/**
* Get a method's signature for dead code elimination purposes.
*
* <p>Since DeadCodeEliminator runs before InnerClassExtractor, inner class constructors do not
* yet have the parameter for capturing outer class, and therefore we need this special case.
*/
public static String getProGuardSignature(IMethodBinding binding) {
StringBuilder sb = new StringBuilder("(");
// If the method is an inner class constructor, prepend the outer class type.
if (binding.isConstructor()) {
ITypeBinding declClass = binding.getDeclaringClass();
ITypeBinding outerClass = declClass.getDeclaringClass();
if (outerClass != null
&& !declClass.isInterface()
&& !declClass.isAnnotation()
&& !Modifier.isStatic(declClass.getModifiers())) {
appendParameterSignature(outerClass.getErasure(), sb);
}
}
appendParametersSignature(binding, sb);
sb.append(')');
appendReturnTypeSignature(binding, sb);
return sb.toString();
}
private static void appendParametersSignature(IMethodBinding binding, StringBuilder sb) {
for (ITypeBinding parameter : binding.getParameterTypes()) {
appendParameterSignature(parameter.getErasure(), sb);
}
}
private static void appendReturnTypeSignature(IMethodBinding binding, StringBuilder sb) {
if (binding.getReturnType() != null) {
appendParameterSignature(binding.getReturnType().getErasure(), sb);
}
}