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58 lines
5.3 KiB
ReStructuredText
58 lines
5.3 KiB
ReStructuredText
.. Generated automatically by doc/tools/makerst.py in Godot's source tree.
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.. DO NOT EDIT THIS FILE, but the doc/base/classes.xml source instead.
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.. _class_FuncRef:
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FuncRef
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=======
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**Inherits:** :ref:`Reference<class_reference>` **<** :ref:`Object<class_object>`
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**Category:** Core
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Brief Description
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-----------------
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Reference to a function in an object.
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Member Functions
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----------------
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+-------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| void | :ref:`call_func<class_FuncRef_call_func>` **(** :ref:`Variant<class_variant>` arg0=NULL, :ref:`Variant<class_variant>` arg1=NULL, :ref:`Variant<class_variant>` arg2=NULL, :ref:`Variant<class_variant>` arg3=NULL, :ref:`Variant<class_variant>` arg4=NULL, :ref:`Variant<class_variant>` arg5=NULL, :ref:`Variant<class_variant>` arg6=NULL, :ref:`Variant<class_variant>` arg7=NULL, :ref:`Variant<class_variant>` arg8=NULL, :ref:`Variant<class_variant>` arg9=NULL **)** |
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+-------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| void | :ref:`set_function<class_FuncRef_set_function>` **(** :ref:`String<class_string>` name **)** |
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+-------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| void | :ref:`set_instance<class_FuncRef_set_instance>` **(** :ref:`Object<class_object>` instance **)** |
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+-------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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Description
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-----------
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In GDScript, functions are not *first-class objects*. This means it is impossible to store them directly as variables, return them from another function, or pass them as arguments.
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However, by creating a :ref:`FuncRef<class_funcref>` using the :ref:`@GDScript.funcref<class_@GDScript_funcref>` function, a reference to a function in a given object can be created, passed around and called.
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Member Function Description
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---------------------------
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.. _class_FuncRef_call_func:
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- void **call_func** **(** :ref:`Variant<class_variant>` arg0=NULL, :ref:`Variant<class_variant>` arg1=NULL, :ref:`Variant<class_variant>` arg2=NULL, :ref:`Variant<class_variant>` arg3=NULL, :ref:`Variant<class_variant>` arg4=NULL, :ref:`Variant<class_variant>` arg5=NULL, :ref:`Variant<class_variant>` arg6=NULL, :ref:`Variant<class_variant>` arg7=NULL, :ref:`Variant<class_variant>` arg8=NULL, :ref:`Variant<class_variant>` arg9=NULL **)**
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Call the referenced function with the given arguments. The argument count must correspond to the required number of arguments in the function. Returns the return value of the function call.
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.. _class_FuncRef_set_function:
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- void **set_function** **(** :ref:`String<class_string>` name **)**
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Set the name of the function to call on the object, without parentheses or any parameters.
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.. _class_FuncRef_set_instance:
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- void **set_instance** **(** :ref:`Object<class_object>` instance **)**
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Set the object on which to call the referenced function. This object must be of a type actually inheriting from :ref:`Object<class_object>`, not a built-in type such as :ref:`int<class_int>`, :ref:`Vector2<class_vector2>` or :ref:`Dictionary<class_dictionary>`.
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