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*** Bug 1514594: Part 3a - Change ChromeUtils.import to return an exports object; not pollute global. r=mccr8 This changes the behavior of ChromeUtils.import() to return an exports object, rather than a module global, in all cases except when `null` is passed as a second argument, and changes the default behavior not to pollute the global scope with the module's exports. Thus, the following code written for the old model: ChromeUtils.import("resource://gre/modules/Services.jsm"); is approximately the same as the following, in the new model: var {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm"); Since the two behaviors are mutually incompatible, this patch will land with a scripted rewrite to update all existing callers to use the new model rather than the old. *** Bug 1514594: Part 3b - Mass rewrite all JS code to use the new ChromeUtils.import API. rs=Gijs This was done using the followng script: https://bitbucket.org/kmaglione/m-c-rewrites/src/tip/processors/cu-import-exports.jsm *** Bug 1514594: Part 3c - Update ESLint plugin for ChromeUtils.import API changes. r=Standard8 Differential Revision: https://phabricator.services.mozilla.com/D16747 *** Bug 1514594: Part 3d - Remove/fix hundreds of duplicate imports from sync tests. r=Gijs Differential Revision: https://phabricator.services.mozilla.com/D16748 *** Bug 1514594: Part 3e - Remove no-op ChromeUtils.import() calls. r=Gijs Differential Revision: https://phabricator.services.mozilla.com/D16749 *** Bug 1514594: Part 3f.1 - Cleanup various test corner cases after mass rewrite. r=Gijs *** Bug 1514594: Part 3f.2 - Cleanup various non-test corner cases after mass rewrite. r=Gijs Differential Revision: https://phabricator.services.mozilla.com/D16750 --HG-- extra : rebase_source : 359574ee3064c90f33bf36c2ebe3159a24cc8895 extra : histedit_source : b93c8f42808b1599f9122d7842d2c0b3e656a594%2C64a3a4e3359dc889e2ab2b49461bab9e27fc10a7
61 lines
2.1 KiB
JavaScript
61 lines
2.1 KiB
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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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var EXPORTED_SYMBOLS = ["CanonicalJSON"];
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var CanonicalJSON = {
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/**
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* Return the canonical JSON form of the passed source, sorting all the object
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* keys recursively. Note that this method will cause an infinite loop if
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* cycles exist in the source (bug 1265357).
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*
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* @param source
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* The elements to be serialized.
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*
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* The output will have all unicode chars escaped with the unicode codepoint
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* as lowercase hexadecimal.
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*
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* @usage
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* CanonicalJSON.stringify(listOfRecords);
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**/
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stringify: function stringify(source, jsescFn) {
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if (typeof jsescFn != "function") {
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const { jsesc } = ChromeUtils.import("resource://gre/modules/third_party/jsesc/jsesc.js");
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jsescFn = jsesc;
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}
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if (Array.isArray(source)) {
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const jsonArray = source.map(x => typeof x === "undefined" ? null : x);
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return "[" + jsonArray.map(item => stringify(item, jsescFn)).join(",") + "]";
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}
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if (typeof source === "number") {
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if (source === 0) {
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return (Object.is(source, -0)) ? "-0" : "0";
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}
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}
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// Leverage jsesc library, mainly for unicode escaping.
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const toJSON = (input) => jsescFn(input, {lowercaseHex: true, json: true});
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if (typeof source !== "object" || source === null) {
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return toJSON(source);
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}
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// Dealing with objects, ordering keys.
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const sortedKeys = Object.keys(source).sort();
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const lastIndex = sortedKeys.length - 1;
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return sortedKeys.reduce((serial, key, index) => {
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const value = source[key];
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// JSON.stringify drops keys with an undefined value.
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if (typeof value === "undefined") {
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return serial;
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}
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const jsonValue = value && value.toJSON ? value.toJSON() : value;
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const suffix = index !== lastIndex ? "," : "";
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const escapedKey = toJSON(key);
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return serial + escapedKey + ":" + stringify(jsonValue, jsescFn) + suffix;
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}, "{") + "}";
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},
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};
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