d1ea1f4c7f
Update the license headers throughout the repository to reference Google LLC rather than Google Inc, for the required license headers. PR Close #37205
83 lines
2.9 KiB
JavaScript
83 lines
2.9 KiB
JavaScript
#!/usr/bin/env node
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/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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const path = require('path');
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const getMappings = require('./parseMap');
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const CLOSURE_REGEX = /tsickle_Closure_declarations\(\)/g;
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const VAR_REGEX = /(export )?(var (\S+) =)/g;
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const FUNCTION_REGEX = /(export )?function (\S+)\((.*)\) {/g;
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const CLASS_REGEX = /var (\S+) = \(function \((\S*)\) {/g;
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const PROPERTY_REGEX = /Object.defineProperty\((\S+)\.prototype, "(\S+)", {/g;
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const METHOD_REGEX = /(\S+)\.prototype\.(\S+) = function \((\S*)\) {/g;
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const GETTER_REGEX = /get_REGEX = function \((\S*)\) {/g;
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const TYPE_COMMENT_REGEX = /\/\*\* @type {\?} \*\/ /g;
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const AFTER_EQUALS_REGEX = /([^=]+)=(.*)/g;
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const EXPORT_REGEX = /export /g;
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const TSLIB_REGEX = /tslib_\d\.__/g;
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const STRIP_PREFIX_REGEX = /ɵ/g;
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const STRIP_SUFFIX_REGEX = /([^$]+)(\$)+\d/g;
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const SYNTHETIC_REGEX = /ɵ[0-9]/;
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// tslint:disable:no-console
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module.exports = function sourceMapTest(package) {
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const mappings =
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getMappings(getBundlePath(package)).filter(mapping => shouldCheckMapping(mapping.sourceText));
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console.log(`Analyzing ${mappings.length} mappings for ${package}...`);
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const failures = mappings.filter(mapping => {
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if (SYNTHETIC_REGEX.test(mapping.sourceText)) return false;
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if (cleanSource(mapping.sourceText) !== cleanGen(mapping.genText)) {
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console.log('source:', cleanSource(mapping.sourceText), 'gen:', cleanGen(mapping.genText));
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}
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return cleanSource(mapping.sourceText) !== cleanGen(mapping.genText);
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});
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logResults(failures);
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return failures;
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};
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function shouldCheckMapping(text) {
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// tsickle closure declaration does not exist in final bundle, so can't be checked
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if (CLOSURE_REGEX.test(text)) return false;
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return VAR_REGEX.test(text) || FUNCTION_REGEX.test(text) || CLASS_REGEX.test(text) ||
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PROPERTY_REGEX.test(text) || METHOD_REGEX.test(text) || GETTER_REGEX.test(text);
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}
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function cleanSource(source) {
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return source.replace(TYPE_COMMENT_REGEX, '')
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.replace(EXPORT_REGEX, '')
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.replace(STRIP_PREFIX_REGEX, '')
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.replace(TSLIB_REGEX, '__')
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.replace(AFTER_EQUALS_REGEX, '$1=');
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}
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function cleanGen(gen) {
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return gen.replace(TYPE_COMMENT_REGEX, '')
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.replace(STRIP_PREFIX_REGEX, '')
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.replace(STRIP_SUFFIX_REGEX, '$1')
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.replace(AFTER_EQUALS_REGEX, '$1=');
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}
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// tslint:disable:no-console
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function logResults(failures) {
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if (failures.length) {
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console.error(`... and source maps appear to be broken: ${failures.length} failures.`);
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failures.forEach(failure => console.error(failure));
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} else {
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console.log('... and source maps look good! 100% match');
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}
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}
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function getBundlePath(package) {
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return path.resolve(process.cwd(), 'dist/packages-dist/', package, 'esm5/', package + '.js');
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}
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