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/*
* Copyright (C)2005-2012 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('
static public readonly System.Type Type = typeof(T);
static public readonly bool IsValueType = haxe.lang.NullMetadata<T>.Type.IsValueType;
')
@:keep @:nativeGen @:native("haxe.lang.NullMetadata") private class NullMetadata<T>
{
}
@: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);
}
}
')
#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;
@:functionCode('
if (!haxe.lang.NullMetadata<T>.IsValueType && System.Object.ReferenceEquals(v, default(T)))
{
hasValue = false;
}
this.@value = v;
this.hasValue = hasValue;
')
public function new(v:T, hasValue:Bool)
{
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;
}
@:functionCode('
if (this.hasValue)
return value;
return null;
')
public function toDynamic():Dynamic
{
return null;
}
}
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