/** Is symbol inherited in given class? */
@VisibleForTesting
static boolean isInheritedIn(JavaSymbol symbol, JavaSymbol.TypeJavaSymbol clazz) {
switch (symbol.flags() & Flags.ACCESS_FLAGS) {
case Flags.PUBLIC:
return true;
case Flags.PRIVATE:
return symbol.owner() == clazz;
case Flags.PROTECTED:
// TODO see Javac
return true;
case 0:
// TODO see Javac
JavaSymbol.PackageJavaSymbol thisPackage = symbol.packge();
for (JavaSymbol.TypeJavaSymbol sup = clazz;
sup != null && sup != symbol.owner();
sup = superclassSymbol(sup)) {
if (sup.packge() != thisPackage) {
return false;
}
}
return true;
default:
throw new IllegalStateException();
}
}
/** Is class accessible in given environment? */
@VisibleForTesting
static boolean isAccessible(Env env, JavaSymbol.TypeJavaSymbol c) {
final boolean result;
switch (c.flags() & Flags.ACCESS_FLAGS) {
case Flags.PRIVATE:
result = sameOutermostClass(env.enclosingClass, c.owner());
break;
case 0:
result = env.packge == c.packge();
break;
case Flags.PUBLIC:
result = true;
break;
case Flags.PROTECTED:
result = env.packge == c.packge() || isInnerSubClass(env.enclosingClass, c.owner());
break;
default:
throw new IllegalStateException();
}
// TODO check accessibility of enclosing type: isAccessible(env, c.type.getEnclosingType())
return result;
}
