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/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory() :
typeof define === 'function' && define.amd ? define(factory) :
(factory());
}(this, (function () { 'use strict';
/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/**
* @fileoverview
* @suppress {globalThis}
*/
var NEWLINE = '\n';
var IGNORE_FRAMES = {};
var creationTrace = '__creationTrace__';
var ERROR_TAG = 'STACKTRACE TRACKING';
var SEP_TAG = '__SEP_TAG__';
var sepTemplate = SEP_TAG + '@[native]';
var LongStackTrace = (function () {
function LongStackTrace() {
this.error = getStacktrace();
this.timestamp = new Date();
}
return LongStackTrace;
}());
function getStacktraceWithUncaughtError() {
return new Error(ERROR_TAG);
}
function getStacktraceWithCaughtError() {
try {
throw getStacktraceWithUncaughtError();
}
catch (err) {
return err;
}
}
// Some implementations of exception handling don't create a stack trace if the exception
// isn't thrown, however it's faster not to actually throw the exception.
var error = getStacktraceWithUncaughtError();
var caughtError = getStacktraceWithCaughtError();
var getStacktrace = error.stack ?
getStacktraceWithUncaughtError :
(caughtError.stack ? getStacktraceWithCaughtError : getStacktraceWithUncaughtError);
function getFrames(error) {
return error.stack ? error.stack.split(NEWLINE) : [];
}
function addErrorStack(lines, error) {
var trace = getFrames(error);
for (var i = 0; i < trace.length; i++) {
var frame = trace[i];
// Filter out the Frames which are part of stack capturing.
if (!IGNORE_FRAMES.hasOwnProperty(frame)) {
lines.push(trace[i]);
}
}
}
function renderLongStackTrace(frames, stack) {
var longTrace = [stack ? stack.trim() : ''];
if (frames) {
var timestamp = new Date().getTime();
for (var i = 0; i < frames.length; i++) {
var traceFrames = frames[i];
var lastTime = traceFrames.timestamp;
var separator = "____________________Elapsed " + (timestamp - lastTime.getTime()) + " ms; At: " + lastTime;
separator = separator.replace(/[^\w\d]/g, '_');
longTrace.push(sepTemplate.replace(SEP_TAG, separator));
addErrorStack(longTrace, traceFrames.error);
timestamp = lastTime.getTime();
}
}
return longTrace.join(NEWLINE);
}
Zone['longStackTraceZoneSpec'] = {
name: 'long-stack-trace',
longStackTraceLimit: 10,
// add a getLongStackTrace method in spec to
// handle handled reject promise error.
getLongStackTrace: function (error) {
if (!error) {
return undefined;
}
var task = error[Zone.__symbol__('currentTask')];
var trace = task && task.data && task.data[creationTrace];
if (!trace) {
return error.stack;
}
return renderLongStackTrace(trace, error.stack);
},
onScheduleTask: function (parentZoneDelegate, currentZone, targetZone, task) {
if (Error.stackTraceLimit > 0) {
// if Error.stackTraceLimit is 0, means stack trace
// is disabled, so we don't need to generate long stack trace
// this will improve performance in some test(some test will
// set stackTraceLimit to 0, https://github.com/angular/zone.js/issues/698
var currentTask = Zone.currentTask;
var trace = currentTask && currentTask.data && currentTask.data[creationTrace] || [];
trace = [new LongStackTrace()].concat(trace);
if (trace.length > this.longStackTraceLimit) {
trace.length = this.longStackTraceLimit;
}
if (!task.data)
task.data = {};
task.data[creationTrace] = trace;
}
return parentZoneDelegate.scheduleTask(targetZone, task);
},
onHandleError: function (parentZoneDelegate, currentZone, targetZone, error) {
if (Error.stackTraceLimit > 0) {
// if Error.stackTraceLimit is 0, means stack trace
// is disabled, so we don't need to generate long stack trace
// this will improve performance in some test(some test will
// set stackTraceLimit to 0, https://github.com/angular/zone.js/issues/698
var parentTask = Zone.currentTask || error.task;
if (error instanceof Error && parentTask) {
var longStack = renderLongStackTrace(parentTask.data && parentTask.data[creationTrace], error.stack);
try {
error.stack = error.longStack = longStack;
}
catch (err) {
}
}
}
return parentZoneDelegate.handleError(targetZone, error);
}
};
function captureStackTraces(stackTraces, count) {
if (count > 0) {
stackTraces.push(getFrames((new LongStackTrace()).error));
captureStackTraces(stackTraces, count - 1);
}
}
function computeIgnoreFrames() {
if (Error.stackTraceLimit <= 0) {
return;
}
var frames = [];
captureStackTraces(frames, 2);
var frames1 = frames[0];
var frames2 = frames[1];
for (var i = 0; i < frames1.length; i++) {
var frame1 = frames1[i];
if (frame1.indexOf(ERROR_TAG) == -1) {
var match = frame1.match(/^\s*at\s+/);
if (match) {
sepTemplate = match[0] + SEP_TAG + ' (http://localhost)';
break;
}
}
}
for (var i = 0; i < frames1.length; i++) {
var frame1 = frames1[i];
var frame2 = frames2[i];
if (frame1 === frame2) {
IGNORE_FRAMES[frame1] = true;
}
else {
break;
}
}
}
computeIgnoreFrames();
})));