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Reflect.hx
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Reflect.hx
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/*
* 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.
*/
/**
The Reflect API is a way to manipulate values dynamically through an
abstract interface in an untyped manner. Use with care.
@see https://haxe.org/manual/std-reflection.html
**/
extern class Reflect {
/**
Tells if structure `o` has a field named `field`.
This is only guaranteed to work for anonymous structures. Refer to
`Type.getInstanceFields` for a function supporting class instances.
If `o` or `field` are null, the result is unspecified.
**/
public static function hasField( o : Dynamic, field : String ) : Bool;
/**
Returns the value of the field named `field` on object `o`.
If `o` is not an object or has no field named `field`, the result is
null.
If the field is defined as a property, its accessors are ignored. Refer
to `Reflect.getProperty` for a function supporting property accessors.
If `field` is null, the result is unspecified.
(As3) If used on a property field, the getter will be invoked. It is
not possible to obtain the value directly.
**/
public static function field( o : Dynamic, field : String ) : Dynamic;
/**
Sets the field named `field` of object `o` to value `value`.
If `o` has no field named `field`, this function is only guaranteed to
work for anonymous structures.
If `o` or `field` are null, the result is unspecified.
(As3) If used on a property field, the setter will be invoked. It is
not possible to set the value directly.
**/
public static function setField( o : Dynamic, field : String, value : Dynamic ) : Void;
/**
Returns the value of the field named `field` on object `o`, taking
property getter functions into account.
If the field is not a property, this function behaves like
`Reflect.field`, but might be slower.
If `o` or `field` are null, the result is unspecified.
**/
public static function getProperty( o : Dynamic, field : String ) : Dynamic;
/**
Sets the field named `field` of object `o` to value `value`, taking
property setter functions into account.
If the field is not a property, this function behaves like
`Reflect.setField`, but might be slower.
If `field` is null, the result is unspecified.
**/
public static function setProperty( o : Dynamic, field : String, value : Dynamic ) : Void;
/**
Call a method with the given object and arguments.
**/
public static function callMethod( o : Dynamic, func : haxe.Constraints.Function, args : Array<Dynamic> ) : Dynamic;
/**
Returns the fields of structure `o`.
This method is only guaranteed to work on anonymous structures. Refer to
`Type.getInstanceFields` for a function supporting class instances.
If `o` is null, the result is unspecified.
**/
public static function fields( o : Dynamic ) : Array<String>;
/**
Returns true if `f` is a function, false otherwise.
If `f` is null, the result is false.
**/
public static function isFunction( f : Dynamic ) : Bool;
/**
Compares `a` and `b`.
If `a` is less than `b`, the result is negative. If `b` is less than
`a`, the result is positive. If `a` and `b` are equal, the result is 0.
This function is only defined if `a` and `b` are of the same type.
If that type is a function, the result is unspecified and
`Reflect.compareMethods` should be used instead.
For all other types, the result is 0 if `a` and `b` are equal. If they
are not equal, the result depends on the type and is negative if:
- Numeric types: a is less than b
- String: a is lexicographically less than b
- Other: unspecified
If `a` and `b` are null, the result is 0. If only one of them is null,
the result is unspecified.
**/
public static function compare<T>( a : T, b : T ) : Int;
/**
Compares the functions `f1` and `f2`.
If `f1` or `f2` are null, the result is false.
If `f1` or `f2` are not functions, the result is unspecified.
Otherwise the result is true if `f1` and the `f2` are physically equal,
false otherwise.
If `f1` or `f2` are member method closures, the result is true if they
are closures of the same method on the same object value, false otherwise.
**/
public static function compareMethods( f1 : Dynamic, f2 : Dynamic ) : Bool;
/**
Tells if `v` is an object.
The result is true if `v` is one of the following:
- class instance
- structure
- `Class<T>`
- `Enum<T>`
Otherwise, including if `v` is null, the result is false.
**/
public static function isObject( v : Dynamic ) : Bool;
/**
Tells if `v` is an enum value.
The result is true if `v` is of type EnumValue, i.e. an enum
constructor.
Otherwise, including if `v` is null, the result is false.
**/
public static function isEnumValue( v : Dynamic ) : Bool;
/**
Removes the field named `field` from structure `o`.
This method is only guaranteed to work on anonymous structures.
If `o` or `field` are null, the result is unspecified.
**/
public static function deleteField( o : Dynamic, field : String ) : Bool;
/**
Copies the fields of structure `o`.
This is only guaranteed to work on anonymous structures.
If `o` is null, the result is unspecified.
**/
public static function copy<T>( o : T ) : T;
/**
Transform a function taking an array of arguments into a function that can
be called with any number of arguments.
**/
@:overload(function( f : Array<Dynamic> -> Void ) : Dynamic {})
public static function makeVarArgs( f : Array<Dynamic> -> Dynamic ) : Dynamic;
}