mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-06-15 07:29:45 +00:00
29 lines
930 B
JavaScript
29 lines
930 B
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
/**
|
|
* This script compares the AST of two JavaScript files passed as arguments.
|
|
* The script exits with a 0 status code if both files parse properly and the
|
|
* ASTs of both files are identical modulo location differences. The script
|
|
* exits with status code 1 if any of these conditions don't hold.
|
|
*
|
|
* This script is used as part of packaging to verify minified JavaScript files
|
|
* are identical to their original files.
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
function ast(filename) {
|
|
return JSON.stringify(Reflect.parse(snarf(filename), {loc: 0}));
|
|
}
|
|
|
|
if (scriptArgs.length !== 2) {
|
|
throw "usage: js js-compare-ast.js FILE1.js FILE2.js";
|
|
}
|
|
|
|
var ast0 = ast(scriptArgs[0]);
|
|
var ast1 = ast(scriptArgs[1]);
|
|
|
|
quit(ast0 == ast1 ? 0 : 1);
|