Digia\GraphQL\Language\ASTBuilder\ExecutableDefinitionASTBuilder

Complexity

Total Complexity

8

Size/Duplication

Total Lines	32
Duplicated Lines	0 %

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	supportsBuilder()	0	3	1
B	build()	0	18	7

<?php

namespace Digia\GraphQL\Language\ASTBuilder;

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

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

    /**
     * @inheritdoc
     */
    public function build(LexerInterface $lexer, array $params): ?array
    {
        if ($this->peek($lexer, TokenKindEnum::NAME)) {
            // valid names are: query, mutation, subscription and fragment
            switch ($lexer->getToken()->getValue()) {
                case KeywordEnum::QUERY:
                case KeywordEnum::MUTATION:
                case KeywordEnum::SUBSCRIPTION:
                    return $this->buildAST(ASTKindEnum::OPERATION_DEFINITION, $lexer);
                case KeywordEnum::FRAGMENT:
                    return $this->buildAST(ASTKindEnum::FRAGMENT_DEFINITION, $lexer);
            }
        } elseif ($this->peek($lexer, TokenKindEnum::BRACE_L)) {
            // Anonymous query
            return $this->buildAST(ASTKindEnum::OPERATION_DEFINITION, $lexer);
        }

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