forked from mirrors/gecko-dev
74a3b5d2c6
MozReview-Commit-ID: LpXm7TbwvDb --HG-- rename : toolkit/modules/tests/MockDocument.jsm => toolkit/modules/tests/modules/MockDocument.jsm rename : toolkit/modules/tests/PromiseTestUtils.jsm => toolkit/modules/tests/modules/PromiseTestUtils.jsm extra : rebase_source : 0013201da831f0d549aea2c9064481c1e1a3ffcc
31 lines
998 B
JavaScript
31 lines
998 B
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* This script compares the AST of two JavaScript files passed as arguments.
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* The script exits with a 0 status code if both files parse properly and the
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* ASTs of both files are identical modulo location differences. The script
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* exits with status code 1 if any of these conditions don't hold.
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*
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* This script is used as part of packaging to verify minified JavaScript files
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* are identical to their original files.
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*/
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// Available to the js shell.
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/* global snarf, scriptArgs, quit */
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"use strict";
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function ast(filename) {
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return JSON.stringify(Reflect.parse(snarf(filename), {loc: 0}));
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}
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if (scriptArgs.length !== 2) {
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throw "usage: js js-compare-ast.js FILE1.js FILE2.js";
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}
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var ast0 = ast(scriptArgs[0]);
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var ast1 = ast(scriptArgs[1]);
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quit(ast0 == ast1 ? 0 : 1);
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