forked from mirrors/gecko-dev
39f7f2c862
MozReview-Commit-ID: CgT1VGJnJqB --HG-- extra : rebase_source : 14c52fe412675d9442d8d723cc3e8da55b169079
49 lines
1.5 KiB
JavaScript
49 lines
1.5 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// A few wrappers for stack-manipulation. This version of the module
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// is used in content code. Note that this particular copy of the
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// file can only be loaded via require(), because Cu.import doesn't
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// exist in the content case. So, we don't need the code to handle
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// both require and import here.
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"use strict";
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/**
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* Looks like Cu.callFunctionWithAsyncStack, but just calls the callee.
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*/
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function callFunctionWithAsyncStack(callee, stack, id) {
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return callee();
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}
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/**
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* Return a description of the Nth caller, suitable for logging.
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*
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* @param {Number} n the caller to describe
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* @return {String} a description of the nth caller.
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*/
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function describeNthCaller(n) {
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if (isWorker) {
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return "";
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}
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let stack = new Error().stack.split("\n");
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// Add one here to skip this function.
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return stack[n + 1];
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}
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/**
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* Return a stack object that can be serialized and, when
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* deserialized, passed to callFunctionWithAsyncStack.
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*/
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function getStack() {
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// There's no reason for this to do anything fancy, since it's only
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// used to pass back into callFunctionWithAsyncStack, which we can't
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// implement.
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return null;
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}
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exports.callFunctionWithAsyncStack = callFunctionWithAsyncStack;
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exports.describeNthCaller = describeNthCaller;
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exports.getStack = getStack;
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