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musix-oss/node_modules/when/lib/apply.js
2020-03-03 22:30:50 +02:00

56 lines
1.2 KiB
JavaScript

/** @license MIT License (c) copyright 2010-2014 original author or authors */
/** @author Brian Cavalier */
/** @author John Hann */
(function(define) { 'use strict';
define(function() {
makeApply.tryCatchResolve = tryCatchResolve;
return makeApply;
function makeApply(Promise, call) {
if(arguments.length < 2) {
call = tryCatchResolve;
}
return apply;
function apply(f, thisArg, args) {
var p = Promise._defer();
var l = args.length;
var params = new Array(l);
callAndResolve({ f:f, thisArg:thisArg, args:args, params:params, i:l-1, call:call }, p._handler);
return p;
}
function callAndResolve(c, h) {
if(c.i < 0) {
return call(c.f, c.thisArg, c.params, h);
}
var handler = Promise._handler(c.args[c.i]);
handler.fold(callAndResolveNext, c, void 0, h);
}
function callAndResolveNext(c, x, h) {
c.params[c.i] = x;
c.i -= 1;
callAndResolve(c, h);
}
}
function tryCatchResolve(f, thisArg, args, resolver) {
try {
resolver.resolve(f.apply(thisArg, args));
} catch(e) {
resolver.reject(e);
}
}
});
}(typeof define === 'function' && define.amd ? define : function(factory) { module.exports = factory(); }));