DocumentASTBuilder::parseExecutableDefinition() - Code Metrics - Inspection of "Execution list tests (#144)" - digiaonline/graphql-php - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( c47e08...96e565 )

by Quang

created 2018-03-21 11:10 UTC

DocumentASTBuilder::parseExecutableDefinition() B

↳ Parent: DocumentASTBuilder

Complexity

Conditions	7
Paths	7

Size

Total Lines	18
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	18
rs	8.2222
c	0
b	0
f	0
cc	7
eloc	11
nc	7
nop	1

<?php

namespace Digia\GraphQL\Language\ASTBuilder;

use Digia\GraphQL\Error\SyntaxErrorException;
use Digia\GraphQL\Language\KeywordEnum;
use Digia\GraphQL\Language\LexerInterface;
use Digia\GraphQL\Language\Node\NodeKindEnum;
use Digia\GraphQL\Language\TokenKindEnum;

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

    /**
     * @inheritdoc
     * @throws SyntaxErrorException
     */
    public function build(LexerInterface $lexer, array $params): ?array
    {
        $start = $lexer->getToken();

        $this->expect($lexer, TokenKindEnum::SOF);

        $definitions = [];

        do {
            $definitions[] = $this->parseDefinition($lexer);
        } while (!$this->skip($lexer, TokenKindEnum::EOF));

        return [
            'kind'        => NodeKindEnum::DOCUMENT,
            'definitions' => $definitions,
            'loc'         => $this->buildLocation($lexer, $start),
        ];
    }

    /**
     * @param LexerInterface $lexer
     * @return array
     * @throws SyntaxErrorException
     * @throws \ReflectionException
     */
    protected function parseDefinition(LexerInterface $lexer): array
    {
        if ($this->peek($lexer, TokenKindEnum::NAME)) {
            switch ($lexer->getTokenValue()) {
                case KeywordEnum::QUERY:
                case KeywordEnum::MUTATION:
                case KeywordEnum::SUBSCRIPTION:
                case KeywordEnum::FRAGMENT:
                    return $this->parseExecutableDefinition($lexer);
                case KeywordEnum::SCHEMA:
                case KeywordEnum::SCALAR:
                case KeywordEnum::TYPE:
                case KeywordEnum::INTERFACE:
                case KeywordEnum::UNION:
                case KeywordEnum::ENUM:
                case KeywordEnum::INPUT:
                case KeywordEnum::EXTEND:
                case KeywordEnum::DIRECTIVE:
                    // Note: The schema definition language is an experimental addition.
                    return $this->parseTypeSystemDefinition($lexer);
            }
        } elseif ($this->peek($lexer, TokenKindEnum::BRACE_L)) {
            return $this->parseExecutableDefinition($lexer);
        } elseif ($this->peekDescription($lexer)) {
            // Note: The schema definition language is an experimental addition.
            return $this->parseTypeSystemDefinition($lexer);
        }

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

    /**
     * @param LexerInterface $lexer
     * @return array
     * @throws SyntaxErrorException
     */
    protected function parseExecutableDefinition(LexerInterface $lexer): array
    {
        if ($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);
    }

    /**
     * @param LexerInterface $lexer
     * @return array
     * @throws SyntaxErrorException
     */
    protected function parseTypeSystemDefinition(LexerInterface $lexer): 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::DIRECTIVE:
                    return $this->buildAST(ASTKindEnum::DIRECTIVE_DEFINITION, $lexer);

                case KeywordEnum::EXTEND:
                    return $this->parseTypeSystemExtension($lexer);
            }
        }

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

    /**
     * @param LexerInterface $lexer
     * @return array
     * @throws SyntaxErrorException
     */
    protected function parseTypeSystemExtension(LexerInterface $lexer): array
    {
        $keywordToken = $lexer->lookahead();

        if ($keywordToken->getKind() === TokenKindEnum::NAME) {
            switch ($keywordToken->getValue()) {
                case KeywordEnum::SCALAR:
                    return $this->buildAST(ASTKindEnum::SCALAR_TYPE_EXTENSION, $lexer);

                case KeywordEnum::TYPE:
                    return $this->buildAST(ASTKindEnum::OBJECT_TYPE_EXTENSION, $lexer);

                case KeywordEnum::INTERFACE:
                    return $this->buildAST(ASTKindEnum::INTERFACE_TYPE_EXTENSION, $lexer);

                case KeywordEnum::UNION:
                    return $this->buildAST(ASTKindEnum::UNION_TYPE_EXTENSION, $lexer);

                case KeywordEnum::ENUM:
                    return $this->buildAST(ASTKindEnum::ENUM_TYPE_EXTENSION, $lexer);

                case KeywordEnum::INPUT:
                    return $this->buildAST(ASTKindEnum::INPUT_OBJECT_TYPE_EXTENSION, $lexer);

            }
        }

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


1			<?php
2
3			namespace Digia\GraphQL\Language\ASTBuilder;
4
5			use Digia\GraphQL\Error\SyntaxErrorException;
6			use Digia\GraphQL\Language\KeywordEnum;
7			use Digia\GraphQL\Language\LexerInterface;
8			use Digia\GraphQL\Language\Node\NodeKindEnum;
9			use Digia\GraphQL\Language\TokenKindEnum;
10
11			class DocumentASTBuilder extends AbstractASTBuilder
12			{
13			/**
14			* @param LexerInterface $lexer
15			* @return bool
16			*/
17			public function supportsBuilder(string $kind): bool
18			{
19			return $kind === ASTKindEnum::DOCUMENT;
20			}
21
22			/**
23			* @inheritdoc
24			* @throws SyntaxErrorException
25			*/
26			public function build(LexerInterface $lexer, array $params): ?array
27			{
28			$start = $lexer->getToken();
29
30			$this->expect($lexer, TokenKindEnum::SOF);
31
32			$definitions = [];
33
34			do {
35			$definitions[] = $this->parseDefinition($lexer);
36			} while (!$this->skip($lexer, TokenKindEnum::EOF));
37
38			return [
39			'kind' => NodeKindEnum::DOCUMENT,
40			'definitions' => $definitions,
41			'loc' => $this->buildLocation($lexer, $start),
42			];
43			}
44
45			/**
46			* @param LexerInterface $lexer
47			* @return array
48			* @throws SyntaxErrorException
49			* @throws \ReflectionException
50			*/
51			protected function parseDefinition(LexerInterface $lexer): array
52			{
53			if ($this->peek($lexer, TokenKindEnum::NAME)) {
54			switch ($lexer->getTokenValue()) {
55			case KeywordEnum::QUERY:
56			case KeywordEnum::MUTATION:
57			case KeywordEnum::SUBSCRIPTION:
58			case KeywordEnum::FRAGMENT:
59			return $this->parseExecutableDefinition($lexer);
60			case KeywordEnum::SCHEMA:
61			case KeywordEnum::SCALAR:
62			case KeywordEnum::TYPE:
63			case KeywordEnum::INTERFACE:
64			case KeywordEnum::UNION:
65			case KeywordEnum::ENUM:
66			case KeywordEnum::INPUT:
67			case KeywordEnum::EXTEND:
68			case KeywordEnum::DIRECTIVE:
69			// Note: The schema definition language is an experimental addition.
70			return $this->parseTypeSystemDefinition($lexer);
71			}
72			} elseif ($this->peek($lexer, TokenKindEnum::BRACE_L)) {
73			return $this->parseExecutableDefinition($lexer);
74			} elseif ($this->peekDescription($lexer)) {
75			// Note: The schema definition language is an experimental addition.
76			return $this->parseTypeSystemDefinition($lexer);
77			}
78
79			throw $this->unexpected($lexer);
80			}
81
82			/**
83			* @param LexerInterface $lexer
84			* @return array
85			* @throws SyntaxErrorException
86			*/
87			protected function parseExecutableDefinition(LexerInterface $lexer): array
88			{
89			if ($this->peek($lexer, TokenKindEnum::NAME)) {
90			// valid names are: query, mutation, subscription and fragment
91			switch ($lexer->getToken()->getValue()) {
92			case KeywordEnum::QUERY:
93			case KeywordEnum::MUTATION:
94			case KeywordEnum::SUBSCRIPTION:
95			return $this->buildAST(ASTKindEnum::OPERATION_DEFINITION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...ION_DEFINITION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
96			case KeywordEnum::FRAGMENT:
97			return $this->buildAST(ASTKindEnum::FRAGMENT_DEFINITION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...ENT_DEFINITION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
98			}
99			} elseif ($this->peek($lexer, TokenKindEnum::BRACE_L)) {
100			// Anonymous query
101			return $this->buildAST(ASTKindEnum::OPERATION_DEFINITION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...ION_DEFINITION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
102			}
103
104			throw $this->unexpected($lexer);
105			}
106
107			/**
108			* @param LexerInterface $lexer
109			* @return array
110			* @throws SyntaxErrorException
111			*/
112			protected function parseTypeSystemDefinition(LexerInterface $lexer): array
113			{
114			// Many definitions begin with a description and require a lookahead.
115			$keywordToken = $this->peekDescription($lexer) ? $lexer->lookahead() : $lexer->getToken();
116
117			if ($keywordToken->getKind() === TokenKindEnum::NAME) {
118			switch ($keywordToken->getValue()) {
119			case KeywordEnum::SCHEMA:
120			return $this->buildAST(ASTKindEnum::SCHEMA_DEFINITION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...EMA_DEFINITION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
121			case KeywordEnum::SCALAR:
122			return $this->buildAST(ASTKindEnum::SCALAR_TYPE_DEFINITION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...YPE_DEFINITION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
123			case KeywordEnum::TYPE:
124			return $this->buildAST(ASTKindEnum::OBJECT_TYPE_DEFINITION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...YPE_DEFINITION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
125			case KeywordEnum::INTERFACE:
126			return $this->buildAST(ASTKindEnum::INTERFACE_TYPE_DEFINITION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...YPE_DEFINITION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
127			case KeywordEnum::UNION:
128			return $this->buildAST(ASTKindEnum::UNION_TYPE_DEFINITION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...YPE_DEFINITION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
129			case KeywordEnum::ENUM:
130			return $this->buildAST(ASTKindEnum::ENUM_TYPE_DEFINITION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...YPE_DEFINITION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
131			case KeywordEnum::INPUT:
132			return $this->buildAST(ASTKindEnum::INPUT_OBJECT_TYPE_DEFINITION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...YPE_DEFINITION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
133			case KeywordEnum::DIRECTIVE:
134			return $this->buildAST(ASTKindEnum::DIRECTIVE_DEFINITION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...IVE_DEFINITION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
135			case KeywordEnum::EXTEND:
136			return $this->parseTypeSystemExtension($lexer);
137			}
138			}
139
140			throw $this->unexpected($lexer, $keywordToken);
141			}
142
143			/**
144			* @param LexerInterface $lexer
145			* @return array
146			* @throws SyntaxErrorException
147			*/
148			protected function parseTypeSystemExtension(LexerInterface $lexer): array
149			{
150			$keywordToken = $lexer->lookahead();
151
152			if ($keywordToken->getKind() === TokenKindEnum::NAME) {
153			switch ($keywordToken->getValue()) {
154			case KeywordEnum::SCALAR:
155			return $this->buildAST(ASTKindEnum::SCALAR_TYPE_EXTENSION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...TYPE_EXTENSION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
156			case KeywordEnum::TYPE:
157			return $this->buildAST(ASTKindEnum::OBJECT_TYPE_EXTENSION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...TYPE_EXTENSION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
158			case KeywordEnum::INTERFACE:
159			return $this->buildAST(ASTKindEnum::INTERFACE_TYPE_EXTENSION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...TYPE_EXTENSION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
160			case KeywordEnum::UNION:
161			return $this->buildAST(ASTKindEnum::UNION_TYPE_EXTENSION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...TYPE_EXTENSION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
162			case KeywordEnum::ENUM:
163			return $this->buildAST(ASTKindEnum::ENUM_TYPE_EXTENSION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...TYPE_EXTENSION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
164			case KeywordEnum::INPUT:
165			return $this->buildAST(ASTKindEnum::INPUT_OBJECT_TYPE_EXTENSION, $lexer);
			0 ignored issues – show Bug Best Practice introduced 2018-03-21 08:13 UTC by Report Bug Copy Issue Report The expression `return $this->buildAST(D...TYPE_EXTENSION, $lexer)` could return the type `null` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
166			}
167			}
168
169			throw $this->unexpected($lexer, $keywordToken);
170			}
171			}
172

digiaonline / graphql-php

Push — master ( c47e08...96e565 )

DocumentASTBuilder::parseExecutableDefinition() B

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