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- /*
- * 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.
- */
- package cs.internal;
- @:classCode('//This function is here to be used with Reflection, when the haxe.lang.Null type is known
- public static haxe.lang.Null<T> _ofDynamic(object obj) {
- if (obj == null) {
- return new haxe.lang.Null<T>(default(T), false);
- } else if (typeof(T).Equals(typeof(double))) {
- return new haxe.lang.Null<T>((T) (object) haxe.lang.Runtime.toDouble(obj), true);
- } else if (typeof(T).Equals(typeof(int))) {
- return new haxe.lang.Null<T>((T) (object) haxe.lang.Runtime.toInt(obj), true);
- } else {
- return new haxe.lang.Null<T>((T) obj, true);
- }
- }
- public static implicit operator haxe.lang.Null<T>(T val) {
- return new haxe.lang.Null<T>(val, true);
- }
- public static implicit operator Null<T>(__NoValue__ noValue) {
- return new haxe.lang.Null<T>(default(T), false);
- }
- public sealed class __NoValue__ {
- private __NoValue__() {}
- }
- override public string ToString() {
- if (!hasValue) return "null";
- else return value.ToString();
- }
- ')
- #if core_api_serialize
- @:meta(System.Serializable)
- #end
- @:keep @:struct @:nativeGen @:native("haxe.lang.Null") private class Nullable<T> {
- @:readOnly public var value(default, never):T;
- @:readOnly public var hasValue(default, never):Bool;
- public function new(v:T, hasValue:Bool) {
- if (hasValue && cs.system.Object.ReferenceEquals(v, null)) {
- hasValue = false;
- }
- untyped this.value = v;
- untyped this.hasValue = hasValue;
- }
- @:functionCode('if (obj == null) {
- return new haxe.lang.Null<D>(default(D), false);
- } else if (typeof(D).Equals(typeof(double))) {
- return new haxe.lang.Null<D>((D) (object) haxe.lang.Runtime.toDouble(obj), true);
- } else if (typeof(D).Equals(typeof(int))) {
- return new haxe.lang.Null<D>((D) (object) haxe.lang.Runtime.toInt(obj), true);
- } else {
- return new haxe.lang.Null<D>((D) obj, true);
- }')
- public static function ofDynamic<D>(obj:Dynamic):Nullable<D> {
- return null;
- }
- public function toDynamic():Dynamic {
- if (this.hasValue)
- return value;
- return null;
- }
- }
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