private static <T> void processConstructor(CtConstructor<T> c, CtClass<T> toMerge) {
CtStatement firstStmt = c.getBody().getStatements().get(0);
if (firstStmt instanceof CtInvocation) {
CtInvocation<?> superConstructorCall = (CtInvocation) firstStmt;
if (!(superConstructorCall.getExecutable().getDeclaration() instanceof CtConstructor)) return;
CtConstructor superConstructor =
(CtConstructor) superConstructorCall.getExecutable().getDeclaration();
if (superConstructor.getDeclaringType() == toMerge) {
CtBlock superConstructorBody = c.getFactory().Core().clone(superConstructor.getBody());
superConstructorBody.accept(
new CtScanner() {
@Override
public <T> void visitCtParameterReference(CtParameterReference<T> ref) {
int parameterOrder = superConstructor.getParameters().indexOf(ref.getDeclaration());
ref.setDeclaringExecutable(c.getReference());
CtExpression<?> arg = superConstructorCall.getArguments().get(parameterOrder);
if (!(arg instanceof CtVariableAccess))
throw sgce("super() should be directly called in " + c);
CtVariable param = ((CtVariableAccess) arg).getVariable().getDeclaration();
if (!(param instanceof CtParameter))
throw sgce("super() should be directly called in " + c);
ref.setSimpleName(param.getSimpleName());
super.visitCtParameterReference(ref);
}
});
c.getBody().removeStatement(firstStmt);
List<CtStatement> superConstructorBodyStatements = superConstructorBody.getStatements();
for (int i = superConstructorBodyStatements.size() - 1; i >= 0; i--) {
c.getBody().insertBegin(superConstructorBodyStatements.get(i));
}
}
}
}
private static <T> void processOverridden(
CtClass<?> mergeInto, CtClass<?> toMerge, final CtMethod<T> methodToMerge) {
List<CtInvocation<T>> superInvocations =
mergeInto.getElements(
new Filter<CtInvocation<T>>() {
@Override
public boolean matches(CtInvocation<T> invocation) {
if (!(invocation.getTarget() instanceof CtSuperAccess)) return false;
CtExecutable<?> m = invocation.getExecutable().getDeclaration();
return m != null && MethodNode.overrides((CtMethod<?>) m, methodToMerge);
}
});
methodToMerge.setSimpleName(classPrefixedName(toMerge, methodToMerge));
methodToMerge.setVisibility(PRIVATE);
removeAnnotation(methodToMerge, Override.class);
for (CtInvocation<T> superInvocation : superInvocations) {
superInvocation.setTarget(null);
superInvocation.setExecutable(methodToMerge.getReference());
}
add(mergeInto, methodToMerge, mergeInto::addMethod);
}