devsite/node_modules/promise/src/synchronous.js
2024-07-07 18:49:38 -07:00

63 lines
1.4 KiB
JavaScript

'use strict';
var Promise = require('./core.js');
module.exports = Promise;
Promise.enableSynchronous = function () {
Promise.prototype.isPending = function() {
return this.getState() == 0;
};
Promise.prototype.isFulfilled = function() {
return this.getState() == 1;
};
Promise.prototype.isRejected = function() {
return this.getState() == 2;
};
Promise.prototype.getValue = function () {
if (this._state === 3) {
return this._value.getValue();
}
if (!this.isFulfilled()) {
throw new Error('Cannot get a value of an unfulfilled promise.');
}
return this._value;
};
Promise.prototype.getReason = function () {
if (this._state === 3) {
return this._value.getReason();
}
if (!this.isRejected()) {
throw new Error('Cannot get a rejection reason of a non-rejected promise.');
}
return this._value;
};
Promise.prototype.getState = function () {
if (this._state === 3) {
return this._value.getState();
}
if (this._state === -1 || this._state === -2) {
return 0;
}
return this._state;
};
};
Promise.disableSynchronous = function() {
Promise.prototype.isPending = undefined;
Promise.prototype.isFulfilled = undefined;
Promise.prototype.isRejected = undefined;
Promise.prototype.getValue = undefined;
Promise.prototype.getReason = undefined;
Promise.prototype.getState = undefined;
};