57 lines
2.2 KiB
XML
57 lines
2.2 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="FuncRef" inherits="Reference" category="Core" version="3.2">
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<brief_description>
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Reference to a function in an object.
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</brief_description>
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<description>
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In GDScript, functions are not [i]first-class objects[/i]. 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 [FuncRef] using the [method @GDScript.funcref] function, a reference to a function in a given object can be created, passed around and called.
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</description>
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<tutorials>
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</tutorials>
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<methods>
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<method name="call_func" qualifiers="vararg">
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<return type="Variant">
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</return>
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<description>
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Calls the referenced function previously set by [method set_function] or [method @GDScript.funcref].
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</description>
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</method>
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<method name="call_funcv">
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<return type="Variant">
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</return>
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<argument index="0" name="arg_array" type="Array">
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</argument>
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<description>
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Calls the referenced function previously set by [method set_function] or [method @GDScript.funcref]. Contrarily to [method call_func], this method does not support a variable number of arguments but expects all parameters to be passed via a single [Array].
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</description>
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</method>
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<method name="is_valid" qualifiers="const">
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<return type="bool">
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</return>
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<description>
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Returns whether the object still exists and has the function assigned.
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</description>
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</method>
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<method name="set_function">
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<return type="void">
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</return>
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<argument index="0" name="name" type="String">
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</argument>
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<description>
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The name of the referenced function to call on the object, without parentheses or any parameters.
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</description>
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</method>
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<method name="set_instance">
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<return type="void">
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</return>
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<argument index="0" name="instance" type="Object">
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</argument>
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<description>
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The object containing the referenced function. This object must be of a type actually inheriting from [Object], not a built-in type such as [int], [Vector2] or [Dictionary].
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</description>
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</method>
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</methods>
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<constants>
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</constants>
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</class>
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