124 lines
3.8 KiB
JavaScript
124 lines
3.8 KiB
JavaScript
|
"use strict";
|
||
|
var util = require("./util.js");
|
||
|
var maybeWrapAsError = util.maybeWrapAsError;
|
||
|
var errors = require("./errors.js");
|
||
|
var TimeoutError = errors.TimeoutError;
|
||
|
var OperationalError = errors.OperationalError;
|
||
|
var haveGetters = util.haveGetters;
|
||
|
var es5 = require("./es5.js");
|
||
|
|
||
|
function isUntypedError(obj) {
|
||
|
return obj instanceof Error &&
|
||
|
es5.getPrototypeOf(obj) === Error.prototype;
|
||
|
}
|
||
|
|
||
|
var rErrorKey = /^(?:name|message|stack|cause)$/;
|
||
|
function wrapAsOperationalError(obj) {
|
||
|
var ret;
|
||
|
if (isUntypedError(obj)) {
|
||
|
ret = new OperationalError(obj);
|
||
|
ret.name = obj.name;
|
||
|
ret.message = obj.message;
|
||
|
ret.stack = obj.stack;
|
||
|
var keys = es5.keys(obj);
|
||
|
for (var i = 0; i < keys.length; ++i) {
|
||
|
var key = keys[i];
|
||
|
if (!rErrorKey.test(key)) {
|
||
|
ret[key] = obj[key];
|
||
|
}
|
||
|
}
|
||
|
return ret;
|
||
|
}
|
||
|
util.markAsOriginatingFromRejection(obj);
|
||
|
return obj;
|
||
|
}
|
||
|
|
||
|
function nodebackForPromise(promise) {
|
||
|
return function(err, value) {
|
||
|
if (promise === null) return;
|
||
|
|
||
|
if (err) {
|
||
|
var wrapped = wrapAsOperationalError(maybeWrapAsError(err));
|
||
|
promise._attachExtraTrace(wrapped);
|
||
|
promise._reject(wrapped);
|
||
|
} else if (arguments.length > 2) {
|
||
|
var $_len = arguments.length;var args = new Array($_len - 1); for(var $_i = 1; $_i < $_len; ++$_i) {args[$_i - 1] = arguments[$_i];}
|
||
|
promise._fulfill(args);
|
||
|
} else {
|
||
|
promise._fulfill(value);
|
||
|
}
|
||
|
|
||
|
promise = null;
|
||
|
};
|
||
|
}
|
||
|
|
||
|
|
||
|
var PromiseResolver;
|
||
|
if (!haveGetters) {
|
||
|
PromiseResolver = function (promise) {
|
||
|
this.promise = promise;
|
||
|
this.asCallback = nodebackForPromise(promise);
|
||
|
this.callback = this.asCallback;
|
||
|
};
|
||
|
}
|
||
|
else {
|
||
|
PromiseResolver = function (promise) {
|
||
|
this.promise = promise;
|
||
|
};
|
||
|
}
|
||
|
if (haveGetters) {
|
||
|
var prop = {
|
||
|
get: function() {
|
||
|
return nodebackForPromise(this.promise);
|
||
|
}
|
||
|
};
|
||
|
es5.defineProperty(PromiseResolver.prototype, "asCallback", prop);
|
||
|
es5.defineProperty(PromiseResolver.prototype, "callback", prop);
|
||
|
}
|
||
|
|
||
|
PromiseResolver._nodebackForPromise = nodebackForPromise;
|
||
|
|
||
|
PromiseResolver.prototype.toString = function () {
|
||
|
return "[object PromiseResolver]";
|
||
|
};
|
||
|
|
||
|
PromiseResolver.prototype.resolve =
|
||
|
PromiseResolver.prototype.fulfill = function (value) {
|
||
|
if (!(this instanceof PromiseResolver)) {
|
||
|
throw new TypeError("Illegal invocation, resolver resolve/reject must be called within a resolver context. Consider using the promise constructor instead.\u000a\u000a See http://goo.gl/sdkXL9\u000a");
|
||
|
}
|
||
|
this.promise._resolveCallback(value);
|
||
|
};
|
||
|
|
||
|
PromiseResolver.prototype.reject = function (reason) {
|
||
|
if (!(this instanceof PromiseResolver)) {
|
||
|
throw new TypeError("Illegal invocation, resolver resolve/reject must be called within a resolver context. Consider using the promise constructor instead.\u000a\u000a See http://goo.gl/sdkXL9\u000a");
|
||
|
}
|
||
|
this.promise._rejectCallback(reason);
|
||
|
};
|
||
|
|
||
|
PromiseResolver.prototype.progress = function (value) {
|
||
|
if (!(this instanceof PromiseResolver)) {
|
||
|
throw new TypeError("Illegal invocation, resolver resolve/reject must be called within a resolver context. Consider using the promise constructor instead.\u000a\u000a See http://goo.gl/sdkXL9\u000a");
|
||
|
}
|
||
|
this.promise._progress(value);
|
||
|
};
|
||
|
|
||
|
PromiseResolver.prototype.cancel = function (err) {
|
||
|
this.promise.cancel(err);
|
||
|
};
|
||
|
|
||
|
PromiseResolver.prototype.timeout = function () {
|
||
|
this.reject(new TimeoutError("timeout"));
|
||
|
};
|
||
|
|
||
|
PromiseResolver.prototype.isResolved = function () {
|
||
|
return this.promise.isResolved();
|
||
|
};
|
||
|
|
||
|
PromiseResolver.prototype.toJSON = function () {
|
||
|
return this.promise.toJSON();
|
||
|
};
|
||
|
|
||
|
module.exports = PromiseResolver;
|