Phan\AST\UnionTypeVisitor::visitProp PHP Метод

    public function visitProp(Node $node) : UnionType
    {
        try {
            $property = (new ContextNode($this->code_base, $this->context, $node))->getProperty($node->children['prop']);
            // Map template types to concrete types
            if ($property->getUnionType()->hasTemplateType()) {
                // Get the type of the object calling the property
                $expression_type = UnionType::fromNode($this->context, $this->code_base, $node->children['expr']);
                $union_type = $property->getUnionType()->withTemplateParameterTypeMap($expression_type->getTemplateParameterTypeMap($this->code_base));
                return $union_type;
            }
            return $property->getUnionType();
        } catch (IssueException $exception) {
            Issue::maybeEmitInstance($this->code_base, $this->context, $exception->getIssueInstance());
        } catch (CodeBaseException $exception) {
            $property_name = $node->children['prop'];
            $this->emitIssue(Issue::UndeclaredProperty, $node->lineno ?? 0, "{$exception->getFQSEN()}->{$property_name}");
        } catch (UnanalyzableException $exception) {
            // Swallow it. There are some constructs that we
            // just can't figure out.
        } catch (NodeException $exception) {
            // Swallow it. There are some constructs that we
            // just can't figure out.
        }
        return new UnionType();
    }