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> Unreal Engine API Reference > Developer > RigVMDeveloper > RigVMCompiler > FRigVMCopyExprAST

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FRigVMCopyExprAST

An abstract syntax tree copy expression represents the an assignment of one expression to another which causes / requires a copy operation.

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Inheritance Hierarchy

FRigVMExprAST

FRigVMAssignExprAST

FRigVMCopyExprAST

References

Module	RigVMDeveloper
Header	/Engine/Source/Developer/RigVMDeveloper/Public/RigVMCompiler/RigVMAST.h
Include	#include "RigVMCompiler/RigVMAST.h"

Syntax

class FRigVMCopyExprAST : public FRigVMAssignExprAST

Remarks

An abstract syntax tree copy expression represents the an assignment of one expression to another which causes / requires a copy operation. Within the RigVM AST this is only used for copying work state out of / into parameters or when composing / decomposing a structure (for ex: assigning a float to a vector.x). In C++ the copy expression is used for structures, for ex: FVector A = B; The copy expression references two pins / a link from the model.

Constructors

	Name	Description
	FRigVMCopyExprAST ( const FRigVMCopyExprAST& )	Disable copy constructor
	FRigVMCopyExprAST ( const FRigVMParserAST* InParse..., URigVMPin* InSourcePin, URigVMPin* InTargetPin )	Default constructor (protected so that only parser can access it)

Destructors

	Name	Description
	~FRigVMCopyExprAST()	Virtual destructor

Overridden from FRigVMExprAST

		Name	Description
	bool	IsA ( EType InType )	Overload of the type checking mechanism

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