Digia\GraphQL\Language\ASTBuilder\TypeSystemDefinitionASTBuilder

Complexity

Total Complexity

13

Size/Duplication

Total Lines	43
Duplicated Lines	0 %

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
C	build()	0	29	12
A	supportsBuilder()	0	3	1

<?php

namespace Digia\GraphQL\Language\ASTBuilder;

use Digia\GraphQL\Language\KeywordEnum;
use Digia\GraphQL\Language\LexerInterface;
use Digia\GraphQL\Language\TokenKindEnum;

class TypeSystemDefinitionASTBuilder extends AbstractASTBuilder
{
    /**
     * @param LexerInterface $lexer
     * @return bool
     */
    public function supportsBuilder(string $kind): bool
    {
        return $kind === ASTKindEnum::TYPE_SYSTEM_DEFINITION;
    }

    /**
     * @inheritdoc
     */
    public function build(LexerInterface $lexer, array $params): ?array
    {
        // Many definitions begin with a description and require a lookahead.
        $keywordToken = $this->peekDescription($lexer) ? $lexer->lookahead() : $lexer->getToken();

        if ($keywordToken->getKind() === TokenKindEnum::NAME) {
            switch ($keywordToken->getValue()) {
                case KeywordEnum::SCHEMA:
                    return $this->buildAST(ASTKindEnum::SCHEMA_DEFINITION, $lexer);
                case KeywordEnum::SCALAR:
                    return $this->buildAST(ASTKindEnum::SCALAR_TYPE_DEFINITION, $lexer);
                case KeywordEnum::TYPE:
                    return $this->buildAST(ASTKindEnum::OBJECT_TYPE_DEFINITION, $lexer);
                case KeywordEnum::INTERFACE:
                    return $this->buildAST(ASTKindEnum::INTERFACE_TYPE_DEFINITION, $lexer);
                case KeywordEnum::UNION:
                    return $this->buildAST(ASTKindEnum::UNION_TYPE_DEFINITION, $lexer);
                case KeywordEnum::ENUM:
                    return $this->buildAST(ASTKindEnum::ENUM_TYPE_DEFINITION, $lexer);
                case KeywordEnum::INPUT:
                    return $this->buildAST(ASTKindEnum::INPUT_OBJECT_TYPE_DEFINITION, $lexer);
                case KeywordEnum::EXTEND:
                    return $this->buildAST(ASTKindEnum::TYPE_SYSTEM_EXTENSION, $lexer);
                case KeywordEnum::DIRECTIVE:
                    return $this->buildAST(ASTKindEnum::DIRECTIVE_DEFINITION, $lexer);
            }
        }

        throw $this->unexpected($lexer, $keywordToken);
    }
}