56 lines
1.7 KiB
JavaScript
56 lines
1.7 KiB
JavaScript
|
"use strict";
|
||
|
|
module.exports =
|
||
|
|
function(Promise, INTERNAL, tryConvertToPromise, apiRejection, debug) {
|
||
|
|
var util = require("./util");
|
||
|
|
var tryCatch = util.tryCatch;
|
||
|
|
|
||
|
|
Promise.method = function (fn) {
|
||
|
|
if (typeof fn !== "function") {
|
||
|
|
throw new Promise.TypeError("expecting a function but got " + util.classString(fn));
|
||
|
|
}
|
||
|
|
return function () {
|
||
|
|
var ret = new Promise(INTERNAL);
|
||
|
|
ret._captureStackTrace();
|
||
|
|
ret._pushContext();
|
||
|
|
var value = tryCatch(fn).apply(this, arguments);
|
||
|
|
var promiseCreated = ret._popContext();
|
||
|
|
debug.checkForgottenReturns(
|
||
|
|
value, promiseCreated, "Promise.method", ret);
|
||
|
|
ret._resolveFromSyncValue(value);
|
||
|
|
return ret;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
Promise.attempt = Promise["try"] = function (fn) {
|
||
|
|
if (typeof fn !== "function") {
|
||
|
|
return apiRejection("expecting a function but got " + util.classString(fn));
|
||
|
|
}
|
||
|
|
var ret = new Promise(INTERNAL);
|
||
|
|
ret._captureStackTrace();
|
||
|
|
ret._pushContext();
|
||
|
|
var value;
|
||
|
|
if (arguments.length > 1) {
|
||
|
|
debug.deprecated("calling Promise.try with more than 1 argument");
|
||
|
|
var arg = arguments[1];
|
||
|
|
var ctx = arguments[2];
|
||
|
|
value = util.isArray(arg) ? tryCatch(fn).apply(ctx, arg)
|
||
|
|
: tryCatch(fn).call(ctx, arg);
|
||
|
|
} else {
|
||
|
|
value = tryCatch(fn)();
|
||
|
|
}
|
||
|
|
var promiseCreated = ret._popContext();
|
||
|
|
debug.checkForgottenReturns(
|
||
|
|
value, promiseCreated, "Promise.try", ret);
|
||
|
|
ret._resolveFromSyncValue(value);
|
||
|
|
return ret;
|
||
|
|
};
|
||
|
|
|
||
|
|
Promise.prototype._resolveFromSyncValue = function (value) {
|
||
|
|
if (value === util.errorObj) {
|
||
|
|
this._rejectCallback(value.e, false);
|
||
|
|
} else {
|
||
|
|
this._resolveCallback(value, true);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
};
|