76 lines
2.3 KiB
JavaScript
76 lines
2.3 KiB
JavaScript
"use strict";
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var { classes: Cc, interfaces: Ci, utils: Cu } = Components;
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const { require } = Cu.import("resource://devtools/shared/Loader.jsm", {});
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function isObject(value) {
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return typeof value === "object" && value !== null;
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}
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function intersect(a, b) {
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const seen = new Set(a);
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return b.filter(value => seen.has(value));
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}
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function checkEquivalentASTs(expected, actual, prop = []) {
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do_print("Checking: " + prop.join(" "));
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if (!isObject(expected)) {
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return void do_check_eq(expected, actual);
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}
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do_check_true(isObject(actual));
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if (Array.isArray(expected)) {
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do_check_true(Array.isArray(actual));
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do_check_eq(expected.length, actual.length);
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for (let i = 0; i < expected.length; i++) {
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checkEquivalentASTs(expected[i], actual[i], prop.concat(i));
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}
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} else {
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// We must intersect the keys since acorn and Reflect have different
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// extraneous properties on their AST nodes.
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const keys = intersect(Object.keys(expected), Object.keys(actual));
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for (let key of keys) {
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checkEquivalentASTs(expected[key], actual[key], prop.concat(key));
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}
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}
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}
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// Register a console listener, so console messages don't just disappear
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// into the ether.
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var errorCount = 0;
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var listener = {
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observe: function (aMessage) {
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errorCount++;
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try {
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// If we've been given an nsIScriptError, then we can print out
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// something nicely formatted, for tools like Emacs to pick up.
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var scriptError = aMessage.QueryInterface(Ci.nsIScriptError);
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dump(aMessage.sourceName + ":" + aMessage.lineNumber + ": " +
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scriptErrorFlagsToKind(aMessage.flags) + ": " +
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aMessage.errorMessage + "\n");
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var string = aMessage.errorMessage;
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} catch (x) {
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// Be a little paranoid with message, as the whole goal here is to lose
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// no information.
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try {
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var string = "" + aMessage.message;
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} catch (x) {
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var string = "<error converting error message to string>";
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}
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}
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// Ignored until they are fixed in bug 1242968.
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if (string.includes("JavaScript Warning")) {
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return;
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}
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do_throw("head_acorn.js got console message: " + string + "\n");
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}
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};
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var consoleService = Cc["@mozilla.org/consoleservice;1"].getService(Ci.nsIConsoleService);
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consoleService.registerListener(listener);
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