@Test
public void testAbstractSuperTypeMethodIsNotInvokable() throws Exception {
when(superMethod.isSpecializableFor(superType)).thenReturn(true);
when(superMethod.isAbstract()).thenReturn(true);
Implementation.SpecialMethodInvocation specialMethodInvocation =
implementationTarget.invokeSuper(superMethod, methodLookup);
assertThat(specialMethodInvocation.isValid(), is(false));
}
/**
* Creates a method handle representation of the given method for an explicit special method
* invocation of an otherwise virtual method.
*
* @param methodDescription The method ro represent.
* @param typeDescription The type on which the method is to be invoked on as a special method
* invocation.
* @return A method handle representing the given method as special method invocation.
*/
public static MethodHandle ofSpecial(
MethodDescription methodDescription, TypeDescription typeDescription) {
if (!methodDescription.isSpecializableFor(typeDescription)) {
throw new IllegalArgumentException(
"Cannot specialize " + methodDescription + " for " + typeDescription);
}
return new MethodHandle(
HandleType.ofSpecial(methodDescription),
typeDescription,
methodDescription.getInternalName(),
methodDescription.getReturnType().asRawType(),
methodDescription.getParameters().asTypeList().asRawTypes());
}
@Test
public void testSuperTypeMethodIsInvokable() throws Exception {
when(superMethod.isSpecializableFor(superType)).thenReturn(true);
Implementation.SpecialMethodInvocation specialMethodInvocation =
implementationTarget.invokeSuper(superMethod, methodLookup);
assertThat(specialMethodInvocation.isValid(), is(true));
assertThat(specialMethodInvocation.getMethodDescription(), is(superMethod));
assertThat(specialMethodInvocation.getTypeDescription(), is(superType));
MethodVisitor methodVisitor = mock(MethodVisitor.class);
Implementation.Context implementationContext = mock(Implementation.Context.class);
StackManipulation.Size size =
specialMethodInvocation.apply(methodVisitor, implementationContext);
verify(methodVisitor).visitMethodInsn(Opcodes.INVOKESPECIAL, BAR, BAZ, FOOBAR, false);
verifyNoMoreInteractions(methodVisitor);
verifyZeroInteractions(implementationContext);
assertThat(size.getSizeImpact(), is(0));
assertThat(size.getMaximalSize(), is(0));
}
@Override
@Before
public void setUp() throws Exception {
when(parameterList.asTypeList()).thenReturn(parameterTypes);
when(instrumentedType.getSupertype()).thenReturn(superType);
when(superType.getDeclaredMethods())
.thenReturn(new MethodList.Explicit(Collections.singletonList(superMethodConstructor)));
when(superType.getInternalName()).thenReturn(BAR);
when(superMethod.getDeclaringType()).thenReturn(superType);
when(superType.getStackSize()).thenReturn(StackSize.ZERO);
when(superMethod.getReturnType()).thenReturn(returnType);
when(superMethod.getInternalName()).thenReturn(BAZ);
when(superMethod.getDescriptor()).thenReturn(FOOBAR);
when(superMethod.getParameters()).thenReturn(parameterList);
when(superMethodConstructor.isConstructor()).thenReturn(true);
when(superMethodConstructor.getParameters()).thenReturn(parameterList);
when(superMethodConstructor.getReturnType()).thenReturn(returnType);
when(superMethodConstructor.isSpecializableFor(superType)).thenReturn(true);
when(superMethodConstructor.getInternalName()).thenReturn(QUXBAZ);
when(superMethodConstructor.getDescriptor()).thenReturn(BAZBAR);
super.setUp();
}
