@Override
public Result attempt(
final List<AvailObject> args, final Interpreter interpreter, final boolean skipReturnCheck) {
assert args.size() == 4;
final A_BasicObject methodPojo = args.get(0);
final A_Tuple methodArgs = args.get(1);
final A_Tuple marshaledTypePojos = args.get(2);
final A_Type expectedType = args.get(3);
// Marshal the arguments and invoke the method.
final Method method = (Method) methodPojo.javaObject();
assert method != null;
final Object[] marshaledArgs = new Object[methodArgs.tupleSize()];
try {
for (int i = 0; i < marshaledArgs.length; i++) {
final Class<?> marshaledType = (Class<?>) marshaledTypePojos.tupleAt(i + 1).javaObject();
marshaledArgs[i] = methodArgs.tupleAt(i + 1).marshalToJava(marshaledType);
}
} catch (final MarshalingException e) {
return interpreter.primitiveFailure(
PojoDescriptor.newPojo(
RawPojoDescriptor.identityWrap(e), PojoTypeDescriptor.forClass(e.getClass())));
}
final Object result;
try {
result = method.invoke(null, marshaledArgs);
} catch (final InvocationTargetException e) {
final Throwable cause = e.getCause();
return interpreter.primitiveFailure(
PojoDescriptor.newPojo(
RawPojoDescriptor.identityWrap(cause),
PojoTypeDescriptor.forClass(cause.getClass())));
} catch (final Throwable e) {
// This is an unexpected failure.
error("reflected method call unexpectedly failed");
throw new Error();
}
if (result == null) {
return interpreter.primitiveSuccess(PojoDescriptor.nullObject());
}
final AvailObject unmarshaled = PojoTypeDescriptor.unmarshal(result, expectedType);
return interpreter.primitiveSuccess(unmarshaled);
}
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
try {
return invokeImpl(proxy, method, args);
} catch (TargetError te) {
// Unwrap target exception. If the interface declares that
// it throws the ex it will be delivered. If not it will be
// wrapped in an UndeclaredThrowable
throw te.getTarget();
} catch (EvalError ee) {
// Ease debugging...
// XThis.this refers to the enclosing class instance
if (Interpreter.DEBUG)
Interpreter.debug(
"EvalError in scripted interface: " + XThis.this.toString() + ": " + ee);
throw ee;
}
}
