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74 lines
2.0 KiB
JavaScript
74 lines
2.0 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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/**
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* An object that contains details of a stack frame.
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*
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* @typedef {object} StackFrame
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* @see nsIStackFrame
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*
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* @property {string=} asyncCause
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* Type of asynchronous call by which this frame was invoked.
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* @property {number} columnNumber
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* The column number for this stack frame.
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* @property {string} filename
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* The source URL for this stack frame.
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* @property {string} function
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* SpiderMonkey’s inferred name for this stack frame’s function, or null.
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* @property {number} lineNumber
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* The line number for this stack frame (starts with 1).
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* @property {number} sourceId
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* The process-unique internal integer ID of this source.
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*/
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/**
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* Return a list of stack frames from the given stack.
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*
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* Convert stack objects to the JSON attributes expected by consumers.
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*
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* @param {object} stack
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* The native stack object to process.
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*
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* @returns {Array<StackFrame>=}
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*/
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export function getFramesFromStack(stack) {
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if (!stack || (Cu && Cu.isDeadWrapper(stack))) {
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// If the global from which this error came from has been nuked,
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// stack is going to be a dead wrapper.
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return null;
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}
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const frames = [];
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while (stack) {
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frames.push({
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asyncCause: stack.asyncCause,
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columnNumber: stack.column,
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filename: stack.source,
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functionName: stack.functionDisplayName || "",
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lineNumber: stack.line,
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sourceId: stack.sourceId,
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});
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stack = stack.parent || stack.asyncParent;
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}
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return frames;
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}
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/**
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* Check if a frame is from chrome scope.
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*
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* @param {object} frame
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* The frame to check
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*
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* @returns {boolean}
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* True, if frame is from chrome scope
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*/
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export function isChromeFrame(frame) {
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return (
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frame.filename.startsWith("chrome://") ||
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frame.filename.startsWith("resource://")
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);
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}
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