private function getRealCalledMethod(CompilationContext $compilationContext, Variable $caller, $methodName)
    {
        $compiler = $compilationContext->compiler;

        $numberPoly = 0;
        $method = null;

        if ('this' == $caller->getRealName()) {
            $classDefinition = $compilationContext->classDefinition;
            if ($classDefinition->hasMethod($methodName)) {
                ++$numberPoly;
                $method = $classDefinition->getMethod($methodName);
            }
        } else {
            $classTypes = $caller->getClassTypes();
            foreach ($classTypes as $classType) {
                if ($compiler->isInterface($classType)) {
                    continue;
                }

                if ($compiler->isClass($classType) ||
                    $compiler->isBundledClass($classType) ||
                    $compiler->isBundledInterface($classType)
                ) {
                    if ($compiler->isClass($classType)) {
                        $classDefinition = $compiler->getClassDefinition($classType);
                    } else {
                        $classDefinition = $compiler->getInternalClassDefinition($classType);
                    }

                    if (!$classDefinition) {
                        continue;
                    }

                    if ($classDefinition->hasMethod($methodName) && !$classDefinition->isInterface()) {
                        ++$numberPoly;
                        $method = $classDefinition->getMethod($methodName);
                    }
                }
            }
        }

        return [$numberPoly, $method];
    }