org.graalvm.nativeimage.c.struct

Annotation Type CFieldOffset

@Retention(value=RUNTIME)
 @Target(value=METHOD)
public @interface CFieldOffset

Denotes a method as a field offset access of a C struct. The method must not have any parameters. The return type must be a primitive integer type or a word type.

Calls to the method are replaced with a compile time constant. If the annotation is used on a non-static method, the receiver is ignored. Java does not allow an interface method to be declared static native. So the annotated method must either be non-static (with the receiver being ignored), or static but non-native (with the method body being ignored).

Since:

19.0

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
String	value Specifies the field name inside the C struct.

Element Detail

value

public abstract String value

Specifies the field name inside the C struct. If no name is provided, the method name is used as the field name. A possible "offsetOf" prefix of the method name is removed.

Since:

19.0

Default:

""