text
stringlengths 0
15.7k
| source
stringlengths 6
112
|
|---|---|
to HTTP status name statusCode | lns3.scpt |
set statusCode to _support's asIntegerParameter(statusCode, "") | lns3.scpt |
return (current application's NSHTTPURLResponse's localizedStringForStatusCode:statusCode) as text | lns3.scpt |
_error("HTTP status name", eText, eNumber, eFrom, eTo) | lns3.scpt |
end HTTP status name | lns3.scpt |
property _support : a reference to script "TypeSupport" | lns3.scpt |
_support's throwCommandError("LIBRARY_NAME", handlerName, eText, eNumber, eFrom, eTo) | lns3.scpt |
to SOME HANDLER directParam USING usingParam FLAG flagParam : (false) | lns3.scpt |
set directParam to _support's asTextParameter(directParam, "") | lns3.scpt |
set usingParam to _support's asWholeNumberParameter(usingParam, "USING") | lns3.scpt |
set flagParam to _support's asBooleanParameter(flagParam, "FLAG") | lns3.scpt |
_error("SOME HANDLER", eText, eNumber, eFrom, eTo) | lns3.scpt |
end SOME HANDLER | lns3.scpt |
The 'support' section contains standard boilerplate code for rethrowing handler errors with the name of the library included; only the `_error` handler's "LIBRARY_NAME" text needs changed to contain the library's actual name. | lns3.scpt |
Each public handler should also contain a `try` block that catches all errors occurring within that handler, and rethrow them via the supporting `_error` handler; again, "SOME HANDLER" should be changed to match the handler's actual name. | lns3.scpt |
These boilerplate idioms help to compensate for AppleScript's own weak error reporting, which only indicates that an error has occurred but does not tell the user where. | lns3.scpt |
to hasHandler(handlerRef) -- handlerRef must be `a reference to HANDLER of SCRIPT` | lns3.scpt |
try -- horrible hack to check if a script object has a specific handler | lns3.scpt |
handlerRef as handler -- dereference and type check; this raises -1700 on failure | lns3.scpt |
on error number -1700 -- the referred-to script object slot doesn't exist, or isn't a handler | lns3.scpt |
end hasHandler | lns3.scpt |
to _throwInvalidParameter(theValue, parameterName, expectedType, errorDescription, errorNumber) -- private | lns3.scpt |
if parameterName's length = 0 then | lns3.scpt |
set parameterName to "direct" | lns3.scpt |
set parameterName to "‘" & parameterName & "’" | lns3.scpt |
error "Invalid " & parameterName & " parameter: " & errorDescription number errorNumber from theValue to expectedType | lns3.scpt |
end _throwInvalidParameter | lns3.scpt |
to throwInvalidParameter(theValue, parameterName, expectedType, errorDescription) | lns3.scpt |
_throwInvalidParameter(theValue, parameterName, expectedType, errorDescription, -1703) | lns3.scpt |
end throwInvalidParameter | lns3.scpt |
to throwInvalidParameterIndex(theValue, parameterName) -- can't get list item | lns3.scpt |
_throwInvalidParameter(theValue, parameterName, integer, "Index is out of range.", -1728) | lns3.scpt |
end throwInvalidParameterIndex | lns3.scpt |
to throwInvalidParameterType(theValue, parameterName, expectedType, expectedTypeName) | lns3.scpt |
if (count {theValue} each reference) ≠ 0 then | lns3.scpt |
set actualTypeName to " but received specifier" | lns3.scpt |
set actualTypeName to " but received " & (theValue's class) -- include the value's type name in error message; note: this will display as raw four-char code when terminology isn't available, or may be a custom value in the case of records and scripts, but this can't be helped as it's a limitation of AppleScript itself | lns3.scpt |
set actualTypeName to "" | lns3.scpt |
throwInvalidParameter(theValue, parameterName, expectedType, "Expected " & expectedTypeName & actualTypeName & ".") | lns3.scpt |
end throwInvalidParameterType | lns3.scpt |
to throwInvalidConstantParameter(theValue, parameterName) | lns3.scpt |
throwInvalidParameter(theValue, parameterName, constant, "Not an allowed constant.") | lns3.scpt |
end throwInvalidConstantParameter | lns3.scpt |
to rethrowError(libraryName, handlerName, eText, eNumber, eFrom, eTo, targetObjectName, partialResult) -- targetObjectName and partialResult should be `missing value` if unused; if eTo is unused, AS seems to be to pass `item` | lns3.scpt |
if targetObjectName is missing value then | lns3.scpt |
set eText to libraryName & " library can’t " & handlerName & ": " & eText | lns3.scpt |
set eText to libraryName & " library’s " & targetObjectName & " can’t " & handlerName & ": " & eText | lns3.scpt |
if partialResult is missing value then | lns3.scpt |
error eText number eNumber from eFrom to eTo | lns3.scpt |
error eText number eNumber from eFrom to eTo partial result partialResult | lns3.scpt |
end rethrowError | lns3.scpt |
to throwCommandError(libraryName, handlerName, eText, eNumber, eFrom, eTo) | lns3.scpt |
error rethrowError(libraryName, handlerName, eText, eNumber, eFrom, eTo, missing value, missing value) | lns3.scpt |
end throwCommandError | lns3.scpt |
to throwMethodError(libraryName, targetObjectName, handlerName, eText, eNumber, eFrom, eTo) | lns3.scpt |
error rethrowError(libraryName, handlerName, eText, eNumber, eFrom, eTo, targetObjectName, missing value) | lns3.scpt |
end throwMethodError | lns3.scpt |
to asNumber(theValue) | lns3.scpt |
set theValue to theValue as anything -- make sure ASOC objects are coerced to AS equivalents | lns3.scpt |
if (count {theValue} each list) = 1 and theValue's length = 1 then | lns3.scpt |
set theValue to theValue's item 1 -- unwrap single-item list | lns3.scpt |
if ((count {theValue} each number) = 1 or (count {theValue} each text) = 1 and theValue's length > 0) then | lns3.scpt |
return theValue as number | lns3.scpt |
on error number -1700 -- `theValue as anything` will fail if value is a record (presumably an AS bug) | lns3.scpt |
error "Can’t coerce to number (not a valid number)." number -1700 from theValue to (number) | lns3.scpt |
end asNumber | lns3.scpt |
to asWholeNumber(theValue) | lns3.scpt |
set theNumber to asNumber(theValue) | lns3.scpt |
if theNumber mod 1 ≠ 0 then error "Can’t coerce to whole number (not an integer or non-fractional real)." number -1700 from theValue to (number) | lns3.scpt |
if (theNumber < 0 and theNumber - 1 = theNumber) or (theNumber + 1 = theNumber) then error "Can’t coerce to whole number (can't be represented as real number without losing precision)." number -1700 from theValue to (number) | lns3.scpt |
return theNumber | lns3.scpt |
end asWholeNumber | lns3.scpt |
to asInteger(theValue) | lns3.scpt |
if theNumber mod 1 ≠ 0 then error "Can’t coerce to integer." number -1700 from theValue to (integer) | lns3.scpt |
return theNumber as integer | lns3.scpt |
end asInteger | lns3.scpt |
to asText(theValue) | lns3.scpt |
if (count {theValue} each list) = 1 then | lns3.scpt |
if theValue's length = 1 then | lns3.scpt |
set theValue to theValue's item 1 -- unwrap single-item list (note that nested lists are also disallowed) | lns3.scpt |
if (count {theValue} each list) = 0 then return theValue as text | lns3.scpt |
else if theValue's length = 0 then | lns3.scpt |
error "Can’t coerce to text." number -1700 from theValue to (text) | lns3.scpt |
return theValue as text | lns3.scpt |
end asText | lns3.scpt |
to asList(theValue) | lns3.scpt |
if isNSObject(theValue) and (theValue's isKindOfClass:(current application's NSArray's |class|())) then -- if value is NSArray, coerce it to AS list | lns3.scpt |
set theValue to theValue as list -- note: this also coerces all of the items in the array, which may not be ideal; however, if a handler is coercing to AS list then it probably wants to work with its contents as well, and will most likely want those to be AS values too | lns3.scpt |
if (count {theValue} each list) = 1 then return theValue | lns3.scpt |
return {theValue} | lns3.scpt |
end asList | lns3.scpt |
to asBooleanParameter(theValue, parameterName) | lns3.scpt |
return theValue as boolean | lns3.scpt |
throwInvalidParameterType(theValue, parameterName, boolean, "boolean") | lns3.scpt |
end asBooleanParameter | lns3.scpt |
to asIntegerParameter(theValue, parameterName) | lns3.scpt |
return asWholeNumber(theValue) as integer | lns3.scpt |
throwInvalidParameterType(theValue, parameterName, integer, "integer") | lns3.scpt |
end asIntegerParameter | lns3.scpt |
to asWholeNumberParameter(theValue, parameterName) -- this should be used instead of asIntegerParameter when non-fractional numbers are required but do not have to be specifically of integer type (which is limited in range to ±2^30) | lns3.scpt |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.