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- "use strict";
- module.exports = function(Promise) {
- var longStackTraces = false;
- var contextStack = [];
-
- Promise.prototype._promiseCreated = function() {};
- Promise.prototype._pushContext = function() {};
- Promise.prototype._popContext = function() {return null;};
- Promise._peekContext = Promise.prototype._peekContext = function() {};
-
- function Context() {
- this._trace = new Context.CapturedTrace(peekContext());
- }
- Context.prototype._pushContext = function () {
- if (this._trace !== undefined) {
- this._trace._promiseCreated = null;
- contextStack.push(this._trace);
- }
- };
-
- Context.prototype._popContext = function () {
- if (this._trace !== undefined) {
- var trace = contextStack.pop();
- var ret = trace._promiseCreated;
- trace._promiseCreated = null;
- return ret;
- }
- return null;
- };
-
- function createContext() {
- if (longStackTraces) return new Context();
- }
-
- function peekContext() {
- var lastIndex = contextStack.length - 1;
- if (lastIndex >= 0) {
- return contextStack[lastIndex];
- }
- return undefined;
- }
- Context.CapturedTrace = null;
- Context.create = createContext;
- Context.deactivateLongStackTraces = function() {};
- Context.activateLongStackTraces = function() {
- var Promise_pushContext = Promise.prototype._pushContext;
- var Promise_popContext = Promise.prototype._popContext;
- var Promise_PeekContext = Promise._peekContext;
- var Promise_peekContext = Promise.prototype._peekContext;
- var Promise_promiseCreated = Promise.prototype._promiseCreated;
- Context.deactivateLongStackTraces = function() {
- Promise.prototype._pushContext = Promise_pushContext;
- Promise.prototype._popContext = Promise_popContext;
- Promise._peekContext = Promise_PeekContext;
- Promise.prototype._peekContext = Promise_peekContext;
- Promise.prototype._promiseCreated = Promise_promiseCreated;
- longStackTraces = false;
- };
- longStackTraces = true;
- Promise.prototype._pushContext = Context.prototype._pushContext;
- Promise.prototype._popContext = Context.prototype._popContext;
- Promise._peekContext = Promise.prototype._peekContext = peekContext;
- Promise.prototype._promiseCreated = function() {
- var ctx = this._peekContext();
- if (ctx && ctx._promiseCreated == null) ctx._promiseCreated = this;
- };
- };
- return Context;
- };
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