internal static long ObjectFieldOffset(sun.misc.Unsafe UNSAFE, String field, Class klazz)
{
try
{
return(UNSAFE.objectFieldOffset(klazz.GetDeclaredField(field)));
}
catch (NoSuchFieldException e)
{
// Convert Exception to corresponding Error
NoSuchFieldError error = new NoSuchFieldError(field);
error.InitCause(e);
throw error;
}
}
/// <summary>
/// The JVM is resolving a CONSTANT_MethodHandle CP entry. And it wants our help.
/// It will make an up-call to this method. (Do not change the name or signature.)
/// The type argument is a Class for field requests and a MethodType for non-fields.
/// <para>
/// Recent versions of the JVM may also pass a resolved MemberName for the type.
/// In that case, the name is ignored and may be null.
/// </para>
/// </summary>
internal static MethodHandle LinkMethodHandleConstant(Class callerClass, int refKind, Class defc, String name, Object type)
{
try
{
Lookup lookup = IMPL_LOOKUP.@in(callerClass);
assert(RefKindIsValid(refKind));
return(lookup.linkMethodHandleConstant((sbyte)refKind, defc, name, type));
}
catch (IllegalAccessException ex)
{
Throwable cause = ex.InnerException;
if (cause is AbstractMethodError)
{
throw (AbstractMethodError)cause;
}
else
{
Error err = new IllegalAccessError(ex.Message);
throw InitCauseFrom(err, ex);
}
}
catch (NoSuchMethodException ex)
{
Error err = new NoSuchMethodError(ex.Message);
throw InitCauseFrom(err, ex);
}
catch (NoSuchFieldException ex)
{
Error err = new NoSuchFieldError(ex.Message);
throw InitCauseFrom(err, ex);
}
catch (ReflectiveOperationException ex)
{
Error err = new IncompatibleClassChangeError();
throw InitCauseFrom(err, ex);
}
}
