Interface CopyFunc

All Superinterfaces:

FunctionPointer

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
@Generated("org.javagi.JavaGI")
public interface CopyFunc
extends FunctionPointer

Functional interface declaration of the CopyFunc callback.

See Also:

• run(MemorySegment, MemorySegment)

Method Summary

Modifier and Type	Method	Description
MemorySegment	run(MemorySegment src, @Nullable MemorySegment data)	A function of this signature is used to copy the node data when doing a deep-copy of a tree.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment) method.
default MemorySegment	upcall(MemorySegment src, MemorySegment data)	The upcall method is called from native code.

Method Details

run

MemorySegment run(MemorySegment src,
 @Nullable MemorySegment data)

A function of this signature is used to copy the node data when doing a deep-copy of a tree.

Parameters:

src - A pointer to the data which should be copied

data - Additional data

Returns:

A pointer to the copy

Since:

2.4

upcall

default MemorySegment upcall(MemorySegment src,
 MemorySegment data)

The upcall method is called from native code. The parameters are marshaled and run(MemorySegment, MemorySegment) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(MemorySegment, MemorySegment) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer