HaxeFoundation.haxe/std/js/_std/Std.hx

/*
 * Copyright (C)2005-2017 Haxe Foundation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
import js.Boot;

@:keepInit
@:coreApi class Std {

	public static inline function is( v : Dynamic, t : Dynamic ) : Bool {
		return untyped js.Boot.__instanceof(v,t);
	}

	public static inline function instance<T:{},S:T>( value : T, c : Class<S> ) : S {
		return untyped __instanceof__(value, c) ? cast value : null;
	}

	@:pure
	public static function string( s : Dynamic ) : String {
		return untyped js.Boot.__string_rec(s,"");
	}

	public static inline function int( x : Float ) : Int {
		return (cast x) | 0;
	}

	@:pure
	public static function parseInt( x : String ) : Null<Int> {
		var v = untyped __js__("parseInt")(x, 10);
		// parse again if hexadecimal
		if( v == 0 && (x.charCodeAt(1) == 'x'.code || x.charCodeAt(1) == 'X'.code) )
			v = untyped __js__("parseInt")(x);
		if( untyped __js__("isNaN")(v) )
			return null;
		return cast v;
	}

	public static inline function parseFloat( x : String ) : Float {
		return untyped __js__("parseFloat")(x);
	}

	public static function random( x : Int ) : Int {
		return x <= 0 ? 0 : Math.floor(Math.random()*x);
	}

	static function __init__() : Void untyped {
		__feature__("js.Boot.getClass",String.prototype.__class__ = __feature__("Type.resolveClass",$hxClasses["String"] = String,String));
		__feature__("js.Boot.isClass",String.__name__ = __feature__("Type.getClassName",["String"],true));
		__feature__("Type.resolveClass",$hxClasses["Array"] = Array);
		__feature__("js.Boot.isClass",Array.__name__ = __feature__("Type.getClassName",["Array"],true));
		__feature__("Date.*", {
			__feature__("js.Boot.getClass",__js__('Date').prototype.__class__ = __feature__("Type.resolveClass",$hxClasses["Date"] = __js__('Date'),__js__('Date')));
			__feature__("js.Boot.isClass",__js__('Date').__name__ = ["Date"]);
		});
		__feature__("Int.*",__js__('var Int = { };'));
		__feature__("Dynamic.*",__js__('var Dynamic = { };'));
		__feature__("Float.*",__js__('var Float = Number'));
		__feature__("Bool.*",__js__('var Bool = Boolean'));
		__feature__("Class.*",__js__('var Class = { };'));
		__feature__("Enum.*",__js__('var Enum = { };'));

#if (js_es < 5)
		__feature__("Array.map",
			if( Array.prototype.map == null )
				Array.prototype.map = function(f) {
					var a = [];
					for( i in 0...__this__.length )
						a[i] = f(__this__[i]);
					return a;
				}
		);
		__feature__("Array.filter",
			if( Array.prototype.filter == null )
				Array.prototype.filter = function(f) {
					var a = [];
					for( i in 0...__this__.length ) {
						var e = __this__[i];
						if( f(e) ) a.push(e);
					}
					return a;
				}
		);
#end
	}

}