167 lines
5.8 KiB
JavaScript
167 lines
5.8 KiB
JavaScript
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'use strict';
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/**
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* @license Angular v<unknown>
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* (c) 2010-2022 Google LLC. https://angular.io/
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* License: MIT
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*/
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/**
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* @fileoverview
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* @suppress {globalThis}
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*/
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const NEWLINE = '\n';
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const IGNORE_FRAMES = {};
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const creationTrace = '__creationTrace__';
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const ERROR_TAG = 'STACKTRACE TRACKING';
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const SEP_TAG = '__SEP_TAG__';
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let sepTemplate = SEP_TAG + '@[native]';
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class LongStackTrace {
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constructor() {
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this.error = getStacktrace();
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this.timestamp = new Date();
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}
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}
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function getStacktraceWithUncaughtError() {
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return new Error(ERROR_TAG);
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}
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function getStacktraceWithCaughtError() {
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try {
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throw getStacktraceWithUncaughtError();
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}
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catch (err) {
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return err;
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}
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}
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// Some implementations of exception handling don't create a stack trace if the exception
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// isn't thrown, however it's faster not to actually throw the exception.
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const error = getStacktraceWithUncaughtError();
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const caughtError = getStacktraceWithCaughtError();
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const getStacktrace = error.stack ?
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getStacktraceWithUncaughtError :
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(caughtError.stack ? getStacktraceWithCaughtError : getStacktraceWithUncaughtError);
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function getFrames(error) {
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return error.stack ? error.stack.split(NEWLINE) : [];
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}
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function addErrorStack(lines, error) {
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let trace = getFrames(error);
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for (let i = 0; i < trace.length; i++) {
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const frame = trace[i];
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// Filter out the Frames which are part of stack capturing.
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if (!IGNORE_FRAMES.hasOwnProperty(frame)) {
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lines.push(trace[i]);
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}
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}
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}
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function renderLongStackTrace(frames, stack) {
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const longTrace = [stack ? stack.trim() : ''];
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if (frames) {
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let timestamp = new Date().getTime();
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for (let i = 0; i < frames.length; i++) {
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const traceFrames = frames[i];
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const lastTime = traceFrames.timestamp;
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let separator = `____________________Elapsed ${timestamp - lastTime.getTime()} ms; At: ${lastTime}`;
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separator = separator.replace(/[^\w\d]/g, '_');
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longTrace.push(sepTemplate.replace(SEP_TAG, separator));
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addErrorStack(longTrace, traceFrames.error);
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timestamp = lastTime.getTime();
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}
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}
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return longTrace.join(NEWLINE);
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}
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// if Error.stackTraceLimit is 0, means stack trace
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// is disabled, so we don't need to generate long stack trace
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// this will improve performance in some test(some test will
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// set stackTraceLimit to 0, https://github.com/angular/zone.js/issues/698
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function stackTracesEnabled() {
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// Cast through any since this property only exists on Error in the nodejs
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// typings.
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return Error.stackTraceLimit > 0;
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}
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Zone['longStackTraceZoneSpec'] = {
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name: 'long-stack-trace',
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longStackTraceLimit: 10,
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// add a getLongStackTrace method in spec to
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// handle handled reject promise error.
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getLongStackTrace: function (error) {
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if (!error) {
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return undefined;
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}
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const trace = error[Zone.__symbol__('currentTaskTrace')];
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if (!trace) {
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return error.stack;
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}
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return renderLongStackTrace(trace, error.stack);
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},
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onScheduleTask: function (parentZoneDelegate, currentZone, targetZone, task) {
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if (stackTracesEnabled()) {
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const currentTask = Zone.currentTask;
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let trace = currentTask && currentTask.data && currentTask.data[creationTrace] || [];
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trace = [new LongStackTrace()].concat(trace);
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if (trace.length > this.longStackTraceLimit) {
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trace.length = this.longStackTraceLimit;
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}
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if (!task.data)
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task.data = {};
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if (task.type === 'eventTask') {
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// Fix issue https://github.com/angular/zone.js/issues/1195,
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// For event task of browser, by default, all task will share a
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// singleton instance of data object, we should create a new one here
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// The cast to `any` is required to workaround a closure bug which wrongly applies
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// URL sanitization rules to .data access.
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task.data = { ...task.data };
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}
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task.data[creationTrace] = trace;
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}
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return parentZoneDelegate.scheduleTask(targetZone, task);
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},
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onHandleError: function (parentZoneDelegate, currentZone, targetZone, error) {
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if (stackTracesEnabled()) {
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const parentTask = Zone.currentTask || error.task;
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if (error instanceof Error && parentTask) {
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const longStack = renderLongStackTrace(parentTask.data && parentTask.data[creationTrace], error.stack);
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try {
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error.stack = error.longStack = longStack;
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}
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catch (err) {
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}
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}
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}
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return parentZoneDelegate.handleError(targetZone, error);
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}
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};
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function captureStackTraces(stackTraces, count) {
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if (count > 0) {
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stackTraces.push(getFrames((new LongStackTrace()).error));
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captureStackTraces(stackTraces, count - 1);
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}
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}
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function computeIgnoreFrames() {
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if (!stackTracesEnabled()) {
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return;
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}
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const frames = [];
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captureStackTraces(frames, 2);
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const frames1 = frames[0];
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const frames2 = frames[1];
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for (let i = 0; i < frames1.length; i++) {
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const frame1 = frames1[i];
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if (frame1.indexOf(ERROR_TAG) == -1) {
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let match = frame1.match(/^\s*at\s+/);
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if (match) {
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sepTemplate = match[0] + SEP_TAG + ' (http://localhost)';
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break;
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}
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}
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}
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for (let i = 0; i < frames1.length; i++) {
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const frame1 = frames1[i];
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const frame2 = frames2[i];
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if (frame1 === frame2) {
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IGNORE_FRAMES[frame1] = true;
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}
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else {
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break;
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}
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}
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}
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computeIgnoreFrames();
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