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1010 lines
31 KiB
1010 lines
31 KiB
"use strict";
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module.exports = function(Promise, Context,
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enableAsyncHooks, disableAsyncHooks) {
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var async = Promise._async;
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var Warning = require("./errors").Warning;
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var util = require("./util");
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var es5 = require("./es5");
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var canAttachTrace = util.canAttachTrace;
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var unhandledRejectionHandled;
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var possiblyUnhandledRejection;
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var bluebirdFramePattern =
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/[\\\/]bluebird[\\\/]js[\\\/](release|debug|instrumented)/;
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var nodeFramePattern = /\((?:timers\.js):\d+:\d+\)/;
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var parseLinePattern = /[\/<\(](.+?):(\d+):(\d+)\)?\s*$/;
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var stackFramePattern = null;
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var formatStack = null;
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var indentStackFrames = false;
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var printWarning;
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var debugging = !!(util.env("BLUEBIRD_DEBUG") != 0 &&
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(false ||
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util.env("BLUEBIRD_DEBUG") ||
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util.env("NODE_ENV") === "development"));
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var warnings = !!(util.env("BLUEBIRD_WARNINGS") != 0 &&
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(debugging || util.env("BLUEBIRD_WARNINGS")));
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var longStackTraces = !!(util.env("BLUEBIRD_LONG_STACK_TRACES") != 0 &&
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(debugging || util.env("BLUEBIRD_LONG_STACK_TRACES")));
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var wForgottenReturn = util.env("BLUEBIRD_W_FORGOTTEN_RETURN") != 0 &&
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(warnings || !!util.env("BLUEBIRD_W_FORGOTTEN_RETURN"));
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var deferUnhandledRejectionCheck;
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(function() {
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var promises = [];
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function unhandledRejectionCheck() {
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for (var i = 0; i < promises.length; ++i) {
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promises[i]._notifyUnhandledRejection();
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}
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unhandledRejectionClear();
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}
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function unhandledRejectionClear() {
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promises.length = 0;
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}
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deferUnhandledRejectionCheck = function(promise) {
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promises.push(promise);
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setTimeout(unhandledRejectionCheck, 1);
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};
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es5.defineProperty(Promise, "_unhandledRejectionCheck", {
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value: unhandledRejectionCheck
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});
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es5.defineProperty(Promise, "_unhandledRejectionClear", {
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value: unhandledRejectionClear
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});
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})();
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Promise.prototype.suppressUnhandledRejections = function() {
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var target = this._target();
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target._bitField = ((target._bitField & (~1048576)) |
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524288);
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};
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Promise.prototype._ensurePossibleRejectionHandled = function () {
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if ((this._bitField & 524288) !== 0) return;
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this._setRejectionIsUnhandled();
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deferUnhandledRejectionCheck(this);
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};
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Promise.prototype._notifyUnhandledRejectionIsHandled = function () {
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fireRejectionEvent("rejectionHandled",
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unhandledRejectionHandled, undefined, this);
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};
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Promise.prototype._setReturnedNonUndefined = function() {
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this._bitField = this._bitField | 268435456;
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};
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Promise.prototype._returnedNonUndefined = function() {
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return (this._bitField & 268435456) !== 0;
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};
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Promise.prototype._notifyUnhandledRejection = function () {
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if (this._isRejectionUnhandled()) {
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var reason = this._settledValue();
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this._setUnhandledRejectionIsNotified();
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fireRejectionEvent("unhandledRejection",
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possiblyUnhandledRejection, reason, this);
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}
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};
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Promise.prototype._setUnhandledRejectionIsNotified = function () {
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this._bitField = this._bitField | 262144;
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};
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Promise.prototype._unsetUnhandledRejectionIsNotified = function () {
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this._bitField = this._bitField & (~262144);
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};
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Promise.prototype._isUnhandledRejectionNotified = function () {
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return (this._bitField & 262144) > 0;
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};
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Promise.prototype._setRejectionIsUnhandled = function () {
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this._bitField = this._bitField | 1048576;
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};
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Promise.prototype._unsetRejectionIsUnhandled = function () {
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this._bitField = this._bitField & (~1048576);
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if (this._isUnhandledRejectionNotified()) {
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this._unsetUnhandledRejectionIsNotified();
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this._notifyUnhandledRejectionIsHandled();
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}
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};
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Promise.prototype._isRejectionUnhandled = function () {
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return (this._bitField & 1048576) > 0;
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};
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Promise.prototype._warn = function(message, shouldUseOwnTrace, promise) {
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return warn(message, shouldUseOwnTrace, promise || this);
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};
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Promise.onPossiblyUnhandledRejection = function (fn) {
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var context = Promise._getContext();
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possiblyUnhandledRejection = util.contextBind(context, fn);
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};
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Promise.onUnhandledRejectionHandled = function (fn) {
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var context = Promise._getContext();
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unhandledRejectionHandled = util.contextBind(context, fn);
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};
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var disableLongStackTraces = function() {};
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Promise.longStackTraces = function () {
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if (async.haveItemsQueued() && !config.longStackTraces) {
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throw new Error("cannot enable long stack traces after promises have been created\u000a\u000a See http://goo.gl/MqrFmX\u000a");
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}
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if (!config.longStackTraces && longStackTracesIsSupported()) {
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var Promise_captureStackTrace = Promise.prototype._captureStackTrace;
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var Promise_attachExtraTrace = Promise.prototype._attachExtraTrace;
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var Promise_dereferenceTrace = Promise.prototype._dereferenceTrace;
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config.longStackTraces = true;
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disableLongStackTraces = function() {
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if (async.haveItemsQueued() && !config.longStackTraces) {
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throw new Error("cannot enable long stack traces after promises have been created\u000a\u000a See http://goo.gl/MqrFmX\u000a");
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}
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Promise.prototype._captureStackTrace = Promise_captureStackTrace;
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Promise.prototype._attachExtraTrace = Promise_attachExtraTrace;
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Promise.prototype._dereferenceTrace = Promise_dereferenceTrace;
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Context.deactivateLongStackTraces();
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config.longStackTraces = false;
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};
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Promise.prototype._captureStackTrace = longStackTracesCaptureStackTrace;
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Promise.prototype._attachExtraTrace = longStackTracesAttachExtraTrace;
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Promise.prototype._dereferenceTrace = longStackTracesDereferenceTrace;
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Context.activateLongStackTraces();
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}
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};
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Promise.hasLongStackTraces = function () {
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return config.longStackTraces && longStackTracesIsSupported();
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};
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var legacyHandlers = {
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unhandledrejection: {
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before: function() {
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var ret = util.global.onunhandledrejection;
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util.global.onunhandledrejection = null;
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return ret;
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},
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after: function(fn) {
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util.global.onunhandledrejection = fn;
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}
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},
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rejectionhandled: {
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before: function() {
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var ret = util.global.onrejectionhandled;
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util.global.onrejectionhandled = null;
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return ret;
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},
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after: function(fn) {
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util.global.onrejectionhandled = fn;
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}
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}
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};
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var fireDomEvent = (function() {
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var dispatch = function(legacy, e) {
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if (legacy) {
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var fn;
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try {
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fn = legacy.before();
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return !util.global.dispatchEvent(e);
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} finally {
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legacy.after(fn);
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}
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} else {
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return !util.global.dispatchEvent(e);
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}
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};
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try {
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if (typeof CustomEvent === "function") {
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var event = new CustomEvent("CustomEvent");
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util.global.dispatchEvent(event);
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return function(name, event) {
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name = name.toLowerCase();
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var eventData = {
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detail: event,
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cancelable: true
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};
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var domEvent = new CustomEvent(name, eventData);
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es5.defineProperty(
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domEvent, "promise", {value: event.promise});
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es5.defineProperty(
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domEvent, "reason", {value: event.reason});
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return dispatch(legacyHandlers[name], domEvent);
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};
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} else if (typeof Event === "function") {
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var event = new Event("CustomEvent");
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util.global.dispatchEvent(event);
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return function(name, event) {
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name = name.toLowerCase();
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var domEvent = new Event(name, {
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cancelable: true
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});
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domEvent.detail = event;
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es5.defineProperty(domEvent, "promise", {value: event.promise});
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es5.defineProperty(domEvent, "reason", {value: event.reason});
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return dispatch(legacyHandlers[name], domEvent);
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};
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} else {
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var event = document.createEvent("CustomEvent");
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event.initCustomEvent("testingtheevent", false, true, {});
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util.global.dispatchEvent(event);
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return function(name, event) {
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name = name.toLowerCase();
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var domEvent = document.createEvent("CustomEvent");
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domEvent.initCustomEvent(name, false, true,
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event);
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return dispatch(legacyHandlers[name], domEvent);
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};
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}
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} catch (e) {}
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return function() {
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return false;
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};
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})();
|
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|
|
var fireGlobalEvent = (function() {
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|
if (util.isNode) {
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|
return function() {
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return process.emit.apply(process, arguments);
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};
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} else {
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if (!util.global) {
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return function() {
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return false;
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};
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}
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|
return function(name) {
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|
var methodName = "on" + name.toLowerCase();
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|
var method = util.global[methodName];
|
|
if (!method) return false;
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|
method.apply(util.global, [].slice.call(arguments, 1));
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return true;
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};
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|
}
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|
})();
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|
|
|
function generatePromiseLifecycleEventObject(name, promise) {
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|
return {promise: promise};
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|
}
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|
|
|
var eventToObjectGenerator = {
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|
promiseCreated: generatePromiseLifecycleEventObject,
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|
promiseFulfilled: generatePromiseLifecycleEventObject,
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|
promiseRejected: generatePromiseLifecycleEventObject,
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|
promiseResolved: generatePromiseLifecycleEventObject,
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|
promiseCancelled: generatePromiseLifecycleEventObject,
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promiseChained: function(name, promise, child) {
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return {promise: promise, child: child};
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},
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|
warning: function(name, warning) {
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return {warning: warning};
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|
},
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|
unhandledRejection: function (name, reason, promise) {
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|
return {reason: reason, promise: promise};
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|
},
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|
rejectionHandled: generatePromiseLifecycleEventObject
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|
};
|
|
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|
var activeFireEvent = function (name) {
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|
var globalEventFired = false;
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try {
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globalEventFired = fireGlobalEvent.apply(null, arguments);
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|
} catch (e) {
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|
async.throwLater(e);
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|
globalEventFired = true;
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|
}
|
|
|
|
var domEventFired = false;
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try {
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|
domEventFired = fireDomEvent(name,
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eventToObjectGenerator[name].apply(null, arguments));
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|
} catch (e) {
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|
async.throwLater(e);
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domEventFired = true;
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|
}
|
|
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return domEventFired || globalEventFired;
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|
};
|
|
|
|
Promise.config = function(opts) {
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|
opts = Object(opts);
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|
if ("longStackTraces" in opts) {
|
|
if (opts.longStackTraces) {
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|
Promise.longStackTraces();
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|
} else if (!opts.longStackTraces && Promise.hasLongStackTraces()) {
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disableLongStackTraces();
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|
}
|
|
}
|
|
if ("warnings" in opts) {
|
|
var warningsOption = opts.warnings;
|
|
config.warnings = !!warningsOption;
|
|
wForgottenReturn = config.warnings;
|
|
|
|
if (util.isObject(warningsOption)) {
|
|
if ("wForgottenReturn" in warningsOption) {
|
|
wForgottenReturn = !!warningsOption.wForgottenReturn;
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|
}
|
|
}
|
|
}
|
|
if ("cancellation" in opts && opts.cancellation && !config.cancellation) {
|
|
if (async.haveItemsQueued()) {
|
|
throw new Error(
|
|
"cannot enable cancellation after promises are in use");
|
|
}
|
|
Promise.prototype._clearCancellationData =
|
|
cancellationClearCancellationData;
|
|
Promise.prototype._propagateFrom = cancellationPropagateFrom;
|
|
Promise.prototype._onCancel = cancellationOnCancel;
|
|
Promise.prototype._setOnCancel = cancellationSetOnCancel;
|
|
Promise.prototype._attachCancellationCallback =
|
|
cancellationAttachCancellationCallback;
|
|
Promise.prototype._execute = cancellationExecute;
|
|
propagateFromFunction = cancellationPropagateFrom;
|
|
config.cancellation = true;
|
|
}
|
|
if ("monitoring" in opts) {
|
|
if (opts.monitoring && !config.monitoring) {
|
|
config.monitoring = true;
|
|
Promise.prototype._fireEvent = activeFireEvent;
|
|
} else if (!opts.monitoring && config.monitoring) {
|
|
config.monitoring = false;
|
|
Promise.prototype._fireEvent = defaultFireEvent;
|
|
}
|
|
}
|
|
if ("asyncHooks" in opts && util.nodeSupportsAsyncResource) {
|
|
var prev = config.asyncHooks;
|
|
var cur = !!opts.asyncHooks;
|
|
if (prev !== cur) {
|
|
config.asyncHooks = cur;
|
|
if (cur) {
|
|
enableAsyncHooks();
|
|
} else {
|
|
disableAsyncHooks();
|
|
}
|
|
}
|
|
}
|
|
return Promise;
|
|
};
|
|
|
|
function defaultFireEvent() { return false; }
|
|
|
|
Promise.prototype._fireEvent = defaultFireEvent;
|
|
Promise.prototype._execute = function(executor, resolve, reject) {
|
|
try {
|
|
executor(resolve, reject);
|
|
} catch (e) {
|
|
return e;
|
|
}
|
|
};
|
|
Promise.prototype._onCancel = function () {};
|
|
Promise.prototype._setOnCancel = function (handler) { ; };
|
|
Promise.prototype._attachCancellationCallback = function(onCancel) {
|
|
;
|
|
};
|
|
Promise.prototype._captureStackTrace = function () {};
|
|
Promise.prototype._attachExtraTrace = function () {};
|
|
Promise.prototype._dereferenceTrace = function () {};
|
|
Promise.prototype._clearCancellationData = function() {};
|
|
Promise.prototype._propagateFrom = function (parent, flags) {
|
|
;
|
|
;
|
|
};
|
|
|
|
function cancellationExecute(executor, resolve, reject) {
|
|
var promise = this;
|
|
try {
|
|
executor(resolve, reject, function(onCancel) {
|
|
if (typeof onCancel !== "function") {
|
|
throw new TypeError("onCancel must be a function, got: " +
|
|
util.toString(onCancel));
|
|
}
|
|
promise._attachCancellationCallback(onCancel);
|
|
});
|
|
} catch (e) {
|
|
return e;
|
|
}
|
|
}
|
|
|
|
function cancellationAttachCancellationCallback(onCancel) {
|
|
if (!this._isCancellable()) return this;
|
|
|
|
var previousOnCancel = this._onCancel();
|
|
if (previousOnCancel !== undefined) {
|
|
if (util.isArray(previousOnCancel)) {
|
|
previousOnCancel.push(onCancel);
|
|
} else {
|
|
this._setOnCancel([previousOnCancel, onCancel]);
|
|
}
|
|
} else {
|
|
this._setOnCancel(onCancel);
|
|
}
|
|
}
|
|
|
|
function cancellationOnCancel() {
|
|
return this._onCancelField;
|
|
}
|
|
|
|
function cancellationSetOnCancel(onCancel) {
|
|
this._onCancelField = onCancel;
|
|
}
|
|
|
|
function cancellationClearCancellationData() {
|
|
this._cancellationParent = undefined;
|
|
this._onCancelField = undefined;
|
|
}
|
|
|
|
function cancellationPropagateFrom(parent, flags) {
|
|
if ((flags & 1) !== 0) {
|
|
this._cancellationParent = parent;
|
|
var branchesRemainingToCancel = parent._branchesRemainingToCancel;
|
|
if (branchesRemainingToCancel === undefined) {
|
|
branchesRemainingToCancel = 0;
|
|
}
|
|
parent._branchesRemainingToCancel = branchesRemainingToCancel + 1;
|
|
}
|
|
if ((flags & 2) !== 0 && parent._isBound()) {
|
|
this._setBoundTo(parent._boundTo);
|
|
}
|
|
}
|
|
|
|
function bindingPropagateFrom(parent, flags) {
|
|
if ((flags & 2) !== 0 && parent._isBound()) {
|
|
this._setBoundTo(parent._boundTo);
|
|
}
|
|
}
|
|
var propagateFromFunction = bindingPropagateFrom;
|
|
|
|
function boundValueFunction() {
|
|
var ret = this._boundTo;
|
|
if (ret !== undefined) {
|
|
if (ret instanceof Promise) {
|
|
if (ret.isFulfilled()) {
|
|
return ret.value();
|
|
} else {
|
|
return undefined;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
function longStackTracesCaptureStackTrace() {
|
|
this._trace = new CapturedTrace(this._peekContext());
|
|
}
|
|
|
|
function longStackTracesAttachExtraTrace(error, ignoreSelf) {
|
|
if (canAttachTrace(error)) {
|
|
var trace = this._trace;
|
|
if (trace !== undefined) {
|
|
if (ignoreSelf) trace = trace._parent;
|
|
}
|
|
if (trace !== undefined) {
|
|
trace.attachExtraTrace(error);
|
|
} else if (!error.__stackCleaned__) {
|
|
var parsed = parseStackAndMessage(error);
|
|
util.notEnumerableProp(error, "stack",
|
|
parsed.message + "\n" + parsed.stack.join("\n"));
|
|
util.notEnumerableProp(error, "__stackCleaned__", true);
|
|
}
|
|
}
|
|
}
|
|
|
|
function longStackTracesDereferenceTrace() {
|
|
this._trace = undefined;
|
|
}
|
|
|
|
function checkForgottenReturns(returnValue, promiseCreated, name, promise,
|
|
parent) {
|
|
if (returnValue === undefined && promiseCreated !== null &&
|
|
wForgottenReturn) {
|
|
if (parent !== undefined && parent._returnedNonUndefined()) return;
|
|
if ((promise._bitField & 65535) === 0) return;
|
|
|
|
if (name) name = name + " ";
|
|
var handlerLine = "";
|
|
var creatorLine = "";
|
|
if (promiseCreated._trace) {
|
|
var traceLines = promiseCreated._trace.stack.split("\n");
|
|
var stack = cleanStack(traceLines);
|
|
for (var i = stack.length - 1; i >= 0; --i) {
|
|
var line = stack[i];
|
|
if (!nodeFramePattern.test(line)) {
|
|
var lineMatches = line.match(parseLinePattern);
|
|
if (lineMatches) {
|
|
handlerLine = "at " + lineMatches[1] +
|
|
":" + lineMatches[2] + ":" + lineMatches[3] + " ";
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (stack.length > 0) {
|
|
var firstUserLine = stack[0];
|
|
for (var i = 0; i < traceLines.length; ++i) {
|
|
|
|
if (traceLines[i] === firstUserLine) {
|
|
if (i > 0) {
|
|
creatorLine = "\n" + traceLines[i - 1];
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
var msg = "a promise was created in a " + name +
|
|
"handler " + handlerLine + "but was not returned from it, " +
|
|
"see http://goo.gl/rRqMUw" +
|
|
creatorLine;
|
|
promise._warn(msg, true, promiseCreated);
|
|
}
|
|
}
|
|
|
|
function deprecated(name, replacement) {
|
|
var message = name +
|
|
" is deprecated and will be removed in a future version.";
|
|
if (replacement) message += " Use " + replacement + " instead.";
|
|
return warn(message);
|
|
}
|
|
|
|
function warn(message, shouldUseOwnTrace, promise) {
|
|
if (!config.warnings) return;
|
|
var warning = new Warning(message);
|
|
var ctx;
|
|
if (shouldUseOwnTrace) {
|
|
promise._attachExtraTrace(warning);
|
|
} else if (config.longStackTraces && (ctx = Promise._peekContext())) {
|
|
ctx.attachExtraTrace(warning);
|
|
} else {
|
|
var parsed = parseStackAndMessage(warning);
|
|
warning.stack = parsed.message + "\n" + parsed.stack.join("\n");
|
|
}
|
|
|
|
if (!activeFireEvent("warning", warning)) {
|
|
formatAndLogError(warning, "", true);
|
|
}
|
|
}
|
|
|
|
function reconstructStack(message, stacks) {
|
|
for (var i = 0; i < stacks.length - 1; ++i) {
|
|
stacks[i].push("From previous event:");
|
|
stacks[i] = stacks[i].join("\n");
|
|
}
|
|
if (i < stacks.length) {
|
|
stacks[i] = stacks[i].join("\n");
|
|
}
|
|
return message + "\n" + stacks.join("\n");
|
|
}
|
|
|
|
function removeDuplicateOrEmptyJumps(stacks) {
|
|
for (var i = 0; i < stacks.length; ++i) {
|
|
if (stacks[i].length === 0 ||
|
|
((i + 1 < stacks.length) && stacks[i][0] === stacks[i+1][0])) {
|
|
stacks.splice(i, 1);
|
|
i--;
|
|
}
|
|
}
|
|
}
|
|
|
|
function removeCommonRoots(stacks) {
|
|
var current = stacks[0];
|
|
for (var i = 1; i < stacks.length; ++i) {
|
|
var prev = stacks[i];
|
|
var currentLastIndex = current.length - 1;
|
|
var currentLastLine = current[currentLastIndex];
|
|
var commonRootMeetPoint = -1;
|
|
|
|
for (var j = prev.length - 1; j >= 0; --j) {
|
|
if (prev[j] === currentLastLine) {
|
|
commonRootMeetPoint = j;
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (var j = commonRootMeetPoint; j >= 0; --j) {
|
|
var line = prev[j];
|
|
if (current[currentLastIndex] === line) {
|
|
current.pop();
|
|
currentLastIndex--;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
current = prev;
|
|
}
|
|
}
|
|
|
|
function cleanStack(stack) {
|
|
var ret = [];
|
|
for (var i = 0; i < stack.length; ++i) {
|
|
var line = stack[i];
|
|
var isTraceLine = " (No stack trace)" === line ||
|
|
stackFramePattern.test(line);
|
|
var isInternalFrame = isTraceLine && shouldIgnore(line);
|
|
if (isTraceLine && !isInternalFrame) {
|
|
if (indentStackFrames && line.charAt(0) !== " ") {
|
|
line = " " + line;
|
|
}
|
|
ret.push(line);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
function stackFramesAsArray(error) {
|
|
var stack = error.stack.replace(/\s+$/g, "").split("\n");
|
|
for (var i = 0; i < stack.length; ++i) {
|
|
var line = stack[i];
|
|
if (" (No stack trace)" === line || stackFramePattern.test(line)) {
|
|
break;
|
|
}
|
|
}
|
|
if (i > 0 && error.name != "SyntaxError") {
|
|
stack = stack.slice(i);
|
|
}
|
|
return stack;
|
|
}
|
|
|
|
function parseStackAndMessage(error) {
|
|
var stack = error.stack;
|
|
var message = error.toString();
|
|
stack = typeof stack === "string" && stack.length > 0
|
|
? stackFramesAsArray(error) : [" (No stack trace)"];
|
|
return {
|
|
message: message,
|
|
stack: error.name == "SyntaxError" ? stack : cleanStack(stack)
|
|
};
|
|
}
|
|
|
|
function formatAndLogError(error, title, isSoft) {
|
|
if (typeof console !== "undefined") {
|
|
var message;
|
|
if (util.isObject(error)) {
|
|
var stack = error.stack;
|
|
message = title + formatStack(stack, error);
|
|
} else {
|
|
message = title + String(error);
|
|
}
|
|
if (typeof printWarning === "function") {
|
|
printWarning(message, isSoft);
|
|
} else if (typeof console.log === "function" ||
|
|
typeof console.log === "object") {
|
|
console.log(message);
|
|
}
|
|
}
|
|
}
|
|
|
|
function fireRejectionEvent(name, localHandler, reason, promise) {
|
|
var localEventFired = false;
|
|
try {
|
|
if (typeof localHandler === "function") {
|
|
localEventFired = true;
|
|
if (name === "rejectionHandled") {
|
|
localHandler(promise);
|
|
} else {
|
|
localHandler(reason, promise);
|
|
}
|
|
}
|
|
} catch (e) {
|
|
async.throwLater(e);
|
|
}
|
|
|
|
if (name === "unhandledRejection") {
|
|
if (!activeFireEvent(name, reason, promise) && !localEventFired) {
|
|
formatAndLogError(reason, "Unhandled rejection ");
|
|
}
|
|
} else {
|
|
activeFireEvent(name, promise);
|
|
}
|
|
}
|
|
|
|
function formatNonError(obj) {
|
|
var str;
|
|
if (typeof obj === "function") {
|
|
str = "[function " +
|
|
(obj.name || "anonymous") +
|
|
"]";
|
|
} else {
|
|
str = obj && typeof obj.toString === "function"
|
|
? obj.toString() : util.toString(obj);
|
|
var ruselessToString = /\[object [a-zA-Z0-9$_]+\]/;
|
|
if (ruselessToString.test(str)) {
|
|
try {
|
|
var newStr = JSON.stringify(obj);
|
|
str = newStr;
|
|
}
|
|
catch(e) {
|
|
|
|
}
|
|
}
|
|
if (str.length === 0) {
|
|
str = "(empty array)";
|
|
}
|
|
}
|
|
return ("(<" + snip(str) + ">, no stack trace)");
|
|
}
|
|
|
|
function snip(str) {
|
|
var maxChars = 41;
|
|
if (str.length < maxChars) {
|
|
return str;
|
|
}
|
|
return str.substr(0, maxChars - 3) + "...";
|
|
}
|
|
|
|
function longStackTracesIsSupported() {
|
|
return typeof captureStackTrace === "function";
|
|
}
|
|
|
|
var shouldIgnore = function() { return false; };
|
|
var parseLineInfoRegex = /[\/<\(]([^:\/]+):(\d+):(?:\d+)\)?\s*$/;
|
|
function parseLineInfo(line) {
|
|
var matches = line.match(parseLineInfoRegex);
|
|
if (matches) {
|
|
return {
|
|
fileName: matches[1],
|
|
line: parseInt(matches[2], 10)
|
|
};
|
|
}
|
|
}
|
|
|
|
function setBounds(firstLineError, lastLineError) {
|
|
if (!longStackTracesIsSupported()) return;
|
|
var firstStackLines = (firstLineError.stack || "").split("\n");
|
|
var lastStackLines = (lastLineError.stack || "").split("\n");
|
|
var firstIndex = -1;
|
|
var lastIndex = -1;
|
|
var firstFileName;
|
|
var lastFileName;
|
|
for (var i = 0; i < firstStackLines.length; ++i) {
|
|
var result = parseLineInfo(firstStackLines[i]);
|
|
if (result) {
|
|
firstFileName = result.fileName;
|
|
firstIndex = result.line;
|
|
break;
|
|
}
|
|
}
|
|
for (var i = 0; i < lastStackLines.length; ++i) {
|
|
var result = parseLineInfo(lastStackLines[i]);
|
|
if (result) {
|
|
lastFileName = result.fileName;
|
|
lastIndex = result.line;
|
|
break;
|
|
}
|
|
}
|
|
if (firstIndex < 0 || lastIndex < 0 || !firstFileName || !lastFileName ||
|
|
firstFileName !== lastFileName || firstIndex >= lastIndex) {
|
|
return;
|
|
}
|
|
|
|
shouldIgnore = function(line) {
|
|
if (bluebirdFramePattern.test(line)) return true;
|
|
var info = parseLineInfo(line);
|
|
if (info) {
|
|
if (info.fileName === firstFileName &&
|
|
(firstIndex <= info.line && info.line <= lastIndex)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
}
|
|
|
|
function CapturedTrace(parent) {
|
|
this._parent = parent;
|
|
this._promisesCreated = 0;
|
|
var length = this._length = 1 + (parent === undefined ? 0 : parent._length);
|
|
captureStackTrace(this, CapturedTrace);
|
|
if (length > 32) this.uncycle();
|
|
}
|
|
util.inherits(CapturedTrace, Error);
|
|
Context.CapturedTrace = CapturedTrace;
|
|
|
|
CapturedTrace.prototype.uncycle = function() {
|
|
var length = this._length;
|
|
if (length < 2) return;
|
|
var nodes = [];
|
|
var stackToIndex = {};
|
|
|
|
for (var i = 0, node = this; node !== undefined; ++i) {
|
|
nodes.push(node);
|
|
node = node._parent;
|
|
}
|
|
length = this._length = i;
|
|
for (var i = length - 1; i >= 0; --i) {
|
|
var stack = nodes[i].stack;
|
|
if (stackToIndex[stack] === undefined) {
|
|
stackToIndex[stack] = i;
|
|
}
|
|
}
|
|
for (var i = 0; i < length; ++i) {
|
|
var currentStack = nodes[i].stack;
|
|
var index = stackToIndex[currentStack];
|
|
if (index !== undefined && index !== i) {
|
|
if (index > 0) {
|
|
nodes[index - 1]._parent = undefined;
|
|
nodes[index - 1]._length = 1;
|
|
}
|
|
nodes[i]._parent = undefined;
|
|
nodes[i]._length = 1;
|
|
var cycleEdgeNode = i > 0 ? nodes[i - 1] : this;
|
|
|
|
if (index < length - 1) {
|
|
cycleEdgeNode._parent = nodes[index + 1];
|
|
cycleEdgeNode._parent.uncycle();
|
|
cycleEdgeNode._length =
|
|
cycleEdgeNode._parent._length + 1;
|
|
} else {
|
|
cycleEdgeNode._parent = undefined;
|
|
cycleEdgeNode._length = 1;
|
|
}
|
|
var currentChildLength = cycleEdgeNode._length + 1;
|
|
for (var j = i - 2; j >= 0; --j) {
|
|
nodes[j]._length = currentChildLength;
|
|
currentChildLength++;
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
};
|
|
|
|
CapturedTrace.prototype.attachExtraTrace = function(error) {
|
|
if (error.__stackCleaned__) return;
|
|
this.uncycle();
|
|
var parsed = parseStackAndMessage(error);
|
|
var message = parsed.message;
|
|
var stacks = [parsed.stack];
|
|
|
|
var trace = this;
|
|
while (trace !== undefined) {
|
|
stacks.push(cleanStack(trace.stack.split("\n")));
|
|
trace = trace._parent;
|
|
}
|
|
removeCommonRoots(stacks);
|
|
removeDuplicateOrEmptyJumps(stacks);
|
|
util.notEnumerableProp(error, "stack", reconstructStack(message, stacks));
|
|
util.notEnumerableProp(error, "__stackCleaned__", true);
|
|
};
|
|
|
|
var captureStackTrace = (function stackDetection() {
|
|
var v8stackFramePattern = /^\s*at\s*/;
|
|
var v8stackFormatter = function(stack, error) {
|
|
if (typeof stack === "string") return stack;
|
|
|
|
if (error.name !== undefined &&
|
|
error.message !== undefined) {
|
|
return error.toString();
|
|
}
|
|
return formatNonError(error);
|
|
};
|
|
|
|
if (typeof Error.stackTraceLimit === "number" &&
|
|
typeof Error.captureStackTrace === "function") {
|
|
Error.stackTraceLimit += 6;
|
|
stackFramePattern = v8stackFramePattern;
|
|
formatStack = v8stackFormatter;
|
|
var captureStackTrace = Error.captureStackTrace;
|
|
|
|
shouldIgnore = function(line) {
|
|
return bluebirdFramePattern.test(line);
|
|
};
|
|
return function(receiver, ignoreUntil) {
|
|
Error.stackTraceLimit += 6;
|
|
captureStackTrace(receiver, ignoreUntil);
|
|
Error.stackTraceLimit -= 6;
|
|
};
|
|
}
|
|
var err = new Error();
|
|
|
|
if (typeof err.stack === "string" &&
|
|
err.stack.split("\n")[0].indexOf("stackDetection@") >= 0) {
|
|
stackFramePattern = /@/;
|
|
formatStack = v8stackFormatter;
|
|
indentStackFrames = true;
|
|
return function captureStackTrace(o) {
|
|
o.stack = new Error().stack;
|
|
};
|
|
}
|
|
|
|
var hasStackAfterThrow;
|
|
try { throw new Error(); }
|
|
catch(e) {
|
|
hasStackAfterThrow = ("stack" in e);
|
|
}
|
|
if (!("stack" in err) && hasStackAfterThrow &&
|
|
typeof Error.stackTraceLimit === "number") {
|
|
stackFramePattern = v8stackFramePattern;
|
|
formatStack = v8stackFormatter;
|
|
return function captureStackTrace(o) {
|
|
Error.stackTraceLimit += 6;
|
|
try { throw new Error(); }
|
|
catch(e) { o.stack = e.stack; }
|
|
Error.stackTraceLimit -= 6;
|
|
};
|
|
}
|
|
|
|
formatStack = function(stack, error) {
|
|
if (typeof stack === "string") return stack;
|
|
|
|
if ((typeof error === "object" ||
|
|
typeof error === "function") &&
|
|
error.name !== undefined &&
|
|
error.message !== undefined) {
|
|
return error.toString();
|
|
}
|
|
return formatNonError(error);
|
|
};
|
|
|
|
return null;
|
|
|
|
})([]);
|
|
|
|
if (typeof console !== "undefined" && typeof console.warn !== "undefined") {
|
|
printWarning = function (message) {
|
|
console.warn(message);
|
|
};
|
|
if (util.isNode && process.stderr.isTTY) {
|
|
printWarning = function(message, isSoft) {
|
|
var color = isSoft ? "\u001b[33m" : "\u001b[31m";
|
|
console.warn(color + message + "\u001b[0m\n");
|
|
};
|
|
} else if (!util.isNode && typeof (new Error().stack) === "string") {
|
|
printWarning = function(message, isSoft) {
|
|
console.warn("%c" + message,
|
|
isSoft ? "color: darkorange" : "color: red");
|
|
};
|
|
}
|
|
}
|
|
|
|
var config = {
|
|
warnings: warnings,
|
|
longStackTraces: false,
|
|
cancellation: false,
|
|
monitoring: false,
|
|
asyncHooks: false
|
|
};
|
|
|
|
if (longStackTraces) Promise.longStackTraces();
|
|
|
|
return {
|
|
asyncHooks: function() {
|
|
return config.asyncHooks;
|
|
},
|
|
longStackTraces: function() {
|
|
return config.longStackTraces;
|
|
},
|
|
warnings: function() {
|
|
return config.warnings;
|
|
},
|
|
cancellation: function() {
|
|
return config.cancellation;
|
|
},
|
|
monitoring: function() {
|
|
return config.monitoring;
|
|
},
|
|
propagateFromFunction: function() {
|
|
return propagateFromFunction;
|
|
},
|
|
boundValueFunction: function() {
|
|
return boundValueFunction;
|
|
},
|
|
checkForgottenReturns: checkForgottenReturns,
|
|
setBounds: setBounds,
|
|
warn: warn,
|
|
deprecated: deprecated,
|
|
CapturedTrace: CapturedTrace,
|
|
fireDomEvent: fireDomEvent,
|
|
fireGlobalEvent: fireGlobalEvent
|
|
};
|
|
};
|