direct_resolve.js
1.24 KB
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"use strict";
var util = require("./util.js");
var isPrimitive = util.isPrimitive;
var wrapsPrimitiveReceiver = util.wrapsPrimitiveReceiver;
module.exports = function(Promise) {
var returner = function () {
return this;
};
var thrower = function () {
throw this;
};
var wrapper = function (value, action) {
if (action === 1) {
return function () {
throw value;
};
} else if (action === 2) {
return function () {
return value;
};
}
};
Promise.prototype["return"] =
Promise.prototype.thenReturn = function (value) {
if (wrapsPrimitiveReceiver && isPrimitive(value)) {
return this._then(
wrapper(value, 2),
undefined,
undefined,
undefined,
undefined
);
}
return this._then(returner, undefined, undefined, value, undefined);
};
Promise.prototype["throw"] =
Promise.prototype.thenThrow = function (reason) {
if (wrapsPrimitiveReceiver && isPrimitive(reason)) {
return this._then(
wrapper(reason, 1),
undefined,
undefined,
undefined,
undefined
);
}
return this._then(thrower, undefined, undefined, reason, undefined);
};
};