Fun.js
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/**
* Fun.js
*
* Released under LGPL License.
* Copyright (c) 1999-2015 Ephox Corp. All rights reserved
*
* License: http://www.tinymce.com/license
* Contributing: http://www.tinymce.com/contributing
*/
/**
* Functional utility class.
*
* @private
* @class tinymce.util.Fun
*/
define("tinymce/util/Fun", [], function() {
var slice = [].slice;
function constant(value) {
return function() {
return value;
};
}
function negate(predicate) {
return function(x) {
return !predicate(x);
};
}
function compose(f, g) {
return function(x) {
return f(g(x));
};
}
function or() {
var args = slice.call(arguments);
return function(x) {
for (var i = 0; i < args.length; i++) {
if (args[i](x)) {
return true;
}
}
return false;
};
}
function and() {
var args = slice.call(arguments);
return function(x) {
for (var i = 0; i < args.length; i++) {
if (!args[i](x)) {
return false;
}
}
return true;
};
}
function curry(fn) {
var args = slice.call(arguments);
if (args.length - 1 >= fn.length) {
return fn.apply(this, args.slice(1));
}
return function() {
var tempArgs = args.concat([].slice.call(arguments));
return curry.apply(this, tempArgs);
};
}
return {
constant: constant,
negate: negate,
and: and,
or: or,
curry: curry,
compose: compose
};
});