Interface ScannerMsgFunc

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 ScannerMsgFunc
extends FunctionPointer

Functional interface declaration of the ScannerMsgFunc callback.

See Also:

• run(Scanner, String, boolean)

Method Summary

Modifier and Type	Method	Description
void	run(Scanner scanner, String message, boolean error)	Specifies the type of the message handler function.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment, int) method.
default void	upcall(MemorySegment scanner, MemorySegment message, int error)	The upcall method is called from native code.

Method Details

run

void run(Scanner scanner,
 String message,
 boolean error)

Specifies the type of the message handler function.

Parameters:

scanner - a GScanner

message - the message

error - true if the message signals an error, false if it signals a warning.

upcall

default void upcall(MemorySegment scanner,
 MemorySegment message,
 int error)

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

toCallback

default MemorySegment toCallback(Arena arena)

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

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer