Package org.graalvm.nativeimage.c.constant

Class CConstant.ValueAccess

java.lang.Object

org.graalvm.nativeimage.c.constant.CConstant.ValueAccess

Enclosing class:

CConstant

public static final class CConstant.ValueAccess
extends Object

Allows access to the value of a CConstant during image generation.

Since:

19.0

Method Summary

Modifier and Type	Method	Description
static <T> T	get(Class<?> declaringClass, String methodName, Class<T> returnType)	Returns the value of a CConstant, i.e., the same value that calling the annotated method would return.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

get

public static <T> T get(Class<?> declaringClass,
 String methodName,
 Class<T> returnType)

Returns the value of a CConstant, i.e., the same value that calling the annotated method would return.

This method is useful during native image generation, when the annotated method cannot be called.

Parameters:

declaringClass - The class that contains the method.

methodName - The name of the method annotated with CConstant.

returnType - The desired type of the returned value. For integer-kind constants, the supported types are Long, Integer, and Boolean. For floating point constants, the only supported type is Double. For string constants, the only supported type is String.

Returns:

The value of the C constant.

Since:

19.0