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24 lines
744 B
24 lines
744 B
'use strict';
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var define = require('define-data-property');
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var hasDescriptors = require('has-property-descriptors')();
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var functionsHaveConfigurableNames = require('functions-have-names').functionsHaveConfigurableNames();
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var $TypeError = require('es-errors/type');
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/** @type {import('.')} */
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module.exports = function setFunctionName(fn, name) {
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if (typeof fn !== 'function') {
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throw new $TypeError('`fn` is not a function');
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}
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var loose = arguments.length > 2 && !!arguments[2];
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if (!loose || functionsHaveConfigurableNames) {
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if (hasDescriptors) {
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define(/** @type {Parameters<define>[0]} */ (fn), 'name', name, true, true);
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} else {
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define(/** @type {Parameters<define>[0]} */ (fn), 'name', name);
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}
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}
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return fn;
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};
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