/**
* Extracts a handle type for invoking the given method via invokespecial.
*
* @param methodDescription The method for which a handle type should be found.
* @return The handle type for the given method.
*/
protected static HandleType ofSpecial(MethodDescription methodDescription) {
if (methodDescription.isStatic() || methodDescription.isAbstract()) {
throw new IllegalArgumentException(
"Cannot invoke " + methodDescription + " via invokespecial");
}
return methodDescription.isConstructor() ? INVOKE_SPECIAL_CONSTRUCTOR : INVOKE_SPECIAL;
}
/**
* Extracts a handle type for invoking the given method.
*
* @param methodDescription The method for which a handle type should be found.
* @return The handle type for the given method.
*/
protected static HandleType of(MethodDescription methodDescription) {
if (methodDescription.isStatic()) {
return INVOKE_STATIC;
} else if (methodDescription.isPrivate()) {
return INVOKE_SPECIAL;
} else if (methodDescription.isConstructor()) {
return INVOKE_SPECIAL_CONSTRUCTOR;
} else if (methodDescription.getDeclaringType().asRawType().isInterface()) {
return INVOKE_INTERFACE;
} else {
return INVOKE_VIRTUAL;
}
}
@Test
public void testSuperConstructorIsInvokable() throws Exception {
when(superMethod.isConstructor()).thenReturn(true);
Implementation.SpecialMethodInvocation specialMethodInvocation =
implementationTarget.invokeSuper(superMethod, methodLookup);
assertThat(specialMethodInvocation.isValid(), is(true));
assertThat(specialMethodInvocation.getMethodDescription(), is(superMethodConstructor));
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, QUXBAZ, BAZBAR, 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();
}