2025-01-22 16:18:30 +01:00

203 lines
6.5 KiB
Haxe

/*
* 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.
*/
/**
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.
**/
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.
**/
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.
**/
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.
**/
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.
**/
static function setProperty(o:Dynamic, field:String, value:Dynamic):Void;
/**
Call a method `func` with the given arguments `args`.
The object `o` is ignored in most cases. It serves as the `this`-context in the following
situations:
* (neko) Allows switching the context to `o` in all cases.
* (macro) Same as neko for Haxe 3. No context switching in Haxe 4.
* (js, lua) Require the `o` argument if `func` does not, but should have a context.
This can occur by accessing a function field natively, e.g. through `Reflect.field`
or by using `(object : Dynamic).field`. However, if `func` has a context, `o` is
ignored like on other targets.
**/
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.
**/
static function fields(o:Dynamic):Array<String>;
/**
Returns true if `f` is a function, false otherwise.
If `f` is null, the result is false.
**/
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.
**/
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.
**/
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.
**/
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.
**/
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.
**/
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 `null`.
**/
static function copy<T>(o:Null<T>):Null<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 {})
static function makeVarArgs(f:Array<Dynamic>->Dynamic):Dynamic;
}