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

/*
 * Copyright (C)2005-2019 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.
 */
@:coreApi class Std {
	@:ifFeature("typed_cast")
	public static inline function is(v:Dynamic, t:Dynamic):Bool {
		return isOfType(v, t);
	}

	public static function isOfType(v:Dynamic, t:Dynamic):Bool {
		return untyped neko.Boot.__instanceof(v, t);
	}

	public static function downcast<T:{}, S:T>(value:T, c:Class<S>):S {
		return Std.isOfType(value, c) ? cast value : null;
	}

	@:deprecated('Std.instance() is deprecated. Use Std.downcast() instead.')
	public static function instance<T:{}, S:T>(value:T, c:Class<S>):S {
		return inline downcast(value, c);
	}

	public static function string(s:Dynamic):String {
		return new String(untyped __dollar__string(s));
	}

	public static function int(x:Float):Int {
		if (x < 0)
			return Math.ceil(x);
		return Math.floor(x);
	}

	public static function parseInt(x:String):Null<Int>
		untyped {
			var t = __dollar__typeof(x);
			if (t == __dollar__tint)
				return x;
			if (t == __dollar__tfloat)
				return __dollar__int(x);
			if (t != __dollar__tobject)
				return null;
			return __dollar__int(x.__s);
		}

	public static function parseFloat(x:String):Float
		untyped {
			if (x == null)
				return Math.NaN;
			var t = __dollar__float(x.__s);
			if (t == null)
				t = Math.NaN;
			return t;
		}

	public static function random(x:Int):Int {
		return untyped Math._rand_int(Math.__rnd, x);
	}

	static function __init__():Void
		untyped {
			Int = {__name__: ["Int"]};
			Float = {__name__: ["Float"]};
			Bool = {__ename__: ["Bool"]};
			Dynamic = {__name__: ["Dynamic"]};
			Class = {__name__: ["Class"]};
			Enum = {};
			var cl = neko.Boot.__classes;
			cl.Int = Int;
			cl.Float = Float;
			cl.Bool = Bool;
			cl.Dynamic = Dynamic;
			cl.Class = Class;
			cl.Enum = Enum;
		}
}