Phan\Analysis\PreOrderAnalysisVisitor::visitMethod PHP Method

    public function visitMethod(Decl $node) : Context
    {
        $method_name = (string) $node->name;
        assert($this->context->isInClassScope(), "Must be in class context to see a method");
        $clazz = $this->getContextClass();
        if (!$clazz->hasMethodWithName($this->code_base, $method_name)) {
            throw new CodeBaseException(null, "Can't find method {$clazz->getFQSEN()}::{$method_name}() - aborting");
        }
        $method = $clazz->getMethodByNameInContext($this->code_base, $method_name, $this->context);
        // Parse the comment above the method to get
        // extra meta information about the method.
        $comment = Comment::fromStringInContext($node->docComment ?? '', $this->context);
        $context = $this->context->withScope($method->getInternalScope());
        // For any @var references in the method declaration,
        // add them as variables to the method's scope
        foreach ($comment->getVariableList() as $parameter) {
            $context->addScopeVariable($parameter->asVariable($this->context));
        }
        // Add $this to the scope of non-static methods
        if (!($node->flags & \ast\flags\MODIFIER_STATIC)) {
            assert($clazz->getInternalScope()->hasVariableWithName('this'), "Classes must have a \$this variable.");
            $context->addScopeVariable($clazz->getInternalScope()->getVariableByName('this'));
        }
        // Add each method parameter to the scope. We clone it
        // so that changes to the variable don't alter the
        // parameter definition
        foreach ($method->getParameterList() as $parameter) {
            $context->addScopeVariable(clone $parameter);
        }
        if ($this->analyzeFunctionLikeIsGenerator($node)) {
            $this->setReturnTypeOfGenerator($method, $node);
        }
        return $context;
    }