src/Language/Visitor.php
public static function visitWithTypeInfo(TypeInfo $typeInfo, $visitor)
    {
        return [
            'enter' => static function (Node $node) use ($typeInfo, $visitor) {
                $typeInfo->enter($node);
                $fn = self::getVisitFn($visitor, $node->kind, false);

                if ($fn) {
                    $result = call_user_func_array($fn, func_get_args());
                    if ($result !== null) {
                        $typeInfo->leave($node);
                        if ($result instanceof Node) {
                            $typeInfo->enter($result);
                        }
                    }

                    return $result;
                }

                return null;
            },
            'leave' => static function (Node $node) use ($typeInfo, $visitor) {
                $fn     = self::getVisitFn($visitor, $node->kind, true);
                $result = $fn ? call_user_func_array($fn, func_get_args()) : null;
                $typeInfo->leave($node);

                return $result;
            },
        ];
    }
public static function visitWithTypeInfo(TypeInfo $typeInfo, $visitor)
    {
        return [
            'enter' => static function (Node $node) use ($typeInfo, $visitor) {
                $typeInfo->enter($node);
                $fn = self::getVisitFn($visitor, $node->kind, false);

                if ($fn) {
                    $result = call_user_func_array($fn, func_get_args());
                    if ($result !== null) {
                        $typeInfo->leave($node);
                        if ($result instanceof Node) {
                            $typeInfo->enter($result);
                        }
                    }

                    return $result;
                }

                return null;
            },
            'leave' => static function (Node $node) use ($typeInfo, $visitor) {
                $fn     = self::getVisitFn($visitor, $node->kind, true);
                $result = $fn ? call_user_func_array($fn, func_get_args()) : null;
                $typeInfo->leave($node);

                return $result;
            },
        ];
    }
public static function visitWithTypeInfo ( TypeInfo $ typeInfo , $ visitor ) { return [ 'enter' => static function ( Node $ node ) use ( $ typeInfo , $ visitor ) { $ typeInfo -> enter ( $ node ) ; $ fn = self :: getVisitFn ( $ visitor , $ node -> kind , false ) ; if ( $ fn ) { $ result = call_user_func_array ( $ fn , func_get_args ( ) ) ; if ( $ result !== null ) { $ typeInfo -> leave ( $ node ) ; if ( $ result instanceof Node ) { $ typeInfo -> enter ( $ result ) ; } } return $ result ; } return null ; } , 'leave' => static function ( Node $ node ) use ( $ typeInfo , $ visitor ) { $ fn = self :: getVisitFn ( $ visitor , $ node -> kind , true ) ; $ result = $ fn ? call_user_func_array ( $ fn , func_get_args ( ) ) : null ; $ typeInfo -> leave ( $ node ) ; return $ result ; } , ] ; }
Creates a new visitor instance which maintains a provided TypeInfo instance
along with visiting visitor.
Creates a new visitor instance which maintains a provided TypeInfo instance along with visiting visitor .