len(assign_to)))
|
141 |
+
return CodeBlock(*[_handle_assign_to(lhs, rhs) for lhs, rhs in zip(expr, assign_to)])
|
142 |
+
if isinstance(assign_to, str):
|
143 |
+
if expr.is_Matrix:
|
144 |
+
assign_to = MatrixSymbol(assign_to, *expr.shape)
|
145 |
+
else:
|
146 |
+
assign_to = Symbol(assign_to)
|
147 |
+
elif not isinstance(assign_to, Basic):
|
148 |
+
raise TypeError("{} cannot assign to object of type {}".format(
|
149 |
+
type(self).__name__, type(assign_to)))
|
150 |
+
return Assignment(assign_to, expr)
|
151 |
+
|
152 |
+
expr = _convert_python_lists(expr)
|
153 |
+
expr = _handle_assign_to(expr, assign_to)
|
154 |
+
|
155 |
+
# Remove re(...) nodes due to UnevaluatedExpr.is_real always is None:
|
156 |
+
expr = self._handle_UnevaluatedExpr(expr)
|
157 |
+
|
158 |
+
# keep a set of expressions that are not strictly translatable to Code
|
159 |
+
# and number constants that must be declared and initialized
|
160 |
+
self._not_supported = set()
|
161 |
+
self._number_symbols = set()
|
162 |
+
|
163 |
+
lines = self._print(expr).splitlines()
|
164 |
+
|
165 |
+
# format the output
|
166 |
+
if self._settings["human"]:
|
167 |
+
frontlines = []
|
168 |
+
if self._not_supported:
|
169 |
+
frontlines.append(self._get_comment(
|
170 |
+
"Not supported in {}:".format(self.language)))
|
171 |
+
for expr in sorted(self._not_supported, key=str):
|
172 |
+
frontlines.append(self._get_comment(type(expr).__name__))
|
173 |
+
for name, value in sorted(self._number_symbols, key=str):
|
174 |
+
frontlines.append(self._declare_number_const(name, value))
|
175 |
+
lines = frontlines + lines
|
176 |
+
lines = self._format_code(lines)
|
177 |
+
result = "\n".join(lines)
|
178 |
+
else:
|
179 |
+
lines = self._format_code(lines)
|
180 |
+
num_syms = {(k, self._print(v)) for k, v in self._number_symbols}
|
181 |
+
result = (num_syms, self._not_supported, "\n".join(lines))
|
182 |
+
self._not_supported = set()
|
183 |
+
self._number_symbols = set()
|
184 |
+
return result
|
185 |
+
|
186 |
+
def _doprint_loops(self, expr, assign_to=None):
|
187 |
+
# Here we print an expression that contains Indexed objects, they
|
188 |
+
# correspond to arrays in the generated code. The low-level implementation
|
189 |
+
# involves looping over array elements and possibly storing results in temporary
|
190 |
+
# variables or accumulate it in the assign_to object.
|
191 |
+
|
192 |
+
if self._settings.get('contract', True):
|
193 |
+
from sympy.tensor import get_contraction_structure
|
194 |
+
# Setup loops over non-dummy indices -- all terms need these
|
195 |
+
indices = self._get_expression_indices(expr, assign_to)
|
196 |
+
# Setup loops over dummy indices -- each term needs separate treatment
|
197 |
+
dummies = get_contraction_structure(expr)
|
198 |
+
else:
|
199 |
+
indices = []
|
200 |
+
dummies = {None: (expr,)}
|
201 |
+
openloop, closeloop = self._get_loop_opening_ending(indices)
|
202 |
+
|
203 |
+
# terms with no summations first
|
204 |
+
if None in dummies:
|
205 |
+
text = StrPrinter.doprint(self, Add(*dummies[None]))
|
206 |
+
else:
|
207 |
+
# If all terms have summations we must initialize array to Zero
|
208 |
+
text = StrPrinter.doprint(self, 0)
|
209 |
+
|
210 |
+
# skip redundant assignments (where lhs == rhs)
|
211 |
+
lhs_printed = self._print(assign_to)
|
212 |
+
lines = []
|
213 |
+
if text != lhs_printed:
|
214 |
+
lines.extend(openloop)
|
215 |
+
if assign_to is not None:
|
216 |
+
text = self._get_statement("%s = %s" % (lhs_printed, text))
|
217 |
+
lines.append(text)
|
218 |
+
lines.extend(closeloop)
|
219 |
+
|
220 |
+
# then terms with summations
|
221 |
+
for d in dummies:
|
222 |
+
if isinstance(d, tuple):
|
223 |
+
indices = self._sort_optimized(d, expr)
|
224 |
+
openloop_d, closeloop_d = self._get_loop_opening_ending(
|
225 |
+
indices)
|
226 |
+
|
227 |
+
for term in dummies[d]:
|
228 |
+
if term in dummies and not ([list(f.keys()) for f in dummies[term]]
|
229 |
+
== [[None] for f in dummies[term]]):
|
230 |
+
# If one factor in the term has it's own internal
|
231 |
+
# contractions, those must be computed first.
|
232 |
+
# (temporary variables?)
|
233 |
+
raise NotImplementedError(
|
234 |
+
"FIXME: no support for contractions in factor yet")
|
235 |
+
else:
|
236 |
+
|
237 |
+
# We need the lhs expression as an accumulator for
|
238 |
+
# the loops, i.e
|
239 |
+
#
|
240 |
+
# for (int d=0; d < dim; d++){
|
241 |
+
# lhs[] = lhs[] + term[][d]
|
242 |
+
# } ^.................. the accumulator
|
243 |
+
#
|
244 |
+
# We check if the expression already contains the
|
245 |
+
# lhs, and raise an exception if it does, as that
|
246 |
+
# syntax is currently undefined. FIXME: What would be
|
247 |
+
# a good interpretation?
|
248 |
+
if assign_to is None:
|
249 |
+
raise AssignmentError(
|
250 |
+
"need assignment variable for loops")
|
251 |
+
if term.has(assign_to):
|
252 |
+
raise ValueError("FIXME: lhs present in rhs,\
|
253 |
+
this is undefined in CodePrinter")
|
254 |
+
|
255 |
+
lines.extend(openloop)
|
256 |
+
lines.extend(openloop_d)
|
257 |
+
text = "%s = %s" % (lhs_printed, StrPrinter.doprint(
|
258 |
+
self, assign_to + term))
|
259 |
+
lines.append(self._get_statement(text))
|
260 |
+
lines.extend(closeloop_d)
|
261 |
+
lines.extend(closeloop)
|
262 |
+
|
263 |
+
return "\n".join(lines)
|
264 |
+
|
265 |
+
def _get_expression_indices(self, expr, assign_to):
|
266 |
+
from sympy.tensor import get_indices
|
267 |
+
rinds, junk = get_indices(expr)
|
268 |
+
linds, junk = get_indices(assign_to)
|
269 |
+
|
270 |
+
# support broadcast of scalar
|
271 |
+
if linds and not rinds:
|
272 |
+
rinds = linds
|
273 |
+
if rinds != linds:
|
274 |
+
raise ValueError("lhs indices must match non-dummy"
|
275 |
+
" rhs indices in %s" % expr)
|
276 |
+
|
277 |
+
return self._sort_optimized(rinds, assign_to)
|
278 |
+
|
279 |
+
def _sort_optimized(self, indices, expr):
|
280 |
+
|
281 |
+
from sympy.tensor.indexed import Indexed
|
282 |
+
|
283 |
+
if not indices:
|
284 |
+
return []
|
285 |
+
|
286 |
+
# determine optimized loop order by giving a score to each index
|
287 |
+
# the index with the highest score are put in the innermost loop.
|
288 |
+
score_table = {}
|
289 |
+
for i in indices:
|
290 |
+
score_table[i] = 0
|
291 |
+
|
292 |
+
arrays = expr.atoms(Indexed)
|
293 |
+
for arr in arrays:
|
294 |
+
for p, ind in enumerate(arr.indices):
|
295 |
+
try:
|
296 |
+
score_table[ind] += self._rate_index_position(p)
|
297 |
+
except KeyError:
|
298 |
+
pass
|
299 |
+
|
300 |
+
return sorted(indices, key=lambda x: score_table[x])
|
301 |
+
|
302 |
+
def _rate_index_position(self, p):
|
303 |
+
"""function to calculate score based on position among indices
|
304 |
+
|
305 |
+
This method is used to sort loops in an optimized order, see
|
306 |
+
CodePrinter._sort_optimized()
|
307 |
+
"""
|
308 |
+
raise NotImplementedError("This function must be implemented by "
|
309 |
+
"subclass of CodePrinter.")
|
310 |
+
|
311 |
+
def _get_statement(self, codestring):
|
312 |
+
"""Formats a codestring with the proper line ending."""
|
313 |
+
raise NotImplementedError("This function must be implemented by "
|
314 |
+
"subclass of CodePrinter.")
|
315 |
+
|
316 |
+
def _get_comment(self, text):
|
317 |
+
"""Formats a text string as a comment."""
|
318 |
+
raise NotImplementedError("This function must be implemented by "
|
319 |
+
"subclass of CodePrinter.")
|
320 |
+
|
321 |
+
def _declare_number_const(self, name, value):
|
322 |
+
"""Declare a numeric constant at the top of a function"""
|
323 |
+
raise NotImplementedError("This function must be implemented by "
|
324 |
+
"subclass of CodePrinter.")
|
325 |
+
|
326 |
+
def _format_code(self, lines):
|
327 |
+
"""Take in a list of lines of code, and format them accordingly.
|
328 |
+
|
329 |
+
This may include indenting, wrapping long lines, etc..."""
|
330 |
+
raise NotImplementedError("This function must be implemented by "
|
331 |
+
"subclass of CodePrinter.")
|
332 |
+
|
333 |
+
def _get_loop_opening_ending(self, indices):
|
334 |
+
"""Returns a tuple (open_lines, close_lines) containing lists
|
335 |
+
of codelines"""
|
336 |
+
raise NotImplementedError("This function must be implemented by "
|
337 |
+
"subclass of CodePrinter.")
|
338 |
+
|
339 |
+
def _print_Dummy(self, expr):
|
340 |
+
if expr.name.startswith('Dummy_'):
|
341 |
+
return '_' + expr.name
|
342 |
+
else:
|
343 |
+
return '%s_%d' % (expr.name, expr.dummy_index)
|
344 |
+
|
345 |
+
def _print_CodeBlock(self, expr):
|
346 |
+
return '\n'.join([self._print(i) for i in expr.args])
|
347 |
+
|
348 |
+
def _print_String(self, string):
|
349 |
+
return str(string)
|
350 |
+
|
351 |
+
def _print_QuotedString(self, arg):
|
352 |
+
return '"%s"' % arg.text
|
353 |
+
|
354 |
+
def _print_Comment(self, string):
|
355 |
+
return self._get_comment(str(string))
|
356 |
+
|
357 |
+
def _print_Assignment(self, expr):
|
358 |
+
from sympy.codegen.ast import Assignment
|
359 |
+
from sympy.functions.elementary.piecewise import Piecewise
|
360 |
+
from sympy.matrices.expressions.matexpr import MatrixSymbol
|
361 |
+
from sympy.tensor.indexed import IndexedBase
|
362 |
+
lhs = expr.lhs
|
363 |
+
rhs = expr.rhs
|
364 |
+
# We special case assignments that take multiple lines
|
365 |
+
if isinstance(expr.rhs, Piecewise):
|
366 |
+
# Here we modify Piecewise so each expression is now
|
367 |
+
# an Assignment, and then continue on the print.
|
368 |
+
expressions = []
|
369 |
+
conditions = []
|
370 |
+
for (e, c) in rhs.args:
|
371 |
+
expressions.append(Assignment(lhs, e))
|
372 |
+
conditions.append(c)
|
373 |
+
temp = Piecewise(*zip(expressions, conditions))
|
374 |
+
return self._print(temp)
|
375 |
+
elif isinstance(lhs, MatrixSymbol):
|
376 |
+
# Here we form an Assignment for each element in the array,
|
377 |
+
# printing each one.
|
378 |
+
lines = []
|
379 |
+
for (i, j) in self._traverse_matrix_indices(lhs):
|
380 |
+
temp = Assignment(lhs[i, j], rhs[i, j])
|
381 |
+
code0 = self._print(temp)
|
382 |
+
lines.append(code0)
|
383 |
+
return "\n".join(lines)
|
384 |
+
elif self._settings.get("contract", False) and (lhs.has(IndexedBase) or
|
385 |
+
rhs.has(IndexedBase)):
|
386 |
+
# Here we check if there is looping to be done, and if so
|
387 |
+
# print the required loops.
|
388 |
+
return self._doprint_loops(rhs, lhs)
|
389 |
+
else:
|
390 |
+
lhs_code = self._print(lhs)
|
391 |
+
rhs_code = self._print(rhs)
|
392 |
+
return self._get_statement("%s = %s" % (lhs_code, rhs_code))
|
393 |
+
|
394 |
+
def _print_AugmentedAssignment(self, expr):
|
395 |
+
lhs_code = self._print(expr.lhs)
|
396 |
+
rhs_code = self._print(expr.rhs)
|
397 |
+
return self._get_statement("{} {} {}".format(
|
398 |
+
*(self._print(arg) for arg in [lhs_code, expr.op, rhs_code])))
|
399 |
+
|
400 |
+
def _print_FunctionCall(self, expr):
|
401 |
+
return '%s(%s)' % (
|
402 |
+
expr.name,
|
403 |
+
', '.join((self._print(arg) for arg in expr.function_args)))
|
404 |
+
|
405 |
+
def _print_Variable(self, expr):
|
406 |
+
return self._print(expr.symbol)
|
407 |
+
|
408 |
+
def _print_Symbol(self, expr):
|
409 |
+
|
410 |
+
name = super()._print_Symbol(expr)
|
411 |
+
|
412 |
+
if name in self.reserved_words:
|
413 |
+
if self._settings['error_on_reserved']:
|
414 |
+
msg = ('This expression includes the symbol "{}" which is a '
|
415 |
+
'reserved keyword in this language.')
|
416 |
+
raise ValueError(msg.format(name))
|
417 |
+
return name + self._settings['reserved_word_suffix']
|
418 |
+
else:
|
419 |
+
return name
|
420 |
+
|
421 |
+
def _can_print(self, name):
|
422 |
+
""" Check if function ``name`` is either a known function or has its own
|
423 |
+
printing method. Used to check if rewriting is possible."""
|
424 |
+
return name in self.known_functions or getattr(self, '_print_{}'.format(name), False)
|
425 |
+
|
426 |
+
def _print_Function(self, expr):
|
427 |
+
if expr.func.__name__ in self.known_functions:
|
428 |
+
cond_func = self.known_functions[expr.func.__name__]
|
429 |
+
if isinstance(cond_func, str):
|
430 |
+
return "%s(%s)" % (cond_func, self.stringify(expr.args, ", "))
|
431 |
+
else:
|
432 |
+
for cond, func in cond_func:
|
433 |
+
if cond(*expr.args):
|
434 |
+
break
|
435 |
+
if func is not None:
|
436 |
+
try:
|
437 |
+
return func(*[self.parenthesize(item, 0) for item in expr.args])
|
438 |
+
except TypeError:
|
439 |
+
return "%s(%s)" % (func, self.stringify(expr.args, ", "))
|
440 |
+
elif hasattr(expr, '_imp_') and isinstance(expr._imp_, Lambda):
|
441 |
+
# inlined function
|
442 |
+
return self._print(expr._imp_(*expr.args))
|
443 |
+
elif expr.func.__name__ in self._rewriteable_functions:
|
444 |
+
# Simple rewrite to supported function possible
|
445 |
+
target_f, required_fs = self._rewriteable_functions[expr.func.__name__]
|
446 |
+
if self._can_print(target_f) and all(self._can_print(f) for f in required_fs):
|
447 |
+
return self._print(expr.rewrite(target_f))
|
448 |
+
if expr.is_Function and self._settings.get('allow_unknown_functions', False):
|
449 |
+
return '%s(%s)' % (self._print(expr.func), ', '.join(map(self._print, expr.args)))
|
450 |
+
else:
|
451 |
+
return self._print_not_supported(expr)
|
452 |
+
|
453 |
+
_print_Expr = _print_Function
|
454 |
+
|
455 |
+
# Don't inherit the str-printer method for Heaviside to the code printers
|
456 |
+
_print_Heaviside = None
|
457 |
+
|
458 |
+
def _print_NumberSymbol(self, expr):
|
459 |
+
if self._settings.get("inline", False):
|
460 |
+
return self._print(Float(expr.evalf(self._settings["precision"])))
|
461 |
+
else:
|
462 |
+
# A Number symbol that is not implemented here or with _printmethod
|
463 |
+
# is registered and evaluated
|
464 |
+
self._number_symbols.add((expr,
|
465 |
+
Float(expr.evalf(self._settings["precision"]))))
|
466 |
+
return str(expr)
|
467 |
+
|
468 |
+
def _print_Catalan(self, expr):
|
469 |
+
return self._print_NumberSymbol(expr)
|
470 |
+
def _print_EulerGamma(self, expr):
|
471 |
+
return self._print_NumberSymbol(expr)
|
472 |
+
def _print_GoldenRatio(self, expr):
|
473 |
+
return self._print_NumberSymbol(expr)
|
474 |
+
def _print_TribonacciConstant(self, expr):
|
475 |
+
return self._print_NumberSymbol(expr)
|
476 |
+
def _print_Exp1(self, expr):
|
477 |
+
return self._print_NumberSymbol(expr)
|
478 |
+
def _print_Pi(self, expr):
|
479 |
+
return self._print_NumberSymbol(expr)
|
480 |
+
|
481 |
+
def _print_And(self, expr):
|
482 |
+
PREC = precedence(expr)
|
483 |
+
return (" %s " % self._operators['and']).join(self.parenthesize(a, PREC)
|
484 |
+
for a in sorted(expr.args, key=default_sort_key))
|
485 |
+
|
486 |
+
def _print_Or(self, expr):
|
487 |
+
PREC = precedence(expr)
|
488 |
+
return (" %s " % self._operators['or']).join(self.parenthesize(a, PREC)
|
489 |
+
for a in sorted(expr.args, key=default_sort_key))
|
490 |
+
|
491 |
+
def _print_Xor(self, expr):
|
492 |
+
if self._operators.get('xor') is None:
|
493 |
+
return self._print(expr.to_nnf())
|
494 |
+
PREC = precedence(expr)
|
495 |
+
return (" %s " % self._operators['xor']).join(self.parenthesize(a, PREC)
|
496 |
+
for a in expr.args)
|
497 |
+
|
498 |
+
def _print_Equivalent(self, expr):
|
499 |
+
if self._operators.get('equivalent') is None:
|
500 |
+
return self._print(expr.to_nnf())
|
501 |
+
PREC = precedence(expr)
|
502 |
+
return (" %s " % self._operators['equivalent']).join(self.parenthesize(a, PREC)
|
503 |
+
for a in expr.args)
|
504 |
+
|
505 |
+
def _print_Not(self, expr):
|
506 |
+
PREC = precedence(expr)
|
507 |
+
return self._operators['not'] + self.parenthesize(expr.args[0], PREC)
|
508 |
+
|
509 |
+
def _print_BooleanFunction(self, expr):
|
510 |
+
return self._print(expr.to_nnf())
|
511 |
+
|
512 |
+
def _print_Mul(self, expr):
|
513 |
+
|
514 |
+
prec = precedence(expr)
|
515 |
+
|
516 |
+
c, e = expr.as_coeff_Mul()
|
517 |
+
if c < 0:
|
518 |
+
expr = _keep_coeff(-c, e)
|
519 |
+
sign = "-"
|
520 |
+
else:
|
521 |
+
sign = ""
|
522 |
+
|
523 |
+
a = [] # items in the numerator
|
524 |
+
b = [] # items that are in the denominator (if any)
|
525 |
+
|
526 |
+
pow_paren = [] # Will collect all pow with more than one base element and exp = -1
|
527 |
+
|
528 |
+
if self.order not in ('old', 'none'):
|
529 |
+
args = expr.as_ordered_factors()
|
530 |
+
else:
|
531 |
+
# use make_args in case expr was something like -x -> x
|
532 |
+
args = Mul.make_args(expr)
|
533 |
+
|
534 |
+
# Gather args for numerator/denominator
|
535 |
+
for item in args:
|
536 |
+
if item.is_commutative and item.is_Pow and item.exp.is_Rational and item.exp.is_negative:
|
537 |
+
if item.exp != -1:
|
538 |
+
b.append(Pow(item.base, -item.exp, evaluate=False))
|
539 |
+
else:
|
540 |
+
if len(item.args[0].args) != 1 and isinstance(item.base, Mul): # To avoid situations like #14160
|
541 |
+
pow_paren.append(item)
|
542 |
+
b.append(Pow(item.base, -item.exp))
|
543 |
+
else:
|
544 |
+
a.append(item)
|
545 |
+
|
546 |
+
a = a or [S.One]
|
547 |
+
|
548 |
+
if len(a) == 1 and sign == "-":
|
549 |
+
# Unary minus does not have a SymPy class, and hence there's no
|
550 |
+
# precedence weight associated with it, Python's unary minus has
|
551 |
+
# an operator precedence between multiplication and exponentiation,
|
552 |
+
# so we use this to compute a weight.
|
553 |
+
a_str = [self.parenthesize(a[0], 0.5*(PRECEDENCE["Pow"]+PRECEDENCE["Mul"]))]
|
554 |
+
else:
|
555 |
+
a_str = [self.parenthesize(x, prec) for x in a]
|
556 |
+
b_str = [self.parenthesize(x, prec) for x in b]
|
557 |
+
|
558 |
+
# To parenthesize Pow with exp = -1 and having more than one Symbol
|
559 |
+
for item in pow_paren:
|
560 |
+
if item.base in b:
|
561 |
+
b_str[b.index(item.base)] = "(%s)" % b_str[b.index(item.base)]
|
562 |
+
|
563 |
+
if not b:
|
564 |
+
return sign + '*'.join(a_str)
|
565 |
+
elif len(b) == 1:
|
566 |
+
return sign + '*'.join(a_str) + "/" + b_str[0]
|
567 |
+
else:
|
568 |
+
return sign + '*'.join(a_str) + "/(%s)" % '*'.join(b_str)
|
569 |
+
|
570 |
+
def _print_not_supported(self, expr):
|
571 |
+
try:
|
572 |
+
self._not_supported.add(expr)
|
573 |
+
except TypeError:
|
574 |
+
# not hashable
|
575 |
+
pass
|
576 |
+
return self.emptyPrinter(expr)
|
577 |
+
|
578 |
+
# The following can not be simply translated into C or Fortran
|
579 |
+
_print_Basic = _print_not_supported
|
580 |
+
_print_ComplexInfinity = _print_not_supported
|
581 |
+
_print_Derivative = _print_not_supported
|
582 |
+
_print_ExprCondPair = _print_not_supported
|
583 |
+
_print_GeometryEntity = _print_not_supported
|
584 |
+
_print_Infinity = _print_not_supported
|
585 |
+
_print_Integral = _print_not_supported
|
586 |
+
_print_Interval = _print_not_supported
|
587 |
+
_print_AccumulationBounds = _print_not_supported
|
588 |
+
_print_Limit = _print_not_supported
|
589 |
+
_print_MatrixBase = _print_not_supported
|
590 |
+
_print_DeferredVector = _print_not_supported
|
591 |
+
_print_NaN = _print_not_supported
|
592 |
+
_print_NegativeInfinity = _print_not_supported
|
593 |
+
_print_Order = _print_not_supported
|
594 |
+
_print_RootOf = _print_not_supported
|
595 |
+
_print_RootsOf = _print_not_supported
|
596 |
+
_print_RootSum = _print_not_supported
|
597 |
+
_print_Uniform = _print_not_supported
|
598 |
+
_print_Unit = _print_not_supported
|
599 |
+
_print_Wild = _print_not_supported
|
600 |
+
_print_WildFunction = _print_not_supported
|
601 |
+
_print_Relational = _print_not_supported
|
602 |
+
|
603 |
+
|
604 |
+
# Code printer functions. These are included in this file so that they can be
|
605 |
+
# imported in the top-level __init__.py without importing the sympy.codegen
|
606 |
+
# module.
|
607 |
+
|
608 |
+
def ccode(expr, assign_to=None, standard='c99', **settings):
|
609 |
+
"""Converts an expr to a string of c code
|
610 |
+
|
611 |
+
Parameters
|
612 |
+
==========
|
613 |
+
|
614 |
+
expr : Expr
|
615 |
+
A SymPy expression to be converted.
|
616 |
+
assign_to : optional
|
617 |
+
When given, the argument is used as the name of the variable to which
|
618 |
+
the expression is assigned. Can be a string, ``Symbol``,
|
619 |
+
``MatrixSymbol``, or ``Indexed`` type. This is helpful in case of
|
620 |
+
line-wrapping, or for expressions that generate multi-line statements.
|
621 |
+
standard : str, optional
|
622 |
+
String specifying the standard. If your compiler supports a more modern
|
623 |
+
standard you may set this to 'c99' to allow the printer to use more math
|
624 |
+
functions. [default='c89'].
|
625 |
+
precision : integer, optional
|
626 |
+
The precision for numbers such as pi [default=17].
|
627 |
+
user_functions : dict, optional
|
628 |
+
A dictionary where the keys are string representations of either
|
629 |
+
``FunctionClass`` or ``UndefinedFunction`` instances and the values
|
630 |
+
are their desired C string representations. Alternatively, the
|
631 |
+
dictionary value can be a list of tuples i.e. [(argument_test,
|
632 |
+
cfunction_string)] or [(argument_test, cfunction_formater)]. See below
|
633 |
+
for examples.
|
634 |
+
dereference : iterable, optional
|
635 |
+
An iterable of symbols that should be dereferenced in the printed code
|
636 |
+
expression. These would be values passed by address to the function.
|
637 |
+
For example, if ``dereference=[a]``, the resulting code would print
|
638 |
+
``(*a)`` instead of ``a``.
|
639 |
+
human : bool, optional
|
640 |
+
If True, the result is a single string that may contain some constant
|
641 |
+
declarations for the number symbols. If False, the same information is
|
642 |
+
returned in a tuple of (symbols_to_declare, not_supported_functions,
|
643 |
+
code_text). [default=True].
|
644 |
+
contract: bool, optional
|
645 |
+
If True, ``Indexed`` instances are assumed to obey tensor contraction
|
646 |
+
rules and the corresponding nested loops over indices are generated.
|
647 |
+
Setting contract=False will not generate loops, instead the user is
|
648 |
+
responsible to provide values for the indices in the code.
|
649 |
+
[default=True].
|
650 |
+
|
651 |
+
Examples
|
652 |
+
========
|
653 |
+
|
654 |
+
>>> from sympy import ccode, symbols, Rational, sin, ceiling, Abs, Function
|
655 |
+
>>> x, tau = symbols("x, tau")
|
656 |
+
>>> expr = (2*tau)**Rational(7, 2)
|
657 |
+
>>> ccode(expr)
|
658 |
+
'8*M_SQRT2*pow(tau, 7.0/2.0)'
|
659 |
+
>>> ccode(expr, math_macros={})
|
660 |
+
'8*sqrt(2)*pow(tau, 7.0/2.0)'
|
661 |
+
>>> ccode(sin(x), assign_to="s")
|
662 |
+
's = sin(x);'
|
663 |
+
>>> from sympy.codegen.ast import real, float80
|
664 |
+
>>> ccode(expr, type_aliases={real: float80})
|
665 |
+
'8*M_SQRT2l*powl(tau, 7.0L/2.0L)'
|
666 |
+
|
667 |
+
Simple custom printing can be defined for certain types by passing a
|
668 |
+
dictionary of {"type" : "function"} to the ``user_functions`` kwarg.
|
669 |
+
Alternatively, the dictionary value can be a list of tuples i.e.
|
670 |
+
[(argument_test, cfunction_string)].
|
671 |
+
|
672 |
+
>>> custom_functions = {
|
673 |
+
... "ceiling": "CEIL",
|
674 |
+
... "Abs": [(lambda x: not x.is_integer, "fabs"),
|
675 |
+
... (lambda x: x.is_integer, "ABS")],
|
676 |
+
... "func": "f"
|
677 |
+
... }
|
678 |
+
>>> func = Function('func')
|
679 |
+
>>> ccode(func(Abs(x) + ceiling(x)), standard='C89', user_functions=custom_functions)
|
680 |
+
'f(fabs(x) + CEIL(x))'
|
681 |
+
|
682 |
+
or if the C-function takes a subset of the original arguments:
|
683 |
+
|
684 |
+
>>> ccode(2**x + 3**x, standard='C99', user_functions={'Pow': [
|
685 |
+
... (lambda b, e: b == 2, lambda b, e: 'exp2(%s)' % e),
|
686 |
+
... (lambda b, e: b != 2, 'pow')]})
|
687 |
+
'exp2(x) + pow(3, x)'
|
688 |
+
|
689 |
+
``Piecewise`` expressions are converted into conditionals. If an
|
690 |
+
``assign_to`` variable is provided an if statement is created, otherwise
|
691 |
+
the ternary operator is used. Note that if the ``Piecewise`` lacks a
|
692 |
+
default term, represented by ``(expr, True)`` then an error will be thrown.
|
693 |
+
This is to prevent generating an expression that may not evaluate to
|
694 |
+
anything.
|
695 |
+
|
696 |
+
>>> from sympy import Piecewise
|
697 |
+
>>> expr = Piecewise((x + 1, x > 0), (x, True))
|
698 |
+
>>> print(ccode(expr, tau, standard='C89'))
|
699 |
+
if (x > 0) {
|
700 |
+
tau = x + 1;
|
701 |
+
}
|
702 |
+
else {
|
703 |
+
tau = x;
|
704 |
+
}
|
705 |
+
|
706 |
+
Support for loops is provided through ``Indexed`` types. With
|
707 |
+
``contract=True`` these expressions will be turned into loops, whereas
|
708 |
+
``contract=False`` will just print the assignment expression that should be
|
709 |
+
looped over:
|
710 |
+
|
711 |
+
>>> from sympy import Eq, IndexedBase, Idx
|
712 |
+
>>> len_y = 5
|
713 |
+
>>> y = IndexedBase('y', shape=(len_y,))
|
714 |
+
>>> t = IndexedBase('t', shape=(len_y,))
|
715 |
+
>>> Dy = IndexedBase('Dy', shape=(len_y-1,))
|
716 |
+
>>> i = Idx('i', len_y-1)
|
717 |
+
>>> e=Eq(Dy[i], (y[i+1]-y[i])/(t[i+1]-t[i]))
|
718 |
+
>>> ccode(e.rhs, assign_to=e.lhs, contract=False, standard='C89')
|
719 |
+
'Dy[i] = (y[i + 1] - y[i])/(t[i + 1] - t[i]);'
|
720 |
+
|
721 |
+
Matrices are also supported, but a ``MatrixSymbol`` of the same dimensions
|
722 |
+
must be provided to ``assign_to``. Note that any expression that can be
|
723 |
+
generated normally can also exist inside a Matrix:
|
724 |
+
|
725 |
+
>>> from sympy import Matrix, MatrixSymbol
|
726 |
+
>>> mat = Matrix([x**2, Piecewise((x + 1, x > 0), (x, True)), sin(x)])
|
727 |
+
>>> A = MatrixSymbol('A', 3, 1)
|
728 |
+
>>> print(ccode(mat, A, standard='C89'))
|
729 |
+
A[0] = pow(x, 2);
|
730 |
+
if (x > 0) {
|
731 |
+
A[1] = x + 1;
|
732 |
+
}
|
733 |
+
else {
|
734 |
+
A[1] = x;
|
735 |
+
}
|
736 |
+
A[2] = sin(x);
|
737 |
+
"""
|
738 |
+
from sympy.printing.c import c_code_printers
|
739 |
+
return c_code_printers[standard.lower()](settings).doprint(expr, assign_to)
|
740 |
+
|
741 |
+
def print_ccode(expr, **settings):
|
742 |
+
"""Prints C representation of the given expression."""
|
743 |
+
print(ccode(expr, **settings))
|
744 |
+
|
745 |
+
def fcode(expr, assign_to=None, **settings):
|
746 |
+
"""Converts an expr to a string of fortran code
|
747 |
+
|
748 |
+
Parameters
|
749 |
+
==========
|
750 |
+
|
751 |
+
expr : Expr
|
752 |
+
A SymPy expression to be converted.
|
753 |
+
assign_to : optional
|
754 |
+
When given, the argument is used as the name of the variable to which
|
755 |
+
the expression is assigned. Can be a string, ``Symbol``,
|
756 |
+
``MatrixSymbol``, or ``Indexed`` type. This is helpful in case of
|
757 |
+
line-wrapping, or for expressions that generate multi-line statements.
|
758 |
+
precision : integer, optional
|
759 |
+
DEPRECATED. Use type_mappings instead. The precision for numbers such
|
760 |
+
as pi [default=17].
|
761 |
+
user_functions : dict, optional
|
762 |
+
A dictionary where keys are ``FunctionClass`` instances and values are
|
763 |
+
their string representations. Alternatively, the dictionary value can
|
764 |
+
be a list of tuples i.e. [(argument_test, cfunction_string)]. See below
|
765 |
+
for examples.
|
766 |
+
human : bool, optional
|
767 |
+
If True, the result is a single string that may contain some constant
|
768 |
+
declarations for the number symbols. If False, the same information is
|
769 |
+
returned in a tuple of (symbols_to_declare, not_supported_functions,
|
770 |
+
code_text). [default=True].
|
771 |
+
contract: bool, optional
|
772 |
+
If True, ``Indexed`` instances are assumed to obey tensor contraction
|
773 |
+
rules and the corresponding nested loops over indices are generated.
|
774 |
+
Setting contract=False will not generate loops, instead the user is
|
775 |
+
responsible to provide values for the indices in the code.
|
776 |
+
[default=True].
|
777 |
+
source_format : optional
|
778 |
+
The source format can be either 'fixed' or 'free'. [default='fixed']
|
779 |
+
standard : integer, optional
|
780 |
+
The Fortran standard to be followed. This is specified as an integer.
|
781 |
+
Acceptable standards are 66, 77, 90, 95, 2003, and 2008. Default is 77.
|
782 |
+
Note that currently the only distinction internally is between
|
783 |
+
standards before 95, and those 95 and after. This may change later as
|
784 |
+
more features are added.
|
785 |
+
name_mangling : bool, optional
|
786 |
+
If True, then the variables that would become identical in
|
787 |
+
case-insensitive Fortran are mangled by appending different number
|
788 |
+
of ``_`` at the end. If False, SymPy Will not interfere with naming of
|
789 |
+
variables. [default=True]
|
790 |
+
|
791 |
+
Examples
|
792 |
+
========
|
793 |
+
|
794 |
+
>>> from sympy import fcode, symbols, Rational, sin, ceiling, floor
|
795 |
+
>>> x, tau = symbols("x, tau")
|
796 |
+
>>> fcode((2*tau)**Rational(7, 2))
|
797 |
+
' 8*sqrt(2.0d0)*tau**(7.0d0/2.0d0)'
|
798 |
+
>>> fcode(sin(x), assign_to="s")
|
799 |
+
' s = sin(x)'
|
800 |
+
|
801 |
+
Custom printing can be defined for certain types by passing a dictionary of
|
802 |
+
"type" : "function" to the ``user_functions`` kwarg. Alternatively, the
|
803 |
+
dictionary value can be a list of tuples i.e. [(argument_test,
|
804 |
+
cfunction_string)].
|
805 |
+
|
806 |
+
>>> custom_functions = {
|
807 |
+
... "ceiling": "CEIL",
|
808 |
+
... "floor": [(lambda x: not x.is_integer, "FLOOR1"),
|
809 |
+
... (lambda x: x.is_integer, "FLOOR2")]
|
810 |
+
... }
|
811 |
+
>>> fcode(floor(x) + ceiling(x), user_functions=custom_functions)
|
812 |
+
' CEIL(x) + FLOOR1(x)'
|
813 |
+
|
814 |
+
``Piecewise`` expressions are converted into conditionals. If an
|
815 |
+
``assign_to`` variable is provided an if statement is created, otherwise
|
816 |
+
the ternary operator is used. Note that if the ``Piecewise`` lacks a
|
817 |
+
default term, represented by ``(expr, True)`` then an error will be thrown.
|
818 |
+
This is to prevent generating an expression that may not evaluate to
|
819 |
+
anything.
|
820 |
+
|
821 |
+
>>> from sympy import Piecewise
|
822 |
+
>>> expr = Piecewise((x + 1, x > 0), (x, True))
|
823 |
+
>>> print(fcode(expr, tau))
|
824 |
+
if (x > 0) then
|
825 |
+
tau = x + 1
|
826 |
+
else
|
827 |
+
tau = x
|
828 |
+
end if
|
829 |
+
|
830 |
+
Support for loops is provided through ``Indexed`` types. With
|
831 |
+
``contract=True`` these expressions will be turned into loops, whereas
|
832 |
+
``contract=False`` will just print the assignment expression that should be
|
833 |
+
looped over:
|
834 |
+
|
835 |
+
>>> from sympy import Eq, IndexedBase, Idx
|
836 |
+
>>> len_y = 5
|
837 |
+
>>> y = IndexedBase('y', shape=(len_y,))
|
838 |
+
>>> t = IndexedBase('t', shape=(len_y,))
|
839 |
+
>>> Dy = IndexedBase('Dy', shape=(len_y-1,))
|
840 |
+
>>> i = Idx('i', len_y-1)
|
841 |
+
>>> e=Eq(Dy[i], (y[i+1]-y[i])/(t[i+1]-t[i]))
|
842 |
+
>>> fcode(e.rhs, assign_to=e.lhs, contract=False)
|
843 |
+
' Dy(i) = (y(i + 1) - y(i))/(t(i + 1) - t(i))'
|
844 |
+
|
845 |
+
Matrices are also supported, but a ``MatrixSymbol`` of the same dimensions
|
846 |
+
must be provided to ``assign_to``. Note that any expression that can be
|
847 |
+
generated normally can also exist inside a Matrix:
|
848 |
+
|
849 |
+
>>> from sympy import Matrix, MatrixSymbol
|
850 |
+
>>> mat = Matrix([x**2, Piecewise((x + 1, x > 0), (x, True)), sin(x)])
|
851 |
+
>>> A = MatrixSymbol('A', 3, 1)
|
852 |
+
>>> print(fcode(mat, A))
|
853 |
+
A(1, 1) = x**2
|
854 |
+
if (x > 0) then
|
855 |
+
A(2, 1) = x + 1
|
856 |
+
else
|
857 |
+
A(2, 1) = x
|
858 |
+
end if
|
859 |
+
A(3, 1) = sin(x)
|
860 |
+
"""
|
861 |
+
from sympy.printing.fortran import FCodePrinter
|
862 |
+
return FCodePrinter(settings).doprint(expr, assign_to)
|
863 |
+
|
864 |
+
|
865 |
+
def print_fcode(expr, **settings):
|
866 |
+
"""Prints the Fortran representation of the given expression.
|
867 |
+
|
868 |
+
See fcode for the meaning of the optional arguments.
|
869 |
+
"""
|
870 |
+
print(fcode(expr, **settings))
|
871 |
+
|
872 |
+
def cxxcode(expr, assign_to=None, standard='c++11', **settings):
|
873 |
+
""" C++ equivalent of :func:`~.ccode`. """
|
874 |
+
from sympy.printing.cxx import cxx_code_printers
|
875 |
+
return cxx_code_printers[standard.lower()](settings).doprint(expr, assign_to)
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/conventions.py
ADDED
@@ -0,0 +1,88 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
"""
|
2 |
+
A few practical conventions common to all printers.
|
3 |
+
"""
|
4 |
+
|
5 |
+
import re
|
6 |
+
|
7 |
+
from collections.abc import Iterable
|
8 |
+
from sympy.core.function import Derivative
|
9 |
+
|
10 |
+
_name_with_digits_p = re.compile(r'^([^\W\d_]+)(\d+)$', re.U)
|
11 |
+
|
12 |
+
|
13 |
+
def split_super_sub(text):
|
14 |
+
"""Split a symbol name into a name, superscripts and subscripts
|
15 |
+
|
16 |
+
The first part of the symbol name is considered to be its actual
|
17 |
+
'name', followed by super- and subscripts. Each superscript is
|
18 |
+
preceded with a "^" character or by "__". Each subscript is preceded
|
19 |
+
by a "_" character. The three return values are the actual name, a
|
20 |
+
list with superscripts and a list with subscripts.
|
21 |
+
|
22 |
+
Examples
|
23 |
+
========
|
24 |
+
|
25 |
+
>>> from sympy.printing.conventions import split_super_sub
|
26 |
+
>>> split_super_sub('a_x^1')
|
27 |
+
('a', ['1'], ['x'])
|
28 |
+
>>> split_super_sub('var_sub1__sup_sub2')
|
29 |
+
('var', ['sup'], ['sub1', 'sub2'])
|
30 |
+
|
31 |
+
"""
|
32 |
+
if not text:
|
33 |
+
return text, [], []
|
34 |
+
|
35 |
+
pos = 0
|
36 |
+
name = None
|
37 |
+
supers = []
|
38 |
+
subs = []
|
39 |
+
while pos < len(text):
|
40 |
+
start = pos + 1
|
41 |
+
if text[pos:pos + 2] == "__":
|
42 |
+
start += 1
|
43 |
+
pos_hat = text.find("^", start)
|
44 |
+
if pos_hat < 0:
|
45 |
+
pos_hat = len(text)
|
46 |
+
pos_usc = text.find("_", start)
|
47 |
+
if pos_usc < 0:
|
48 |
+
pos_usc = len(text)
|
49 |
+
pos_next = min(pos_hat, pos_usc)
|
50 |
+
part = text[pos:pos_next]
|
51 |
+
pos = pos_next
|
52 |
+
if name is None:
|
53 |
+
name = part
|
54 |
+
elif part.startswith("^"):
|
55 |
+
supers.append(part[1:])
|
56 |
+
elif part.startswith("__"):
|
57 |
+
supers.append(part[2:])
|
58 |
+
elif part.startswith("_"):
|
59 |
+
subs.append(part[1:])
|
60 |
+
else:
|
61 |
+
raise RuntimeError("This should never happen.")
|
62 |
+
|
63 |
+
# Make a little exception when a name ends with digits, i.e. treat them
|
64 |
+
# as a subscript too.
|
65 |
+
m = _name_with_digits_p.match(name)
|
66 |
+
if m:
|
67 |
+
name, sub = m.groups()
|
68 |
+
subs.insert(0, sub)
|
69 |
+
|
70 |
+
return name, supers, subs
|
71 |
+
|
72 |
+
|
73 |
+
def requires_partial(expr):
|
74 |
+
"""Return whether a partial derivative symbol is required for printing
|
75 |
+
|
76 |
+
This requires checking how many free variables there are,
|
77 |
+
filtering out the ones that are integers. Some expressions do not have
|
78 |
+
free variables. In that case, check its variable list explicitly to
|
79 |
+
get the context of the expression.
|
80 |
+
"""
|
81 |
+
|
82 |
+
if isinstance(expr, Derivative):
|
83 |
+
return requires_partial(expr.expr)
|
84 |
+
|
85 |
+
if not isinstance(expr.free_symbols, Iterable):
|
86 |
+
return len(set(expr.variables)) > 1
|
87 |
+
|
88 |
+
return sum(not s.is_integer for s in expr.free_symbols) > 1
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/cxx.py
ADDED
@@ -0,0 +1,169 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
"""
|
2 |
+
C++ code printer
|
3 |
+
"""
|
4 |
+
|
5 |
+
from itertools import chain
|
6 |
+
from sympy.codegen.ast import Type, none
|
7 |
+
from .c import C89CodePrinter, C99CodePrinter
|
8 |
+
|
9 |
+
# These are defined in the other file so we can avoid importing sympy.codegen
|
10 |
+
# from the top-level 'import sympy'. Export them here as well.
|
11 |
+
from sympy.printing.codeprinter import cxxcode # noqa:F401
|
12 |
+
|
13 |
+
# from https://en.cppreference.com/w/cpp/keyword
|
14 |
+
reserved = {
|
15 |
+
'C++98': [
|
16 |
+
'and', 'and_eq', 'asm', 'auto', 'bitand', 'bitor', 'bool', 'break',
|
17 |
+
'case', 'catch,', 'char', 'class', 'compl', 'const', 'const_cast',
|
18 |
+
'continue', 'default', 'delete', 'do', 'double', 'dynamic_cast',
|
19 |
+
'else', 'enum', 'explicit', 'export', 'extern', 'false', 'float',
|
20 |
+
'for', 'friend', 'goto', 'if', 'inline', 'int', 'long', 'mutable',
|
21 |
+
'namespace', 'new', 'not', 'not_eq', 'operator', 'or', 'or_eq',
|
22 |
+
'private', 'protected', 'public', 'register', 'reinterpret_cast',
|
23 |
+
'return', 'short', 'signed', 'sizeof', 'static', 'static_cast',
|
24 |
+
'struct', 'switch', 'template', 'this', 'throw', 'true', 'try',
|
25 |
+
'typedef', 'typeid', 'typename', 'union', 'unsigned', 'using',
|
26 |
+
'virtual', 'void', 'volatile', 'wchar_t', 'while', 'xor', 'xor_eq'
|
27 |
+
]
|
28 |
+
}
|
29 |
+
|
30 |
+
reserved['C++11'] = reserved['C++98'][:] + [
|
31 |
+
'alignas', 'alignof', 'char16_t', 'char32_t', 'constexpr', 'decltype',
|
32 |
+
'noexcept', 'nullptr', 'static_assert', 'thread_local'
|
33 |
+
]
|
34 |
+
reserved['C++17'] = reserved['C++11'][:]
|
35 |
+
reserved['C++17'].remove('register')
|
36 |
+
# TM TS: atomic_cancel, atomic_commit, atomic_noexcept, synchronized
|
37 |
+
# concepts TS: concept, requires
|
38 |
+
# module TS: import, module
|
39 |
+
|
40 |
+
|
41 |
+
_math_functions = {
|
42 |
+
'C++98': {
|
43 |
+
'Mod': 'fmod',
|
44 |
+
'ceiling': 'ceil',
|
45 |
+
},
|
46 |
+
'C++11': {
|
47 |
+
'gamma': 'tgamma',
|
48 |
+
},
|
49 |
+
'C++17': {
|
50 |
+
'beta': 'beta',
|
51 |
+
'Ei': 'expint',
|
52 |
+
'zeta': 'riemann_zeta',
|
53 |
+
}
|
54 |
+
}
|
55 |
+
|
56 |
+
# from https://en.cppreference.com/w/cpp/header/cmath
|
57 |
+
for k in ('Abs', 'exp', 'log', 'log10', 'sqrt', 'sin', 'cos', 'tan', # 'Pow'
|
58 |
+
'asin', 'acos', 'atan', 'atan2', 'sinh', 'cosh', 'tanh', 'floor'):
|
59 |
+
_math_functions['C++98'][k] = k.lower()
|
60 |
+
|
61 |
+
|
62 |
+
for k in ('asinh', 'acosh', 'atanh', 'erf', 'erfc'):
|
63 |
+
_math_functions['C++11'][k] = k.lower()
|
64 |
+
|
65 |
+
|
66 |
+
def _attach_print_method(cls, sympy_name, func_name):
|
67 |
+
meth_name = '_print_%s' % sympy_name
|
68 |
+
if hasattr(cls, meth_name):
|
69 |
+
raise ValueError("Edit method (or subclass) instead of overwriting.")
|
70 |
+
def _print_method(self, expr):
|
71 |
+
return '{}{}({})'.format(self._ns, func_name, ', '.join(map(self._print, expr.args)))
|
72 |
+
_print_method.__doc__ = "Prints code for %s" % k
|
73 |
+
setattr(cls, meth_name, _print_method)
|
74 |
+
|
75 |
+
|
76 |
+
def _attach_print_methods(cls, cont):
|
77 |
+
for sympy_name, cxx_name in cont[cls.standard].items():
|
78 |
+
_attach_print_method(cls, sympy_name, cxx_name)
|
79 |
+
|
80 |
+
|
81 |
+
class _CXXCodePrinterBase:
|
82 |
+
printmethod = "_cxxcode"
|
83 |
+
language = 'C++'
|
84 |
+
_ns = 'std::' # namespace
|
85 |
+
|
86 |
+
def __init__(self, settings=None):
|
87 |
+
super().__init__(settings or {})
|
88 |
+
|
89 |
+
def _print_Max(self, expr):
|
90 |
+
from sympy.functions.elementary.miscellaneous import Max
|
91 |
+
if len(expr.args) == 1:
|
92 |
+
return self._print(expr.args[0])
|
93 |
+
return "%smax(%s, %s)" % (self._ns, self._print(expr.args[0]),
|
94 |
+
self._print(Max(*expr.args[1:])))
|
95 |
+
|
96 |
+
def _print_Min(self, expr):
|
97 |
+
from sympy.functions.elementary.miscellaneous import Min
|
98 |
+
if len(expr.args) == 1:
|
99 |
+
return self._print(expr.args[0])
|
100 |
+
return "%smin(%s, %s)" % (self._ns, self._print(expr.args[0]),
|
101 |
+
self._print(Min(*expr.args[1:])))
|
102 |
+
|
103 |
+
def _print_using(self, expr):
|
104 |
+
if expr.alias == none:
|
105 |
+
return 'using %s' % expr.type
|
106 |
+
else:
|
107 |
+
raise ValueError("C++98 does not support type aliases")
|
108 |
+
|
109 |
+
|
110 |
+
class CXX98CodePrinter(_CXXCodePrinterBase, C89CodePrinter):
|
111 |
+
standard = 'C++98'
|
112 |
+
reserved_words = set(reserved['C++98'])
|
113 |
+
|
114 |
+
|
115 |
+
# _attach_print_methods(CXX98CodePrinter, _math_functions)
|
116 |
+
|
117 |
+
|
118 |
+
class CXX11CodePrinter(_CXXCodePrinterBase, C99CodePrinter):
|
119 |
+
standard = 'C++11'
|
120 |
+
reserved_words = set(reserved['C++11'])
|
121 |
+
type_mappings = dict(chain(
|
122 |
+
CXX98CodePrinter.type_mappings.items(),
|
123 |
+
{
|
124 |
+
Type('int8'): ('int8_t', {'cstdint'}),
|
125 |
+
Type('int16'): ('int16_t', {'cstdint'}),
|
126 |
+
Type('int32'): ('int32_t', {'cstdint'}),
|
127 |
+
Type('int64'): ('int64_t', {'cstdint'}),
|
128 |
+
Type('uint8'): ('uint8_t', {'cstdint'}),
|
129 |
+
Type('uint16'): ('uint16_t', {'cstdint'}),
|
130 |
+
Type('uint32'): ('uint32_t', {'cstdint'}),
|
131 |
+
Type('uint64'): ('uint64_t', {'cstdint'}),
|
132 |
+
Type('complex64'): ('std::complex<float>', {'complex'}),
|
133 |
+
Type('complex128'): ('std::complex<double>', {'complex'}),
|
134 |
+
Type('bool'): ('bool', None),
|
135 |
+
}.items()
|
136 |
+
))
|
137 |
+
|
138 |
+
def _print_using(self, expr):
|
139 |
+
if expr.alias == none:
|
140 |
+
return super()._print_using(expr)
|
141 |
+
else:
|
142 |
+
return 'using %(alias)s = %(type)s' % expr.kwargs(apply=self._print)
|
143 |
+
|
144 |
+
# _attach_print_methods(CXX11CodePrinter, _math_functions)
|
145 |
+
|
146 |
+
|
147 |
+
class CXX17CodePrinter(_CXXCodePrinterBase, C99CodePrinter):
|
148 |
+
standard = 'C++17'
|
149 |
+
reserved_words = set(reserved['C++17'])
|
150 |
+
|
151 |
+
_kf = dict(C99CodePrinter._kf, **_math_functions['C++17'])
|
152 |
+
|
153 |
+
def _print_beta(self, expr):
|
154 |
+
return self._print_math_func(expr)
|
155 |
+
|
156 |
+
def _print_Ei(self, expr):
|
157 |
+
return self._print_math_func(expr)
|
158 |
+
|
159 |
+
def _print_zeta(self, expr):
|
160 |
+
return self._print_math_func(expr)
|
161 |
+
|
162 |
+
|
163 |
+
# _attach_print_methods(CXX17CodePrinter, _math_functions)
|
164 |
+
|
165 |
+
cxx_code_printers = {
|
166 |
+
'c++98': CXX98CodePrinter,
|
167 |
+
'c++11': CXX11CodePrinter,
|
168 |
+
'c++17': CXX17CodePrinter
|
169 |
+
}
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/defaults.py
ADDED
@@ -0,0 +1,5 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
from sympy.core._print_helpers import Printable
|
2 |
+
|
3 |
+
# alias for compatibility
|
4 |
+
Printable.__module__ = __name__
|
5 |
+
DefaultPrinting = Printable
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/dot.py
ADDED
@@ -0,0 +1,294 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
from sympy.core.basic import Basic
|
2 |
+
from sympy.core.expr import Expr
|
3 |
+
from sympy.core.symbol import Symbol
|
4 |
+
from sympy.core.numbers import Integer, Rational, Float
|
5 |
+
from sympy.printing.repr import srepr
|
6 |
+
|
7 |
+
__all__ = ['dotprint']
|
8 |
+
|
9 |
+
default_styles = (
|
10 |
+
(Basic, {'color': 'blue', 'shape': 'ellipse'}),
|
11 |
+
(Expr, {'color': 'black'})
|
12 |
+
)
|
13 |
+
|
14 |
+
slotClasses = (Symbol, Integer, Rational, Float)
|
15 |
+
def purestr(x, with_args=False):
|
16 |
+
"""A string that follows ```obj = type(obj)(*obj.args)``` exactly.
|
17 |
+
|
18 |
+
Parameters
|
19 |
+
==========
|
20 |
+
|
21 |
+
with_args : boolean, optional
|
22 |
+
If ``True``, there will be a second argument for the return
|
23 |
+
value, which is a tuple containing ``purestr`` applied to each
|
24 |
+
of the subnodes.
|
25 |
+
|
26 |
+
If ``False``, there will not be a second argument for the
|
27 |
+
return.
|
28 |
+
|
29 |
+
Default is ``False``
|
30 |
+
|
31 |
+
Examples
|
32 |
+
========
|
33 |
+
|
34 |
+
>>> from sympy import Float, Symbol, MatrixSymbol
|
35 |
+
>>> from sympy import Integer # noqa: F401
|
36 |
+
>>> from sympy.core.symbol import Str # noqa: F401
|
37 |
+
>>> from sympy.printing.dot import purestr
|
38 |
+
|
39 |
+
Applying ``purestr`` for basic symbolic object:
|
40 |
+
>>> code = purestr(Symbol('x'))
|
41 |
+
>>> code
|
42 |
+
"Symbol('x')"
|
43 |
+
>>> eval(code) == Symbol('x')
|
44 |
+
True
|
45 |
+
|
46 |
+
For basic numeric object:
|
47 |
+
>>> purestr(Float(2))
|
48 |
+
"Float('2.0', precision=53)"
|
49 |
+
|
50 |
+
For matrix symbol:
|
51 |
+
>>> code = purestr(MatrixSymbol('x', 2, 2))
|
52 |
+
>>> code
|
53 |
+
"MatrixSymbol(Str('x'), Integer(2), Integer(2))"
|
54 |
+
>>> eval(code) == MatrixSymbol('x', 2, 2)
|
55 |
+
True
|
56 |
+
|
57 |
+
With ``with_args=True``:
|
58 |
+
>>> purestr(Float(2), with_args=True)
|
59 |
+
("Float('2.0', precision=53)", ())
|
60 |
+
>>> purestr(MatrixSymbol('x', 2, 2), with_args=True)
|
61 |
+
("MatrixSymbol(Str('x'), Integer(2), Integer(2))",
|
62 |
+
("Str('x')", 'Integer(2)', 'Integer(2)'))
|
63 |
+
"""
|
64 |
+
sargs = ()
|
65 |
+
if not isinstance(x, Basic):
|
66 |
+
rv = str(x)
|
67 |
+
elif not x.args:
|
68 |
+
rv = srepr(x)
|
69 |
+
else:
|
70 |
+
args = x.args
|
71 |
+
sargs = tuple(map(purestr, args))
|
72 |
+
rv = "%s(%s)"%(type(x).__name__, ', '.join(sargs))
|
73 |
+
if with_args:
|
74 |
+
rv = rv, sargs
|
75 |
+
return rv
|
76 |
+
|
77 |
+
|
78 |
+
def styleof(expr, styles=default_styles):
|
79 |
+
""" Merge style dictionaries in order
|
80 |
+
|
81 |
+
Examples
|
82 |
+
========
|
83 |
+
|
84 |
+
>>> from sympy import Symbol, Basic, Expr, S
|
85 |
+
>>> from sympy.printing.dot import styleof
|
86 |
+
>>> styles = [(Basic, {'color': 'blue', 'shape': 'ellipse'}),
|
87 |
+
... (Expr, {'color': 'black'})]
|
88 |
+
|
89 |
+
>>> styleof(Basic(S(1)), styles)
|
90 |
+
{'color': 'blue', 'shape': 'ellipse'}
|
91 |
+
|
92 |
+
>>> x = Symbol('x')
|
93 |
+
>>> styleof(x + 1, styles) # this is an Expr
|
94 |
+
{'color': 'black', 'shape': 'ellipse'}
|
95 |
+
"""
|
96 |
+
style = {}
|
97 |
+
for typ, sty in styles:
|
98 |
+
if isinstance(expr, typ):
|
99 |
+
style.update(sty)
|
100 |
+
return style
|
101 |
+
|
102 |
+
|
103 |
+
def attrprint(d, delimiter=', '):
|
104 |
+
""" Print a dictionary of attributes
|
105 |
+
|
106 |
+
Examples
|
107 |
+
========
|
108 |
+
|
109 |
+
>>> from sympy.printing.dot import attrprint
|
110 |
+
>>> print(attrprint({'color': 'blue', 'shape': 'ellipse'}))
|
111 |
+
"color"="blue", "shape"="ellipse"
|
112 |
+
"""
|
113 |
+
return delimiter.join('"%s"="%s"'%item for item in sorted(d.items()))
|
114 |
+
|
115 |
+
|
116 |
+
def dotnode(expr, styles=default_styles, labelfunc=str, pos=(), repeat=True):
|
117 |
+
""" String defining a node
|
118 |
+
|
119 |
+
Examples
|
120 |
+
========
|
121 |
+
|
122 |
+
>>> from sympy.printing.dot import dotnode
|
123 |
+
>>> from sympy.abc import x
|
124 |
+
>>> print(dotnode(x))
|
125 |
+
"Symbol('x')_()" ["color"="black", "label"="x", "shape"="ellipse"];
|
126 |
+
"""
|
127 |
+
style = styleof(expr, styles)
|
128 |
+
|
129 |
+
if isinstance(expr, Basic) and not expr.is_Atom:
|
130 |
+
label = str(expr.__class__.__name__)
|
131 |
+
else:
|
132 |
+
label = labelfunc(expr)
|
133 |
+
style['label'] = label
|
134 |
+
expr_str = purestr(expr)
|
135 |
+
if repeat:
|
136 |
+
expr_str += '_%s' % str(pos)
|
137 |
+
return '"%s" [%s];' % (expr_str, attrprint(style))
|
138 |
+
|
139 |
+
|
140 |
+
def dotedges(expr, atom=lambda x: not isinstance(x, Basic), pos=(), repeat=True):
|
141 |
+
""" List of strings for all expr->expr.arg pairs
|
142 |
+
|
143 |
+
See the docstring of dotprint for explanations of the options.
|
144 |
+
|
145 |
+
Examples
|
146 |
+
========
|
147 |
+
|
148 |
+
>>> from sympy.printing.dot import dotedges
|
149 |
+
>>> from sympy.abc import x
|
150 |
+
>>> for e in dotedges(x+2):
|
151 |
+
... print(e)
|
152 |
+
"Add(Integer(2), Symbol('x'))_()" -> "Integer(2)_(0,)";
|
153 |
+
"Add(Integer(2), Symbol('x'))_()" -> "Symbol('x')_(1,)";
|
154 |
+
"""
|
155 |
+
if atom(expr):
|
156 |
+
return []
|
157 |
+
else:
|
158 |
+
expr_str, arg_strs = purestr(expr, with_args=True)
|
159 |
+
if repeat:
|
160 |
+
expr_str += '_%s' % str(pos)
|
161 |
+
arg_strs = ['%s_%s' % (a, str(pos + (i,)))
|
162 |
+
for i, a in enumerate(arg_strs)]
|
163 |
+
return ['"%s" -> "%s";' % (expr_str, a) for a in arg_strs]
|
164 |
+
|
165 |
+
template = \
|
166 |
+
"""digraph{
|
167 |
+
|
168 |
+
# Graph style
|
169 |
+
%(graphstyle)s
|
170 |
+
|
171 |
+
#########
|
172 |
+
# Nodes #
|
173 |
+
#########
|
174 |
+
|
175 |
+
%(nodes)s
|
176 |
+
|
177 |
+
#########
|
178 |
+
# Edges #
|
179 |
+
#########
|
180 |
+
|
181 |
+
%(edges)s
|
182 |
+
}"""
|
183 |
+
|
184 |
+
_graphstyle = {'rankdir': 'TD', 'ordering': 'out'}
|
185 |
+
|
186 |
+
def dotprint(expr,
|
187 |
+
styles=default_styles, atom=lambda x: not isinstance(x, Basic),
|
188 |
+
maxdepth=None, repeat=True, labelfunc=str, **kwargs):
|
189 |
+
"""DOT description of a SymPy expression tree
|
190 |
+
|
191 |
+
Parameters
|
192 |
+
==========
|
193 |
+
|
194 |
+
styles : list of lists composed of (Class, mapping), optional
|
195 |
+
Styles for different classes.
|
196 |
+
|
197 |
+
The default is
|
198 |
+
|
199 |
+
.. code-block:: python
|
200 |
+
|
201 |
+
(
|
202 |
+
(Basic, {'color': 'blue', 'shape': 'ellipse'}),
|
203 |
+
(Expr, {'color': 'black'})
|
204 |
+
)
|
205 |
+
|
206 |
+
atom : function, optional
|
207 |
+
Function used to determine if an arg is an atom.
|
208 |
+
|
209 |
+
A good choice is ``lambda x: not x.args``.
|
210 |
+
|
211 |
+
The default is ``lambda x: not isinstance(x, Basic)``.
|
212 |
+
|
213 |
+
maxdepth : integer, optional
|
214 |
+
The maximum depth.
|
215 |
+
|
216 |
+
The default is ``None``, meaning no limit.
|
217 |
+
|
218 |
+
repeat : boolean, optional
|
219 |
+
Whether to use different nodes for common subexpressions.
|
220 |
+
|
221 |
+
The default is ``True``.
|
222 |
+
|
223 |
+
For example, for ``x + x*y`` with ``repeat=True``, it will have
|
224 |
+
two nodes for ``x``; with ``repeat=False``, it will have one
|
225 |
+
node.
|
226 |
+
|
227 |
+
.. warning::
|
228 |
+
Even if a node appears twice in the same object like ``x`` in
|
229 |
+
``Pow(x, x)``, it will still only appear once.
|
230 |
+
Hence, with ``repeat=False``, the number of arrows out of an
|
231 |
+
object might not equal the number of args it has.
|
232 |
+
|
233 |
+
labelfunc : function, optional
|
234 |
+
A function to create a label for a given leaf node.
|
235 |
+
|
236 |
+
The default is ``str``.
|
237 |
+
|
238 |
+
Another good option is ``srepr``.
|
239 |
+
|
240 |
+
For example with ``str``, the leaf nodes of ``x + 1`` are labeled,
|
241 |
+
``x`` and ``1``. With ``srepr``, they are labeled ``Symbol('x')``
|
242 |
+
and ``Integer(1)``.
|
243 |
+
|
244 |
+
**kwargs : optional
|
245 |
+
Additional keyword arguments are included as styles for the graph.
|
246 |
+
|
247 |
+
Examples
|
248 |
+
========
|
249 |
+
|
250 |
+
>>> from sympy import dotprint
|
251 |
+
>>> from sympy.abc import x
|
252 |
+
>>> print(dotprint(x+2)) # doctest: +NORMALIZE_WHITESPACE
|
253 |
+
digraph{
|
254 |
+
<BLANKLINE>
|
255 |
+
# Graph style
|
256 |
+
"ordering"="out"
|
257 |
+
"rankdir"="TD"
|
258 |
+
<BLANKLINE>
|
259 |
+
#########
|
260 |
+
# Nodes #
|
261 |
+
#########
|
262 |
+
<BLANKLINE>
|
263 |
+
"Add(Integer(2), Symbol('x'))_()" ["color"="black", "label"="Add", "shape"="ellipse"];
|
264 |
+
"Integer(2)_(0,)" ["color"="black", "label"="2", "shape"="ellipse"];
|
265 |
+
"Symbol('x')_(1,)" ["color"="black", "label"="x", "shape"="ellipse"];
|
266 |
+
<BLANKLINE>
|
267 |
+
#########
|
268 |
+
# Edges #
|
269 |
+
#########
|
270 |
+
<BLANKLINE>
|
271 |
+
"Add(Integer(2), Symbol('x'))_()" -> "Integer(2)_(0,)";
|
272 |
+
"Add(Integer(2), Symbol('x'))_()" -> "Symbol('x')_(1,)";
|
273 |
+
}
|
274 |
+
|
275 |
+
"""
|
276 |
+
# repeat works by adding a signature tuple to the end of each node for its
|
277 |
+
# position in the graph. For example, for expr = Add(x, Pow(x, 2)), the x in the
|
278 |
+
# Pow will have the tuple (1, 0), meaning it is expr.args[1].args[0].
|
279 |
+
graphstyle = _graphstyle.copy()
|
280 |
+
graphstyle.update(kwargs)
|
281 |
+
|
282 |
+
nodes = []
|
283 |
+
edges = []
|
284 |
+
def traverse(e, depth, pos=()):
|
285 |
+
nodes.append(dotnode(e, styles, labelfunc=labelfunc, pos=pos, repeat=repeat))
|
286 |
+
if maxdepth and depth >= maxdepth:
|
287 |
+
return
|
288 |
+
edges.extend(dotedges(e, atom=atom, pos=pos, repeat=repeat))
|
289 |
+
[traverse(arg, depth+1, pos + (i,)) for i, arg in enumerate(e.args) if not atom(arg)]
|
290 |
+
traverse(expr, 0)
|
291 |
+
|
292 |
+
return template%{'graphstyle': attrprint(graphstyle, delimiter='\n'),
|
293 |
+
'nodes': '\n'.join(nodes),
|
294 |
+
'edges': '\n'.join(edges)}
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/fortran.py
ADDED
@@ -0,0 +1,782 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
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|
|
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|
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|
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|
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|
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|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
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|
|
|
|
|
|
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|
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|
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|
|
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|
|
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|
|
|
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|
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|
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|
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|
|
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|
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|
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|
1 |
+
"""
|
2 |
+
Fortran code printer
|
3 |
+
|
4 |
+
The FCodePrinter converts single SymPy expressions into single Fortran
|
5 |
+
expressions, using the functions defined in the Fortran 77 standard where
|
6 |
+
possible. Some useful pointers to Fortran can be found on wikipedia:
|
7 |
+
|
8 |
+
https://en.wikipedia.org/wiki/Fortran
|
9 |
+
|
10 |
+
Most of the code below is based on the "Professional Programmer\'s Guide to
|
11 |
+
Fortran77" by Clive G. Page:
|
12 |
+
|
13 |
+
https://www.star.le.ac.uk/~cgp/prof77.html
|
14 |
+
|
15 |
+
Fortran is a case-insensitive language. This might cause trouble because
|
16 |
+
SymPy is case sensitive. So, fcode adds underscores to variable names when
|
17 |
+
it is necessary to make them different for Fortran.
|
18 |
+
"""
|
19 |
+
|
20 |
+
from __future__ import annotations
|
21 |
+
from typing import Any
|
22 |
+
|
23 |
+
from collections import defaultdict
|
24 |
+
from itertools import chain
|
25 |
+
import string
|
26 |
+
|
27 |
+
from sympy.codegen.ast import (
|
28 |
+
Assignment, Declaration, Pointer, value_const,
|
29 |
+
float32, float64, float80, complex64, complex128, int8, int16, int32,
|
30 |
+
int64, intc, real, integer, bool_, complex_
|
31 |
+
)
|
32 |
+
from sympy.codegen.fnodes import (
|
33 |
+
allocatable, isign, dsign, cmplx, merge, literal_dp, elemental, pure,
|
34 |
+
intent_in, intent_out, intent_inout
|
35 |
+
)
|
36 |
+
from sympy.core import S, Add, N, Float, Symbol
|
37 |
+
from sympy.core.function import Function
|
38 |
+
from sympy.core.numbers import equal_valued
|
39 |
+
from sympy.core.relational import Eq
|
40 |
+
from sympy.sets import Range
|
41 |
+
from sympy.printing.codeprinter import CodePrinter
|
42 |
+
from sympy.printing.precedence import precedence, PRECEDENCE
|
43 |
+
from sympy.printing.printer import printer_context
|
44 |
+
|
45 |
+
# These are defined in the other file so we can avoid importing sympy.codegen
|
46 |
+
# from the top-level 'import sympy'. Export them here as well.
|
47 |
+
from sympy.printing.codeprinter import fcode, print_fcode # noqa:F401
|
48 |
+
|
49 |
+
known_functions = {
|
50 |
+
"sin": "sin",
|
51 |
+
"cos": "cos",
|
52 |
+
"tan": "tan",
|
53 |
+
"asin": "asin",
|
54 |
+
"acos": "acos",
|
55 |
+
"atan": "atan",
|
56 |
+
"atan2": "atan2",
|
57 |
+
"sinh": "sinh",
|
58 |
+
"cosh": "cosh",
|
59 |
+
"tanh": "tanh",
|
60 |
+
"log": "log",
|
61 |
+
"exp": "exp",
|
62 |
+
"erf": "erf",
|
63 |
+
"Abs": "abs",
|
64 |
+
"conjugate": "conjg",
|
65 |
+
"Max": "max",
|
66 |
+
"Min": "min",
|
67 |
+
}
|
68 |
+
|
69 |
+
|
70 |
+
class FCodePrinter(CodePrinter):
|
71 |
+
"""A printer to convert SymPy expressions to strings of Fortran code"""
|
72 |
+
printmethod = "_fcode"
|
73 |
+
language = "Fortran"
|
74 |
+
|
75 |
+
type_aliases = {
|
76 |
+
integer: int32,
|
77 |
+
real: float64,
|
78 |
+
complex_: complex128,
|
79 |
+
}
|
80 |
+
|
81 |
+
type_mappings = {
|
82 |
+
intc: 'integer(c_int)',
|
83 |
+
float32: 'real*4', # real(kind(0.e0))
|
84 |
+
float64: 'real*8', # real(kind(0.d0))
|
85 |
+
float80: 'real*10', # real(kind(????))
|
86 |
+
complex64: 'complex*8',
|
87 |
+
complex128: 'complex*16',
|
88 |
+
int8: 'integer*1',
|
89 |
+
int16: 'integer*2',
|
90 |
+
int32: 'integer*4',
|
91 |
+
int64: 'integer*8',
|
92 |
+
bool_: 'logical'
|
93 |
+
}
|
94 |
+
|
95 |
+
type_modules = {
|
96 |
+
intc: {'iso_c_binding': 'c_int'}
|
97 |
+
}
|
98 |
+
|
99 |
+
_default_settings: dict[str, Any] = {
|
100 |
+
'order': None,
|
101 |
+
'full_prec': 'auto',
|
102 |
+
'precision': 17,
|
103 |
+
'user_functions': {},
|
104 |
+
'human': True,
|
105 |
+
'allow_unknown_functions': False,
|
106 |
+
'source_format': 'fixed',
|
107 |
+
'contract': True,
|
108 |
+
'standard': 77,
|
109 |
+
'name_mangling': True,
|
110 |
+
}
|
111 |
+
|
112 |
+
_operators = {
|
113 |
+
'and': '.and.',
|
114 |
+
'or': '.or.',
|
115 |
+
'xor': '.neqv.',
|
116 |
+
'equivalent': '.eqv.',
|
117 |
+
'not': '.not. ',
|
118 |
+
}
|
119 |
+
|
120 |
+
_relationals = {
|
121 |
+
'!=': '/=',
|
122 |
+
}
|
123 |
+
|
124 |
+
def __init__(self, settings=None):
|
125 |
+
if not settings:
|
126 |
+
settings = {}
|
127 |
+
self.mangled_symbols = {} # Dict showing mapping of all words
|
128 |
+
self.used_name = []
|
129 |
+
self.type_aliases = dict(chain(self.type_aliases.items(),
|
130 |
+
settings.pop('type_aliases', {}).items()))
|
131 |
+
self.type_mappings = dict(chain(self.type_mappings.items(),
|
132 |
+
settings.pop('type_mappings', {}).items()))
|
133 |
+
super().__init__(settings)
|
134 |
+
self.known_functions = dict(known_functions)
|
135 |
+
userfuncs = settings.get('user_functions', {})
|
136 |
+
self.known_functions.update(userfuncs)
|
137 |
+
# leading columns depend on fixed or free format
|
138 |
+
standards = {66, 77, 90, 95, 2003, 2008}
|
139 |
+
if self._settings['standard'] not in standards:
|
140 |
+
raise ValueError("Unknown Fortran standard: %s" % self._settings[
|
141 |
+
'standard'])
|
142 |
+
self.module_uses = defaultdict(set) # e.g.: use iso_c_binding, only: c_int
|
143 |
+
|
144 |
+
@property
|
145 |
+
def _lead(self):
|
146 |
+
if self._settings['source_format'] == 'fixed':
|
147 |
+
return {'code': " ", 'cont': " @ ", 'comment': "C "}
|
148 |
+
elif self._settings['source_format'] == 'free':
|
149 |
+
return {'code': "", 'cont': " ", 'comment': "! "}
|
150 |
+
else:
|
151 |
+
raise ValueError("Unknown source format: %s" % self._settings['source_format'])
|
152 |
+
|
153 |
+
def _print_Symbol(self, expr):
|
154 |
+
if self._settings['name_mangling'] == True:
|
155 |
+
if expr not in self.mangled_symbols:
|
156 |
+
name = expr.name
|
157 |
+
while name.lower() in self.used_name:
|
158 |
+
name += '_'
|
159 |
+
self.used_name.append(name.lower())
|
160 |
+
if name == expr.name:
|
161 |
+
self.mangled_symbols[expr] = expr
|
162 |
+
else:
|
163 |
+
self.mangled_symbols[expr] = Symbol(name)
|
164 |
+
|
165 |
+
expr = expr.xreplace(self.mangled_symbols)
|
166 |
+
|
167 |
+
name = super()._print_Symbol(expr)
|
168 |
+
return name
|
169 |
+
|
170 |
+
def _rate_index_position(self, p):
|
171 |
+
return -p*5
|
172 |
+
|
173 |
+
def _get_statement(self, codestring):
|
174 |
+
return codestring
|
175 |
+
|
176 |
+
def _get_comment(self, text):
|
177 |
+
return "! {}".format(text)
|
178 |
+
|
179 |
+
def _declare_number_const(self, name, value):
|
180 |
+
return "parameter ({} = {})".format(name, self._print(value))
|
181 |
+
|
182 |
+
def _print_NumberSymbol(self, expr):
|
183 |
+
# A Number symbol that is not implemented here or with _printmethod
|
184 |
+
# is registered and evaluated
|
185 |
+
self._number_symbols.add((expr, Float(expr.evalf(self._settings['precision']))))
|
186 |
+
return str(expr)
|
187 |
+
|
188 |
+
def _format_code(self, lines):
|
189 |
+
return self._wrap_fortran(self.indent_code(lines))
|
190 |
+
|
191 |
+
def _traverse_matrix_indices(self, mat):
|
192 |
+
rows, cols = mat.shape
|
193 |
+
return ((i, j) for j in range(cols) for i in range(rows))
|
194 |
+
|
195 |
+
def _get_loop_opening_ending(self, indices):
|
196 |
+
open_lines = []
|
197 |
+
close_lines = []
|
198 |
+
for i in indices:
|
199 |
+
# fortran arrays start at 1 and end at dimension
|
200 |
+
var, start, stop = map(self._print,
|
201 |
+
[i.label, i.lower + 1, i.upper + 1])
|
202 |
+
open_lines.append("do %s = %s, %s" % (var, start, stop))
|
203 |
+
close_lines.append("end do")
|
204 |
+
return open_lines, close_lines
|
205 |
+
|
206 |
+
def _print_sign(self, expr):
|
207 |
+
from sympy.functions.elementary.complexes import Abs
|
208 |
+
arg, = expr.args
|
209 |
+
if arg.is_integer:
|
210 |
+
new_expr = merge(0, isign(1, arg), Eq(arg, 0))
|
211 |
+
elif (arg.is_complex or arg.is_infinite):
|
212 |
+
new_expr = merge(cmplx(literal_dp(0), literal_dp(0)), arg/Abs(arg), Eq(Abs(arg), literal_dp(0)))
|
213 |
+
else:
|
214 |
+
new_expr = merge(literal_dp(0), dsign(literal_dp(1), arg), Eq(arg, literal_dp(0)))
|
215 |
+
return self._print(new_expr)
|
216 |
+
|
217 |
+
|
218 |
+
def _print_Piecewise(self, expr):
|
219 |
+
if expr.args[-1].cond != True:
|
220 |
+
# We need the last conditional to be a True, otherwise the resulting
|
221 |
+
# function may not return a result.
|
222 |
+
raise ValueError("All Piecewise expressions must contain an "
|
223 |
+
"(expr, True) statement to be used as a default "
|
224 |
+
"condition. Without one, the generated "
|
225 |
+
"expression may not evaluate to anything under "
|
226 |
+
"some condition.")
|
227 |
+
lines = []
|
228 |
+
if expr.has(Assignment):
|
229 |
+
for i, (e, c) in enumerate(expr.args):
|
230 |
+
if i == 0:
|
231 |
+
lines.append("if (%s) then" % self._print(c))
|
232 |
+
elif i == len(expr.args) - 1 and c == True:
|
233 |
+
lines.append("else")
|
234 |
+
else:
|
235 |
+
lines.append("else if (%s) then" % self._print(c))
|
236 |
+
lines.append(self._print(e))
|
237 |
+
lines.append("end if")
|
238 |
+
return "\n".join(lines)
|
239 |
+
elif self._settings["standard"] >= 95:
|
240 |
+
# Only supported in F95 and newer:
|
241 |
+
# The piecewise was used in an expression, need to do inline
|
242 |
+
# operators. This has the downside that inline operators will
|
243 |
+
# not work for statements that span multiple lines (Matrix or
|
244 |
+
# Indexed expressions).
|
245 |
+
pattern = "merge({T}, {F}, {COND})"
|
246 |
+
code = self._print(expr.args[-1].expr)
|
247 |
+
terms = list(expr.args[:-1])
|
248 |
+
while terms:
|
249 |
+
e, c = terms.pop()
|
250 |
+
expr = self._print(e)
|
251 |
+
cond = self._print(c)
|
252 |
+
code = pattern.format(T=expr, F=code, COND=cond)
|
253 |
+
return code
|
254 |
+
else:
|
255 |
+
# `merge` is not supported prior to F95
|
256 |
+
raise NotImplementedError("Using Piecewise as an expression using "
|
257 |
+
"inline operators is not supported in "
|
258 |
+
"standards earlier than Fortran95.")
|
259 |
+
|
260 |
+
def _print_MatrixElement(self, expr):
|
261 |
+
return "{}({}, {})".format(self.parenthesize(expr.parent,
|
262 |
+
PRECEDENCE["Atom"], strict=True), expr.i + 1, expr.j + 1)
|
263 |
+
|
264 |
+
def _print_Add(self, expr):
|
265 |
+
# purpose: print complex numbers nicely in Fortran.
|
266 |
+
# collect the purely real and purely imaginary parts:
|
267 |
+
pure_real = []
|
268 |
+
pure_imaginary = []
|
269 |
+
mixed = []
|
270 |
+
for arg in expr.args:
|
271 |
+
if arg.is_number and arg.is_real:
|
272 |
+
pure_real.append(arg)
|
273 |
+
elif arg.is_number and arg.is_imaginary:
|
274 |
+
pure_imaginary.append(arg)
|
275 |
+
else:
|
276 |
+
mixed.append(arg)
|
277 |
+
if pure_imaginary:
|
278 |
+
if mixed:
|
279 |
+
PREC = precedence(expr)
|
280 |
+
term = Add(*mixed)
|
281 |
+
t = self._print(term)
|
282 |
+
if t.startswith('-'):
|
283 |
+
sign = "-"
|
284 |
+
t = t[1:]
|
285 |
+
else:
|
286 |
+
sign = "+"
|
287 |
+
if precedence(term) < PREC:
|
288 |
+
t = "(%s)" % t
|
289 |
+
|
290 |
+
return "cmplx(%s,%s) %s %s" % (
|
291 |
+
self._print(Add(*pure_real)),
|
292 |
+
self._print(-S.ImaginaryUnit*Add(*pure_imaginary)),
|
293 |
+
sign, t,
|
294 |
+
)
|
295 |
+
else:
|
296 |
+
return "cmplx(%s,%s)" % (
|
297 |
+
self._print(Add(*pure_real)),
|
298 |
+
self._print(-S.ImaginaryUnit*Add(*pure_imaginary)),
|
299 |
+
)
|
300 |
+
else:
|
301 |
+
return CodePrinter._print_Add(self, expr)
|
302 |
+
|
303 |
+
def _print_Function(self, expr):
|
304 |
+
# All constant function args are evaluated as floats
|
305 |
+
prec = self._settings['precision']
|
306 |
+
args = [N(a, prec) for a in expr.args]
|
307 |
+
eval_expr = expr.func(*args)
|
308 |
+
if not isinstance(eval_expr, Function):
|
309 |
+
return self._print(eval_expr)
|
310 |
+
else:
|
311 |
+
return CodePrinter._print_Function(self, expr.func(*args))
|
312 |
+
|
313 |
+
def _print_Mod(self, expr):
|
314 |
+
# NOTE : Fortran has the functions mod() and modulo(). modulo() behaves
|
315 |
+
# the same wrt to the sign of the arguments as Python and SymPy's
|
316 |
+
# modulus computations (% and Mod()) but is not available in Fortran 66
|
317 |
+
# or Fortran 77, thus we raise an error.
|
318 |
+
if self._settings['standard'] in [66, 77]:
|
319 |
+
msg = ("Python % operator and SymPy's Mod() function are not "
|
320 |
+
"supported by Fortran 66 or 77 standards.")
|
321 |
+
raise NotImplementedError(msg)
|
322 |
+
else:
|
323 |
+
x, y = expr.args
|
324 |
+
return " modulo({}, {})".format(self._print(x), self._print(y))
|
325 |
+
|
326 |
+
def _print_ImaginaryUnit(self, expr):
|
327 |
+
# purpose: print complex numbers nicely in Fortran.
|
328 |
+
return "cmplx(0,1)"
|
329 |
+
|
330 |
+
def _print_int(self, expr):
|
331 |
+
return str(expr)
|
332 |
+
|
333 |
+
def _print_Mul(self, expr):
|
334 |
+
# purpose: print complex numbers nicely in Fortran.
|
335 |
+
if expr.is_number and expr.is_imaginary:
|
336 |
+
return "cmplx(0,%s)" % (
|
337 |
+
self._print(-S.ImaginaryUnit*expr)
|
338 |
+
)
|
339 |
+
else:
|
340 |
+
return CodePrinter._print_Mul(self, expr)
|
341 |
+
|
342 |
+
def _print_Pow(self, expr):
|
343 |
+
PREC = precedence(expr)
|
344 |
+
if equal_valued(expr.exp, -1):
|
345 |
+
return '%s/%s' % (
|
346 |
+
self._print(literal_dp(1)),
|
347 |
+
self.parenthesize(expr.base, PREC)
|
348 |
+
)
|
349 |
+
elif equal_valued(expr.exp, 0.5):
|
350 |
+
if expr.base.is_integer:
|
351 |
+
# Fortran intrinsic sqrt() does not accept integer argument
|
352 |
+
if expr.base.is_Number:
|
353 |
+
return 'sqrt(%s.0d0)' % self._print(expr.base)
|
354 |
+
else:
|
355 |
+
return 'sqrt(dble(%s))' % self._print(expr.base)
|
356 |
+
else:
|
357 |
+
return 'sqrt(%s)' % self._print(expr.base)
|
358 |
+
else:
|
359 |
+
return CodePrinter._print_Pow(self, expr)
|
360 |
+
|
361 |
+
def _print_Rational(self, expr):
|
362 |
+
p, q = int(expr.p), int(expr.q)
|
363 |
+
return "%d.0d0/%d.0d0" % (p, q)
|
364 |
+
|
365 |
+
def _print_Float(self, expr):
|
366 |
+
printed = CodePrinter._print_Float(self, expr)
|
367 |
+
e = printed.find('e')
|
368 |
+
if e > -1:
|
369 |
+
return "%sd%s" % (printed[:e], printed[e + 1:])
|
370 |
+
return "%sd0" % printed
|
371 |
+
|
372 |
+
def _print_Relational(self, expr):
|
373 |
+
lhs_code = self._print(expr.lhs)
|
374 |
+
rhs_code = self._print(expr.rhs)
|
375 |
+
op = expr.rel_op
|
376 |
+
op = op if op not in self._relationals else self._relationals[op]
|
377 |
+
return "{} {} {}".format(lhs_code, op, rhs_code)
|
378 |
+
|
379 |
+
def _print_Indexed(self, expr):
|
380 |
+
inds = [ self._print(i) for i in expr.indices ]
|
381 |
+
return "%s(%s)" % (self._print(expr.base.label), ", ".join(inds))
|
382 |
+
|
383 |
+
def _print_Idx(self, expr):
|
384 |
+
return self._print(expr.label)
|
385 |
+
|
386 |
+
def _print_AugmentedAssignment(self, expr):
|
387 |
+
lhs_code = self._print(expr.lhs)
|
388 |
+
rhs_code = self._print(expr.rhs)
|
389 |
+
return self._get_statement("{0} = {0} {1} {2}".format(
|
390 |
+
self._print(lhs_code), self._print(expr.binop), self._print(rhs_code)))
|
391 |
+
|
392 |
+
def _print_sum_(self, sm):
|
393 |
+
params = self._print(sm.array)
|
394 |
+
if sm.dim != None: # Must use '!= None', cannot use 'is not None'
|
395 |
+
params += ', ' + self._print(sm.dim)
|
396 |
+
if sm.mask != None: # Must use '!= None', cannot use 'is not None'
|
397 |
+
params += ', mask=' + self._print(sm.mask)
|
398 |
+
return '%s(%s)' % (sm.__class__.__name__.rstrip('_'), params)
|
399 |
+
|
400 |
+
def _print_product_(self, prod):
|
401 |
+
return self._print_sum_(prod)
|
402 |
+
|
403 |
+
def _print_Do(self, do):
|
404 |
+
excl = ['concurrent']
|
405 |
+
if do.step == 1:
|
406 |
+
excl.append('step')
|
407 |
+
step = ''
|
408 |
+
else:
|
409 |
+
step = ', {step}'
|
410 |
+
|
411 |
+
return (
|
412 |
+
'do {concurrent}{counter} = {first}, {last}'+step+'\n'
|
413 |
+
'{body}\n'
|
414 |
+
'end do\n'
|
415 |
+
).format(
|
416 |
+
concurrent='concurrent ' if do.concurrent else '',
|
417 |
+
**do.kwargs(apply=lambda arg: self._print(arg), exclude=excl)
|
418 |
+
)
|
419 |
+
|
420 |
+
def _print_ImpliedDoLoop(self, idl):
|
421 |
+
step = '' if idl.step == 1 else ', {step}'
|
422 |
+
return ('({expr}, {counter} = {first}, {last}'+step+')').format(
|
423 |
+
**idl.kwargs(apply=lambda arg: self._print(arg))
|
424 |
+
)
|
425 |
+
|
426 |
+
def _print_For(self, expr):
|
427 |
+
target = self._print(expr.target)
|
428 |
+
if isinstance(expr.iterable, Range):
|
429 |
+
start, stop, step = expr.iterable.args
|
430 |
+
else:
|
431 |
+
raise NotImplementedError("Only iterable currently supported is Range")
|
432 |
+
body = self._print(expr.body)
|
433 |
+
return ('do {target} = {start}, {stop}, {step}\n'
|
434 |
+
'{body}\n'
|
435 |
+
'end do').format(target=target, start=start, stop=stop - 1,
|
436 |
+
step=step, body=body)
|
437 |
+
|
438 |
+
def _print_Type(self, type_):
|
439 |
+
type_ = self.type_aliases.get(type_, type_)
|
440 |
+
type_str = self.type_mappings.get(type_, type_.name)
|
441 |
+
module_uses = self.type_modules.get(type_)
|
442 |
+
if module_uses:
|
443 |
+
for k, v in module_uses:
|
444 |
+
self.module_uses[k].add(v)
|
445 |
+
return type_str
|
446 |
+
|
447 |
+
def _print_Element(self, elem):
|
448 |
+
return '{symbol}({idxs})'.format(
|
449 |
+
symbol=self._print(elem.symbol),
|
450 |
+
idxs=', '.join((self._print(arg) for arg in elem.indices))
|
451 |
+
)
|
452 |
+
|
453 |
+
def _print_Extent(self, ext):
|
454 |
+
return str(ext)
|
455 |
+
|
456 |
+
def _print_Declaration(self, expr):
|
457 |
+
var = expr.variable
|
458 |
+
val = var.value
|
459 |
+
dim = var.attr_params('dimension')
|
460 |
+
intents = [intent in var.attrs for intent in (intent_in, intent_out, intent_inout)]
|
461 |
+
if intents.count(True) == 0:
|
462 |
+
intent = ''
|
463 |
+
elif intents.count(True) == 1:
|
464 |
+
intent = ', intent(%s)' % ['in', 'out', 'inout'][intents.index(True)]
|
465 |
+
else:
|
466 |
+
raise ValueError("Multiple intents specified for %s" % self)
|
467 |
+
|
468 |
+
if isinstance(var, Pointer):
|
469 |
+
raise NotImplementedError("Pointers are not available by default in Fortran.")
|
470 |
+
if self._settings["standard"] >= 90:
|
471 |
+
result = '{t}{vc}{dim}{intent}{alloc} :: {s}'.format(
|
472 |
+
t=self._print(var.type),
|
473 |
+
vc=', parameter' if value_const in var.attrs else '',
|
474 |
+
dim=', dimension(%s)' % ', '.join((self._print(arg) for arg in dim)) if dim else '',
|
475 |
+
intent=intent,
|
476 |
+
alloc=', allocatable' if allocatable in var.attrs else '',
|
477 |
+
s=self._print(var.symbol)
|
478 |
+
)
|
479 |
+
if val != None: # Must be "!= None", cannot be "is not None"
|
480 |
+
result += ' = %s' % self._print(val)
|
481 |
+
else:
|
482 |
+
if value_const in var.attrs or val:
|
483 |
+
raise NotImplementedError("F77 init./parameter statem. req. multiple lines.")
|
484 |
+
result = ' '.join((self._print(arg) for arg in [var.type, var.symbol]))
|
485 |
+
|
486 |
+
return result
|
487 |
+
|
488 |
+
|
489 |
+
def _print_Infinity(self, expr):
|
490 |
+
return '(huge(%s) + 1)' % self._print(literal_dp(0))
|
491 |
+
|
492 |
+
def _print_While(self, expr):
|
493 |
+
return 'do while ({condition})\n{body}\nend do'.format(**expr.kwargs(
|
494 |
+
apply=lambda arg: self._print(arg)))
|
495 |
+
|
496 |
+
def _print_BooleanTrue(self, expr):
|
497 |
+
return '.true.'
|
498 |
+
|
499 |
+
def _print_BooleanFalse(self, expr):
|
500 |
+
return '.false.'
|
501 |
+
|
502 |
+
def _pad_leading_columns(self, lines):
|
503 |
+
result = []
|
504 |
+
for line in lines:
|
505 |
+
if line.startswith('!'):
|
506 |
+
result.append(self._lead['comment'] + line[1:].lstrip())
|
507 |
+
else:
|
508 |
+
result.append(self._lead['code'] + line)
|
509 |
+
return result
|
510 |
+
|
511 |
+
def _wrap_fortran(self, lines):
|
512 |
+
"""Wrap long Fortran lines
|
513 |
+
|
514 |
+
Argument:
|
515 |
+
lines -- a list of lines (without \\n character)
|
516 |
+
|
517 |
+
A comment line is split at white space. Code lines are split with a more
|
518 |
+
complex rule to give nice results.
|
519 |
+
"""
|
520 |
+
# routine to find split point in a code line
|
521 |
+
my_alnum = set("_+-." + string.digits + string.ascii_letters)
|
522 |
+
my_white = set(" \t()")
|
523 |
+
|
524 |
+
def split_pos_code(line, endpos):
|
525 |
+
if len(line) <= endpos:
|
526 |
+
return len(line)
|
527 |
+
pos = endpos
|
528 |
+
split = lambda pos: \
|
529 |
+
(line[pos] in my_alnum and line[pos - 1] not in my_alnum) or \
|
530 |
+
(line[pos] not in my_alnum and line[pos - 1] in my_alnum) or \
|
531 |
+
(line[pos] in my_white and line[pos - 1] not in my_white) or \
|
532 |
+
(line[pos] not in my_white and line[pos - 1] in my_white)
|
533 |
+
while not split(pos):
|
534 |
+
pos -= 1
|
535 |
+
if pos == 0:
|
536 |
+
return endpos
|
537 |
+
return pos
|
538 |
+
# split line by line and add the split lines to result
|
539 |
+
result = []
|
540 |
+
if self._settings['source_format'] == 'free':
|
541 |
+
trailing = ' &'
|
542 |
+
else:
|
543 |
+
trailing = ''
|
544 |
+
for line in lines:
|
545 |
+
if line.startswith(self._lead['comment']):
|
546 |
+
# comment line
|
547 |
+
if len(line) > 72:
|
548 |
+
pos = line.rfind(" ", 6, 72)
|
549 |
+
if pos == -1:
|
550 |
+
pos = 72
|
551 |
+
hunk = line[:pos]
|
552 |
+
line = line[pos:].lstrip()
|
553 |
+
result.append(hunk)
|
554 |
+
while line:
|
555 |
+
pos = line.rfind(" ", 0, 66)
|
556 |
+
if pos == -1 or len(line) < 66:
|
557 |
+
pos = 66
|
558 |
+
hunk = line[:pos]
|
559 |
+
line = line[pos:].lstrip()
|
560 |
+
result.append("%s%s" % (self._lead['comment'], hunk))
|
561 |
+
else:
|
562 |
+
result.append(line)
|
563 |
+
elif line.startswith(self._lead['code']):
|
564 |
+
# code line
|
565 |
+
pos = split_pos_code(line, 72)
|
566 |
+
hunk = line[:pos].rstrip()
|
567 |
+
line = line[pos:].lstrip()
|
568 |
+
if line:
|
569 |
+
hunk += trailing
|
570 |
+
result.append(hunk)
|
571 |
+
while line:
|
572 |
+
pos = split_pos_code(line, 65)
|
573 |
+
hunk = line[:pos].rstrip()
|
574 |
+
line = line[pos:].lstrip()
|
575 |
+
if line:
|
576 |
+
hunk += trailing
|
577 |
+
result.append("%s%s" % (self._lead['cont'], hunk))
|
578 |
+
else:
|
579 |
+
result.append(line)
|
580 |
+
return result
|
581 |
+
|
582 |
+
def indent_code(self, code):
|
583 |
+
"""Accepts a string of code or a list of code lines"""
|
584 |
+
if isinstance(code, str):
|
585 |
+
code_lines = self.indent_code(code.splitlines(True))
|
586 |
+
return ''.join(code_lines)
|
587 |
+
|
588 |
+
free = self._settings['source_format'] == 'free'
|
589 |
+
code = [ line.lstrip(' \t') for line in code ]
|
590 |
+
|
591 |
+
inc_keyword = ('do ', 'if(', 'if ', 'do\n', 'else', 'program', 'interface')
|
592 |
+
dec_keyword = ('end do', 'enddo', 'end if', 'endif', 'else', 'end program', 'end interface')
|
593 |
+
|
594 |
+
increase = [ int(any(map(line.startswith, inc_keyword)))
|
595 |
+
for line in code ]
|
596 |
+
decrease = [ int(any(map(line.startswith, dec_keyword)))
|
597 |
+
for line in code ]
|
598 |
+
continuation = [ int(any(map(line.endswith, ['&', '&\n'])))
|
599 |
+
for line in code ]
|
600 |
+
|
601 |
+
level = 0
|
602 |
+
cont_padding = 0
|
603 |
+
tabwidth = 3
|
604 |
+
new_code = []
|
605 |
+
for i, line in enumerate(code):
|
606 |
+
if line in ('', '\n'):
|
607 |
+
new_code.append(line)
|
608 |
+
continue
|
609 |
+
level -= decrease[i]
|
610 |
+
|
611 |
+
if free:
|
612 |
+
padding = " "*(level*tabwidth + cont_padding)
|
613 |
+
else:
|
614 |
+
padding = " "*level*tabwidth
|
615 |
+
|
616 |
+
line = "%s%s" % (padding, line)
|
617 |
+
if not free:
|
618 |
+
line = self._pad_leading_columns([line])[0]
|
619 |
+
|
620 |
+
new_code.append(line)
|
621 |
+
|
622 |
+
if continuation[i]:
|
623 |
+
cont_padding = 2*tabwidth
|
624 |
+
else:
|
625 |
+
cont_padding = 0
|
626 |
+
level += increase[i]
|
627 |
+
|
628 |
+
if not free:
|
629 |
+
return self._wrap_fortran(new_code)
|
630 |
+
return new_code
|
631 |
+
|
632 |
+
def _print_GoTo(self, goto):
|
633 |
+
if goto.expr: # computed goto
|
634 |
+
return "go to ({labels}), {expr}".format(
|
635 |
+
labels=', '.join((self._print(arg) for arg in goto.labels)),
|
636 |
+
expr=self._print(goto.expr)
|
637 |
+
)
|
638 |
+
else:
|
639 |
+
lbl, = goto.labels
|
640 |
+
return "go to %s" % self._print(lbl)
|
641 |
+
|
642 |
+
def _print_Program(self, prog):
|
643 |
+
return (
|
644 |
+
"program {name}\n"
|
645 |
+
"{body}\n"
|
646 |
+
"end program\n"
|
647 |
+
).format(**prog.kwargs(apply=lambda arg: self._print(arg)))
|
648 |
+
|
649 |
+
def _print_Module(self, mod):
|
650 |
+
return (
|
651 |
+
"module {name}\n"
|
652 |
+
"{declarations}\n"
|
653 |
+
"\ncontains\n\n"
|
654 |
+
"{definitions}\n"
|
655 |
+
"end module\n"
|
656 |
+
).format(**mod.kwargs(apply=lambda arg: self._print(arg)))
|
657 |
+
|
658 |
+
def _print_Stream(self, strm):
|
659 |
+
if strm.name == 'stdout' and self._settings["standard"] >= 2003:
|
660 |
+
self.module_uses['iso_c_binding'].add('stdint=>input_unit')
|
661 |
+
return 'input_unit'
|
662 |
+
elif strm.name == 'stderr' and self._settings["standard"] >= 2003:
|
663 |
+
self.module_uses['iso_c_binding'].add('stdint=>error_unit')
|
664 |
+
return 'error_unit'
|
665 |
+
else:
|
666 |
+
if strm.name == 'stdout':
|
667 |
+
return '*'
|
668 |
+
else:
|
669 |
+
return strm.name
|
670 |
+
|
671 |
+
def _print_Print(self, ps):
|
672 |
+
if ps.format_string != None: # Must be '!= None', cannot be 'is not None'
|
673 |
+
fmt = self._print(ps.format_string)
|
674 |
+
else:
|
675 |
+
fmt = "*"
|
676 |
+
return "print {fmt}, {iolist}".format(fmt=fmt, iolist=', '.join(
|
677 |
+
(self._print(arg) for arg in ps.print_args)))
|
678 |
+
|
679 |
+
def _print_Return(self, rs):
|
680 |
+
arg, = rs.args
|
681 |
+
return "{result_name} = {arg}".format(
|
682 |
+
result_name=self._context.get('result_name', 'sympy_result'),
|
683 |
+
arg=self._print(arg)
|
684 |
+
)
|
685 |
+
|
686 |
+
def _print_FortranReturn(self, frs):
|
687 |
+
arg, = frs.args
|
688 |
+
if arg:
|
689 |
+
return 'return %s' % self._print(arg)
|
690 |
+
else:
|
691 |
+
return 'return'
|
692 |
+
|
693 |
+
def _head(self, entity, fp, **kwargs):
|
694 |
+
bind_C_params = fp.attr_params('bind_C')
|
695 |
+
if bind_C_params is None:
|
696 |
+
bind = ''
|
697 |
+
else:
|
698 |
+
bind = ' bind(C, name="%s")' % bind_C_params[0] if bind_C_params else ' bind(C)'
|
699 |
+
result_name = self._settings.get('result_name', None)
|
700 |
+
return (
|
701 |
+
"{entity}{name}({arg_names}){result}{bind}\n"
|
702 |
+
"{arg_declarations}"
|
703 |
+
).format(
|
704 |
+
entity=entity,
|
705 |
+
name=self._print(fp.name),
|
706 |
+
arg_names=', '.join([self._print(arg.symbol) for arg in fp.parameters]),
|
707 |
+
result=(' result(%s)' % result_name) if result_name else '',
|
708 |
+
bind=bind,
|
709 |
+
arg_declarations='\n'.join((self._print(Declaration(arg)) for arg in fp.parameters))
|
710 |
+
)
|
711 |
+
|
712 |
+
def _print_FunctionPrototype(self, fp):
|
713 |
+
entity = "{} function ".format(self._print(fp.return_type))
|
714 |
+
return (
|
715 |
+
"interface\n"
|
716 |
+
"{function_head}\n"
|
717 |
+
"end function\n"
|
718 |
+
"end interface"
|
719 |
+
).format(function_head=self._head(entity, fp))
|
720 |
+
|
721 |
+
def _print_FunctionDefinition(self, fd):
|
722 |
+
if elemental in fd.attrs:
|
723 |
+
prefix = 'elemental '
|
724 |
+
elif pure in fd.attrs:
|
725 |
+
prefix = 'pure '
|
726 |
+
else:
|
727 |
+
prefix = ''
|
728 |
+
|
729 |
+
entity = "{} function ".format(self._print(fd.return_type))
|
730 |
+
with printer_context(self, result_name=fd.name):
|
731 |
+
return (
|
732 |
+
"{prefix}{function_head}\n"
|
733 |
+
"{body}\n"
|
734 |
+
"end function\n"
|
735 |
+
).format(
|
736 |
+
prefix=prefix,
|
737 |
+
function_head=self._head(entity, fd),
|
738 |
+
body=self._print(fd.body)
|
739 |
+
)
|
740 |
+
|
741 |
+
def _print_Subroutine(self, sub):
|
742 |
+
return (
|
743 |
+
'{subroutine_head}\n'
|
744 |
+
'{body}\n'
|
745 |
+
'end subroutine\n'
|
746 |
+
).format(
|
747 |
+
subroutine_head=self._head('subroutine ', sub),
|
748 |
+
body=self._print(sub.body)
|
749 |
+
)
|
750 |
+
|
751 |
+
def _print_SubroutineCall(self, scall):
|
752 |
+
return 'call {name}({args})'.format(
|
753 |
+
name=self._print(scall.name),
|
754 |
+
args=', '.join((self._print(arg) for arg in scall.subroutine_args))
|
755 |
+
)
|
756 |
+
|
757 |
+
def _print_use_rename(self, rnm):
|
758 |
+
return "%s => %s" % tuple((self._print(arg) for arg in rnm.args))
|
759 |
+
|
760 |
+
def _print_use(self, use):
|
761 |
+
result = 'use %s' % self._print(use.namespace)
|
762 |
+
if use.rename != None: # Must be '!= None', cannot be 'is not None'
|
763 |
+
result += ', ' + ', '.join([self._print(rnm) for rnm in use.rename])
|
764 |
+
if use.only != None: # Must be '!= None', cannot be 'is not None'
|
765 |
+
result += ', only: ' + ', '.join([self._print(nly) for nly in use.only])
|
766 |
+
return result
|
767 |
+
|
768 |
+
def _print_BreakToken(self, _):
|
769 |
+
return 'exit'
|
770 |
+
|
771 |
+
def _print_ContinueToken(self, _):
|
772 |
+
return 'cycle'
|
773 |
+
|
774 |
+
def _print_ArrayConstructor(self, ac):
|
775 |
+
fmtstr = "[%s]" if self._settings["standard"] >= 2003 else '(/%s/)'
|
776 |
+
return fmtstr % ', '.join((self._print(arg) for arg in ac.elements))
|
777 |
+
|
778 |
+
def _print_ArrayElement(self, elem):
|
779 |
+
return '{symbol}({idxs})'.format(
|
780 |
+
symbol=self._print(elem.name),
|
781 |
+
idxs=', '.join((self._print(arg) for arg in elem.indices))
|
782 |
+
)
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/glsl.py
ADDED
@@ -0,0 +1,557 @@
|
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|
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|
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|
|
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|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
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|
|
|
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|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
from __future__ import annotations
|
2 |
+
|
3 |
+
from sympy.core import Basic, S
|
4 |
+
from sympy.core.function import Lambda
|
5 |
+
from sympy.core.numbers import equal_valued
|
6 |
+
from sympy.printing.codeprinter import CodePrinter
|
7 |
+
from sympy.printing.precedence import precedence
|
8 |
+
from functools import reduce
|
9 |
+
|
10 |
+
known_functions = {
|
11 |
+
'Abs': 'abs',
|
12 |
+
'sin': 'sin',
|
13 |
+
'cos': 'cos',
|
14 |
+
'tan': 'tan',
|
15 |
+
'acos': 'acos',
|
16 |
+
'asin': 'asin',
|
17 |
+
'atan': 'atan',
|
18 |
+
'atan2': 'atan',
|
19 |
+
'ceiling': 'ceil',
|
20 |
+
'floor': 'floor',
|
21 |
+
'sign': 'sign',
|
22 |
+
'exp': 'exp',
|
23 |
+
'log': 'log',
|
24 |
+
'add': 'add',
|
25 |
+
'sub': 'sub',
|
26 |
+
'mul': 'mul',
|
27 |
+
'pow': 'pow'
|
28 |
+
}
|
29 |
+
|
30 |
+
class GLSLPrinter(CodePrinter):
|
31 |
+
"""
|
32 |
+
Rudimentary, generic GLSL printing tools.
|
33 |
+
|
34 |
+
Additional settings:
|
35 |
+
'use_operators': Boolean (should the printer use operators for +,-,*, or functions?)
|
36 |
+
"""
|
37 |
+
_not_supported: set[Basic] = set()
|
38 |
+
printmethod = "_glsl"
|
39 |
+
language = "GLSL"
|
40 |
+
|
41 |
+
_default_settings = {
|
42 |
+
'use_operators': True,
|
43 |
+
'zero': 0,
|
44 |
+
'mat_nested': False,
|
45 |
+
'mat_separator': ',\n',
|
46 |
+
'mat_transpose': False,
|
47 |
+
'array_type': 'float',
|
48 |
+
'glsl_types': True,
|
49 |
+
|
50 |
+
'order': None,
|
51 |
+
'full_prec': 'auto',
|
52 |
+
'precision': 9,
|
53 |
+
'user_functions': {},
|
54 |
+
'human': True,
|
55 |
+
'allow_unknown_functions': False,
|
56 |
+
'contract': True,
|
57 |
+
'error_on_reserved': False,
|
58 |
+
'reserved_word_suffix': '_',
|
59 |
+
}
|
60 |
+
|
61 |
+
def __init__(self, settings={}):
|
62 |
+
CodePrinter.__init__(self, settings)
|
63 |
+
self.known_functions = dict(known_functions)
|
64 |
+
userfuncs = settings.get('user_functions', {})
|
65 |
+
self.known_functions.update(userfuncs)
|
66 |
+
|
67 |
+
def _rate_index_position(self, p):
|
68 |
+
return p*5
|
69 |
+
|
70 |
+
def _get_statement(self, codestring):
|
71 |
+
return "%s;" % codestring
|
72 |
+
|
73 |
+
def _get_comment(self, text):
|
74 |
+
return "// {}".format(text)
|
75 |
+
|
76 |
+
def _declare_number_const(self, name, value):
|
77 |
+
return "float {} = {};".format(name, value)
|
78 |
+
|
79 |
+
def _format_code(self, lines):
|
80 |
+
return self.indent_code(lines)
|
81 |
+
|
82 |
+
def indent_code(self, code):
|
83 |
+
"""Accepts a string of code or a list of code lines"""
|
84 |
+
|
85 |
+
if isinstance(code, str):
|
86 |
+
code_lines = self.indent_code(code.splitlines(True))
|
87 |
+
return ''.join(code_lines)
|
88 |
+
|
89 |
+
tab = " "
|
90 |
+
inc_token = ('{', '(', '{\n', '(\n')
|
91 |
+
dec_token = ('}', ')')
|
92 |
+
|
93 |
+
code = [line.lstrip(' \t') for line in code]
|
94 |
+
|
95 |
+
increase = [int(any(map(line.endswith, inc_token))) for line in code]
|
96 |
+
decrease = [int(any(map(line.startswith, dec_token))) for line in code]
|
97 |
+
|
98 |
+
pretty = []
|
99 |
+
level = 0
|
100 |
+
for n, line in enumerate(code):
|
101 |
+
if line in ('', '\n'):
|
102 |
+
pretty.append(line)
|
103 |
+
continue
|
104 |
+
level -= decrease[n]
|
105 |
+
pretty.append("%s%s" % (tab*level, line))
|
106 |
+
level += increase[n]
|
107 |
+
return pretty
|
108 |
+
|
109 |
+
def _print_MatrixBase(self, mat):
|
110 |
+
mat_separator = self._settings['mat_separator']
|
111 |
+
mat_transpose = self._settings['mat_transpose']
|
112 |
+
column_vector = (mat.rows == 1) if mat_transpose else (mat.cols == 1)
|
113 |
+
A = mat.transpose() if mat_transpose != column_vector else mat
|
114 |
+
|
115 |
+
glsl_types = self._settings['glsl_types']
|
116 |
+
array_type = self._settings['array_type']
|
117 |
+
array_size = A.cols*A.rows
|
118 |
+
array_constructor = "{}[{}]".format(array_type, array_size)
|
119 |
+
|
120 |
+
if A.cols == 1:
|
121 |
+
return self._print(A[0]);
|
122 |
+
if A.rows <= 4 and A.cols <= 4 and glsl_types:
|
123 |
+
if A.rows == 1:
|
124 |
+
return "vec{}{}".format(
|
125 |
+
A.cols, A.table(self,rowstart='(',rowend=')')
|
126 |
+
)
|
127 |
+
elif A.rows == A.cols:
|
128 |
+
return "mat{}({})".format(
|
129 |
+
A.rows, A.table(self,rowsep=', ',
|
130 |
+
rowstart='',rowend='')
|
131 |
+
)
|
132 |
+
else:
|
133 |
+
return "mat{}x{}({})".format(
|
134 |
+
A.cols, A.rows,
|
135 |
+
A.table(self,rowsep=', ',
|
136 |
+
rowstart='',rowend='')
|
137 |
+
)
|
138 |
+
elif S.One in A.shape:
|
139 |
+
return "{}({})".format(
|
140 |
+
array_constructor,
|
141 |
+
A.table(self,rowsep=mat_separator,rowstart='',rowend='')
|
142 |
+
)
|
143 |
+
elif not self._settings['mat_nested']:
|
144 |
+
return "{}(\n{}\n) /* a {}x{} matrix */".format(
|
145 |
+
array_constructor,
|
146 |
+
A.table(self,rowsep=mat_separator,rowstart='',rowend=''),
|
147 |
+
A.rows, A.cols
|
148 |
+
)
|
149 |
+
elif self._settings['mat_nested']:
|
150 |
+
return "{}[{}][{}](\n{}\n)".format(
|
151 |
+
array_type, A.rows, A.cols,
|
152 |
+
A.table(self,rowsep=mat_separator,rowstart='float[](',rowend=')')
|
153 |
+
)
|
154 |
+
|
155 |
+
def _print_SparseRepMatrix(self, mat):
|
156 |
+
# do not allow sparse matrices to be made dense
|
157 |
+
return self._print_not_supported(mat)
|
158 |
+
|
159 |
+
def _traverse_matrix_indices(self, mat):
|
160 |
+
mat_transpose = self._settings['mat_transpose']
|
161 |
+
if mat_transpose:
|
162 |
+
rows,cols = mat.shape
|
163 |
+
else:
|
164 |
+
cols,rows = mat.shape
|
165 |
+
return ((i, j) for i in range(cols) for j in range(rows))
|
166 |
+
|
167 |
+
def _print_MatrixElement(self, expr):
|
168 |
+
# print('begin _print_MatrixElement')
|
169 |
+
nest = self._settings['mat_nested'];
|
170 |
+
glsl_types = self._settings['glsl_types'];
|
171 |
+
mat_transpose = self._settings['mat_transpose'];
|
172 |
+
if mat_transpose:
|
173 |
+
cols,rows = expr.parent.shape
|
174 |
+
i,j = expr.j,expr.i
|
175 |
+
else:
|
176 |
+
rows,cols = expr.parent.shape
|
177 |
+
i,j = expr.i,expr.j
|
178 |
+
pnt = self._print(expr.parent)
|
179 |
+
if glsl_types and ((rows <= 4 and cols <=4) or nest):
|
180 |
+
return "{}[{}][{}]".format(pnt, i, j)
|
181 |
+
else:
|
182 |
+
return "{}[{}]".format(pnt, i + j*rows)
|
183 |
+
|
184 |
+
def _print_list(self, expr):
|
185 |
+
l = ', '.join(self._print(item) for item in expr)
|
186 |
+
glsl_types = self._settings['glsl_types']
|
187 |
+
array_type = self._settings['array_type']
|
188 |
+
array_size = len(expr)
|
189 |
+
array_constructor = '{}[{}]'.format(array_type, array_size)
|
190 |
+
|
191 |
+
if array_size <= 4 and glsl_types:
|
192 |
+
return 'vec{}({})'.format(array_size, l)
|
193 |
+
else:
|
194 |
+
return '{}({})'.format(array_constructor, l)
|
195 |
+
|
196 |
+
_print_tuple = _print_list
|
197 |
+
_print_Tuple = _print_list
|
198 |
+
|
199 |
+
def _get_loop_opening_ending(self, indices):
|
200 |
+
open_lines = []
|
201 |
+
close_lines = []
|
202 |
+
loopstart = "for (int %(varble)s=%(start)s; %(varble)s<%(end)s; %(varble)s++){"
|
203 |
+
for i in indices:
|
204 |
+
# GLSL arrays start at 0 and end at dimension-1
|
205 |
+
open_lines.append(loopstart % {
|
206 |
+
'varble': self._print(i.label),
|
207 |
+
'start': self._print(i.lower),
|
208 |
+
'end': self._print(i.upper + 1)})
|
209 |
+
close_lines.append("}")
|
210 |
+
return open_lines, close_lines
|
211 |
+
|
212 |
+
def _print_Function_with_args(self, func, func_args):
|
213 |
+
if func in self.known_functions:
|
214 |
+
cond_func = self.known_functions[func]
|
215 |
+
func = None
|
216 |
+
if isinstance(cond_func, str):
|
217 |
+
func = cond_func
|
218 |
+
else:
|
219 |
+
for cond, func in cond_func:
|
220 |
+
if cond(func_args):
|
221 |
+
break
|
222 |
+
if func is not None:
|
223 |
+
try:
|
224 |
+
return func(*[self.parenthesize(item, 0) for item in func_args])
|
225 |
+
except TypeError:
|
226 |
+
return '{}({})'.format(func, self.stringify(func_args, ", "))
|
227 |
+
elif isinstance(func, Lambda):
|
228 |
+
# inlined function
|
229 |
+
return self._print(func(*func_args))
|
230 |
+
else:
|
231 |
+
return self._print_not_supported(func)
|
232 |
+
|
233 |
+
def _print_Piecewise(self, expr):
|
234 |
+
from sympy.codegen.ast import Assignment
|
235 |
+
if expr.args[-1].cond != True:
|
236 |
+
# We need the last conditional to be a True, otherwise the resulting
|
237 |
+
# function may not return a result.
|
238 |
+
raise ValueError("All Piecewise expressions must contain an "
|
239 |
+
"(expr, True) statement to be used as a default "
|
240 |
+
"condition. Without one, the generated "
|
241 |
+
"expression may not evaluate to anything under "
|
242 |
+
"some condition.")
|
243 |
+
lines = []
|
244 |
+
if expr.has(Assignment):
|
245 |
+
for i, (e, c) in enumerate(expr.args):
|
246 |
+
if i == 0:
|
247 |
+
lines.append("if (%s) {" % self._print(c))
|
248 |
+
elif i == len(expr.args) - 1 and c == True:
|
249 |
+
lines.append("else {")
|
250 |
+
else:
|
251 |
+
lines.append("else if (%s) {" % self._print(c))
|
252 |
+
code0 = self._print(e)
|
253 |
+
lines.append(code0)
|
254 |
+
lines.append("}")
|
255 |
+
return "\n".join(lines)
|
256 |
+
else:
|
257 |
+
# The piecewise was used in an expression, need to do inline
|
258 |
+
# operators. This has the downside that inline operators will
|
259 |
+
# not work for statements that span multiple lines (Matrix or
|
260 |
+
# Indexed expressions).
|
261 |
+
ecpairs = ["((%s) ? (\n%s\n)\n" % (self._print(c),
|
262 |
+
self._print(e))
|
263 |
+
for e, c in expr.args[:-1]]
|
264 |
+
last_line = ": (\n%s\n)" % self._print(expr.args[-1].expr)
|
265 |
+
return ": ".join(ecpairs) + last_line + " ".join([")"*len(ecpairs)])
|
266 |
+
|
267 |
+
def _print_Idx(self, expr):
|
268 |
+
return self._print(expr.label)
|
269 |
+
|
270 |
+
def _print_Indexed(self, expr):
|
271 |
+
# calculate index for 1d array
|
272 |
+
dims = expr.shape
|
273 |
+
elem = S.Zero
|
274 |
+
offset = S.One
|
275 |
+
for i in reversed(range(expr.rank)):
|
276 |
+
elem += expr.indices[i]*offset
|
277 |
+
offset *= dims[i]
|
278 |
+
return "{}[{}]".format(
|
279 |
+
self._print(expr.base.label),
|
280 |
+
self._print(elem)
|
281 |
+
)
|
282 |
+
|
283 |
+
def _print_Pow(self, expr):
|
284 |
+
PREC = precedence(expr)
|
285 |
+
if equal_valued(expr.exp, -1):
|
286 |
+
return '1.0/%s' % (self.parenthesize(expr.base, PREC))
|
287 |
+
elif equal_valued(expr.exp, 0.5):
|
288 |
+
return 'sqrt(%s)' % self._print(expr.base)
|
289 |
+
else:
|
290 |
+
try:
|
291 |
+
e = self._print(float(expr.exp))
|
292 |
+
except TypeError:
|
293 |
+
e = self._print(expr.exp)
|
294 |
+
return self._print_Function_with_args('pow', (
|
295 |
+
self._print(expr.base),
|
296 |
+
e
|
297 |
+
))
|
298 |
+
|
299 |
+
def _print_int(self, expr):
|
300 |
+
return str(float(expr))
|
301 |
+
|
302 |
+
def _print_Rational(self, expr):
|
303 |
+
return "{}.0/{}.0".format(expr.p, expr.q)
|
304 |
+
|
305 |
+
def _print_Relational(self, expr):
|
306 |
+
lhs_code = self._print(expr.lhs)
|
307 |
+
rhs_code = self._print(expr.rhs)
|
308 |
+
op = expr.rel_op
|
309 |
+
return "{} {} {}".format(lhs_code, op, rhs_code)
|
310 |
+
|
311 |
+
def _print_Add(self, expr, order=None):
|
312 |
+
if self._settings['use_operators']:
|
313 |
+
return CodePrinter._print_Add(self, expr, order=order)
|
314 |
+
|
315 |
+
terms = expr.as_ordered_terms()
|
316 |
+
|
317 |
+
def partition(p,l):
|
318 |
+
return reduce(lambda x, y: (x[0]+[y], x[1]) if p(y) else (x[0], x[1]+[y]), l, ([], []))
|
319 |
+
def add(a,b):
|
320 |
+
return self._print_Function_with_args('add', (a, b))
|
321 |
+
# return self.known_functions['add']+'(%s, %s)' % (a,b)
|
322 |
+
neg, pos = partition(lambda arg: arg.could_extract_minus_sign(), terms)
|
323 |
+
if pos:
|
324 |
+
s = pos = reduce(lambda a,b: add(a,b), (self._print(t) for t in pos))
|
325 |
+
else:
|
326 |
+
s = pos = self._print(self._settings['zero'])
|
327 |
+
|
328 |
+
if neg:
|
329 |
+
# sum the absolute values of the negative terms
|
330 |
+
neg = reduce(lambda a,b: add(a,b), (self._print(-n) for n in neg))
|
331 |
+
# then subtract them from the positive terms
|
332 |
+
s = self._print_Function_with_args('sub', (pos,neg))
|
333 |
+
# s = self.known_functions['sub']+'(%s, %s)' % (pos,neg)
|
334 |
+
return s
|
335 |
+
|
336 |
+
def _print_Mul(self, expr, **kwargs):
|
337 |
+
if self._settings['use_operators']:
|
338 |
+
return CodePrinter._print_Mul(self, expr, **kwargs)
|
339 |
+
terms = expr.as_ordered_factors()
|
340 |
+
def mul(a,b):
|
341 |
+
# return self.known_functions['mul']+'(%s, %s)' % (a,b)
|
342 |
+
return self._print_Function_with_args('mul', (a,b))
|
343 |
+
|
344 |
+
s = reduce(lambda a,b: mul(a,b), (self._print(t) for t in terms))
|
345 |
+
return s
|
346 |
+
|
347 |
+
def glsl_code(expr,assign_to=None,**settings):
|
348 |
+
"""Converts an expr to a string of GLSL code
|
349 |
+
|
350 |
+
Parameters
|
351 |
+
==========
|
352 |
+
|
353 |
+
expr : Expr
|
354 |
+
A SymPy expression to be converted.
|
355 |
+
assign_to : optional
|
356 |
+
When given, the argument is used for naming the variable or variables
|
357 |
+
to which the expression is assigned. Can be a string, ``Symbol``,
|
358 |
+
``MatrixSymbol`` or ``Indexed`` type object. In cases where ``expr``
|
359 |
+
would be printed as an array, a list of string or ``Symbol`` objects
|
360 |
+
can also be passed.
|
361 |
+
|
362 |
+
This is helpful in case of line-wrapping, or for expressions that
|
363 |
+
generate multi-line statements. It can also be used to spread an array-like
|
364 |
+
expression into multiple assignments.
|
365 |
+
use_operators: bool, optional
|
366 |
+
If set to False, then *,/,+,- operators will be replaced with functions
|
367 |
+
mul, add, and sub, which must be implemented by the user, e.g. for
|
368 |
+
implementing non-standard rings or emulated quad/octal precision.
|
369 |
+
[default=True]
|
370 |
+
glsl_types: bool, optional
|
371 |
+
Set this argument to ``False`` in order to avoid using the ``vec`` and ``mat``
|
372 |
+
types. The printer will instead use arrays (or nested arrays).
|
373 |
+
[default=True]
|
374 |
+
mat_nested: bool, optional
|
375 |
+
GLSL version 4.3 and above support nested arrays (arrays of arrays). Set this to ``True``
|
376 |
+
to render matrices as nested arrays.
|
377 |
+
[default=False]
|
378 |
+
mat_separator: str, optional
|
379 |
+
By default, matrices are rendered with newlines using this separator,
|
380 |
+
making them easier to read, but less compact. By removing the newline
|
381 |
+
this option can be used to make them more vertically compact.
|
382 |
+
[default=',\n']
|
383 |
+
mat_transpose: bool, optional
|
384 |
+
GLSL's matrix multiplication implementation assumes column-major indexing.
|
385 |
+
By default, this printer ignores that convention. Setting this option to
|
386 |
+
``True`` transposes all matrix output.
|
387 |
+
[default=False]
|
388 |
+
array_type: str, optional
|
389 |
+
The GLSL array constructor type.
|
390 |
+
[default='float']
|
391 |
+
precision : integer, optional
|
392 |
+
The precision for numbers such as pi [default=15].
|
393 |
+
user_functions : dict, optional
|
394 |
+
A dictionary where keys are ``FunctionClass`` instances and values are
|
395 |
+
their string representations. Alternatively, the dictionary value can
|
396 |
+
be a list of tuples i.e. [(argument_test, js_function_string)]. See
|
397 |
+
below for examples.
|
398 |
+
human : bool, optional
|
399 |
+
If True, the result is a single string that may contain some constant
|
400 |
+
declarations for the number symbols. If False, the same information is
|
401 |
+
returned in a tuple of (symbols_to_declare, not_supported_functions,
|
402 |
+
code_text). [default=True].
|
403 |
+
contract: bool, optional
|
404 |
+
If True, ``Indexed`` instances are assumed to obey tensor contraction
|
405 |
+
rules and the corresponding nested loops over indices are generated.
|
406 |
+
Setting contract=False will not generate loops, instead the user is
|
407 |
+
responsible to provide values for the indices in the code.
|
408 |
+
[default=True].
|
409 |
+
|
410 |
+
Examples
|
411 |
+
========
|
412 |
+
|
413 |
+
>>> from sympy import glsl_code, symbols, Rational, sin, ceiling, Abs
|
414 |
+
>>> x, tau = symbols("x, tau")
|
415 |
+
>>> glsl_code((2*tau)**Rational(7, 2))
|
416 |
+
'8*sqrt(2)*pow(tau, 3.5)'
|
417 |
+
>>> glsl_code(sin(x), assign_to="float y")
|
418 |
+
'float y = sin(x);'
|
419 |
+
|
420 |
+
Various GLSL types are supported:
|
421 |
+
>>> from sympy import Matrix, glsl_code
|
422 |
+
>>> glsl_code(Matrix([1,2,3]))
|
423 |
+
'vec3(1, 2, 3)'
|
424 |
+
|
425 |
+
>>> glsl_code(Matrix([[1, 2],[3, 4]]))
|
426 |
+
'mat2(1, 2, 3, 4)'
|
427 |
+
|
428 |
+
Pass ``mat_transpose = True`` to switch to column-major indexing:
|
429 |
+
>>> glsl_code(Matrix([[1, 2],[3, 4]]), mat_transpose = True)
|
430 |
+
'mat2(1, 3, 2, 4)'
|
431 |
+
|
432 |
+
By default, larger matrices get collapsed into float arrays:
|
433 |
+
>>> print(glsl_code( Matrix([[1,2,3,4,5],[6,7,8,9,10]]) ))
|
434 |
+
float[10](
|
435 |
+
1, 2, 3, 4, 5,
|
436 |
+
6, 7, 8, 9, 10
|
437 |
+
) /* a 2x5 matrix */
|
438 |
+
|
439 |
+
The type of array constructor used to print GLSL arrays can be controlled
|
440 |
+
via the ``array_type`` parameter:
|
441 |
+
>>> glsl_code(Matrix([1,2,3,4,5]), array_type='int')
|
442 |
+
'int[5](1, 2, 3, 4, 5)'
|
443 |
+
|
444 |
+
Passing a list of strings or ``symbols`` to the ``assign_to`` parameter will yield
|
445 |
+
a multi-line assignment for each item in an array-like expression:
|
446 |
+
>>> x_struct_members = symbols('x.a x.b x.c x.d')
|
447 |
+
>>> print(glsl_code(Matrix([1,2,3,4]), assign_to=x_struct_members))
|
448 |
+
x.a = 1;
|
449 |
+
x.b = 2;
|
450 |
+
x.c = 3;
|
451 |
+
x.d = 4;
|
452 |
+
|
453 |
+
This could be useful in cases where it's desirable to modify members of a
|
454 |
+
GLSL ``Struct``. It could also be used to spread items from an array-like
|
455 |
+
expression into various miscellaneous assignments:
|
456 |
+
>>> misc_assignments = ('x[0]', 'x[1]', 'float y', 'float z')
|
457 |
+
>>> print(glsl_code(Matrix([1,2,3,4]), assign_to=misc_assignments))
|
458 |
+
x[0] = 1;
|
459 |
+
x[1] = 2;
|
460 |
+
float y = 3;
|
461 |
+
float z = 4;
|
462 |
+
|
463 |
+
Passing ``mat_nested = True`` instead prints out nested float arrays, which are
|
464 |
+
supported in GLSL 4.3 and above.
|
465 |
+
>>> mat = Matrix([
|
466 |
+
... [ 0, 1, 2],
|
467 |
+
... [ 3, 4, 5],
|
468 |
+
... [ 6, 7, 8],
|
469 |
+
... [ 9, 10, 11],
|
470 |
+
... [12, 13, 14]])
|
471 |
+
>>> print(glsl_code( mat, mat_nested = True ))
|
472 |
+
float[5][3](
|
473 |
+
float[]( 0, 1, 2),
|
474 |
+
float[]( 3, 4, 5),
|
475 |
+
float[]( 6, 7, 8),
|
476 |
+
float[]( 9, 10, 11),
|
477 |
+
float[](12, 13, 14)
|
478 |
+
)
|
479 |
+
|
480 |
+
|
481 |
+
|
482 |
+
Custom printing can be defined for certain types by passing a dictionary of
|
483 |
+
"type" : "function" to the ``user_functions`` kwarg. Alternatively, the
|
484 |
+
dictionary value can be a list of tuples i.e. [(argument_test,
|
485 |
+
js_function_string)].
|
486 |
+
|
487 |
+
>>> custom_functions = {
|
488 |
+
... "ceiling": "CEIL",
|
489 |
+
... "Abs": [(lambda x: not x.is_integer, "fabs"),
|
490 |
+
... (lambda x: x.is_integer, "ABS")]
|
491 |
+
... }
|
492 |
+
>>> glsl_code(Abs(x) + ceiling(x), user_functions=custom_functions)
|
493 |
+
'fabs(x) + CEIL(x)'
|
494 |
+
|
495 |
+
If further control is needed, addition, subtraction, multiplication and
|
496 |
+
division operators can be replaced with ``add``, ``sub``, and ``mul``
|
497 |
+
functions. This is done by passing ``use_operators = False``:
|
498 |
+
|
499 |
+
>>> x,y,z = symbols('x,y,z')
|
500 |
+
>>> glsl_code(x*(y+z), use_operators = False)
|
501 |
+
'mul(x, add(y, z))'
|
502 |
+
>>> glsl_code(x*(y+z*(x-y)**z), use_operators = False)
|
503 |
+
'mul(x, add(y, mul(z, pow(sub(x, y), z))))'
|
504 |
+
|
505 |
+
``Piecewise`` expressions are converted into conditionals. If an
|
506 |
+
``assign_to`` variable is provided an if statement is created, otherwise
|
507 |
+
the ternary operator is used. Note that if the ``Piecewise`` lacks a
|
508 |
+
default term, represented by ``(expr, True)`` then an error will be thrown.
|
509 |
+
This is to prevent generating an expression that may not evaluate to
|
510 |
+
anything.
|
511 |
+
|
512 |
+
>>> from sympy import Piecewise
|
513 |
+
>>> expr = Piecewise((x + 1, x > 0), (x, True))
|
514 |
+
>>> print(glsl_code(expr, tau))
|
515 |
+
if (x > 0) {
|
516 |
+
tau = x + 1;
|
517 |
+
}
|
518 |
+
else {
|
519 |
+
tau = x;
|
520 |
+
}
|
521 |
+
|
522 |
+
Support for loops is provided through ``Indexed`` types. With
|
523 |
+
``contract=True`` these expressions will be turned into loops, whereas
|
524 |
+
``contract=False`` will just print the assignment expression that should be
|
525 |
+
looped over:
|
526 |
+
|
527 |
+
>>> from sympy import Eq, IndexedBase, Idx
|
528 |
+
>>> len_y = 5
|
529 |
+
>>> y = IndexedBase('y', shape=(len_y,))
|
530 |
+
>>> t = IndexedBase('t', shape=(len_y,))
|
531 |
+
>>> Dy = IndexedBase('Dy', shape=(len_y-1,))
|
532 |
+
>>> i = Idx('i', len_y-1)
|
533 |
+
>>> e=Eq(Dy[i], (y[i+1]-y[i])/(t[i+1]-t[i]))
|
534 |
+
>>> glsl_code(e.rhs, assign_to=e.lhs, contract=False)
|
535 |
+
'Dy[i] = (y[i + 1] - y[i])/(t[i + 1] - t[i]);'
|
536 |
+
|
537 |
+
>>> from sympy import Matrix, MatrixSymbol
|
538 |
+
>>> mat = Matrix([x**2, Piecewise((x + 1, x > 0), (x, True)), sin(x)])
|
539 |
+
>>> A = MatrixSymbol('A', 3, 1)
|
540 |
+
>>> print(glsl_code(mat, A))
|
541 |
+
A[0][0] = pow(x, 2.0);
|
542 |
+
if (x > 0) {
|
543 |
+
A[1][0] = x + 1;
|
544 |
+
}
|
545 |
+
else {
|
546 |
+
A[1][0] = x;
|
547 |
+
}
|
548 |
+
A[2][0] = sin(x);
|
549 |
+
"""
|
550 |
+
return GLSLPrinter(settings).doprint(expr,assign_to)
|
551 |
+
|
552 |
+
def print_glsl(expr, **settings):
|
553 |
+
"""Prints the GLSL representation of the given expression.
|
554 |
+
|
555 |
+
See GLSLPrinter init function for settings.
|
556 |
+
"""
|
557 |
+
print(glsl_code(expr, **settings))
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/gtk.py
ADDED
@@ -0,0 +1,16 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
from sympy.printing.mathml import mathml
|
2 |
+
from sympy.utilities.mathml import c2p
|
3 |
+
import tempfile
|
4 |
+
import subprocess
|
5 |
+
|
6 |
+
|
7 |
+
def print_gtk(x, start_viewer=True):
|
8 |
+
"""Print to Gtkmathview, a gtk widget capable of rendering MathML.
|
9 |
+
|
10 |
+
Needs libgtkmathview-bin"""
|
11 |
+
with tempfile.NamedTemporaryFile('w') as file:
|
12 |
+
file.write(c2p(mathml(x), simple=True))
|
13 |
+
file.flush()
|
14 |
+
|
15 |
+
if start_viewer:
|
16 |
+
subprocess.check_call(('mathmlviewer', file.name))
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/jscode.py
ADDED
@@ -0,0 +1,339 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
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|
|
|
|
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|
|
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|
|
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|
|
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|
|
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|
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|
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|
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|
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|
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|
|
|
|
|
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|
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|
|
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|
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|
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|
|
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|
|
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|
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|
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|
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|
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|
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|
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|
|
|
|
|
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|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
|
|
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|
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|
|
|
|
|
|
|
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|
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|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
"""
|
2 |
+
Javascript code printer
|
3 |
+
|
4 |
+
The JavascriptCodePrinter converts single SymPy expressions into single
|
5 |
+
Javascript expressions, using the functions defined in the Javascript
|
6 |
+
Math object where possible.
|
7 |
+
|
8 |
+
"""
|
9 |
+
|
10 |
+
from __future__ import annotations
|
11 |
+
from typing import Any
|
12 |
+
|
13 |
+
from sympy.core import S
|
14 |
+
from sympy.core.numbers import equal_valued
|
15 |
+
from sympy.printing.codeprinter import CodePrinter
|
16 |
+
from sympy.printing.precedence import precedence, PRECEDENCE
|
17 |
+
|
18 |
+
|
19 |
+
# dictionary mapping SymPy function to (argument_conditions, Javascript_function).
|
20 |
+
# Used in JavascriptCodePrinter._print_Function(self)
|
21 |
+
known_functions = {
|
22 |
+
'Abs': 'Math.abs',
|
23 |
+
'acos': 'Math.acos',
|
24 |
+
'acosh': 'Math.acosh',
|
25 |
+
'asin': 'Math.asin',
|
26 |
+
'asinh': 'Math.asinh',
|
27 |
+
'atan': 'Math.atan',
|
28 |
+
'atan2': 'Math.atan2',
|
29 |
+
'atanh': 'Math.atanh',
|
30 |
+
'ceiling': 'Math.ceil',
|
31 |
+
'cos': 'Math.cos',
|
32 |
+
'cosh': 'Math.cosh',
|
33 |
+
'exp': 'Math.exp',
|
34 |
+
'floor': 'Math.floor',
|
35 |
+
'log': 'Math.log',
|
36 |
+
'Max': 'Math.max',
|
37 |
+
'Min': 'Math.min',
|
38 |
+
'sign': 'Math.sign',
|
39 |
+
'sin': 'Math.sin',
|
40 |
+
'sinh': 'Math.sinh',
|
41 |
+
'tan': 'Math.tan',
|
42 |
+
'tanh': 'Math.tanh',
|
43 |
+
}
|
44 |
+
|
45 |
+
|
46 |
+
class JavascriptCodePrinter(CodePrinter):
|
47 |
+
""""A Printer to convert Python expressions to strings of JavaScript code
|
48 |
+
"""
|
49 |
+
printmethod = '_javascript'
|
50 |
+
language = 'JavaScript'
|
51 |
+
|
52 |
+
_default_settings: dict[str, Any] = {
|
53 |
+
'order': None,
|
54 |
+
'full_prec': 'auto',
|
55 |
+
'precision': 17,
|
56 |
+
'user_functions': {},
|
57 |
+
'human': True,
|
58 |
+
'allow_unknown_functions': False,
|
59 |
+
'contract': True,
|
60 |
+
}
|
61 |
+
|
62 |
+
def __init__(self, settings={}):
|
63 |
+
CodePrinter.__init__(self, settings)
|
64 |
+
self.known_functions = dict(known_functions)
|
65 |
+
userfuncs = settings.get('user_functions', {})
|
66 |
+
self.known_functions.update(userfuncs)
|
67 |
+
|
68 |
+
def _rate_index_position(self, p):
|
69 |
+
return p*5
|
70 |
+
|
71 |
+
def _get_statement(self, codestring):
|
72 |
+
return "%s;" % codestring
|
73 |
+
|
74 |
+
def _get_comment(self, text):
|
75 |
+
return "// {}".format(text)
|
76 |
+
|
77 |
+
def _declare_number_const(self, name, value):
|
78 |
+
return "var {} = {};".format(name, value.evalf(self._settings['precision']))
|
79 |
+
|
80 |
+
def _format_code(self, lines):
|
81 |
+
return self.indent_code(lines)
|
82 |
+
|
83 |
+
def _traverse_matrix_indices(self, mat):
|
84 |
+
rows, cols = mat.shape
|
85 |
+
return ((i, j) for i in range(rows) for j in range(cols))
|
86 |
+
|
87 |
+
def _get_loop_opening_ending(self, indices):
|
88 |
+
open_lines = []
|
89 |
+
close_lines = []
|
90 |
+
loopstart = "for (var %(varble)s=%(start)s; %(varble)s<%(end)s; %(varble)s++){"
|
91 |
+
for i in indices:
|
92 |
+
# Javascript arrays start at 0 and end at dimension-1
|
93 |
+
open_lines.append(loopstart % {
|
94 |
+
'varble': self._print(i.label),
|
95 |
+
'start': self._print(i.lower),
|
96 |
+
'end': self._print(i.upper + 1)})
|
97 |
+
close_lines.append("}")
|
98 |
+
return open_lines, close_lines
|
99 |
+
|
100 |
+
def _print_Pow(self, expr):
|
101 |
+
PREC = precedence(expr)
|
102 |
+
if equal_valued(expr.exp, -1):
|
103 |
+
return '1/%s' % (self.parenthesize(expr.base, PREC))
|
104 |
+
elif equal_valued(expr.exp, 0.5):
|
105 |
+
return 'Math.sqrt(%s)' % self._print(expr.base)
|
106 |
+
elif expr.exp == S.One/3:
|
107 |
+
return 'Math.cbrt(%s)' % self._print(expr.base)
|
108 |
+
else:
|
109 |
+
return 'Math.pow(%s, %s)' % (self._print(expr.base),
|
110 |
+
self._print(expr.exp))
|
111 |
+
|
112 |
+
def _print_Rational(self, expr):
|
113 |
+
p, q = int(expr.p), int(expr.q)
|
114 |
+
return '%d/%d' % (p, q)
|
115 |
+
|
116 |
+
def _print_Mod(self, expr):
|
117 |
+
num, den = expr.args
|
118 |
+
PREC = precedence(expr)
|
119 |
+
snum, sden = [self.parenthesize(arg, PREC) for arg in expr.args]
|
120 |
+
# % is remainder (same sign as numerator), not modulo (same sign as
|
121 |
+
# denominator), in js. Hence, % only works as modulo if both numbers
|
122 |
+
# have the same sign
|
123 |
+
if (num.is_nonnegative and den.is_nonnegative or
|
124 |
+
num.is_nonpositive and den.is_nonpositive):
|
125 |
+
return f"{snum} % {sden}"
|
126 |
+
return f"(({snum} % {sden}) + {sden}) % {sden}"
|
127 |
+
|
128 |
+
def _print_Relational(self, expr):
|
129 |
+
lhs_code = self._print(expr.lhs)
|
130 |
+
rhs_code = self._print(expr.rhs)
|
131 |
+
op = expr.rel_op
|
132 |
+
return "{} {} {}".format(lhs_code, op, rhs_code)
|
133 |
+
|
134 |
+
def _print_Indexed(self, expr):
|
135 |
+
# calculate index for 1d array
|
136 |
+
dims = expr.shape
|
137 |
+
elem = S.Zero
|
138 |
+
offset = S.One
|
139 |
+
for i in reversed(range(expr.rank)):
|
140 |
+
elem += expr.indices[i]*offset
|
141 |
+
offset *= dims[i]
|
142 |
+
return "%s[%s]" % (self._print(expr.base.label), self._print(elem))
|
143 |
+
|
144 |
+
def _print_Idx(self, expr):
|
145 |
+
return self._print(expr.label)
|
146 |
+
|
147 |
+
def _print_Exp1(self, expr):
|
148 |
+
return "Math.E"
|
149 |
+
|
150 |
+
def _print_Pi(self, expr):
|
151 |
+
return 'Math.PI'
|
152 |
+
|
153 |
+
def _print_Infinity(self, expr):
|
154 |
+
return 'Number.POSITIVE_INFINITY'
|
155 |
+
|
156 |
+
def _print_NegativeInfinity(self, expr):
|
157 |
+
return 'Number.NEGATIVE_INFINITY'
|
158 |
+
|
159 |
+
def _print_Piecewise(self, expr):
|
160 |
+
from sympy.codegen.ast import Assignment
|
161 |
+
if expr.args[-1].cond != True:
|
162 |
+
# We need the last conditional to be a True, otherwise the resulting
|
163 |
+
# function may not return a result.
|
164 |
+
raise ValueError("All Piecewise expressions must contain an "
|
165 |
+
"(expr, True) statement to be used as a default "
|
166 |
+
"condition. Without one, the generated "
|
167 |
+
"expression may not evaluate to anything under "
|
168 |
+
"some condition.")
|
169 |
+
lines = []
|
170 |
+
if expr.has(Assignment):
|
171 |
+
for i, (e, c) in enumerate(expr.args):
|
172 |
+
if i == 0:
|
173 |
+
lines.append("if (%s) {" % self._print(c))
|
174 |
+
elif i == len(expr.args) - 1 and c == True:
|
175 |
+
lines.append("else {")
|
176 |
+
else:
|
177 |
+
lines.append("else if (%s) {" % self._print(c))
|
178 |
+
code0 = self._print(e)
|
179 |
+
lines.append(code0)
|
180 |
+
lines.append("}")
|
181 |
+
return "\n".join(lines)
|
182 |
+
else:
|
183 |
+
# The piecewise was used in an expression, need to do inline
|
184 |
+
# operators. This has the downside that inline operators will
|
185 |
+
# not work for statements that span multiple lines (Matrix or
|
186 |
+
# Indexed expressions).
|
187 |
+
ecpairs = ["((%s) ? (\n%s\n)\n" % (self._print(c), self._print(e))
|
188 |
+
for e, c in expr.args[:-1]]
|
189 |
+
last_line = ": (\n%s\n)" % self._print(expr.args[-1].expr)
|
190 |
+
return ": ".join(ecpairs) + last_line + " ".join([")"*len(ecpairs)])
|
191 |
+
|
192 |
+
def _print_MatrixElement(self, expr):
|
193 |
+
return "{}[{}]".format(self.parenthesize(expr.parent,
|
194 |
+
PRECEDENCE["Atom"], strict=True),
|
195 |
+
expr.j + expr.i*expr.parent.shape[1])
|
196 |
+
|
197 |
+
def indent_code(self, code):
|
198 |
+
"""Accepts a string of code or a list of code lines"""
|
199 |
+
|
200 |
+
if isinstance(code, str):
|
201 |
+
code_lines = self.indent_code(code.splitlines(True))
|
202 |
+
return ''.join(code_lines)
|
203 |
+
|
204 |
+
tab = " "
|
205 |
+
inc_token = ('{', '(', '{\n', '(\n')
|
206 |
+
dec_token = ('}', ')')
|
207 |
+
|
208 |
+
code = [ line.lstrip(' \t') for line in code ]
|
209 |
+
|
210 |
+
increase = [ int(any(map(line.endswith, inc_token))) for line in code ]
|
211 |
+
decrease = [ int(any(map(line.startswith, dec_token)))
|
212 |
+
for line in code ]
|
213 |
+
|
214 |
+
pretty = []
|
215 |
+
level = 0
|
216 |
+
for n, line in enumerate(code):
|
217 |
+
if line in ('', '\n'):
|
218 |
+
pretty.append(line)
|
219 |
+
continue
|
220 |
+
level -= decrease[n]
|
221 |
+
pretty.append("%s%s" % (tab*level, line))
|
222 |
+
level += increase[n]
|
223 |
+
return pretty
|
224 |
+
|
225 |
+
|
226 |
+
def jscode(expr, assign_to=None, **settings):
|
227 |
+
"""Converts an expr to a string of javascript code
|
228 |
+
|
229 |
+
Parameters
|
230 |
+
==========
|
231 |
+
|
232 |
+
expr : Expr
|
233 |
+
A SymPy expression to be converted.
|
234 |
+
assign_to : optional
|
235 |
+
When given, the argument is used as the name of the variable to which
|
236 |
+
the expression is assigned. Can be a string, ``Symbol``,
|
237 |
+
``MatrixSymbol``, or ``Indexed`` type. This is helpful in case of
|
238 |
+
line-wrapping, or for expressions that generate multi-line statements.
|
239 |
+
precision : integer, optional
|
240 |
+
The precision for numbers such as pi [default=15].
|
241 |
+
user_functions : dict, optional
|
242 |
+
A dictionary where keys are ``FunctionClass`` instances and values are
|
243 |
+
their string representations. Alternatively, the dictionary value can
|
244 |
+
be a list of tuples i.e. [(argument_test, js_function_string)]. See
|
245 |
+
below for examples.
|
246 |
+
human : bool, optional
|
247 |
+
If True, the result is a single string that may contain some constant
|
248 |
+
declarations for the number symbols. If False, the same information is
|
249 |
+
returned in a tuple of (symbols_to_declare, not_supported_functions,
|
250 |
+
code_text). [default=True].
|
251 |
+
contract: bool, optional
|
252 |
+
If True, ``Indexed`` instances are assumed to obey tensor contraction
|
253 |
+
rules and the corresponding nested loops over indices are generated.
|
254 |
+
Setting contract=False will not generate loops, instead the user is
|
255 |
+
responsible to provide values for the indices in the code.
|
256 |
+
[default=True].
|
257 |
+
|
258 |
+
Examples
|
259 |
+
========
|
260 |
+
|
261 |
+
>>> from sympy import jscode, symbols, Rational, sin, ceiling, Abs
|
262 |
+
>>> x, tau = symbols("x, tau")
|
263 |
+
>>> jscode((2*tau)**Rational(7, 2))
|
264 |
+
'8*Math.sqrt(2)*Math.pow(tau, 7/2)'
|
265 |
+
>>> jscode(sin(x), assign_to="s")
|
266 |
+
's = Math.sin(x);'
|
267 |
+
|
268 |
+
Custom printing can be defined for certain types by passing a dictionary of
|
269 |
+
"type" : "function" to the ``user_functions`` kwarg. Alternatively, the
|
270 |
+
dictionary value can be a list of tuples i.e. [(argument_test,
|
271 |
+
js_function_string)].
|
272 |
+
|
273 |
+
>>> custom_functions = {
|
274 |
+
... "ceiling": "CEIL",
|
275 |
+
... "Abs": [(lambda x: not x.is_integer, "fabs"),
|
276 |
+
... (lambda x: x.is_integer, "ABS")]
|
277 |
+
... }
|
278 |
+
>>> jscode(Abs(x) + ceiling(x), user_functions=custom_functions)
|
279 |
+
'fabs(x) + CEIL(x)'
|
280 |
+
|
281 |
+
``Piecewise`` expressions are converted into conditionals. If an
|
282 |
+
``assign_to`` variable is provided an if statement is created, otherwise
|
283 |
+
the ternary operator is used. Note that if the ``Piecewise`` lacks a
|
284 |
+
default term, represented by ``(expr, True)`` then an error will be thrown.
|
285 |
+
This is to prevent generating an expression that may not evaluate to
|
286 |
+
anything.
|
287 |
+
|
288 |
+
>>> from sympy import Piecewise
|
289 |
+
>>> expr = Piecewise((x + 1, x > 0), (x, True))
|
290 |
+
>>> print(jscode(expr, tau))
|
291 |
+
if (x > 0) {
|
292 |
+
tau = x + 1;
|
293 |
+
}
|
294 |
+
else {
|
295 |
+
tau = x;
|
296 |
+
}
|
297 |
+
|
298 |
+
Support for loops is provided through ``Indexed`` types. With
|
299 |
+
``contract=True`` these expressions will be turned into loops, whereas
|
300 |
+
``contract=False`` will just print the assignment expression that should be
|
301 |
+
looped over:
|
302 |
+
|
303 |
+
>>> from sympy import Eq, IndexedBase, Idx
|
304 |
+
>>> len_y = 5
|
305 |
+
>>> y = IndexedBase('y', shape=(len_y,))
|
306 |
+
>>> t = IndexedBase('t', shape=(len_y,))
|
307 |
+
>>> Dy = IndexedBase('Dy', shape=(len_y-1,))
|
308 |
+
>>> i = Idx('i', len_y-1)
|
309 |
+
>>> e=Eq(Dy[i], (y[i+1]-y[i])/(t[i+1]-t[i]))
|
310 |
+
>>> jscode(e.rhs, assign_to=e.lhs, contract=False)
|
311 |
+
'Dy[i] = (y[i + 1] - y[i])/(t[i + 1] - t[i]);'
|
312 |
+
|
313 |
+
Matrices are also supported, but a ``MatrixSymbol`` of the same dimensions
|
314 |
+
must be provided to ``assign_to``. Note that any expression that can be
|
315 |
+
generated normally can also exist inside a Matrix:
|
316 |
+
|
317 |
+
>>> from sympy import Matrix, MatrixSymbol
|
318 |
+
>>> mat = Matrix([x**2, Piecewise((x + 1, x > 0), (x, True)), sin(x)])
|
319 |
+
>>> A = MatrixSymbol('A', 3, 1)
|
320 |
+
>>> print(jscode(mat, A))
|
321 |
+
A[0] = Math.pow(x, 2);
|
322 |
+
if (x > 0) {
|
323 |
+
A[1] = x + 1;
|
324 |
+
}
|
325 |
+
else {
|
326 |
+
A[1] = x;
|
327 |
+
}
|
328 |
+
A[2] = Math.sin(x);
|
329 |
+
"""
|
330 |
+
|
331 |
+
return JavascriptCodePrinter(settings).doprint(expr, assign_to)
|
332 |
+
|
333 |
+
|
334 |
+
def print_jscode(expr, **settings):
|
335 |
+
"""Prints the Javascript representation of the given expression.
|
336 |
+
|
337 |
+
See jscode for the meaning of the optional arguments.
|
338 |
+
"""
|
339 |
+
print(jscode(expr, **settings))
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/julia.py
ADDED
@@ -0,0 +1,658 @@
|
|
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|
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|
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|
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|
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|
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|
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|
|
|
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|
|
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|
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|
|
|
|
|
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|
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|
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|
|
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|
|
|
|
|
|
|
|
|
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|
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|
|
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|
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|
|
|
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|
|
|
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|
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|
|
|
|
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|
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|
|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
"""
|
2 |
+
Julia code printer
|
3 |
+
|
4 |
+
The `JuliaCodePrinter` converts SymPy expressions into Julia expressions.
|
5 |
+
|
6 |
+
A complete code generator, which uses `julia_code` extensively, can be found
|
7 |
+
in `sympy.utilities.codegen`. The `codegen` module can be used to generate
|
8 |
+
complete source code files.
|
9 |
+
|
10 |
+
"""
|
11 |
+
|
12 |
+
from __future__ import annotations
|
13 |
+
from typing import Any
|
14 |
+
|
15 |
+
from sympy.core import Mul, Pow, S, Rational
|
16 |
+
from sympy.core.mul import _keep_coeff
|
17 |
+
from sympy.core.numbers import equal_valued
|
18 |
+
from sympy.printing.codeprinter import CodePrinter
|
19 |
+
from sympy.printing.precedence import precedence, PRECEDENCE
|
20 |
+
from re import search
|
21 |
+
|
22 |
+
# List of known functions. First, those that have the same name in
|
23 |
+
# SymPy and Julia. This is almost certainly incomplete!
|
24 |
+
known_fcns_src1 = ["sin", "cos", "tan", "cot", "sec", "csc",
|
25 |
+
"asin", "acos", "atan", "acot", "asec", "acsc",
|
26 |
+
"sinh", "cosh", "tanh", "coth", "sech", "csch",
|
27 |
+
"asinh", "acosh", "atanh", "acoth", "asech", "acsch",
|
28 |
+
"sinc", "atan2", "sign", "floor", "log", "exp",
|
29 |
+
"cbrt", "sqrt", "erf", "erfc", "erfi",
|
30 |
+
"factorial", "gamma", "digamma", "trigamma",
|
31 |
+
"polygamma", "beta",
|
32 |
+
"airyai", "airyaiprime", "airybi", "airybiprime",
|
33 |
+
"besselj", "bessely", "besseli", "besselk",
|
34 |
+
"erfinv", "erfcinv"]
|
35 |
+
# These functions have different names ("SymPy": "Julia"), more
|
36 |
+
# generally a mapping to (argument_conditions, julia_function).
|
37 |
+
known_fcns_src2 = {
|
38 |
+
"Abs": "abs",
|
39 |
+
"ceiling": "ceil",
|
40 |
+
"conjugate": "conj",
|
41 |
+
"hankel1": "hankelh1",
|
42 |
+
"hankel2": "hankelh2",
|
43 |
+
"im": "imag",
|
44 |
+
"re": "real"
|
45 |
+
}
|
46 |
+
|
47 |
+
|
48 |
+
class JuliaCodePrinter(CodePrinter):
|
49 |
+
"""
|
50 |
+
A printer to convert expressions to strings of Julia code.
|
51 |
+
"""
|
52 |
+
printmethod = "_julia"
|
53 |
+
language = "Julia"
|
54 |
+
|
55 |
+
_operators = {
|
56 |
+
'and': '&&',
|
57 |
+
'or': '||',
|
58 |
+
'not': '!',
|
59 |
+
}
|
60 |
+
|
61 |
+
_default_settings: dict[str, Any] = {
|
62 |
+
'order': None,
|
63 |
+
'full_prec': 'auto',
|
64 |
+
'precision': 17,
|
65 |
+
'user_functions': {},
|
66 |
+
'human': True,
|
67 |
+
'allow_unknown_functions': False,
|
68 |
+
'contract': True,
|
69 |
+
'inline': True,
|
70 |
+
}
|
71 |
+
# Note: contract is for expressing tensors as loops (if True), or just
|
72 |
+
# assignment (if False). FIXME: this should be looked a more carefully
|
73 |
+
# for Julia.
|
74 |
+
|
75 |
+
def __init__(self, settings={}):
|
76 |
+
super().__init__(settings)
|
77 |
+
self.known_functions = dict(zip(known_fcns_src1, known_fcns_src1))
|
78 |
+
self.known_functions.update(dict(known_fcns_src2))
|
79 |
+
userfuncs = settings.get('user_functions', {})
|
80 |
+
self.known_functions.update(userfuncs)
|
81 |
+
|
82 |
+
|
83 |
+
def _rate_index_position(self, p):
|
84 |
+
return p*5
|
85 |
+
|
86 |
+
|
87 |
+
def _get_statement(self, codestring):
|
88 |
+
return "%s" % codestring
|
89 |
+
|
90 |
+
|
91 |
+
def _get_comment(self, text):
|
92 |
+
return "# {}".format(text)
|
93 |
+
|
94 |
+
|
95 |
+
def _declare_number_const(self, name, value):
|
96 |
+
return "const {} = {}".format(name, value)
|
97 |
+
|
98 |
+
|
99 |
+
def _format_code(self, lines):
|
100 |
+
return self.indent_code(lines)
|
101 |
+
|
102 |
+
|
103 |
+
def _traverse_matrix_indices(self, mat):
|
104 |
+
# Julia uses Fortran order (column-major)
|
105 |
+
rows, cols = mat.shape
|
106 |
+
return ((i, j) for j in range(cols) for i in range(rows))
|
107 |
+
|
108 |
+
|
109 |
+
def _get_loop_opening_ending(self, indices):
|
110 |
+
open_lines = []
|
111 |
+
close_lines = []
|
112 |
+
for i in indices:
|
113 |
+
# Julia arrays start at 1 and end at dimension
|
114 |
+
var, start, stop = map(self._print,
|
115 |
+
[i.label, i.lower + 1, i.upper + 1])
|
116 |
+
open_lines.append("for %s = %s:%s" % (var, start, stop))
|
117 |
+
close_lines.append("end")
|
118 |
+
return open_lines, close_lines
|
119 |
+
|
120 |
+
|
121 |
+
def _print_Mul(self, expr):
|
122 |
+
# print complex numbers nicely in Julia
|
123 |
+
if (expr.is_number and expr.is_imaginary and
|
124 |
+
expr.as_coeff_Mul()[0].is_integer):
|
125 |
+
return "%sim" % self._print(-S.ImaginaryUnit*expr)
|
126 |
+
|
127 |
+
# cribbed from str.py
|
128 |
+
prec = precedence(expr)
|
129 |
+
|
130 |
+
c, e = expr.as_coeff_Mul()
|
131 |
+
if c < 0:
|
132 |
+
expr = _keep_coeff(-c, e)
|
133 |
+
sign = "-"
|
134 |
+
else:
|
135 |
+
sign = ""
|
136 |
+
|
137 |
+
a = [] # items in the numerator
|
138 |
+
b = [] # items that are in the denominator (if any)
|
139 |
+
|
140 |
+
pow_paren = [] # Will collect all pow with more than one base element and exp = -1
|
141 |
+
|
142 |
+
if self.order not in ('old', 'none'):
|
143 |
+
args = expr.as_ordered_factors()
|
144 |
+
else:
|
145 |
+
# use make_args in case expr was something like -x -> x
|
146 |
+
args = Mul.make_args(expr)
|
147 |
+
|
148 |
+
# Gather args for numerator/denominator
|
149 |
+
for item in args:
|
150 |
+
if (item.is_commutative and item.is_Pow and item.exp.is_Rational
|
151 |
+
and item.exp.is_negative):
|
152 |
+
if item.exp != -1:
|
153 |
+
b.append(Pow(item.base, -item.exp, evaluate=False))
|
154 |
+
else:
|
155 |
+
if len(item.args[0].args) != 1 and isinstance(item.base, Mul): # To avoid situations like #14160
|
156 |
+
pow_paren.append(item)
|
157 |
+
b.append(Pow(item.base, -item.exp))
|
158 |
+
elif item.is_Rational and item is not S.Infinity and item.p == 1:
|
159 |
+
# Save the Rational type in julia Unless the numerator is 1.
|
160 |
+
# For example:
|
161 |
+
# julia_code(Rational(3, 7)*x) --> (3 // 7) * x
|
162 |
+
# julia_code(x/3) --> x / 3 but not x * (1 // 3)
|
163 |
+
b.append(Rational(item.q))
|
164 |
+
else:
|
165 |
+
a.append(item)
|
166 |
+
|
167 |
+
a = a or [S.One]
|
168 |
+
|
169 |
+
a_str = [self.parenthesize(x, prec) for x in a]
|
170 |
+
b_str = [self.parenthesize(x, prec) for x in b]
|
171 |
+
|
172 |
+
# To parenthesize Pow with exp = -1 and having more than one Symbol
|
173 |
+
for item in pow_paren:
|
174 |
+
if item.base in b:
|
175 |
+
b_str[b.index(item.base)] = "(%s)" % b_str[b.index(item.base)]
|
176 |
+
|
177 |
+
# from here it differs from str.py to deal with "*" and ".*"
|
178 |
+
def multjoin(a, a_str):
|
179 |
+
# here we probably are assuming the constants will come first
|
180 |
+
r = a_str[0]
|
181 |
+
for i in range(1, len(a)):
|
182 |
+
mulsym = '*' if a[i-1].is_number else '.*'
|
183 |
+
r = "%s %s %s" % (r, mulsym, a_str[i])
|
184 |
+
return r
|
185 |
+
|
186 |
+
if not b:
|
187 |
+
return sign + multjoin(a, a_str)
|
188 |
+
elif len(b) == 1:
|
189 |
+
divsym = '/' if b[0].is_number else './'
|
190 |
+
return "%s %s %s" % (sign+multjoin(a, a_str), divsym, b_str[0])
|
191 |
+
else:
|
192 |
+
divsym = '/' if all(bi.is_number for bi in b) else './'
|
193 |
+
return "%s %s (%s)" % (sign + multjoin(a, a_str), divsym, multjoin(b, b_str))
|
194 |
+
|
195 |
+
def _print_Relational(self, expr):
|
196 |
+
lhs_code = self._print(expr.lhs)
|
197 |
+
rhs_code = self._print(expr.rhs)
|
198 |
+
op = expr.rel_op
|
199 |
+
return "{} {} {}".format(lhs_code, op, rhs_code)
|
200 |
+
|
201 |
+
def _print_Pow(self, expr):
|
202 |
+
powsymbol = '^' if all(x.is_number for x in expr.args) else '.^'
|
203 |
+
|
204 |
+
PREC = precedence(expr)
|
205 |
+
|
206 |
+
if equal_valued(expr.exp, 0.5):
|
207 |
+
return "sqrt(%s)" % self._print(expr.base)
|
208 |
+
|
209 |
+
if expr.is_commutative:
|
210 |
+
if equal_valued(expr.exp, -0.5):
|
211 |
+
sym = '/' if expr.base.is_number else './'
|
212 |
+
return "1 %s sqrt(%s)" % (sym, self._print(expr.base))
|
213 |
+
if equal_valued(expr.exp, -1):
|
214 |
+
sym = '/' if expr.base.is_number else './'
|
215 |
+
return "1 %s %s" % (sym, self.parenthesize(expr.base, PREC))
|
216 |
+
|
217 |
+
return '%s %s %s' % (self.parenthesize(expr.base, PREC), powsymbol,
|
218 |
+
self.parenthesize(expr.exp, PREC))
|
219 |
+
|
220 |
+
|
221 |
+
def _print_MatPow(self, expr):
|
222 |
+
PREC = precedence(expr)
|
223 |
+
return '%s ^ %s' % (self.parenthesize(expr.base, PREC),
|
224 |
+
self.parenthesize(expr.exp, PREC))
|
225 |
+
|
226 |
+
|
227 |
+
def _print_Pi(self, expr):
|
228 |
+
if self._settings["inline"]:
|
229 |
+
return "pi"
|
230 |
+
else:
|
231 |
+
return super()._print_NumberSymbol(expr)
|
232 |
+
|
233 |
+
|
234 |
+
def _print_ImaginaryUnit(self, expr):
|
235 |
+
return "im"
|
236 |
+
|
237 |
+
|
238 |
+
def _print_Exp1(self, expr):
|
239 |
+
if self._settings["inline"]:
|
240 |
+
return "e"
|
241 |
+
else:
|
242 |
+
return super()._print_NumberSymbol(expr)
|
243 |
+
|
244 |
+
|
245 |
+
def _print_EulerGamma(self, expr):
|
246 |
+
if self._settings["inline"]:
|
247 |
+
return "eulergamma"
|
248 |
+
else:
|
249 |
+
return super()._print_NumberSymbol(expr)
|
250 |
+
|
251 |
+
|
252 |
+
def _print_Catalan(self, expr):
|
253 |
+
if self._settings["inline"]:
|
254 |
+
return "catalan"
|
255 |
+
else:
|
256 |
+
return super()._print_NumberSymbol(expr)
|
257 |
+
|
258 |
+
|
259 |
+
def _print_GoldenRatio(self, expr):
|
260 |
+
if self._settings["inline"]:
|
261 |
+
return "golden"
|
262 |
+
else:
|
263 |
+
return super()._print_NumberSymbol(expr)
|
264 |
+
|
265 |
+
|
266 |
+
def _print_Assignment(self, expr):
|
267 |
+
from sympy.codegen.ast import Assignment
|
268 |
+
from sympy.functions.elementary.piecewise import Piecewise
|
269 |
+
from sympy.tensor.indexed import IndexedBase
|
270 |
+
# Copied from codeprinter, but remove special MatrixSymbol treatment
|
271 |
+
lhs = expr.lhs
|
272 |
+
rhs = expr.rhs
|
273 |
+
# We special case assignments that take multiple lines
|
274 |
+
if not self._settings["inline"] and isinstance(expr.rhs, Piecewise):
|
275 |
+
# Here we modify Piecewise so each expression is now
|
276 |
+
# an Assignment, and then continue on the print.
|
277 |
+
expressions = []
|
278 |
+
conditions = []
|
279 |
+
for (e, c) in rhs.args:
|
280 |
+
expressions.append(Assignment(lhs, e))
|
281 |
+
conditions.append(c)
|
282 |
+
temp = Piecewise(*zip(expressions, conditions))
|
283 |
+
return self._print(temp)
|
284 |
+
if self._settings["contract"] and (lhs.has(IndexedBase) or
|
285 |
+
rhs.has(IndexedBase)):
|
286 |
+
# Here we check if there is looping to be done, and if so
|
287 |
+
# print the required loops.
|
288 |
+
return self._doprint_loops(rhs, lhs)
|
289 |
+
else:
|
290 |
+
lhs_code = self._print(lhs)
|
291 |
+
rhs_code = self._print(rhs)
|
292 |
+
return self._get_statement("%s = %s" % (lhs_code, rhs_code))
|
293 |
+
|
294 |
+
|
295 |
+
def _print_Infinity(self, expr):
|
296 |
+
return 'Inf'
|
297 |
+
|
298 |
+
|
299 |
+
def _print_NegativeInfinity(self, expr):
|
300 |
+
return '-Inf'
|
301 |
+
|
302 |
+
|
303 |
+
def _print_NaN(self, expr):
|
304 |
+
return 'NaN'
|
305 |
+
|
306 |
+
|
307 |
+
def _print_list(self, expr):
|
308 |
+
return 'Any[' + ', '.join(self._print(a) for a in expr) + ']'
|
309 |
+
|
310 |
+
|
311 |
+
def _print_tuple(self, expr):
|
312 |
+
if len(expr) == 1:
|
313 |
+
return "(%s,)" % self._print(expr[0])
|
314 |
+
else:
|
315 |
+
return "(%s)" % self.stringify(expr, ", ")
|
316 |
+
_print_Tuple = _print_tuple
|
317 |
+
|
318 |
+
|
319 |
+
def _print_BooleanTrue(self, expr):
|
320 |
+
return "true"
|
321 |
+
|
322 |
+
|
323 |
+
def _print_BooleanFalse(self, expr):
|
324 |
+
return "false"
|
325 |
+
|
326 |
+
|
327 |
+
def _print_bool(self, expr):
|
328 |
+
return str(expr).lower()
|
329 |
+
|
330 |
+
|
331 |
+
# Could generate quadrature code for definite Integrals?
|
332 |
+
#_print_Integral = _print_not_supported
|
333 |
+
|
334 |
+
|
335 |
+
def _print_MatrixBase(self, A):
|
336 |
+
# Handle zero dimensions:
|
337 |
+
if S.Zero in A.shape:
|
338 |
+
return 'zeros(%s, %s)' % (A.rows, A.cols)
|
339 |
+
elif (A.rows, A.cols) == (1, 1):
|
340 |
+
return "[%s]" % A[0, 0]
|
341 |
+
elif A.rows == 1:
|
342 |
+
return "[%s]" % A.table(self, rowstart='', rowend='', colsep=' ')
|
343 |
+
elif A.cols == 1:
|
344 |
+
# note .table would unnecessarily equispace the rows
|
345 |
+
return "[%s]" % ", ".join([self._print(a) for a in A])
|
346 |
+
return "[%s]" % A.table(self, rowstart='', rowend='',
|
347 |
+
rowsep=';\n', colsep=' ')
|
348 |
+
|
349 |
+
|
350 |
+
def _print_SparseRepMatrix(self, A):
|
351 |
+
from sympy.matrices import Matrix
|
352 |
+
L = A.col_list();
|
353 |
+
# make row vectors of the indices and entries
|
354 |
+
I = Matrix([k[0] + 1 for k in L])
|
355 |
+
J = Matrix([k[1] + 1 for k in L])
|
356 |
+
AIJ = Matrix([k[2] for k in L])
|
357 |
+
return "sparse(%s, %s, %s, %s, %s)" % (self._print(I), self._print(J),
|
358 |
+
self._print(AIJ), A.rows, A.cols)
|
359 |
+
|
360 |
+
|
361 |
+
def _print_MatrixElement(self, expr):
|
362 |
+
return self.parenthesize(expr.parent, PRECEDENCE["Atom"], strict=True) \
|
363 |
+
+ '[%s,%s]' % (expr.i + 1, expr.j + 1)
|
364 |
+
|
365 |
+
|
366 |
+
def _print_MatrixSlice(self, expr):
|
367 |
+
def strslice(x, lim):
|
368 |
+
l = x[0] + 1
|
369 |
+
h = x[1]
|
370 |
+
step = x[2]
|
371 |
+
lstr = self._print(l)
|
372 |
+
hstr = 'end' if h == lim else self._print(h)
|
373 |
+
if step == 1:
|
374 |
+
if l == 1 and h == lim:
|
375 |
+
return ':'
|
376 |
+
if l == h:
|
377 |
+
return lstr
|
378 |
+
else:
|
379 |
+
return lstr + ':' + hstr
|
380 |
+
else:
|
381 |
+
return ':'.join((lstr, self._print(step), hstr))
|
382 |
+
return (self._print(expr.parent) + '[' +
|
383 |
+
strslice(expr.rowslice, expr.parent.shape[0]) + ',' +
|
384 |
+
strslice(expr.colslice, expr.parent.shape[1]) + ']')
|
385 |
+
|
386 |
+
|
387 |
+
def _print_Indexed(self, expr):
|
388 |
+
inds = [ self._print(i) for i in expr.indices ]
|
389 |
+
return "%s[%s]" % (self._print(expr.base.label), ",".join(inds))
|
390 |
+
|
391 |
+
|
392 |
+
def _print_Idx(self, expr):
|
393 |
+
return self._print(expr.label)
|
394 |
+
|
395 |
+
|
396 |
+
def _print_Identity(self, expr):
|
397 |
+
return "eye(%s)" % self._print(expr.shape[0])
|
398 |
+
|
399 |
+
def _print_HadamardProduct(self, expr):
|
400 |
+
return ' .* '.join([self.parenthesize(arg, precedence(expr))
|
401 |
+
for arg in expr.args])
|
402 |
+
|
403 |
+
def _print_HadamardPower(self, expr):
|
404 |
+
PREC = precedence(expr)
|
405 |
+
return '.**'.join([
|
406 |
+
self.parenthesize(expr.base, PREC),
|
407 |
+
self.parenthesize(expr.exp, PREC)
|
408 |
+
])
|
409 |
+
|
410 |
+
def _print_Rational(self, expr):
|
411 |
+
if expr.q == 1:
|
412 |
+
return str(expr.p)
|
413 |
+
return "%s // %s" % (expr.p, expr.q)
|
414 |
+
|
415 |
+
# Note: as of 2022, Julia doesn't have spherical Bessel functions
|
416 |
+
def _print_jn(self, expr):
|
417 |
+
from sympy.functions import sqrt, besselj
|
418 |
+
x = expr.argument
|
419 |
+
expr2 = sqrt(S.Pi/(2*x))*besselj(expr.order + S.Half, x)
|
420 |
+
return self._print(expr2)
|
421 |
+
|
422 |
+
|
423 |
+
def _print_yn(self, expr):
|
424 |
+
from sympy.functions import sqrt, bessely
|
425 |
+
x = expr.argument
|
426 |
+
expr2 = sqrt(S.Pi/(2*x))*bessely(expr.order + S.Half, x)
|
427 |
+
return self._print(expr2)
|
428 |
+
|
429 |
+
|
430 |
+
def _print_Piecewise(self, expr):
|
431 |
+
if expr.args[-1].cond != True:
|
432 |
+
# We need the last conditional to be a True, otherwise the resulting
|
433 |
+
# function may not return a result.
|
434 |
+
raise ValueError("All Piecewise expressions must contain an "
|
435 |
+
"(expr, True) statement to be used as a default "
|
436 |
+
"condition. Without one, the generated "
|
437 |
+
"expression may not evaluate to anything under "
|
438 |
+
"some condition.")
|
439 |
+
lines = []
|
440 |
+
if self._settings["inline"]:
|
441 |
+
# Express each (cond, expr) pair in a nested Horner form:
|
442 |
+
# (condition) .* (expr) + (not cond) .* (<others>)
|
443 |
+
# Expressions that result in multiple statements won't work here.
|
444 |
+
ecpairs = ["({}) ? ({}) :".format
|
445 |
+
(self._print(c), self._print(e))
|
446 |
+
for e, c in expr.args[:-1]]
|
447 |
+
elast = " (%s)" % self._print(expr.args[-1].expr)
|
448 |
+
pw = "\n".join(ecpairs) + elast
|
449 |
+
# Note: current need these outer brackets for 2*pw. Would be
|
450 |
+
# nicer to teach parenthesize() to do this for us when needed!
|
451 |
+
return "(" + pw + ")"
|
452 |
+
else:
|
453 |
+
for i, (e, c) in enumerate(expr.args):
|
454 |
+
if i == 0:
|
455 |
+
lines.append("if (%s)" % self._print(c))
|
456 |
+
elif i == len(expr.args) - 1 and c == True:
|
457 |
+
lines.append("else")
|
458 |
+
else:
|
459 |
+
lines.append("elseif (%s)" % self._print(c))
|
460 |
+
code0 = self._print(e)
|
461 |
+
lines.append(code0)
|
462 |
+
if i == len(expr.args) - 1:
|
463 |
+
lines.append("end")
|
464 |
+
return "\n".join(lines)
|
465 |
+
|
466 |
+
def _print_MatMul(self, expr):
|
467 |
+
c, m = expr.as_coeff_mmul()
|
468 |
+
|
469 |
+
sign = ""
|
470 |
+
if c.is_number:
|
471 |
+
re, im = c.as_real_imag()
|
472 |
+
if im.is_zero and re.is_negative:
|
473 |
+
expr = _keep_coeff(-c, m)
|
474 |
+
sign = "-"
|
475 |
+
elif re.is_zero and im.is_negative:
|
476 |
+
expr = _keep_coeff(-c, m)
|
477 |
+
sign = "-"
|
478 |
+
|
479 |
+
return sign + ' * '.join(
|
480 |
+
(self.parenthesize(arg, precedence(expr)) for arg in expr.args)
|
481 |
+
)
|
482 |
+
|
483 |
+
|
484 |
+
def indent_code(self, code):
|
485 |
+
"""Accepts a string of code or a list of code lines"""
|
486 |
+
|
487 |
+
# code mostly copied from ccode
|
488 |
+
if isinstance(code, str):
|
489 |
+
code_lines = self.indent_code(code.splitlines(True))
|
490 |
+
return ''.join(code_lines)
|
491 |
+
|
492 |
+
tab = " "
|
493 |
+
inc_regex = ('^function ', '^if ', '^elseif ', '^else$', '^for ')
|
494 |
+
dec_regex = ('^end$', '^elseif ', '^else$')
|
495 |
+
|
496 |
+
# pre-strip left-space from the code
|
497 |
+
code = [ line.lstrip(' \t') for line in code ]
|
498 |
+
|
499 |
+
increase = [ int(any(search(re, line) for re in inc_regex))
|
500 |
+
for line in code ]
|
501 |
+
decrease = [ int(any(search(re, line) for re in dec_regex))
|
502 |
+
for line in code ]
|
503 |
+
|
504 |
+
pretty = []
|
505 |
+
level = 0
|
506 |
+
for n, line in enumerate(code):
|
507 |
+
if line in ('', '\n'):
|
508 |
+
pretty.append(line)
|
509 |
+
continue
|
510 |
+
level -= decrease[n]
|
511 |
+
pretty.append("%s%s" % (tab*level, line))
|
512 |
+
level += increase[n]
|
513 |
+
return pretty
|
514 |
+
|
515 |
+
|
516 |
+
def julia_code(expr, assign_to=None, **settings):
|
517 |
+
r"""Converts `expr` to a string of Julia code.
|
518 |
+
|
519 |
+
Parameters
|
520 |
+
==========
|
521 |
+
|
522 |
+
expr : Expr
|
523 |
+
A SymPy expression to be converted.
|
524 |
+
assign_to : optional
|
525 |
+
When given, the argument is used as the name of the variable to which
|
526 |
+
the expression is assigned. Can be a string, ``Symbol``,
|
527 |
+
``MatrixSymbol``, or ``Indexed`` type. This can be helpful for
|
528 |
+
expressions that generate multi-line statements.
|
529 |
+
precision : integer, optional
|
530 |
+
The precision for numbers such as pi [default=16].
|
531 |
+
user_functions : dict, optional
|
532 |
+
A dictionary where keys are ``FunctionClass`` instances and values are
|
533 |
+
their string representations. Alternatively, the dictionary value can
|
534 |
+
be a list of tuples i.e. [(argument_test, cfunction_string)]. See
|
535 |
+
below for examples.
|
536 |
+
human : bool, optional
|
537 |
+
If True, the result is a single string that may contain some constant
|
538 |
+
declarations for the number symbols. If False, the same information is
|
539 |
+
returned in a tuple of (symbols_to_declare, not_supported_functions,
|
540 |
+
code_text). [default=True].
|
541 |
+
contract: bool, optional
|
542 |
+
If True, ``Indexed`` instances are assumed to obey tensor contraction
|
543 |
+
rules and the corresponding nested loops over indices are generated.
|
544 |
+
Setting contract=False will not generate loops, instead the user is
|
545 |
+
responsible to provide values for the indices in the code.
|
546 |
+
[default=True].
|
547 |
+
inline: bool, optional
|
548 |
+
If True, we try to create single-statement code instead of multiple
|
549 |
+
statements. [default=True].
|
550 |
+
|
551 |
+
Examples
|
552 |
+
========
|
553 |
+
|
554 |
+
>>> from sympy import julia_code, symbols, sin, pi
|
555 |
+
>>> x = symbols('x')
|
556 |
+
>>> julia_code(sin(x).series(x).removeO())
|
557 |
+
'x .^ 5 / 120 - x .^ 3 / 6 + x'
|
558 |
+
|
559 |
+
>>> from sympy import Rational, ceiling
|
560 |
+
>>> x, y, tau = symbols("x, y, tau")
|
561 |
+
>>> julia_code((2*tau)**Rational(7, 2))
|
562 |
+
'8 * sqrt(2) * tau .^ (7 // 2)'
|
563 |
+
|
564 |
+
Note that element-wise (Hadamard) operations are used by default between
|
565 |
+
symbols. This is because its possible in Julia to write "vectorized"
|
566 |
+
code. It is harmless if the values are scalars.
|
567 |
+
|
568 |
+
>>> julia_code(sin(pi*x*y), assign_to="s")
|
569 |
+
's = sin(pi * x .* y)'
|
570 |
+
|
571 |
+
If you need a matrix product "*" or matrix power "^", you can specify the
|
572 |
+
symbol as a ``MatrixSymbol``.
|
573 |
+
|
574 |
+
>>> from sympy import Symbol, MatrixSymbol
|
575 |
+
>>> n = Symbol('n', integer=True, positive=True)
|
576 |
+
>>> A = MatrixSymbol('A', n, n)
|
577 |
+
>>> julia_code(3*pi*A**3)
|
578 |
+
'(3 * pi) * A ^ 3'
|
579 |
+
|
580 |
+
This class uses several rules to decide which symbol to use a product.
|
581 |
+
Pure numbers use "*", Symbols use ".*" and MatrixSymbols use "*".
|
582 |
+
A HadamardProduct can be used to specify componentwise multiplication ".*"
|
583 |
+
of two MatrixSymbols. There is currently there is no easy way to specify
|
584 |
+
scalar symbols, so sometimes the code might have some minor cosmetic
|
585 |
+
issues. For example, suppose x and y are scalars and A is a Matrix, then
|
586 |
+
while a human programmer might write "(x^2*y)*A^3", we generate:
|
587 |
+
|
588 |
+
>>> julia_code(x**2*y*A**3)
|
589 |
+
'(x .^ 2 .* y) * A ^ 3'
|
590 |
+
|
591 |
+
Matrices are supported using Julia inline notation. When using
|
592 |
+
``assign_to`` with matrices, the name can be specified either as a string
|
593 |
+
or as a ``MatrixSymbol``. The dimensions must align in the latter case.
|
594 |
+
|
595 |
+
>>> from sympy import Matrix, MatrixSymbol
|
596 |
+
>>> mat = Matrix([[x**2, sin(x), ceiling(x)]])
|
597 |
+
>>> julia_code(mat, assign_to='A')
|
598 |
+
'A = [x .^ 2 sin(x) ceil(x)]'
|
599 |
+
|
600 |
+
``Piecewise`` expressions are implemented with logical masking by default.
|
601 |
+
Alternatively, you can pass "inline=False" to use if-else conditionals.
|
602 |
+
Note that if the ``Piecewise`` lacks a default term, represented by
|
603 |
+
``(expr, True)`` then an error will be thrown. This is to prevent
|
604 |
+
generating an expression that may not evaluate to anything.
|
605 |
+
|
606 |
+
>>> from sympy import Piecewise
|
607 |
+
>>> pw = Piecewise((x + 1, x > 0), (x, True))
|
608 |
+
>>> julia_code(pw, assign_to=tau)
|
609 |
+
'tau = ((x > 0) ? (x + 1) : (x))'
|
610 |
+
|
611 |
+
Note that any expression that can be generated normally can also exist
|
612 |
+
inside a Matrix:
|
613 |
+
|
614 |
+
>>> mat = Matrix([[x**2, pw, sin(x)]])
|
615 |
+
>>> julia_code(mat, assign_to='A')
|
616 |
+
'A = [x .^ 2 ((x > 0) ? (x + 1) : (x)) sin(x)]'
|
617 |
+
|
618 |
+
Custom printing can be defined for certain types by passing a dictionary of
|
619 |
+
"type" : "function" to the ``user_functions`` kwarg. Alternatively, the
|
620 |
+
dictionary value can be a list of tuples i.e., [(argument_test,
|
621 |
+
cfunction_string)]. This can be used to call a custom Julia function.
|
622 |
+
|
623 |
+
>>> from sympy import Function
|
624 |
+
>>> f = Function('f')
|
625 |
+
>>> g = Function('g')
|
626 |
+
>>> custom_functions = {
|
627 |
+
... "f": "existing_julia_fcn",
|
628 |
+
... "g": [(lambda x: x.is_Matrix, "my_mat_fcn"),
|
629 |
+
... (lambda x: not x.is_Matrix, "my_fcn")]
|
630 |
+
... }
|
631 |
+
>>> mat = Matrix([[1, x]])
|
632 |
+
>>> julia_code(f(x) + g(x) + g(mat), user_functions=custom_functions)
|
633 |
+
'existing_julia_fcn(x) + my_fcn(x) + my_mat_fcn([1 x])'
|
634 |
+
|
635 |
+
Support for loops is provided through ``Indexed`` types. With
|
636 |
+
``contract=True`` these expressions will be turned into loops, whereas
|
637 |
+
``contract=False`` will just print the assignment expression that should be
|
638 |
+
looped over:
|
639 |
+
|
640 |
+
>>> from sympy import Eq, IndexedBase, Idx
|
641 |
+
>>> len_y = 5
|
642 |
+
>>> y = IndexedBase('y', shape=(len_y,))
|
643 |
+
>>> t = IndexedBase('t', shape=(len_y,))
|
644 |
+
>>> Dy = IndexedBase('Dy', shape=(len_y-1,))
|
645 |
+
>>> i = Idx('i', len_y-1)
|
646 |
+
>>> e = Eq(Dy[i], (y[i+1]-y[i])/(t[i+1]-t[i]))
|
647 |
+
>>> julia_code(e.rhs, assign_to=e.lhs, contract=False)
|
648 |
+
'Dy[i] = (y[i + 1] - y[i]) ./ (t[i + 1] - t[i])'
|
649 |
+
"""
|
650 |
+
return JuliaCodePrinter(settings).doprint(expr, assign_to)
|
651 |
+
|
652 |
+
|
653 |
+
def print_julia_code(expr, **settings):
|
654 |
+
"""Prints the Julia representation of the given expression.
|
655 |
+
|
656 |
+
See `julia_code` for the meaning of the optional arguments.
|
657 |
+
"""
|
658 |
+
print(julia_code(expr, **settings))
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/lambdarepr.py
ADDED
@@ -0,0 +1,251 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
from .pycode import (
|
2 |
+
PythonCodePrinter,
|
3 |
+
MpmathPrinter,
|
4 |
+
)
|
5 |
+
from .numpy import NumPyPrinter # NumPyPrinter is imported for backward compatibility
|
6 |
+
from sympy.core.sorting import default_sort_key
|
7 |
+
|
8 |
+
|
9 |
+
__all__ = [
|
10 |
+
'PythonCodePrinter',
|
11 |
+
'MpmathPrinter', # MpmathPrinter is published for backward compatibility
|
12 |
+
'NumPyPrinter',
|
13 |
+
'LambdaPrinter',
|
14 |
+
'NumPyPrinter',
|
15 |
+
'IntervalPrinter',
|
16 |
+
'lambdarepr',
|
17 |
+
]
|
18 |
+
|
19 |
+
|
20 |
+
class LambdaPrinter(PythonCodePrinter):
|
21 |
+
"""
|
22 |
+
This printer converts expressions into strings that can be used by
|
23 |
+
lambdify.
|
24 |
+
"""
|
25 |
+
printmethod = "_lambdacode"
|
26 |
+
|
27 |
+
|
28 |
+
def _print_And(self, expr):
|
29 |
+
result = ['(']
|
30 |
+
for arg in sorted(expr.args, key=default_sort_key):
|
31 |
+
result.extend(['(', self._print(arg), ')'])
|
32 |
+
result.append(' and ')
|
33 |
+
result = result[:-1]
|
34 |
+
result.append(')')
|
35 |
+
return ''.join(result)
|
36 |
+
|
37 |
+
def _print_Or(self, expr):
|
38 |
+
result = ['(']
|
39 |
+
for arg in sorted(expr.args, key=default_sort_key):
|
40 |
+
result.extend(['(', self._print(arg), ')'])
|
41 |
+
result.append(' or ')
|
42 |
+
result = result[:-1]
|
43 |
+
result.append(')')
|
44 |
+
return ''.join(result)
|
45 |
+
|
46 |
+
def _print_Not(self, expr):
|
47 |
+
result = ['(', 'not (', self._print(expr.args[0]), '))']
|
48 |
+
return ''.join(result)
|
49 |
+
|
50 |
+
def _print_BooleanTrue(self, expr):
|
51 |
+
return "True"
|
52 |
+
|
53 |
+
def _print_BooleanFalse(self, expr):
|
54 |
+
return "False"
|
55 |
+
|
56 |
+
def _print_ITE(self, expr):
|
57 |
+
result = [
|
58 |
+
'((', self._print(expr.args[1]),
|
59 |
+
') if (', self._print(expr.args[0]),
|
60 |
+
') else (', self._print(expr.args[2]), '))'
|
61 |
+
]
|
62 |
+
return ''.join(result)
|
63 |
+
|
64 |
+
def _print_NumberSymbol(self, expr):
|
65 |
+
return str(expr)
|
66 |
+
|
67 |
+
def _print_Pow(self, expr, **kwargs):
|
68 |
+
# XXX Temporary workaround. Should Python math printer be
|
69 |
+
# isolated from PythonCodePrinter?
|
70 |
+
return super(PythonCodePrinter, self)._print_Pow(expr, **kwargs)
|
71 |
+
|
72 |
+
|
73 |
+
# numexpr works by altering the string passed to numexpr.evaluate
|
74 |
+
# rather than by populating a namespace. Thus a special printer...
|
75 |
+
class NumExprPrinter(LambdaPrinter):
|
76 |
+
# key, value pairs correspond to SymPy name and numexpr name
|
77 |
+
# functions not appearing in this dict will raise a TypeError
|
78 |
+
printmethod = "_numexprcode"
|
79 |
+
|
80 |
+
_numexpr_functions = {
|
81 |
+
'sin' : 'sin',
|
82 |
+
'cos' : 'cos',
|
83 |
+
'tan' : 'tan',
|
84 |
+
'asin': 'arcsin',
|
85 |
+
'acos': 'arccos',
|
86 |
+
'atan': 'arctan',
|
87 |
+
'atan2' : 'arctan2',
|
88 |
+
'sinh' : 'sinh',
|
89 |
+
'cosh' : 'cosh',
|
90 |
+
'tanh' : 'tanh',
|
91 |
+
'asinh': 'arcsinh',
|
92 |
+
'acosh': 'arccosh',
|
93 |
+
'atanh': 'arctanh',
|
94 |
+
'ln' : 'log',
|
95 |
+
'log': 'log',
|
96 |
+
'exp': 'exp',
|
97 |
+
'sqrt' : 'sqrt',
|
98 |
+
'Abs' : 'abs',
|
99 |
+
'conjugate' : 'conj',
|
100 |
+
'im' : 'imag',
|
101 |
+
're' : 'real',
|
102 |
+
'where' : 'where',
|
103 |
+
'complex' : 'complex',
|
104 |
+
'contains' : 'contains',
|
105 |
+
}
|
106 |
+
|
107 |
+
module = 'numexpr'
|
108 |
+
|
109 |
+
def _print_ImaginaryUnit(self, expr):
|
110 |
+
return '1j'
|
111 |
+
|
112 |
+
def _print_seq(self, seq, delimiter=', '):
|
113 |
+
# simplified _print_seq taken from pretty.py
|
114 |
+
s = [self._print(item) for item in seq]
|
115 |
+
if s:
|
116 |
+
return delimiter.join(s)
|
117 |
+
else:
|
118 |
+
return ""
|
119 |
+
|
120 |
+
def _print_Function(self, e):
|
121 |
+
func_name = e.func.__name__
|
122 |
+
|
123 |
+
nstr = self._numexpr_functions.get(func_name, None)
|
124 |
+
if nstr is None:
|
125 |
+
# check for implemented_function
|
126 |
+
if hasattr(e, '_imp_'):
|
127 |
+
return "(%s)" % self._print(e._imp_(*e.args))
|
128 |
+
else:
|
129 |
+
raise TypeError("numexpr does not support function '%s'" %
|
130 |
+
func_name)
|
131 |
+
return "%s(%s)" % (nstr, self._print_seq(e.args))
|
132 |
+
|
133 |
+
def _print_Piecewise(self, expr):
|
134 |
+
"Piecewise function printer"
|
135 |
+
exprs = [self._print(arg.expr) for arg in expr.args]
|
136 |
+
conds = [self._print(arg.cond) for arg in expr.args]
|
137 |
+
# If [default_value, True] is a (expr, cond) sequence in a Piecewise object
|
138 |
+
# it will behave the same as passing the 'default' kwarg to select()
|
139 |
+
# *as long as* it is the last element in expr.args.
|
140 |
+
# If this is not the case, it may be triggered prematurely.
|
141 |
+
ans = []
|
142 |
+
parenthesis_count = 0
|
143 |
+
is_last_cond_True = False
|
144 |
+
for cond, expr in zip(conds, exprs):
|
145 |
+
if cond == 'True':
|
146 |
+
ans.append(expr)
|
147 |
+
is_last_cond_True = True
|
148 |
+
break
|
149 |
+
else:
|
150 |
+
ans.append('where(%s, %s, ' % (cond, expr))
|
151 |
+
parenthesis_count += 1
|
152 |
+
if not is_last_cond_True:
|
153 |
+
# See https://github.com/pydata/numexpr/issues/298
|
154 |
+
#
|
155 |
+
# simplest way to put a nan but raises
|
156 |
+
# 'RuntimeWarning: invalid value encountered in log'
|
157 |
+
#
|
158 |
+
# There are other ways to do this such as
|
159 |
+
#
|
160 |
+
# >>> import numexpr as ne
|
161 |
+
# >>> nan = float('nan')
|
162 |
+
# >>> ne.evaluate('where(x < 0, -1, nan)', {'x': [-1, 2, 3], 'nan':nan})
|
163 |
+
# array([-1., nan, nan])
|
164 |
+
#
|
165 |
+
# That needs to be handled in the lambdified function though rather
|
166 |
+
# than here in the printer.
|
167 |
+
ans.append('log(-1)')
|
168 |
+
return ''.join(ans) + ')' * parenthesis_count
|
169 |
+
|
170 |
+
def _print_ITE(self, expr):
|
171 |
+
from sympy.functions.elementary.piecewise import Piecewise
|
172 |
+
return self._print(expr.rewrite(Piecewise))
|
173 |
+
|
174 |
+
def blacklisted(self, expr):
|
175 |
+
raise TypeError("numexpr cannot be used with %s" %
|
176 |
+
expr.__class__.__name__)
|
177 |
+
|
178 |
+
# blacklist all Matrix printing
|
179 |
+
_print_SparseRepMatrix = \
|
180 |
+
_print_MutableSparseMatrix = \
|
181 |
+
_print_ImmutableSparseMatrix = \
|
182 |
+
_print_Matrix = \
|
183 |
+
_print_DenseMatrix = \
|
184 |
+
_print_MutableDenseMatrix = \
|
185 |
+
_print_ImmutableMatrix = \
|
186 |
+
_print_ImmutableDenseMatrix = \
|
187 |
+
blacklisted
|
188 |
+
# blacklist some Python expressions
|
189 |
+
_print_list = \
|
190 |
+
_print_tuple = \
|
191 |
+
_print_Tuple = \
|
192 |
+
_print_dict = \
|
193 |
+
_print_Dict = \
|
194 |
+
blacklisted
|
195 |
+
|
196 |
+
def _print_NumExprEvaluate(self, expr):
|
197 |
+
evaluate = self._module_format(self.module +".evaluate")
|
198 |
+
return "%s('%s', truediv=True)" % (evaluate, self._print(expr.expr))
|
199 |
+
|
200 |
+
def doprint(self, expr):
|
201 |
+
from sympy.codegen.ast import CodegenAST
|
202 |
+
from sympy.codegen.pynodes import NumExprEvaluate
|
203 |
+
if not isinstance(expr, CodegenAST):
|
204 |
+
expr = NumExprEvaluate(expr)
|
205 |
+
return super().doprint(expr)
|
206 |
+
|
207 |
+
def _print_Return(self, expr):
|
208 |
+
from sympy.codegen.pynodes import NumExprEvaluate
|
209 |
+
r, = expr.args
|
210 |
+
if not isinstance(r, NumExprEvaluate):
|
211 |
+
expr = expr.func(NumExprEvaluate(r))
|
212 |
+
return super()._print_Return(expr)
|
213 |
+
|
214 |
+
def _print_Assignment(self, expr):
|
215 |
+
from sympy.codegen.pynodes import NumExprEvaluate
|
216 |
+
lhs, rhs, *args = expr.args
|
217 |
+
if not isinstance(rhs, NumExprEvaluate):
|
218 |
+
expr = expr.func(lhs, NumExprEvaluate(rhs), *args)
|
219 |
+
return super()._print_Assignment(expr)
|
220 |
+
|
221 |
+
def _print_CodeBlock(self, expr):
|
222 |
+
from sympy.codegen.ast import CodegenAST
|
223 |
+
from sympy.codegen.pynodes import NumExprEvaluate
|
224 |
+
args = [ arg if isinstance(arg, CodegenAST) else NumExprEvaluate(arg) for arg in expr.args ]
|
225 |
+
return super()._print_CodeBlock(self, expr.func(*args))
|
226 |
+
|
227 |
+
|
228 |
+
class IntervalPrinter(MpmathPrinter, LambdaPrinter):
|
229 |
+
"""Use ``lambda`` printer but print numbers as ``mpi`` intervals. """
|
230 |
+
|
231 |
+
def _print_Integer(self, expr):
|
232 |
+
return "mpi('%s')" % super(PythonCodePrinter, self)._print_Integer(expr)
|
233 |
+
|
234 |
+
def _print_Rational(self, expr):
|
235 |
+
return "mpi('%s')" % super(PythonCodePrinter, self)._print_Rational(expr)
|
236 |
+
|
237 |
+
def _print_Half(self, expr):
|
238 |
+
return "mpi('%s')" % super(PythonCodePrinter, self)._print_Rational(expr)
|
239 |
+
|
240 |
+
def _print_Pow(self, expr):
|
241 |
+
return super(MpmathPrinter, self)._print_Pow(expr, rational=True)
|
242 |
+
|
243 |
+
|
244 |
+
for k in NumExprPrinter._numexpr_functions:
|
245 |
+
setattr(NumExprPrinter, '_print_%s' % k, NumExprPrinter._print_Function)
|
246 |
+
|
247 |
+
def lambdarepr(expr, **settings):
|
248 |
+
"""
|
249 |
+
Returns a string usable for lambdifying.
|
250 |
+
"""
|
251 |
+
return LambdaPrinter(settings).doprint(expr)
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/latex.py
ADDED
The diff for this file is too large to render.
See raw diff
|
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/llvmjitcode.py
ADDED
@@ -0,0 +1,489 @@
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
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|
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|
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|
|
|
|
|
|
|
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|
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|
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|
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|
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|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
'''
|
2 |
+
Use llvmlite to create executable functions from SymPy expressions
|
3 |
+
|
4 |
+
This module requires llvmlite (https://github.com/numba/llvmlite).
|
5 |
+
'''
|
6 |
+
|
7 |
+
import ctypes
|
8 |
+
|
9 |
+
from sympy.external import import_module
|
10 |
+
from sympy.printing.printer import Printer
|
11 |
+
from sympy.core.singleton import S
|
12 |
+
from sympy.tensor.indexed import IndexedBase
|
13 |
+
from sympy.utilities.decorator import doctest_depends_on
|
14 |
+
|
15 |
+
llvmlite = import_module('llvmlite')
|
16 |
+
if llvmlite:
|
17 |
+
ll = import_module('llvmlite.ir').ir
|
18 |
+
llvm = import_module('llvmlite.binding').binding
|
19 |
+
llvm.initialize()
|
20 |
+
llvm.initialize_native_target()
|
21 |
+
llvm.initialize_native_asmprinter()
|
22 |
+
|
23 |
+
|
24 |
+
__doctest_requires__ = {('llvm_callable'): ['llvmlite']}
|
25 |
+
|
26 |
+
|
27 |
+
class LLVMJitPrinter(Printer):
|
28 |
+
'''Convert expressions to LLVM IR'''
|
29 |
+
def __init__(self, module, builder, fn, *args, **kwargs):
|
30 |
+
self.func_arg_map = kwargs.pop("func_arg_map", {})
|
31 |
+
if not llvmlite:
|
32 |
+
raise ImportError("llvmlite is required for LLVMJITPrinter")
|
33 |
+
super().__init__(*args, **kwargs)
|
34 |
+
self.fp_type = ll.DoubleType()
|
35 |
+
self.module = module
|
36 |
+
self.builder = builder
|
37 |
+
self.fn = fn
|
38 |
+
self.ext_fn = {} # keep track of wrappers to external functions
|
39 |
+
self.tmp_var = {}
|
40 |
+
|
41 |
+
def _add_tmp_var(self, name, value):
|
42 |
+
self.tmp_var[name] = value
|
43 |
+
|
44 |
+
def _print_Number(self, n):
|
45 |
+
return ll.Constant(self.fp_type, float(n))
|
46 |
+
|
47 |
+
def _print_Integer(self, expr):
|
48 |
+
return ll.Constant(self.fp_type, float(expr.p))
|
49 |
+
|
50 |
+
def _print_Symbol(self, s):
|
51 |
+
val = self.tmp_var.get(s)
|
52 |
+
if not val:
|
53 |
+
# look up parameter with name s
|
54 |
+
val = self.func_arg_map.get(s)
|
55 |
+
if not val:
|
56 |
+
raise LookupError("Symbol not found: %s" % s)
|
57 |
+
return val
|
58 |
+
|
59 |
+
def _print_Pow(self, expr):
|
60 |
+
base0 = self._print(expr.base)
|
61 |
+
if expr.exp == S.NegativeOne:
|
62 |
+
return self.builder.fdiv(ll.Constant(self.fp_type, 1.0), base0)
|
63 |
+
if expr.exp == S.Half:
|
64 |
+
fn = self.ext_fn.get("sqrt")
|
65 |
+
if not fn:
|
66 |
+
fn_type = ll.FunctionType(self.fp_type, [self.fp_type])
|
67 |
+
fn = ll.Function(self.module, fn_type, "sqrt")
|
68 |
+
self.ext_fn["sqrt"] = fn
|
69 |
+
return self.builder.call(fn, [base0], "sqrt")
|
70 |
+
if expr.exp == 2:
|
71 |
+
return self.builder.fmul(base0, base0)
|
72 |
+
|
73 |
+
exp0 = self._print(expr.exp)
|
74 |
+
fn = self.ext_fn.get("pow")
|
75 |
+
if not fn:
|
76 |
+
fn_type = ll.FunctionType(self.fp_type, [self.fp_type, self.fp_type])
|
77 |
+
fn = ll.Function(self.module, fn_type, "pow")
|
78 |
+
self.ext_fn["pow"] = fn
|
79 |
+
return self.builder.call(fn, [base0, exp0], "pow")
|
80 |
+
|
81 |
+
def _print_Mul(self, expr):
|
82 |
+
nodes = [self._print(a) for a in expr.args]
|
83 |
+
e = nodes[0]
|
84 |
+
for node in nodes[1:]:
|
85 |
+
e = self.builder.fmul(e, node)
|
86 |
+
return e
|
87 |
+
|
88 |
+
def _print_Add(self, expr):
|
89 |
+
nodes = [self._print(a) for a in expr.args]
|
90 |
+
e = nodes[0]
|
91 |
+
for node in nodes[1:]:
|
92 |
+
e = self.builder.fadd(e, node)
|
93 |
+
return e
|
94 |
+
|
95 |
+
# TODO - assumes all called functions take one double precision argument.
|
96 |
+
# Should have a list of math library functions to validate this.
|
97 |
+
def _print_Function(self, expr):
|
98 |
+
name = expr.func.__name__
|
99 |
+
e0 = self._print(expr.args[0])
|
100 |
+
fn = self.ext_fn.get(name)
|
101 |
+
if not fn:
|
102 |
+
fn_type = ll.FunctionType(self.fp_type, [self.fp_type])
|
103 |
+
fn = ll.Function(self.module, fn_type, name)
|
104 |
+
self.ext_fn[name] = fn
|
105 |
+
return self.builder.call(fn, [e0], name)
|
106 |
+
|
107 |
+
def emptyPrinter(self, expr):
|
108 |
+
raise TypeError("Unsupported type for LLVM JIT conversion: %s"
|
109 |
+
% type(expr))
|
110 |
+
|
111 |
+
|
112 |
+
# Used when parameters are passed by array. Often used in callbacks to
|
113 |
+
# handle a variable number of parameters.
|
114 |
+
class LLVMJitCallbackPrinter(LLVMJitPrinter):
|
115 |
+
def __init__(self, *args, **kwargs):
|
116 |
+
super().__init__(*args, **kwargs)
|
117 |
+
|
118 |
+
def _print_Indexed(self, expr):
|
119 |
+
array, idx = self.func_arg_map[expr.base]
|
120 |
+
offset = int(expr.indices[0].evalf())
|
121 |
+
array_ptr = self.builder.gep(array, [ll.Constant(ll.IntType(32), offset)])
|
122 |
+
fp_array_ptr = self.builder.bitcast(array_ptr, ll.PointerType(self.fp_type))
|
123 |
+
value = self.builder.load(fp_array_ptr)
|
124 |
+
return value
|
125 |
+
|
126 |
+
def _print_Symbol(self, s):
|
127 |
+
val = self.tmp_var.get(s)
|
128 |
+
if val:
|
129 |
+
return val
|
130 |
+
|
131 |
+
array, idx = self.func_arg_map.get(s, [None, 0])
|
132 |
+
if not array:
|
133 |
+
raise LookupError("Symbol not found: %s" % s)
|
134 |
+
array_ptr = self.builder.gep(array, [ll.Constant(ll.IntType(32), idx)])
|
135 |
+
fp_array_ptr = self.builder.bitcast(array_ptr,
|
136 |
+
ll.PointerType(self.fp_type))
|
137 |
+
value = self.builder.load(fp_array_ptr)
|
138 |
+
return value
|
139 |
+
|
140 |
+
|
141 |
+
# ensure lifetime of the execution engine persists (else call to compiled
|
142 |
+
# function will seg fault)
|
143 |
+
exe_engines = []
|
144 |
+
|
145 |
+
# ensure names for generated functions are unique
|
146 |
+
link_names = set()
|
147 |
+
current_link_suffix = 0
|
148 |
+
|
149 |
+
|
150 |
+
class LLVMJitCode:
|
151 |
+
def __init__(self, signature):
|
152 |
+
self.signature = signature
|
153 |
+
self.fp_type = ll.DoubleType()
|
154 |
+
self.module = ll.Module('mod1')
|
155 |
+
self.fn = None
|
156 |
+
self.llvm_arg_types = []
|
157 |
+
self.llvm_ret_type = self.fp_type
|
158 |
+
self.param_dict = {} # map symbol name to LLVM function argument
|
159 |
+
self.link_name = ''
|
160 |
+
|
161 |
+
def _from_ctype(self, ctype):
|
162 |
+
if ctype == ctypes.c_int:
|
163 |
+
return ll.IntType(32)
|
164 |
+
if ctype == ctypes.c_double:
|
165 |
+
return self.fp_type
|
166 |
+
if ctype == ctypes.POINTER(ctypes.c_double):
|
167 |
+
return ll.PointerType(self.fp_type)
|
168 |
+
if ctype == ctypes.c_void_p:
|
169 |
+
return ll.PointerType(ll.IntType(32))
|
170 |
+
if ctype == ctypes.py_object:
|
171 |
+
return ll.PointerType(ll.IntType(32))
|
172 |
+
|
173 |
+
print("Unhandled ctype = %s" % str(ctype))
|
174 |
+
|
175 |
+
def _create_args(self, func_args):
|
176 |
+
"""Create types for function arguments"""
|
177 |
+
self.llvm_ret_type = self._from_ctype(self.signature.ret_type)
|
178 |
+
self.llvm_arg_types = \
|
179 |
+
[self._from_ctype(a) for a in self.signature.arg_ctypes]
|
180 |
+
|
181 |
+
def _create_function_base(self):
|
182 |
+
"""Create function with name and type signature"""
|
183 |
+
global link_names, current_link_suffix
|
184 |
+
default_link_name = 'jit_func'
|
185 |
+
current_link_suffix += 1
|
186 |
+
self.link_name = default_link_name + str(current_link_suffix)
|
187 |
+
link_names.add(self.link_name)
|
188 |
+
|
189 |
+
fn_type = ll.FunctionType(self.llvm_ret_type, self.llvm_arg_types)
|
190 |
+
self.fn = ll.Function(self.module, fn_type, name=self.link_name)
|
191 |
+
|
192 |
+
def _create_param_dict(self, func_args):
|
193 |
+
"""Mapping of symbolic values to function arguments"""
|
194 |
+
for i, a in enumerate(func_args):
|
195 |
+
self.fn.args[i].name = str(a)
|
196 |
+
self.param_dict[a] = self.fn.args[i]
|
197 |
+
|
198 |
+
def _create_function(self, expr):
|
199 |
+
"""Create function body and return LLVM IR"""
|
200 |
+
bb_entry = self.fn.append_basic_block('entry')
|
201 |
+
builder = ll.IRBuilder(bb_entry)
|
202 |
+
|
203 |
+
lj = LLVMJitPrinter(self.module, builder, self.fn,
|
204 |
+
func_arg_map=self.param_dict)
|
205 |
+
|
206 |
+
ret = self._convert_expr(lj, expr)
|
207 |
+
lj.builder.ret(self._wrap_return(lj, ret))
|
208 |
+
|
209 |
+
strmod = str(self.module)
|
210 |
+
return strmod
|
211 |
+
|
212 |
+
def _wrap_return(self, lj, vals):
|
213 |
+
# Return a single double if there is one return value,
|
214 |
+
# else return a tuple of doubles.
|
215 |
+
|
216 |
+
# Don't wrap return value in this case
|
217 |
+
if self.signature.ret_type == ctypes.c_double:
|
218 |
+
return vals[0]
|
219 |
+
|
220 |
+
# Use this instead of a real PyObject*
|
221 |
+
void_ptr = ll.PointerType(ll.IntType(32))
|
222 |
+
|
223 |
+
# Create a wrapped double: PyObject* PyFloat_FromDouble(double v)
|
224 |
+
wrap_type = ll.FunctionType(void_ptr, [self.fp_type])
|
225 |
+
wrap_fn = ll.Function(lj.module, wrap_type, "PyFloat_FromDouble")
|
226 |
+
|
227 |
+
wrapped_vals = [lj.builder.call(wrap_fn, [v]) for v in vals]
|
228 |
+
if len(vals) == 1:
|
229 |
+
final_val = wrapped_vals[0]
|
230 |
+
else:
|
231 |
+
# Create a tuple: PyObject* PyTuple_Pack(Py_ssize_t n, ...)
|
232 |
+
|
233 |
+
# This should be Py_ssize_t
|
234 |
+
tuple_arg_types = [ll.IntType(32)]
|
235 |
+
|
236 |
+
tuple_arg_types.extend([void_ptr]*len(vals))
|
237 |
+
tuple_type = ll.FunctionType(void_ptr, tuple_arg_types)
|
238 |
+
tuple_fn = ll.Function(lj.module, tuple_type, "PyTuple_Pack")
|
239 |
+
|
240 |
+
tuple_args = [ll.Constant(ll.IntType(32), len(wrapped_vals))]
|
241 |
+
tuple_args.extend(wrapped_vals)
|
242 |
+
|
243 |
+
final_val = lj.builder.call(tuple_fn, tuple_args)
|
244 |
+
|
245 |
+
return final_val
|
246 |
+
|
247 |
+
def _convert_expr(self, lj, expr):
|
248 |
+
try:
|
249 |
+
# Match CSE return data structure.
|
250 |
+
if len(expr) == 2:
|
251 |
+
tmp_exprs = expr[0]
|
252 |
+
final_exprs = expr[1]
|
253 |
+
if len(final_exprs) != 1 and self.signature.ret_type == ctypes.c_double:
|
254 |
+
raise NotImplementedError("Return of multiple expressions not supported for this callback")
|
255 |
+
for name, e in tmp_exprs:
|
256 |
+
val = lj._print(e)
|
257 |
+
lj._add_tmp_var(name, val)
|
258 |
+
except TypeError:
|
259 |
+
final_exprs = [expr]
|
260 |
+
|
261 |
+
vals = [lj._print(e) for e in final_exprs]
|
262 |
+
|
263 |
+
return vals
|
264 |
+
|
265 |
+
def _compile_function(self, strmod):
|
266 |
+
global exe_engines
|
267 |
+
llmod = llvm.parse_assembly(strmod)
|
268 |
+
|
269 |
+
pmb = llvm.create_pass_manager_builder()
|
270 |
+
pmb.opt_level = 2
|
271 |
+
pass_manager = llvm.create_module_pass_manager()
|
272 |
+
pmb.populate(pass_manager)
|
273 |
+
|
274 |
+
pass_manager.run(llmod)
|
275 |
+
|
276 |
+
target_machine = \
|
277 |
+
llvm.Target.from_default_triple().create_target_machine()
|
278 |
+
exe_eng = llvm.create_mcjit_compiler(llmod, target_machine)
|
279 |
+
exe_eng.finalize_object()
|
280 |
+
exe_engines.append(exe_eng)
|
281 |
+
|
282 |
+
if False:
|
283 |
+
print("Assembly")
|
284 |
+
print(target_machine.emit_assembly(llmod))
|
285 |
+
|
286 |
+
fptr = exe_eng.get_function_address(self.link_name)
|
287 |
+
|
288 |
+
return fptr
|
289 |
+
|
290 |
+
|
291 |
+
class LLVMJitCodeCallback(LLVMJitCode):
|
292 |
+
def __init__(self, signature):
|
293 |
+
super().__init__(signature)
|
294 |
+
|
295 |
+
def _create_param_dict(self, func_args):
|
296 |
+
for i, a in enumerate(func_args):
|
297 |
+
if isinstance(a, IndexedBase):
|
298 |
+
self.param_dict[a] = (self.fn.args[i], i)
|
299 |
+
self.fn.args[i].name = str(a)
|
300 |
+
else:
|
301 |
+
self.param_dict[a] = (self.fn.args[self.signature.input_arg],
|
302 |
+
i)
|
303 |
+
|
304 |
+
def _create_function(self, expr):
|
305 |
+
"""Create function body and return LLVM IR"""
|
306 |
+
bb_entry = self.fn.append_basic_block('entry')
|
307 |
+
builder = ll.IRBuilder(bb_entry)
|
308 |
+
|
309 |
+
lj = LLVMJitCallbackPrinter(self.module, builder, self.fn,
|
310 |
+
func_arg_map=self.param_dict)
|
311 |
+
|
312 |
+
ret = self._convert_expr(lj, expr)
|
313 |
+
|
314 |
+
if self.signature.ret_arg:
|
315 |
+
output_fp_ptr = builder.bitcast(self.fn.args[self.signature.ret_arg],
|
316 |
+
ll.PointerType(self.fp_type))
|
317 |
+
for i, val in enumerate(ret):
|
318 |
+
index = ll.Constant(ll.IntType(32), i)
|
319 |
+
output_array_ptr = builder.gep(output_fp_ptr, [index])
|
320 |
+
builder.store(val, output_array_ptr)
|
321 |
+
builder.ret(ll.Constant(ll.IntType(32), 0)) # return success
|
322 |
+
else:
|
323 |
+
lj.builder.ret(self._wrap_return(lj, ret))
|
324 |
+
|
325 |
+
strmod = str(self.module)
|
326 |
+
return strmod
|
327 |
+
|
328 |
+
|
329 |
+
class CodeSignature:
|
330 |
+
def __init__(self, ret_type):
|
331 |
+
self.ret_type = ret_type
|
332 |
+
self.arg_ctypes = []
|
333 |
+
|
334 |
+
# Input argument array element index
|
335 |
+
self.input_arg = 0
|
336 |
+
|
337 |
+
# For the case output value is referenced through a parameter rather
|
338 |
+
# than the return value
|
339 |
+
self.ret_arg = None
|
340 |
+
|
341 |
+
|
342 |
+
def _llvm_jit_code(args, expr, signature, callback_type):
|
343 |
+
"""Create a native code function from a SymPy expression"""
|
344 |
+
if callback_type is None:
|
345 |
+
jit = LLVMJitCode(signature)
|
346 |
+
else:
|
347 |
+
jit = LLVMJitCodeCallback(signature)
|
348 |
+
|
349 |
+
jit._create_args(args)
|
350 |
+
jit._create_function_base()
|
351 |
+
jit._create_param_dict(args)
|
352 |
+
strmod = jit._create_function(expr)
|
353 |
+
if False:
|
354 |
+
print("LLVM IR")
|
355 |
+
print(strmod)
|
356 |
+
fptr = jit._compile_function(strmod)
|
357 |
+
return fptr
|
358 |
+
|
359 |
+
|
360 |
+
@doctest_depends_on(modules=('llvmlite', 'scipy'))
|
361 |
+
def llvm_callable(args, expr, callback_type=None):
|
362 |
+
'''Compile function from a SymPy expression
|
363 |
+
|
364 |
+
Expressions are evaluated using double precision arithmetic.
|
365 |
+
Some single argument math functions (exp, sin, cos, etc.) are supported
|
366 |
+
in expressions.
|
367 |
+
|
368 |
+
Parameters
|
369 |
+
==========
|
370 |
+
|
371 |
+
args : List of Symbol
|
372 |
+
Arguments to the generated function. Usually the free symbols in
|
373 |
+
the expression. Currently each one is assumed to convert to
|
374 |
+
a double precision scalar.
|
375 |
+
expr : Expr, or (Replacements, Expr) as returned from 'cse'
|
376 |
+
Expression to compile.
|
377 |
+
callback_type : string
|
378 |
+
Create function with signature appropriate to use as a callback.
|
379 |
+
Currently supported:
|
380 |
+
'scipy.integrate'
|
381 |
+
'scipy.integrate.test'
|
382 |
+
'cubature'
|
383 |
+
|
384 |
+
Returns
|
385 |
+
=======
|
386 |
+
|
387 |
+
Compiled function that can evaluate the expression.
|
388 |
+
|
389 |
+
Examples
|
390 |
+
========
|
391 |
+
|
392 |
+
>>> import sympy.printing.llvmjitcode as jit
|
393 |
+
>>> from sympy.abc import a
|
394 |
+
>>> e = a*a + a + 1
|
395 |
+
>>> e1 = jit.llvm_callable([a], e)
|
396 |
+
>>> e.subs(a, 1.1) # Evaluate via substitution
|
397 |
+
3.31000000000000
|
398 |
+
>>> e1(1.1) # Evaluate using JIT-compiled code
|
399 |
+
3.3100000000000005
|
400 |
+
|
401 |
+
|
402 |
+
Callbacks for integration functions can be JIT compiled.
|
403 |
+
>>> import sympy.printing.llvmjitcode as jit
|
404 |
+
>>> from sympy.abc import a
|
405 |
+
>>> from sympy import integrate
|
406 |
+
>>> from scipy.integrate import quad
|
407 |
+
>>> e = a*a
|
408 |
+
>>> e1 = jit.llvm_callable([a], e, callback_type='scipy.integrate')
|
409 |
+
>>> integrate(e, (a, 0.0, 2.0))
|
410 |
+
2.66666666666667
|
411 |
+
>>> quad(e1, 0.0, 2.0)[0]
|
412 |
+
2.66666666666667
|
413 |
+
|
414 |
+
The 'cubature' callback is for the Python wrapper around the
|
415 |
+
cubature package ( https://github.com/saullocastro/cubature )
|
416 |
+
and ( http://ab-initio.mit.edu/wiki/index.php/Cubature )
|
417 |
+
|
418 |
+
There are two signatures for the SciPy integration callbacks.
|
419 |
+
The first ('scipy.integrate') is the function to be passed to the
|
420 |
+
integration routine, and will pass the signature checks.
|
421 |
+
The second ('scipy.integrate.test') is only useful for directly calling
|
422 |
+
the function using ctypes variables. It will not pass the signature checks
|
423 |
+
for scipy.integrate.
|
424 |
+
|
425 |
+
The return value from the cse module can also be compiled. This
|
426 |
+
can improve the performance of the compiled function. If multiple
|
427 |
+
expressions are given to cse, the compiled function returns a tuple.
|
428 |
+
The 'cubature' callback handles multiple expressions (set `fdim`
|
429 |
+
to match in the integration call.)
|
430 |
+
>>> import sympy.printing.llvmjitcode as jit
|
431 |
+
>>> from sympy import cse
|
432 |
+
>>> from sympy.abc import x,y
|
433 |
+
>>> e1 = x*x + y*y
|
434 |
+
>>> e2 = 4*(x*x + y*y) + 8.0
|
435 |
+
>>> after_cse = cse([e1,e2])
|
436 |
+
>>> after_cse
|
437 |
+
([(x0, x**2), (x1, y**2)], [x0 + x1, 4*x0 + 4*x1 + 8.0])
|
438 |
+
>>> j1 = jit.llvm_callable([x,y], after_cse)
|
439 |
+
>>> j1(1.0, 2.0)
|
440 |
+
(5.0, 28.0)
|
441 |
+
'''
|
442 |
+
|
443 |
+
if not llvmlite:
|
444 |
+
raise ImportError("llvmlite is required for llvmjitcode")
|
445 |
+
|
446 |
+
signature = CodeSignature(ctypes.py_object)
|
447 |
+
|
448 |
+
arg_ctypes = []
|
449 |
+
if callback_type is None:
|
450 |
+
for _ in args:
|
451 |
+
arg_ctype = ctypes.c_double
|
452 |
+
arg_ctypes.append(arg_ctype)
|
453 |
+
elif callback_type in ('scipy.integrate', 'scipy.integrate.test'):
|
454 |
+
signature.ret_type = ctypes.c_double
|
455 |
+
arg_ctypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_double)]
|
456 |
+
arg_ctypes_formal = [ctypes.c_int, ctypes.c_double]
|
457 |
+
signature.input_arg = 1
|
458 |
+
elif callback_type == 'cubature':
|
459 |
+
arg_ctypes = [ctypes.c_int,
|
460 |
+
ctypes.POINTER(ctypes.c_double),
|
461 |
+
ctypes.c_void_p,
|
462 |
+
ctypes.c_int,
|
463 |
+
ctypes.POINTER(ctypes.c_double)
|
464 |
+
]
|
465 |
+
signature.ret_type = ctypes.c_int
|
466 |
+
signature.input_arg = 1
|
467 |
+
signature.ret_arg = 4
|
468 |
+
else:
|
469 |
+
raise ValueError("Unknown callback type: %s" % callback_type)
|
470 |
+
|
471 |
+
signature.arg_ctypes = arg_ctypes
|
472 |
+
|
473 |
+
fptr = _llvm_jit_code(args, expr, signature, callback_type)
|
474 |
+
|
475 |
+
if callback_type and callback_type == 'scipy.integrate':
|
476 |
+
arg_ctypes = arg_ctypes_formal
|
477 |
+
|
478 |
+
# PYFUNCTYPE holds the GIL which is needed to prevent a segfault when
|
479 |
+
# calling PyFloat_FromDouble on Python 3.10. Probably it is better to use
|
480 |
+
# ctypes.c_double when returning a float rather than using ctypes.py_object
|
481 |
+
# and returning a PyFloat from inside the jitted function (i.e. let ctypes
|
482 |
+
# handle the conversion from double to PyFloat).
|
483 |
+
if signature.ret_type == ctypes.py_object:
|
484 |
+
FUNCTYPE = ctypes.PYFUNCTYPE
|
485 |
+
else:
|
486 |
+
FUNCTYPE = ctypes.CFUNCTYPE
|
487 |
+
|
488 |
+
cfunc = FUNCTYPE(signature.ret_type, *arg_ctypes)(fptr)
|
489 |
+
return cfunc
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/maple.py
ADDED
@@ -0,0 +1,311 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
1 |
+
"""
|
2 |
+
Maple code printer
|
3 |
+
|
4 |
+
The MapleCodePrinter converts single SymPy expressions into single
|
5 |
+
Maple expressions, using the functions defined in the Maple objects where possible.
|
6 |
+
|
7 |
+
|
8 |
+
FIXME: This module is still under actively developed. Some functions may be not completed.
|
9 |
+
"""
|
10 |
+
|
11 |
+
from sympy.core import S
|
12 |
+
from sympy.core.numbers import Integer, IntegerConstant, equal_valued
|
13 |
+
from sympy.printing.codeprinter import CodePrinter
|
14 |
+
from sympy.printing.precedence import precedence, PRECEDENCE
|
15 |
+
|
16 |
+
import sympy
|
17 |
+
|
18 |
+
_known_func_same_name = (
|
19 |
+
'sin', 'cos', 'tan', 'sec', 'csc', 'cot', 'sinh', 'cosh', 'tanh', 'sech',
|
20 |
+
'csch', 'coth', 'exp', 'floor', 'factorial', 'bernoulli', 'euler',
|
21 |
+
'fibonacci', 'gcd', 'lcm', 'conjugate', 'Ci', 'Chi', 'Ei', 'Li', 'Si', 'Shi',
|
22 |
+
'erf', 'erfc', 'harmonic', 'LambertW',
|
23 |
+
'sqrt', # For automatic rewrites
|
24 |
+
)
|
25 |
+
|
26 |
+
known_functions = {
|
27 |
+
# SymPy -> Maple
|
28 |
+
'Abs': 'abs',
|
29 |
+
'log': 'ln',
|
30 |
+
'asin': 'arcsin',
|
31 |
+
'acos': 'arccos',
|
32 |
+
'atan': 'arctan',
|
33 |
+
'asec': 'arcsec',
|
34 |
+
'acsc': 'arccsc',
|
35 |
+
'acot': 'arccot',
|
36 |
+
'asinh': 'arcsinh',
|
37 |
+
'acosh': 'arccosh',
|
38 |
+
'atanh': 'arctanh',
|
39 |
+
'asech': 'arcsech',
|
40 |
+
'acsch': 'arccsch',
|
41 |
+
'acoth': 'arccoth',
|
42 |
+
'ceiling': 'ceil',
|
43 |
+
'Max' : 'max',
|
44 |
+
'Min' : 'min',
|
45 |
+
|
46 |
+
'factorial2': 'doublefactorial',
|
47 |
+
'RisingFactorial': 'pochhammer',
|
48 |
+
'besseli': 'BesselI',
|
49 |
+
'besselj': 'BesselJ',
|
50 |
+
'besselk': 'BesselK',
|
51 |
+
'bessely': 'BesselY',
|
52 |
+
'hankelh1': 'HankelH1',
|
53 |
+
'hankelh2': 'HankelH2',
|
54 |
+
'airyai': 'AiryAi',
|
55 |
+
'airybi': 'AiryBi',
|
56 |
+
'appellf1': 'AppellF1',
|
57 |
+
'fresnelc': 'FresnelC',
|
58 |
+
'fresnels': 'FresnelS',
|
59 |
+
'lerchphi' : 'LerchPhi',
|
60 |
+
}
|
61 |
+
|
62 |
+
for _func in _known_func_same_name:
|
63 |
+
known_functions[_func] = _func
|
64 |
+
|
65 |
+
number_symbols = {
|
66 |
+
# SymPy -> Maple
|
67 |
+
S.Pi: 'Pi',
|
68 |
+
S.Exp1: 'exp(1)',
|
69 |
+
S.Catalan: 'Catalan',
|
70 |
+
S.EulerGamma: 'gamma',
|
71 |
+
S.GoldenRatio: '(1/2 + (1/2)*sqrt(5))'
|
72 |
+
}
|
73 |
+
|
74 |
+
spec_relational_ops = {
|
75 |
+
# SymPy -> Maple
|
76 |
+
'==': '=',
|
77 |
+
'!=': '<>'
|
78 |
+
}
|
79 |
+
|
80 |
+
not_supported_symbol = [
|
81 |
+
S.ComplexInfinity
|
82 |
+
]
|
83 |
+
|
84 |
+
class MapleCodePrinter(CodePrinter):
|
85 |
+
"""
|
86 |
+
Printer which converts a SymPy expression into a maple code.
|
87 |
+
"""
|
88 |
+
printmethod = "_maple"
|
89 |
+
language = "maple"
|
90 |
+
|
91 |
+
_default_settings = {
|
92 |
+
'order': None,
|
93 |
+
'full_prec': 'auto',
|
94 |
+
'human': True,
|
95 |
+
'inline': True,
|
96 |
+
'allow_unknown_functions': True,
|
97 |
+
}
|
98 |
+
|
99 |
+
def __init__(self, settings=None):
|
100 |
+
if settings is None:
|
101 |
+
settings = {}
|
102 |
+
super().__init__(settings)
|
103 |
+
self.known_functions = dict(known_functions)
|
104 |
+
userfuncs = settings.get('user_functions', {})
|
105 |
+
self.known_functions.update(userfuncs)
|
106 |
+
|
107 |
+
def _get_statement(self, codestring):
|
108 |
+
return "%s;" % codestring
|
109 |
+
|
110 |
+
def _get_comment(self, text):
|
111 |
+
return "# {}".format(text)
|
112 |
+
|
113 |
+
def _declare_number_const(self, name, value):
|
114 |
+
return "{} := {};".format(name,
|
115 |
+
value.evalf(self._settings['precision']))
|
116 |
+
|
117 |
+
def _format_code(self, lines):
|
118 |
+
return lines
|
119 |
+
|
120 |
+
def _print_tuple(self, expr):
|
121 |
+
return self._print(list(expr))
|
122 |
+
|
123 |
+
def _print_Tuple(self, expr):
|
124 |
+
return self._print(list(expr))
|
125 |
+
|
126 |
+
def _print_Assignment(self, expr):
|
127 |
+
lhs = self._print(expr.lhs)
|
128 |
+
rhs = self._print(expr.rhs)
|
129 |
+
return "{lhs} := {rhs}".format(lhs=lhs, rhs=rhs)
|
130 |
+
|
131 |
+
def _print_Pow(self, expr, **kwargs):
|
132 |
+
PREC = precedence(expr)
|
133 |
+
if equal_valued(expr.exp, -1):
|
134 |
+
return '1/%s' % (self.parenthesize(expr.base, PREC))
|
135 |
+
elif equal_valued(expr.exp, 0.5):
|
136 |
+
return 'sqrt(%s)' % self._print(expr.base)
|
137 |
+
elif equal_valued(expr.exp, -0.5):
|
138 |
+
return '1/sqrt(%s)' % self._print(expr.base)
|
139 |
+
else:
|
140 |
+
return '{base}^{exp}'.format(
|
141 |
+
base=self.parenthesize(expr.base, PREC),
|
142 |
+
exp=self.parenthesize(expr.exp, PREC))
|
143 |
+
|
144 |
+
def _print_Piecewise(self, expr):
|
145 |
+
if (expr.args[-1].cond is not True) and (expr.args[-1].cond != S.BooleanTrue):
|
146 |
+
# We need the last conditional to be a True, otherwise the resulting
|
147 |
+
# function may not return a result.
|
148 |
+
raise ValueError("All Piecewise expressions must contain an "
|
149 |
+
"(expr, True) statement to be used as a default "
|
150 |
+
"condition. Without one, the generated "
|
151 |
+
"expression may not evaluate to anything under "
|
152 |
+
"some condition.")
|
153 |
+
_coup_list = [
|
154 |
+
("{c}, {e}".format(c=self._print(c),
|
155 |
+
e=self._print(e)) if c is not True and c is not S.BooleanTrue else "{e}".format(
|
156 |
+
e=self._print(e)))
|
157 |
+
for e, c in expr.args]
|
158 |
+
_inbrace = ', '.join(_coup_list)
|
159 |
+
return 'piecewise({_inbrace})'.format(_inbrace=_inbrace)
|
160 |
+
|
161 |
+
def _print_Rational(self, expr):
|
162 |
+
p, q = int(expr.p), int(expr.q)
|
163 |
+
return "{p}/{q}".format(p=str(p), q=str(q))
|
164 |
+
|
165 |
+
def _print_Relational(self, expr):
|
166 |
+
PREC=precedence(expr)
|
167 |
+
lhs_code = self.parenthesize(expr.lhs, PREC)
|
168 |
+
rhs_code = self.parenthesize(expr.rhs, PREC)
|
169 |
+
op = expr.rel_op
|
170 |
+
if op in spec_relational_ops:
|
171 |
+
op = spec_relational_ops[op]
|
172 |
+
return "{lhs} {rel_op} {rhs}".format(lhs=lhs_code, rel_op=op, rhs=rhs_code)
|
173 |
+
|
174 |
+
def _print_NumberSymbol(self, expr):
|
175 |
+
return number_symbols[expr]
|
176 |
+
|
177 |
+
def _print_NegativeInfinity(self, expr):
|
178 |
+
return '-infinity'
|
179 |
+
|
180 |
+
def _print_Infinity(self, expr):
|
181 |
+
return 'infinity'
|
182 |
+
|
183 |
+
def _print_Idx(self, expr):
|
184 |
+
return self._print(expr.label)
|
185 |
+
|
186 |
+
def _print_BooleanTrue(self, expr):
|
187 |
+
return "true"
|
188 |
+
|
189 |
+
def _print_BooleanFalse(self, expr):
|
190 |
+
return "false"
|
191 |
+
|
192 |
+
def _print_bool(self, expr):
|
193 |
+
return 'true' if expr else 'false'
|
194 |
+
|
195 |
+
def _print_NaN(self, expr):
|
196 |
+
return 'undefined'
|
197 |
+
|
198 |
+
def _get_matrix(self, expr, sparse=False):
|
199 |
+
if S.Zero in expr.shape:
|
200 |
+
_strM = 'Matrix([], storage = {storage})'.format(
|
201 |
+
storage='sparse' if sparse else 'rectangular')
|
202 |
+
else:
|
203 |
+
_strM = 'Matrix({list}, storage = {storage})'.format(
|
204 |
+
list=self._print(expr.tolist()),
|
205 |
+
storage='sparse' if sparse else 'rectangular')
|
206 |
+
return _strM
|
207 |
+
|
208 |
+
def _print_MatrixElement(self, expr):
|
209 |
+
return "{parent}[{i_maple}, {j_maple}]".format(
|
210 |
+
parent=self.parenthesize(expr.parent, PRECEDENCE["Atom"], strict=True),
|
211 |
+
i_maple=self._print(expr.i + 1),
|
212 |
+
j_maple=self._print(expr.j + 1))
|
213 |
+
|
214 |
+
def _print_MatrixBase(self, expr):
|
215 |
+
return self._get_matrix(expr, sparse=False)
|
216 |
+
|
217 |
+
def _print_SparseRepMatrix(self, expr):
|
218 |
+
return self._get_matrix(expr, sparse=True)
|
219 |
+
|
220 |
+
def _print_Identity(self, expr):
|
221 |
+
if isinstance(expr.rows, (Integer, IntegerConstant)):
|
222 |
+
return self._print(sympy.SparseMatrix(expr))
|
223 |
+
else:
|
224 |
+
return "Matrix({var_size}, shape = identity)".format(var_size=self._print(expr.rows))
|
225 |
+
|
226 |
+
def _print_MatMul(self, expr):
|
227 |
+
PREC=precedence(expr)
|
228 |
+
_fact_list = list(expr.args)
|
229 |
+
_const = None
|
230 |
+
if not isinstance(_fact_list[0], (sympy.MatrixBase, sympy.MatrixExpr,
|
231 |
+
sympy.MatrixSlice, sympy.MatrixSymbol)):
|
232 |
+
_const, _fact_list = _fact_list[0], _fact_list[1:]
|
233 |
+
|
234 |
+
if _const is None or _const == 1:
|
235 |
+
return '.'.join(self.parenthesize(_m, PREC) for _m in _fact_list)
|
236 |
+
else:
|
237 |
+
return '{c}*{m}'.format(c=_const, m='.'.join(self.parenthesize(_m, PREC) for _m in _fact_list))
|
238 |
+
|
239 |
+
def _print_MatPow(self, expr):
|
240 |
+
# This function requires LinearAlgebra Function in Maple
|
241 |
+
return 'MatrixPower({A}, {n})'.format(A=self._print(expr.base), n=self._print(expr.exp))
|
242 |
+
|
243 |
+
def _print_HadamardProduct(self, expr):
|
244 |
+
PREC = precedence(expr)
|
245 |
+
_fact_list = list(expr.args)
|
246 |
+
return '*'.join(self.parenthesize(_m, PREC) for _m in _fact_list)
|
247 |
+
|
248 |
+
def _print_Derivative(self, expr):
|
249 |
+
_f, (_var, _order) = expr.args
|
250 |
+
|
251 |
+
if _order != 1:
|
252 |
+
_second_arg = '{var}${order}'.format(var=self._print(_var),
|
253 |
+
order=self._print(_order))
|
254 |
+
else:
|
255 |
+
_second_arg = '{var}'.format(var=self._print(_var))
|
256 |
+
return 'diff({func_expr}, {sec_arg})'.format(func_expr=self._print(_f), sec_arg=_second_arg)
|
257 |
+
|
258 |
+
|
259 |
+
def maple_code(expr, assign_to=None, **settings):
|
260 |
+
r"""Converts ``expr`` to a string of Maple code.
|
261 |
+
|
262 |
+
Parameters
|
263 |
+
==========
|
264 |
+
|
265 |
+
expr : Expr
|
266 |
+
A SymPy expression to be converted.
|
267 |
+
assign_to : optional
|
268 |
+
When given, the argument is used as the name of the variable to which
|
269 |
+
the expression is assigned. Can be a string, ``Symbol``,
|
270 |
+
``MatrixSymbol``, or ``Indexed`` type. This can be helpful for
|
271 |
+
expressions that generate multi-line statements.
|
272 |
+
precision : integer, optional
|
273 |
+
The precision for numbers such as pi [default=16].
|
274 |
+
user_functions : dict, optional
|
275 |
+
A dictionary where keys are ``FunctionClass`` instances and values are
|
276 |
+
their string representations. Alternatively, the dictionary value can
|
277 |
+
be a list of tuples i.e. [(argument_test, cfunction_string)]. See
|
278 |
+
below for examples.
|
279 |
+
human : bool, optional
|
280 |
+
If True, the result is a single string that may contain some constant
|
281 |
+
declarations for the number symbols. If False, the same information is
|
282 |
+
returned in a tuple of (symbols_to_declare, not_supported_functions,
|
283 |
+
code_text). [default=True].
|
284 |
+
contract: bool, optional
|
285 |
+
If True, ``Indexed`` instances are assumed to obey tensor contraction
|
286 |
+
rules and the corresponding nested loops over indices are generated.
|
287 |
+
Setting contract=False will not generate loops, instead the user is
|
288 |
+
responsible to provide values for the indices in the code.
|
289 |
+
[default=True].
|
290 |
+
inline: bool, optional
|
291 |
+
If True, we try to create single-statement code instead of multiple
|
292 |
+
statements. [default=True].
|
293 |
+
|
294 |
+
"""
|
295 |
+
return MapleCodePrinter(settings).doprint(expr, assign_to)
|
296 |
+
|
297 |
+
|
298 |
+
def print_maple_code(expr, **settings):
|
299 |
+
"""Prints the Maple representation of the given expression.
|
300 |
+
|
301 |
+
See :func:`maple_code` for the meaning of the optional arguments.
|
302 |
+
|
303 |
+
Examples
|
304 |
+
========
|
305 |
+
|
306 |
+
>>> from sympy import print_maple_code, symbols
|
307 |
+
>>> x, y = symbols('x y')
|
308 |
+
>>> print_maple_code(x, assign_to=y)
|
309 |
+
y := x
|
310 |
+
"""
|
311 |
+
print(maple_code(expr, **settings))
|
llmeval-env/lib/python3.10/site-packages/sympy/printing/mathematica.py
ADDED
@@ -0,0 +1,354 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
1 |
+
"""
|
2 |
+
Mathematica code printer
|
3 |
+
"""
|
4 |
+
|
5 |
+
from __future__ import annotations
|
6 |
+
from typing import Any
|
7 |
+
|
8 |
+
from sympy.core import Basic, Expr, Float
|
9 |
+
from sympy.core.sorting import default_sort_key
|
10 |
+
|
11 |
+
from sympy.printing.codeprinter import CodePrinter
|
12 |
+
from sympy.printing.precedence import precedence
|
13 |
+
|
14 |
+
# Used in MCodePrinter._print_Function(self)
|
15 |
+
known_functions = {
|
16 |
+
"exp": [(lambda x: True, "Exp")],
|
17 |
+
"log": [(lambda x: True, "Log")],
|
18 |
+
"sin": [(lambda x: True, "Sin")],
|
19 |
+
"cos": [(lambda x: True, "Cos")],
|
20 |
+
"tan": [(lambda x: True, "Tan")],
|
21 |
+
"cot": [(lambda x: True, "Cot")],
|
22 |
+
"sec": [(lambda x: True, "Sec")],
|
23 |
+
"csc": [(lambda x: True, "Csc")],
|
24 |
+
"asin": [(lambda x: True, "ArcSin")],
|
25 |
+
"acos": [(lambda x: True, "ArcCos")],
|
26 |
+
"atan": [(lambda x: True, "ArcTan")],
|
27 |
+
"acot": [(lambda x: True, "ArcCot")],
|
28 |
+
"asec": [(lambda x: True, "ArcSec")],
|
29 |
+
"acsc": [(lambda x: True, "ArcCsc")],
|
30 |
+
"atan2": [(lambda *x: True, "ArcTan")],
|
31 |
+
"sinh": [(lambda x: True, "Sinh")],
|
32 |
+
"cosh": [(lambda x: True, "Cosh")],
|
33 |
+
"tanh": [(lambda x: True, "Tanh")],
|
34 |
+
"coth": [(lambda x: True, "Coth")],
|
35 |
+
"sech": [(lambda x: True, "Sech")],
|
36 |
+
"csch": [(lambda x: True, "Csch")],
|
37 |
+
"asinh": [(lambda x: True, "ArcSinh")],
|
38 |
+
"acosh": [(lambda x: True, "ArcCosh")],
|
39 |
+
"atanh": [(lambda x: True, "ArcTanh")],
|
40 |
+
"acoth": [(lambda x: True, "ArcCoth")],
|
41 |
+
"asech": [(lambda x: True, "ArcSech")],
|
42 |
+
"acsch": [(lambda x: True, "ArcCsch")],
|
43 |
+
"sinc": [(lambda x: True, "Sinc")],
|
44 |
+
"conjugate": [(lambda x: True, "Conjugate")],
|
45 |
+
"Max": [(lambda *x: True, "Max")],
|
46 |
+
"Min": [(lambda *x: True, "Min")],
|
47 |
+
"erf": [(lambda x: True, "Erf")],
|
48 |
+
"erf2": [(lambda *x: True, "Erf")],
|
49 |
+
"erfc": [(lambda x: True, "Erfc")],
|
50 |
+
"erfi": [(lambda x: True, "Erfi")],
|
51 |
+
"erfinv": [(lambda x: True, "InverseErf")],
|
52 |
+
"erfcinv": [(lambda x: True, "InverseErfc")],
|
53 |
+
"erf2inv": [(lambda *x: True, "InverseErf")],
|
54 |
+
"expint": [(lambda *x: True, "ExpIntegralE")],
|
55 |
+
"Ei": [(lambda x: True, "ExpIntegralEi")],
|
56 |
+
"fresnelc": [(lambda x: True, "FresnelC")],
|
57 |
+
"fresnels": [(lambda x: True, "FresnelS")],
|
58 |
+
"gamma": [(lambda x: True, "Gamma")],
|
59 |
+
"uppergamma": [(lambda *x: True, "Gamma")],
|
60 |
+
"polygamma": [(lambda *x: True, "PolyGamma")],
|
61 |
+
"loggamma": [(lambda x: True, "LogGamma")],
|
62 |
+
"beta": [(lambda *x: True, "Beta")],
|
63 |
+
"Ci": [(lambda x: True, "CosIntegral")],
|
64 |
+
"Si": [(lambda x: True, "SinIntegral")],
|
65 |
+
"Chi": [(lambda x: True, "CoshIntegral")],
|
66 |
+
"Shi": [(lambda x: True, "SinhIntegral")],
|
67 |
+
"li": [(lambda x: True, "LogIntegral")],
|
68 |
+
"factorial": [(lambda x: True, "Factorial")],
|
69 |
+
"factorial2": [(lambda x: True, "Factorial2")],
|
70 |
+
"subfactorial": [(lambda x: True, "Subfactorial")],
|
71 |
+
"catalan": [(lambda x: True, "CatalanNumber")],
|
72 |
+
"harmonic": [(lambda *x: True, "HarmonicNumber")],
|
73 |
+
"lucas": [(lambda x: True, "LucasL")],
|
74 |
+
"RisingFactorial": [(lambda *x: True, "Pochhammer")],
|
75 |
+
"FallingFactorial": [(lambda *x: True, "FactorialPower")],
|
76 |
+
"laguerre": [(lambda *x: True, "LaguerreL")],
|
77 |
+
"assoc_laguerre": [(lambda *x: True, "LaguerreL")],
|
78 |
+
"hermite": [(lambda *x: True, "HermiteH")],
|
79 |
+
"jacobi": [(lambda *x: True, "JacobiP")],
|
80 |
+
"gegenbauer": [(lambda *x: True, "GegenbauerC")],
|
81 |
+
"chebyshevt": [(lambda *x: True, "ChebyshevT")],
|
82 |
+
"chebyshevu": [(lambda *x: True, "ChebyshevU")],
|
83 |
+
"legendre": [(lambda *x: True, "LegendreP")],
|
84 |
+
"assoc_legendre": [(lambda *x: True, "LegendreP")],
|
85 |
+
"mathieuc": [(lambda *x: True, "MathieuC")],
|
86 |
+
"mathieus": [(lambda *x: True, "MathieuS")],
|
87 |
+
"mathieucprime": [(lambda *x: True, "MathieuCPrime")],
|
88 |
+
"mathieusprime": [(lambda *x: True, "MathieuSPrime")],
|
89 |
+
"stieltjes": [(lambda x: True, "StieltjesGamma")],
|
90 |
+
"elliptic_e": [(lambda *x: True, "EllipticE")],
|
91 |
+
"elliptic_f": [(lambda *x: True, "EllipticE")],
|
92 |
+
"elliptic_k": [(lambda x: True, "EllipticK")],
|
93 |
+
"elliptic_pi": [(lambda *x: True, "EllipticPi")],
|
94 |
+
"zeta": [(lambda *x: True, "Zeta")],
|
95 |
+
"dirichlet_eta": [(lambda x: True, "DirichletEta")],
|
96 |
+
"riemann_xi": [(lambda x: True, "RiemannXi")],
|
97 |
+
"besseli": [(lambda *x: True, "BesselI")],
|
98 |
+
"besselj": [(lambda *x: True, "BesselJ")],
|
99 |
+
"besselk": [(lambda *x: True, "BesselK")],
|
100 |
+
"bessely": [(lambda *x: True, "BesselY")],
|
101 |
+
"hankel1": [(lambda *x: True, "HankelH1")],
|
102 |
+
"hankel2": [(lambda *x: True, "HankelH2")],
|
103 |
+
"airyai": [(lambda x: True, "AiryAi")],
|
104 |
+
"airybi": [(lambda x: True, "AiryBi")],
|
105 |
+
"airyaiprime": [(lambda x: True, "AiryAiPrime")],
|
106 |
+
"airybiprime": [(lambda x: True, "AiryBiPrime")],
|
107 |
+
"polylog": [(lambda *x: True, "PolyLog")],
|
108 |
+
"lerchphi": [(lambda *x: True, "LerchPhi")],
|
109 |
+
"gcd": [(lambda *x: True, "GCD")],
|
110 |
+
"lcm": [(lambda *x: True, "LCM")],
|
111 |
+
"jn": [(lambda *x: True, "SphericalBesselJ")],
|
112 |
+
"yn": [(lambda *x: True, "SphericalBesselY")],
|
113 |
+
"hyper": [(lambda *x: True, "HypergeometricPFQ")],
|
114 |
+
"meijerg": [(lambda *x: True, "MeijerG")],
|
115 |
+
"appellf1": [(lambda *x: True, "AppellF1")],
|
116 |
+
"DiracDelta": [(lambda x: True, "DiracDelta")],
|
117 |
+
"Heaviside": [(lambda x: True, "HeavisideTheta")],
|
118 |
+
"KroneckerDelta": [(lambda *x: True, "KroneckerDelta")],
|
119 |
+
"sqrt": [(lambda x: True, "Sqrt")], # For automatic rewrites
|
120 |
+
}
|
121 |
+
|
122 |
+
|
123 |
+
class MCodePrinter(CodePrinter):
|
124 |
+
"""A printer to convert Python expressions to
|
125 |
+
strings of the Wolfram's Mathematica code
|
126 |
+
"""
|
127 |
+
printmethod = "_mcode"
|
128 |
+
language = "Wolfram Language"
|
129 |
+
|
130 |
+
_default_settings: dict[str, Any] = {
|
131 |
+
'order': None,
|
132 |
+
'full_prec': 'auto',
|
133 |
+
'precision': 15,
|
134 |
+
'user_functions': {},
|
135 |
+
'human': True,
|
136 |
+
'allow_unknown_functions': False,
|
137 |
+
}
|
138 |
+
|
139 |
+
_number_symbols: set[tuple[Expr, Float]] = set()
|
140 |
+
_not_supported: set[Basic] = set()
|
141 |
+
|
142 |
+
def __init__(self, settings={}):
|
143 |
+
"""Register function mappings supplied by user"""
|
144 |
+
CodePrinter.__init__(self, settings)
|
145 |
+
self.known_functions = dict(known_functions)
|
146 |
+
userfuncs = settings.get('user_functions', {}).copy()
|
147 |
+
for k, v in userfuncs.items():
|
148 |
+
if not isinstance(v, list):
|
149 |
+
userfuncs[k] = [(lambda *x: True, v)]
|
150 |
+
self.known_functions.update(userfuncs)
|
151 |
+
|
152 |
+
def _format_code(self, lines):
|
153 |
+
return lines
|
154 |
+
|
155 |
+
def _print_Pow(self, expr):
|
156 |
+
PREC = precedence(expr)
|
157 |
+
return '%s^%s' % (self.parenthesize(expr.base, PREC),
|
158 |
+
self.parenthesize(expr.exp, PREC))
|
159 |
+
|
160 |
+
def _print_Mul(self, expr):
|
161 |
+
PREC = precedence(expr)
|
162 |
+
c, nc = expr.args_cnc()
|
163 |
+
res = super()._print_Mul(expr.func(*c))
|
164 |
+
if nc:
|
165 |
+
res += '*'
|
166 |
+
res += '**'.join(self.parenthesize(a, PREC) for a in nc)
|
167 |
+
return res
|
168 |
+
|
169 |
+
def _print_Relational(self, expr):
|
170 |
+
lhs_code = self._print(expr.lhs)
|
171 |
+
rhs_code = self._print(expr.rhs)
|
172 |
+
op = expr.rel_op
|
173 |
+
return "{} {} {}".format(lhs_code, op, rhs_code)
|
174 |
+
|
175 |
+
# Primitive numbers
|
176 |
+
def _print_Zero(self, expr):
|
177 |
+
return '0'
|
178 |
+
|
179 |
+
def _print_One(self, expr):
|
180 |
+
return '1'
|
181 |
+
|
182 |
+
def _print_NegativeOne(self, expr):
|
183 |
+
return '-1'
|
184 |
+
|
185 |
+
def _print_Half(self, expr):
|
186 |
+
return '1/2'
|
187 |
+
|
188 |
+
def _print_ImaginaryUnit(self, expr):
|
189 |
+
return 'I'
|
190 |
+
|
191 |
+
|
192 |
+
# Infinity and invalid numbers
|
193 |
+
def _print_Infinity(self, expr):
|
194 |
+
return 'Infinity'
|
195 |
+
|
196 |
+
def _print_NegativeInfinity(self, expr):
|
197 |
+
return '-Infinity'
|
198 |
+
|
199 |
+
def _print_ComplexInfinity(self, expr):
|
200 |
+
return 'ComplexInfinity'
|
201 |
+
|
202 |
+
def _print_NaN(self, expr):
|
203 |
+
return 'Indeterminate'
|
204 |
+
|
205 |
+
|
206 |
+
# Mathematical constants
|
207 |
+
def _print_Exp1(self, expr):
|
208 |
+
return 'E'
|
209 |
+
|
210 |
+
def _print_Pi(self, expr):
|
211 |
+
return 'Pi'
|
212 |
+
|
213 |
+
def _print_GoldenRatio(self, expr):
|
214 |
+
return 'GoldenRatio'
|
215 |
+
|
216 |
+
def _print_TribonacciConstant(self, expr):
|
217 |
+
expanded = expr.expand(func=True)
|
218 |
+
PREC = precedence(expr)
|
219 |
+
return self.parenthesize(expanded, PREC)
|
220 |
+
|
221 |
+
def _print_EulerGamma(self, expr):
|
222 |
+
return 'EulerGamma'
|
223 |
+
|
224 |
+
def _print_Catalan(self, expr):
|
225 |
+
return 'Catalan'
|
226 |
+
|
227 |
+
|
228 |
+
def _print_list(self, expr):
|
229 |
+
return '{' + ', '.join(self.doprint(a) for a in expr) + '}'
|
230 |
+
_print_tuple = _print_list
|
231 |
+
_print_Tuple = _print_list
|
232 |
+
|
233 |
+
def _print_ImmutableDenseMatrix(self, expr):
|
234 |
+
return self.doprint(expr.tolist())
|
235 |
+
|
236 |
+
def _print_ImmutableSparseMatrix(self, expr):
|
237 |
+
|
238 |
+
def print_rule(pos, val):
|
239 |
+
return '{} -> {}'.format(
|
240 |
+
self.doprint((pos[0]+1, pos[1]+1)), self.doprint(val))
|
241 |
+
|
242 |
+
def print_data():
|
243 |
+
items = sorted(expr.todok().items(), key=default_sort_key)
|
244 |
+
return '{' + \
|
245 |
+
', '.join(print_rule(k, v) for k, v in items) + \
|
246 |
+
'}'
|
247 |
+
|
248 |
+
def print_dims():
|
249 |
+
return self.doprint(expr.shape)
|
250 |
+
|
251 |
+
return 'SparseArray[{}, {}]'.format(print_data(), print_dims())
|
252 |
+
|
253 |
+
def _print_ImmutableDenseNDimArray(self, expr):
|
254 |
+
return self.doprint(expr.tolist())
|
255 |
+
|
256 |
+
def _print_ImmutableSparseNDimArray(self, expr):
|
257 |
+
def print_string_list(string_list):
|
258 |
+
return '{' + ', '.join(a for a in string_list) + '}'
|
259 |
+
|
260 |
+
def to_mathematica_index(*args):
|
261 |
+
"""Helper function to change Python style indexing to
|
262 |
+
Pathematica indexing.
|
263 |
+
|
264 |
+
Python indexing (0, 1 ... n-1)
|
265 |
+
-> Mathematica indexing (1, 2 ... n)
|
266 |
+
"""
|
267 |
+
return tuple(i + 1 for i in args)
|
268 |
+
|
269 |
+
def print_rule(pos, val):
|
270 |
+
"""Helper function to print a rule of Mathematica"""
|
271 |
+
return '{} -> {}'.format(self.doprint(pos), self.doprint(val))
|
272 |
+
|
273 |
+
def print_data():
|
274 |
+
"""Helper function to print data part of Mathematica
|
275 |
+
sparse array.
|
276 |
+
|
277 |
+
It uses the fourth notation ``SparseArray[data,{d1,d2,...}]``
|
278 |
+
from
|
279 |
+
https://reference.wolfram.com/language/ref/SparseArray.html
|
280 |
+
|
281 |
+
``data`` must be formatted with rule.
|
282 |
+
"""
|
283 |
+
return print_string_list(
|
284 |
+
[print_rule(
|
285 |
+
to_mathematica_index(*(expr._get_tuple_index(key))),
|
286 |
+
value)
|
287 |
+
for key, value in sorted(expr._sparse_array.items())]
|
288 |
+
)
|
289 |
+
|
290 |
+
def print_dims():
|
291 |
+
"""Helper function to print dimensions part of Mathematica
|
292 |
+
sparse array.
|
293 |
+
|
294 |
+
It uses the fourth notation ``SparseArray[data,{d1,d2,...}]``
|
295 |
+
from
|
296 |
+
https://reference.wolfram.com/language/ref/SparseArray.html
|
297 |
+
"""
|
298 |
+
return self.doprint(expr.shape)
|
299 |
+
|
300 |
+
return 'SparseArray[{}, {}]'.format(print_data(), print_dims())
|
301 |
+
|
302 |
+
def _print_Function(self, expr):
|
303 |
+
if expr.func.__name__ in self.known_functions:
|
304 |
+
cond_mfunc = self.known_functions[expr.func.__name__]
|
305 |
+
for cond, mfunc in cond_mfunc:
|
306 |
+
if cond(*expr.args):
|
307 |
+
return "%s[%s]" % (mfunc, self.stringify(expr.args, ", "))
|
308 |
+
elif expr.func.__name__ in self._rewriteable_functions:
|
309 |
+
# Simple rewrite to supported function possible
|
310 |
+
target_f, required_fs = self._rewriteable_functions[expr.func.__name__]
|
311 |
+
if self._can_print(target_f) and all(self._can_print(f) for f in required_fs):
|
312 |
+
return self._print(expr.rewrite(target_f))
|
313 |
+
return expr.func.__name__ + "[%s]" % self.stringify(expr.args, ", ")
|
314 |
+
|
315 |
+
_print_MinMaxBase = _print_Function
|
316 |
+
|
317 |
+
def _print_LambertW(self, expr):
|
318 |
+
if len(expr.args) == 1:
|
319 |
+
return "ProductLog[{}]".format(self._print(expr.args[0]))
|
320 |
+
return "ProductLog[{}, {}]".format(
|
321 |
+
self._print(expr.args[1]), self._print(expr.args[0]))
|
322 |
+
|
323 |
+
def _print_Integral(self, expr):
|
324 |
+
if len(expr.variables) == 1 and not expr.limits[0][1:]:
|
325 |
+
args = [expr.args[0], expr.variables[0]]
|
326 |
+
else:
|
327 |
+
args = expr.args
|
328 |
+
return "Hold[Integrate[" + ', '.join(self.doprint(a) for a in args) + "]]"
|
329 |
+
|
330 |
+
def _print_Sum(self, expr):
|
331 |
+
return "Hold[Sum[" + ', '.join(self.doprint(a) for a in expr.args) + "]]"
|
332 |
+
|
333 |
+
def _print_Derivative(self, expr):
|
334 |
+
dexpr = expr.expr
|
335 |
+
dvars = [i[0] if i[1] == 1 else i for i in expr.variable_count]
|
336 |
+
return "Hold[D[" + ', '.join(self.doprint(a) for a in [dexpr] + dvars) + "]]"
|
337 |
+
|
338 |
+
|
339 |
+
def _get_comment(self, text):
|
340 |
+
return "(* {} *)".format(text)
|
341 |
+
|
342 |
+
|
343 |
+
def mathematica_code(expr, **settings):
|
344 |
+
r"""Converts an expr to a string of the Wolfram Mathematica code
|
345 |
+
|
346 |
+
Examples
|
347 |
+
========
|
348 |
+
|
349 |
+
>>> from sympy import mathematica_code as mcode, symbols, sin
|
350 |
+
>>> x = symbols('x')
|
351 |
+
>>> mcode(sin(x).series(x).removeO())
|
352 |
+
'(1/120)*x^5 - 1/6*x^3 + x'
|
353 |
+
"""
|
354 |
+
return MCodePrinter(settings).doprint(expr)
|