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import OpcodeLabels from './opcode-labels.js';
const isUndefined = a => typeof a === 'undefined';
const circularReplacer = () => {
const stack = new Set();
return function replacer(_, value) {
if (typeof value === "object" && value !== null) {
if (stack.has(value)) return Array.isArray(value) ? "[...]" : "{...}";
stack.add(value);
}
return value;
};
};
/**
* Convert monitors from VM format to what the GUI needs to render.
* - Convert opcode to a label and a category
* @param {string} block.id - The id of the monitor block
* @param {string} block.spriteName - Present only if the monitor applies only to the sprite
* with given target ID. The name of the target sprite when the monitor was created
* @param {string} block.opcode - The opcode of the monitor
* @param {object} block.params - Extra params to the monitor block
* @param {string|number|Array} block.value - The monitor value
* @param {VirtualMachine} block.vm - the VM instance which owns the block
* @return {object} The adapted monitor with label and category
*/
export default function ({id, spriteName, opcode, params, value, vm}) {
// Extension monitors get their labels from the Runtime through `getLabelForOpcode`.
// Other monitors' labels are hard-coded in `OpcodeLabels`.
let {label, category, labelFn} = (vm && vm.runtime.getLabelForOpcode(opcode)) || OpcodeLabels.getLabel(opcode);
// Use labelFn if provided for dynamic labelling (e.g. variables)
if (!isUndefined(labelFn)) label = labelFn(params);
// Append sprite name for sprite-specific monitors
if (spriteName) {
label = `${spriteName}: ${label}`;
}
// If value is a number, round it to six decimal places
if (typeof value === 'number') {
value = Number(value.toFixed(6));
}
// Turn the value to a string, for handle boolean values
if (typeof value === 'boolean') {
value = value.toString();
}
// Lists can contain booleans, which should also be turned to strings
if (Array.isArray(value)) {
value = value.slice();
for (let i = 0; i < value.length; i++) {
const item = value[i];
if (typeof item === 'boolean') {
value[i] = item.toString();
}
if (typeof item === 'object') {
// check if this is a pure object or custom display
if (typeof (item.toListItem || value.toMonitorContent || item.toReporterContent) === 'function') {
value[i].isHTML = true;
} else {
value[i] = JSON.stringify(item, circularReplacer());
}
}
}
}
let isHTML = false;
if (typeof value === 'object') {
// check if this is a pure object or custom display
if (typeof (value.toMonitorContent || value.toReporterContent) === 'function') {
value = value.toMonitorContent
? value.toMonitorContent() : value.toReporterContent();
isHTML = true;
} else if (!Array.isArray(value)) {
// only applies to objects
value = JSON.stringify(value, circularReplacer());
}
}
return {id, label, category, value, isHTML};
} |