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/**
* Copyright (c) 2014 Petka Antonov
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:</p>
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
"use strict";
module.exports = function(Promise, INTERNAL) {
var errors = require("./errors.js");
var TypeError = errors.TypeError;
var util = require("./util.js");
var isArray = util.isArray;
var errorObj = util.errorObj;
var tryCatch1 = util.tryCatch1;
function PromiseSpawn(generatorFunction, receiver, caller) {
var promise = this._promise = new Promise(INTERNAL);
promise._setTrace(caller, void 0);
this._generatorFunction = generatorFunction;
this._receiver = receiver;
this._generator = void 0;
}
PromiseSpawn.prototype.promise = function PromiseSpawn$promise() {
return this._promise;
};
PromiseSpawn.prototype._run = function PromiseSpawn$_run() {
this._generator = this._generatorFunction.call(this._receiver);
this._receiver =
this._generatorFunction = void 0;
this._next(void 0);
};
PromiseSpawn.prototype._continue = function PromiseSpawn$_continue(result) {
if (result === errorObj) {
this._generator = void 0;
var trace = errors.canAttach(result.e)
? result.e : new Error(result.e + "");
this._promise._attachExtraTrace(trace);
this._promise._reject(result.e, trace);
return;
}
var value = result.value;
if (result.done === true) {
this._generator = void 0;
if (!this._promise._tryFollow(value)) {
this._promise._fulfill(value);
}
}
else {
var maybePromise = Promise._cast(value, PromiseSpawn$_continue, void 0);
if (!(maybePromise instanceof Promise)) {
if (isArray(maybePromise)) {
maybePromise = Promise.all(maybePromise);
}
else {
this._throw(new TypeError(
"A value was yielded that could not be treated as a promise"
));
return;
}
}
maybePromise._then(
this._next,
this._throw,
void 0,
this,
null,
void 0
);
}
};
PromiseSpawn.prototype._throw = function PromiseSpawn$_throw(reason) {
if (errors.canAttach(reason))
this._promise._attachExtraTrace(reason);
this._continue(
tryCatch1(this._generator["throw"], this._generator, reason)
);
};
PromiseSpawn.prototype._next = function PromiseSpawn$_next(value) {
this._continue(
tryCatch1(this._generator.next, this._generator, value)
);
};
return PromiseSpawn;
};
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