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							67 lines
						
					
					
						
							1.9 KiB
						
					
					
				
			
		
		
	
	
							67 lines
						
					
					
						
							1.9 KiB
						
					
					
				"use strict"; | 
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module.exports = function(Promise, INTERNAL, tryConvertToPromise, debug) { | 
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var calledBind = false; | 
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var rejectThis = function(_, e) { | 
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    this._reject(e); | 
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}; | 
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 | 
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var targetRejected = function(e, context) { | 
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    context.promiseRejectionQueued = true; | 
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    context.bindingPromise._then(rejectThis, rejectThis, null, this, e); | 
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}; | 
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 | 
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var bindingResolved = function(thisArg, context) { | 
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    if (((this._bitField & 50397184) === 0)) { | 
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        this._resolveCallback(context.target); | 
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    } | 
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}; | 
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 | 
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var bindingRejected = function(e, context) { | 
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    if (!context.promiseRejectionQueued) this._reject(e); | 
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}; | 
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 | 
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Promise.prototype.bind = function (thisArg) { | 
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    if (!calledBind) { | 
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        calledBind = true; | 
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        Promise.prototype._propagateFrom = debug.propagateFromFunction(); | 
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        Promise.prototype._boundValue = debug.boundValueFunction(); | 
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    } | 
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    var maybePromise = tryConvertToPromise(thisArg); | 
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    var ret = new Promise(INTERNAL); | 
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    ret._propagateFrom(this, 1); | 
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    var target = this._target(); | 
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    ret._setBoundTo(maybePromise); | 
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    if (maybePromise instanceof Promise) { | 
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        var context = { | 
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            promiseRejectionQueued: false, | 
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            promise: ret, | 
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            target: target, | 
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            bindingPromise: maybePromise | 
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        }; | 
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        target._then(INTERNAL, targetRejected, undefined, ret, context); | 
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        maybePromise._then( | 
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            bindingResolved, bindingRejected, undefined, ret, context); | 
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        ret._setOnCancel(maybePromise); | 
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    } else { | 
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        ret._resolveCallback(target); | 
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    } | 
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    return ret; | 
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}; | 
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 | 
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Promise.prototype._setBoundTo = function (obj) { | 
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    if (obj !== undefined) { | 
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        this._bitField = this._bitField | 2097152; | 
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        this._boundTo = obj; | 
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    } else { | 
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        this._bitField = this._bitField & (~2097152); | 
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    } | 
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}; | 
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 | 
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Promise.prototype._isBound = function () { | 
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    return (this._bitField & 2097152) === 2097152; | 
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}; | 
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 | 
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Promise.bind = function (thisArg, value) { | 
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    return Promise.resolve(value).bind(thisArg); | 
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}; | 
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};
 | 
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