# class Reflect

#### no package

Available on all platforms

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

### Static methods

###

`staticcallMethod (o:Dynamic, func:Function, args:Array<Dynamic>):Dynamic`

Available on Android, iOS, Linux, macOS, Neko, Windows

Call a method with the given object and arguments.

###

`staticcompare<T> (a:T, b:T):Int`

Available on Android, Flash, HTML5, iOS, Linux, macOS, Windows

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.

###

`staticcompareMethods (f1:Dynamic, f2:Dynamic):Bool`

Available on Android, Flash, HTML5, iOS, Linux, macOS, Windows

Compares the functions `f1` and `f2`.

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.

###

`staticdeleteField (o:Dynamic, field:String):Bool`

Available on HTML5

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.

###

`staticfield (o:Dynamic, field:String):Dynamic`

Available on Android, Flash, HTML5, iOS, Linux, macOS, Windows

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.

###

`staticfields (o:Dynamic):Array<String>`

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.

###

`staticgetProperty (o:Dynamic, field:String):Dynamic`

Available on Flash

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.

###

`statichasField (o:Dynamic, field:String):Bool`

Available on Android, Flash, iOS, Linux, macOS, Neko, Windows

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.

###

`staticisEnumValue (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.

###

`staticisFunction (f:Dynamic):Bool`

Returns true if `f` is a function, false otherwise.

If `f` is null, the result is false.

###

`staticisObject (v:Dynamic):Bool`

Available on Android, iOS, Linux, macOS, Windows

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.

###

`staticmakeVarArgs (f:Array<Dynamic> ‑> Dynamic):Dynamic`

`staticmakeVarArgs (f:Array<Dynamic> ‑> Void):Dynamic`

Transform a function taking an array of arguments into a function that can be called with any number of arguments.

###

`staticsetField (o:Dynamic, field:String, value:Dynamic):Void`

Available on Android, iOS, Linux, macOS, Windows

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.