digiaonline /
graphql-php
| Total Complexity | 172 |
| Total Lines | 1544 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Parser often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Parser, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 57 | class Parser implements ParserInterface |
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| 58 | { |
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| 59 | /** |
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| 60 | * @inheritdoc |
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| 61 | * @return NodeInterface |
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| 62 | * @throws SyntaxErrorException |
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| 63 | * @throws \ReflectionException |
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| 64 | * @throws InvariantException |
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| 65 | */ |
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| 66 | public function parse($source, array $options = []): NodeInterface |
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| 67 | { |
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| 68 | return $this->parseDocument($this->createLexer($source, $options)); |
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| 69 | } |
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| 70 | |||
| 71 | /** |
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| 72 | * @inheritdoc |
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| 73 | * @return NodeInterface |
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| 74 | * @throws SyntaxErrorException |
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| 75 | * @throws InvariantException |
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| 76 | */ |
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| 77 | public function parseValue($source, array $options = []): NodeInterface |
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| 78 | { |
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| 79 | $lexer = $this->createLexer($source, $options); |
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| 80 | |||
| 81 | $this->expect($lexer, TokenKindEnum::SOF); |
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| 82 | $value = $this->parseValueLiteral($lexer); |
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| 83 | $this->expect($lexer, TokenKindEnum::EOF); |
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| 84 | |||
| 85 | return $value; |
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| 86 | } |
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| 87 | |||
| 88 | /** |
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| 89 | * @inheritdoc |
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| 90 | * @return NodeInterface |
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| 91 | * @throws SyntaxErrorException |
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| 92 | * @throws InvariantException |
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| 93 | */ |
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| 94 | public function parseType($source, array $options = []): NodeInterface |
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| 95 | { |
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| 96 | $lexer = $this->createLexer($source, $options); |
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| 97 | |||
| 98 | $this->expect($lexer, TokenKindEnum::SOF); |
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| 99 | $type = $this->parseTypeReference($lexer); |
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| 100 | $this->expect($lexer, TokenKindEnum::EOF); |
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| 101 | |||
| 102 | return $type; |
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| 103 | } |
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| 104 | |||
| 105 | /** |
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| 106 | * @param LexerInterface $lexer |
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| 107 | * @return DocumentNode |
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| 108 | * @throws SyntaxErrorException |
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| 109 | * @throws \ReflectionException |
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| 110 | */ |
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| 111 | public function parseDocument(LexerInterface $lexer): DocumentNode |
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| 112 | { |
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| 113 | $start = $lexer->getToken(); |
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| 114 | |||
| 115 | $this->expect($lexer, TokenKindEnum::SOF); |
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| 116 | |||
| 117 | $definitions = []; |
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| 118 | |||
| 119 | do { |
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| 120 | $definitions[] = $this->parseDefinition($lexer); |
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| 121 | } while (!$this->skip($lexer, TokenKindEnum::EOF)); |
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| 122 | |||
| 123 | return new DocumentNode([ |
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| 124 | 'definitions' => $definitions, |
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| 125 | 'location' => $this->createLocation($lexer, $start), |
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| 126 | ]); |
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| 127 | } |
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| 128 | |||
| 129 | /** |
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| 130 | * @param LexerInterface $lexer |
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| 131 | * @return OperationDefinitionNode |
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| 132 | * @throws SyntaxErrorException |
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| 133 | */ |
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| 134 | protected function parseOperationDefinition(LexerInterface $lexer): OperationDefinitionNode |
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| 135 | { |
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| 136 | $start = $lexer->getToken(); |
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| 137 | |||
| 138 | if ($this->peek($lexer, TokenKindEnum::BRACE_L)) { |
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| 139 | // Anonymous operation |
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| 140 | return new OperationDefinitionNode([ |
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| 141 | 'operation' => 'query', |
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| 142 | 'selectionSet' => $this->parseSelectionSet($lexer), |
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| 143 | 'location' => $this->createLocation($lexer, $start), |
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| 144 | ]); |
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| 145 | } |
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| 146 | |||
| 147 | $operation = $this->parseOperationType($lexer); |
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| 148 | |||
| 149 | if ($this->peek($lexer, TokenKindEnum::NAME)) { |
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| 150 | $name = $this->parseName($lexer); |
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| 151 | } |
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| 152 | |||
| 153 | return new OperationDefinitionNode([ |
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| 154 | 'operation' => $operation, |
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| 155 | 'name' => $name ?? null, |
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| 156 | 'variableDefinitions' => $this->parseVariableDefinitions($lexer), |
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| 157 | 'directives' => $this->parseDirectives($lexer), |
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| 158 | 'selectionSet' => $this->parseSelectionSet($lexer), |
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| 159 | 'location' => $this->createLocation($lexer, $start), |
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| 160 | ]); |
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| 161 | } |
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| 162 | |||
| 163 | /** |
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| 164 | * @param LexerInterface $lexer |
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| 165 | * @param bool $isConst |
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| 166 | * @return array |
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| 167 | * @throws SyntaxErrorException |
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| 168 | */ |
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| 169 | protected function parseArguments(LexerInterface $lexer, bool $isConst = false): ?array |
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| 170 | { |
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| 171 | $parseFunction = function (LexerInterface $lexer) use ($isConst): ArgumentNode { |
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| 172 | return $this->parseArgument($lexer, $isConst); |
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| 173 | }; |
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| 174 | |||
| 175 | return $this->peek($lexer, TokenKindEnum::PAREN_L) |
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| 176 | ? $this->many( |
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| 177 | $lexer, |
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| 178 | TokenKindEnum::PAREN_L, |
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| 179 | $parseFunction, |
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| 180 | TokenKindEnum::PAREN_R |
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| 181 | ) |
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| 182 | : []; |
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| 183 | } |
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| 184 | |||
| 185 | /** |
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| 186 | * @param LexerInterface $lexer |
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| 187 | * @param bool $isConst |
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| 188 | * @return ArgumentNode |
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| 189 | * @throws SyntaxErrorException |
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| 190 | */ |
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| 191 | protected function parseArgument(LexerInterface $lexer, bool $isConst = false): ArgumentNode |
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| 192 | { |
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| 193 | $start = $lexer->getToken(); |
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| 194 | |||
| 195 | /** |
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| 196 | * @param LexerInterface $lexer |
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| 197 | * @return NodeInterface|TypeNodeInterface|ValueNodeInterface |
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| 198 | */ |
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| 199 | $parseValue = function (LexerInterface $lexer) use ($isConst): NodeInterface { |
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| 200 | $this->expect($lexer, TokenKindEnum::COLON); |
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| 201 | return $this->parseValueLiteral($lexer, $isConst); |
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| 202 | }; |
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| 203 | |||
| 204 | return new ArgumentNode([ |
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| 205 | 'name' => $this->parseName($lexer), |
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| 206 | 'value' => $parseValue($lexer), |
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| 207 | 'location' => $this->createLocation($lexer, $start), |
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| 208 | ]); |
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| 209 | } |
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| 210 | |||
| 211 | /** |
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| 212 | * @param LexerInterface $lexer |
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| 213 | * @return array |
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| 214 | * @throws SyntaxErrorException |
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| 215 | */ |
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| 216 | protected function parseArgumentsDefinition(LexerInterface $lexer): array |
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| 217 | { |
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| 218 | $parseFunction = function (LexerInterface $lexer): InputValueDefinitionNode { |
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| 219 | return $this->parseInputValueDefinition($lexer); |
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| 220 | }; |
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| 221 | |||
| 222 | return $this->peek($lexer, TokenKindEnum::PAREN_L) |
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| 223 | ? $this->many( |
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| 224 | $lexer, |
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| 225 | TokenKindEnum::PAREN_L, |
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| 226 | $parseFunction, |
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| 227 | TokenKindEnum::PAREN_R |
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| 228 | ) |
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| 229 | : []; |
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| 230 | } |
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| 231 | |||
| 232 | /** |
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| 233 | * @param LexerInterface $lexer |
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| 234 | * @return NodeInterface|null |
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| 235 | */ |
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| 236 | public function parseDescription(LexerInterface $lexer): ?NodeInterface |
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| 237 | { |
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| 238 | return $this->peekDescription($lexer) |
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| 239 | ? $this->parseStringLiteral($lexer) |
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| 240 | : null; |
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| 241 | } |
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| 242 | |||
| 243 | /** |
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| 244 | * @param LexerInterface $lexer |
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| 245 | * @return DirectiveDefinitionNode |
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| 246 | * @throws SyntaxErrorException |
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| 247 | * @throws \ReflectionException |
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| 248 | */ |
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| 249 | protected function parseDirectiveDefinition(LexerInterface $lexer): DirectiveDefinitionNode |
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| 250 | { |
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| 251 | $start = $lexer->getToken(); |
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| 252 | |||
| 253 | $description = $this->parseDescription($lexer); |
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| 254 | |||
| 255 | $this->expectKeyword($lexer, KeywordEnum::DIRECTIVE); |
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| 256 | $this->expect($lexer, TokenKindEnum::AT); |
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| 257 | |||
| 258 | $name = $this->parseName($lexer); |
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| 259 | $arguments = $this->parseArgumentsDefinition($lexer); |
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| 260 | |||
| 261 | $this->expectKeyword($lexer, KeywordEnum::ON); |
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| 262 | |||
| 263 | $locations = $this->parseDirectiveLocations($lexer); |
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| 264 | |||
| 265 | return new DirectiveDefinitionNode([ |
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| 266 | 'description' => $description, |
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| 267 | 'name' => $name, |
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| 268 | 'arguments' => $arguments, |
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| 269 | 'locations' => $locations, |
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| 270 | 'location' => $this->createLocation($lexer, $start), |
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| 271 | ]); |
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| 272 | } |
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| 273 | |||
| 274 | /** |
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| 275 | * @param LexerInterface $lexer |
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| 276 | * @return array |
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| 277 | * @throws SyntaxErrorException |
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| 278 | * @throws \ReflectionException |
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| 279 | */ |
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| 280 | protected function parseDirectiveLocations(LexerInterface $lexer): array |
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| 281 | { |
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| 282 | $this->skip($lexer, TokenKindEnum::PIPE); |
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| 283 | |||
| 284 | $locations = []; |
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| 285 | |||
| 286 | do { |
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| 287 | $locations[] = $this->parseDirectiveLocation($lexer); |
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| 288 | } while ($this->skip($lexer, TokenKindEnum::PIPE)); |
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| 289 | |||
| 290 | return $locations; |
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| 291 | } |
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| 292 | |||
| 293 | /** |
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| 294 | * @param LexerInterface $lexer |
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| 295 | * @return NameNode |
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| 296 | * @throws SyntaxErrorException |
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| 297 | * @throws \ReflectionException |
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| 298 | */ |
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| 299 | protected function parseDirectiveLocation(LexerInterface $lexer): NameNode |
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| 300 | { |
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| 301 | $start = $lexer->getToken(); |
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| 302 | |||
| 303 | $name = $this->parseName($lexer); |
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| 304 | |||
| 305 | if (arraySome(DirectiveLocationEnum::values(), function ($value) use ($name) { |
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| 306 | return $name->getValue() === $value; |
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| 307 | })) { |
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| 308 | return $name; |
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| 309 | } |
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| 310 | |||
| 311 | throw $this->unexpected($lexer, $start); |
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| 312 | } |
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| 313 | |||
| 314 | /** |
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| 315 | * @param LexerInterface $lexer |
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| 316 | * @param bool $isConst |
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| 317 | * @return array |
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| 318 | * @throws SyntaxErrorException |
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| 319 | */ |
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| 320 | protected function parseDirectives(LexerInterface $lexer, bool $isConst = false): array |
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| 329 | } |
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| 330 | |||
| 331 | /** |
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| 332 | * @param LexerInterface $lexer |
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| 333 | * @param bool $isConst |
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| 334 | * @return DirectiveNode |
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| 335 | * @throws SyntaxErrorException |
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| 336 | */ |
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| 337 | protected function parseDirective(LexerInterface $lexer, bool $isConst): DirectiveNode |
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| 338 | { |
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| 339 | $start = $lexer->getToken(); |
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| 340 | |||
| 341 | $this->expect($lexer, TokenKindEnum::AT); |
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| 342 | |||
| 343 | return new DirectiveNode([ |
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| 344 | 'name' => $this->parseName($lexer), |
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| 345 | 'arguments' => $this->parseArguments($lexer, $isConst), |
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| 346 | 'location' => $this->createLocation($lexer, $start), |
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| 347 | ]); |
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| 348 | } |
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| 349 | |||
| 350 | /** |
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| 351 | * @param LexerInterface $lexer |
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| 352 | * @return NodeInterface |
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| 353 | * @throws SyntaxErrorException |
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| 354 | * @throws \ReflectionException |
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| 355 | */ |
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| 356 | protected function parseDefinition(LexerInterface $lexer): NodeInterface |
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| 357 | { |
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| 358 | if ($this->peek($lexer, TokenKindEnum::NAME)) { |
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| 359 | switch ($lexer->getTokenValue()) { |
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| 360 | case KeywordEnum::QUERY: |
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| 361 | case KeywordEnum::MUTATION: |
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| 362 | case KeywordEnum::SUBSCRIPTION: |
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| 363 | case KeywordEnum::FRAGMENT: |
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| 364 | return $this->parseExecutableDefinition($lexer); |
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| 365 | case KeywordEnum::SCHEMA: |
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| 366 | case KeywordEnum::SCALAR: |
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| 367 | case KeywordEnum::TYPE: |
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| 368 | case KeywordEnum::INTERFACE: |
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| 369 | case KeywordEnum::UNION: |
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| 370 | case KeywordEnum::ENUM: |
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| 371 | case KeywordEnum::INPUT: |
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| 372 | case KeywordEnum::EXTEND: |
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| 373 | case KeywordEnum::DIRECTIVE: |
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| 374 | // Note: The schema definition language is an experimental addition. |
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| 375 | return $this->parseTypeSystemDefinition($lexer); |
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| 376 | } |
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| 377 | } elseif ($this->peek($lexer, TokenKindEnum::BRACE_L)) { |
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| 378 | return $this->parseExecutableDefinition($lexer); |
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| 379 | } elseif ($this->peekDescription($lexer)) { |
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| 380 | // Note: The schema definition language is an experimental addition. |
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| 381 | return $this->parseTypeSystemDefinition($lexer); |
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| 382 | } |
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| 383 | |||
| 384 | throw $this->unexpected($lexer); |
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| 385 | } |
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| 386 | |||
| 387 | /** |
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| 388 | * @param LexerInterface $lexer |
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| 389 | * @return NodeInterface |
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| 390 | * @throws SyntaxErrorException |
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| 391 | */ |
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| 392 | protected function parseExecutableDefinition(LexerInterface $lexer): NodeInterface |
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| 393 | { |
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| 394 | if ($this->peek($lexer, TokenKindEnum::NAME)) { |
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| 395 | // valid names are: query, mutation, subscription and fragment |
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| 396 | switch ($lexer->getToken()->getValue()) { |
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| 397 | case KeywordEnum::QUERY: |
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| 398 | case KeywordEnum::MUTATION: |
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| 399 | case KeywordEnum::SUBSCRIPTION: |
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| 400 | return $this->parseOperationDefinition($lexer); |
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| 401 | case KeywordEnum::FRAGMENT: |
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| 402 | return $this->parseFragmentDefinition($lexer); |
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| 403 | } |
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| 404 | } elseif ($this->peek($lexer, TokenKindEnum::BRACE_L)) { |
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| 405 | // Anonymous query |
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| 406 | return $this->parseOperationDefinition($lexer); |
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| 407 | } |
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| 408 | |||
| 409 | throw $this->unexpected($lexer); |
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| 410 | } |
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| 411 | |||
| 412 | /** |
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| 413 | * @param LexerInterface $lexer |
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| 414 | * @return NodeInterface|TypeDefinitionNodeInterface|TypeExtensionNodeInterface |
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| 415 | * @throws SyntaxErrorException |
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| 416 | * @throws \ReflectionException |
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| 417 | */ |
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| 418 | protected function parseTypeSystemDefinition(LexerInterface $lexer): NodeInterface |
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| 419 | { |
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| 420 | // Many definitions begin with a description and require a lookahead. |
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| 421 | $keywordToken = $this->peekDescription($lexer) ? $lexer->lookahead() : $lexer->getToken(); |
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| 422 | |||
| 423 | if ($keywordToken->getKind() === TokenKindEnum::NAME) { |
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| 424 | switch ($keywordToken->getValue()) { |
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| 425 | case KeywordEnum::SCHEMA: |
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| 426 | return $this->parseSchemaDefinition($lexer); |
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| 427 | case KeywordEnum::SCALAR: |
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| 428 | return $this->parseScalarTypeDefinition($lexer); |
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| 429 | case KeywordEnum::TYPE: |
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| 430 | return $this->parseObjectTypeDefinition($lexer); |
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| 431 | case KeywordEnum::INTERFACE: |
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| 432 | return $this->parseInterfaceTypeDefinition($lexer); |
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| 433 | case KeywordEnum::UNION: |
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| 434 | return $this->parseUnionTypeDefinition($lexer); |
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| 435 | case KeywordEnum::ENUM: |
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| 436 | return $this->parseEnumTypeDefinition($lexer); |
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| 437 | case KeywordEnum::INPUT: |
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| 438 | return $this->parseInputObjectTypeDefinition($lexer); |
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| 439 | case KeywordEnum::DIRECTIVE: |
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| 440 | return $this->parseDirectiveDefinition($lexer); |
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| 441 | case KeywordEnum::EXTEND: |
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| 442 | return $this->parseTypeSystemExtension($lexer); |
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| 443 | } |
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| 444 | } |
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| 445 | |||
| 446 | throw $this->unexpected($lexer, $keywordToken); |
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| 447 | } |
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| 448 | |||
| 449 | /** |
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| 450 | * @param LexerInterface $lexer |
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| 451 | * @return TypeExtensionNodeInterface |
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| 452 | * @throws SyntaxErrorException |
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| 453 | */ |
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| 454 | protected function parseTypeSystemExtension(LexerInterface $lexer): TypeExtensionNodeInterface |
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| 455 | { |
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| 456 | $keywordToken = $lexer->lookahead(); |
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| 457 | |||
| 458 | if ($keywordToken->getKind() === TokenKindEnum::NAME) { |
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| 459 | switch ($keywordToken->getValue()) { |
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| 460 | case KeywordEnum::SCALAR: |
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| 461 | return $this->parseScalarTypeExtension($lexer, false); |
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| 462 | case KeywordEnum::TYPE: |
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| 463 | return $this->parseObjectTypeExtension($lexer); |
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| 464 | case KeywordEnum::INTERFACE: |
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| 465 | return $this->parseInterfaceTypeExtension($lexer); |
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| 466 | case KeywordEnum::UNION: |
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| 467 | return $this->parseUnionTypeExtension($lexer); |
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| 468 | case KeywordEnum::ENUM: |
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| 469 | return $this->parseEnumTypeExtension($lexer); |
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| 470 | case KeywordEnum::INPUT: |
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| 471 | return $this->parseInputObjectTypeExtension($lexer); |
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| 472 | } |
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| 473 | } |
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| 474 | |||
| 475 | throw $this->unexpected($lexer, $keywordToken); |
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| 476 | } |
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| 477 | |||
| 478 | /** |
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| 479 | * @param LexerInterface $lexer |
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| 480 | * @return EnumTypeDefinitionNode |
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| 481 | * @throws SyntaxErrorException |
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| 482 | */ |
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| 483 | protected function parseEnumTypeDefinition(LexerInterface $lexer): EnumTypeDefinitionNode |
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| 484 | { |
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| 485 | $start = $lexer->getToken(); |
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| 486 | |||
| 487 | $description = $this->parseDescription($lexer); |
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| 488 | |||
| 489 | $this->expectKeyword($lexer, KeywordEnum::ENUM); |
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| 490 | |||
| 491 | return new EnumTypeDefinitionNode([ |
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| 492 | 'description' => $description, |
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| 493 | 'name' => $this->parseName($lexer), |
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| 494 | 'directives' => $this->parseDirectives($lexer), |
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| 495 | 'values' => $this->parseEnumValuesDefinition($lexer), |
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| 496 | 'location' => $this->createLocation($lexer, $start), |
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| 497 | ]); |
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| 498 | } |
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| 499 | |||
| 500 | /** |
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| 501 | * @param LexerInterface $lexer |
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| 502 | * @return EnumTypeExtensionNode |
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| 503 | * @throws SyntaxErrorException |
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| 504 | */ |
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| 505 | protected function parseEnumTypeExtension(LexerInterface $lexer): EnumTypeExtensionNode |
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| 506 | { |
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| 507 | $start = $lexer->getToken(); |
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| 508 | |||
| 509 | $this->expectKeyword($lexer, KeywordEnum::EXTEND); |
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| 510 | $this->expectKeyword($lexer, KeywordEnum::ENUM); |
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| 511 | |||
| 512 | $name = $this->parseName($lexer); |
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| 513 | $directives = $this->parseDirectives($lexer); |
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| 514 | $values = $this->parseEnumValuesDefinition($lexer); |
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| 515 | |||
| 516 | if (empty($directives) && empty($values)) { |
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| 517 | throw $this->unexpected($lexer); |
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| 518 | } |
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| 519 | |||
| 520 | return new EnumTypeExtensionNode([ |
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| 521 | 'name' => $name, |
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| 522 | 'directives' => $directives, |
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| 523 | 'values' => $values, |
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| 524 | 'location' => $this->createLocation($lexer, $start), |
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| 525 | ]); |
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| 526 | } |
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| 527 | |||
| 528 | /** |
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| 529 | * @param LexerInterface $lexer |
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| 530 | * @return array |
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| 531 | * @throws SyntaxErrorException |
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| 532 | */ |
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| 533 | protected function parseEnumValuesDefinition(LexerInterface $lexer): array |
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| 534 | { |
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| 535 | return $this->peek($lexer, TokenKindEnum::BRACE_L) |
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| 536 | ? $this->many( |
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| 537 | $lexer, |
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| 538 | TokenKindEnum::BRACE_L, |
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| 539 | [$this, 'parseEnumValueDefinition'], |
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| 540 | TokenKindEnum::BRACE_R |
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| 541 | ) |
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| 542 | : []; |
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| 543 | } |
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| 544 | |||
| 545 | /** |
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| 546 | * @param LexerInterface $lexer |
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| 547 | * @return EnumValueDefinitionNode |
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| 548 | * @throws SyntaxErrorException |
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| 549 | */ |
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| 550 | protected function parseEnumValueDefinition(LexerInterface $lexer): EnumValueDefinitionNode |
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| 551 | { |
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| 552 | $start = $lexer->getToken(); |
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| 553 | |||
| 554 | return new EnumValueDefinitionNode([ |
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| 555 | 'description' => $this->parseDescription($lexer), |
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| 556 | 'name' => $this->parseName($lexer), |
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| 557 | 'directives' => $this->parseDirectives($lexer), |
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| 558 | 'location' => $this->createLocation($lexer, $start), |
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| 559 | ]); |
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| 560 | } |
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| 561 | |||
| 562 | /** |
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| 563 | * @param LexerInterface $lexer |
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| 564 | * @return FieldNode |
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| 565 | * @throws SyntaxErrorException |
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| 566 | */ |
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| 567 | protected function parseField(LexerInterface $lexer): FieldNode |
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| 568 | { |
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| 569 | $start = $lexer->getToken(); |
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| 570 | |||
| 571 | $nameOrAlias = $this->parseName($lexer); |
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| 572 | |||
| 573 | if ($this->skip($lexer, TokenKindEnum::COLON)) { |
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| 574 | $alias = $nameOrAlias; |
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| 575 | $name = $this->parseName($lexer); |
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| 576 | } else { |
||
| 577 | $name = $nameOrAlias; |
||
| 578 | } |
||
| 579 | |||
| 580 | return new FieldNode([ |
||
| 581 | 'alias' => $alias ?? null, |
||
| 582 | 'name' => $name, |
||
| 583 | 'arguments' => $this->parseArguments($lexer, false), |
||
| 584 | 'directives' => $this->parseDirectives($lexer), |
||
| 585 | 'selectionSet' => $this->peek($lexer, TokenKindEnum::BRACE_L) |
||
| 586 | ? $this->parseSelectionSet($lexer) |
||
| 587 | : null, |
||
| 588 | 'location' => $this->createLocation($lexer, $start), |
||
| 589 | ]); |
||
| 590 | } |
||
| 591 | |||
| 592 | /** |
||
| 593 | * @param LexerInterface $lexer |
||
| 594 | * @return array |
||
| 595 | * @throws SyntaxErrorException |
||
| 596 | */ |
||
| 597 | protected function parseFieldsDefinition(LexerInterface $lexer): array |
||
| 598 | { |
||
| 599 | return $this->peek($lexer, TokenKindEnum::BRACE_L) |
||
| 600 | ? $this->many( |
||
| 601 | $lexer, |
||
| 602 | TokenKindEnum::BRACE_L, |
||
| 603 | [$this, 'parseFieldDefinition'], |
||
| 604 | TokenKindEnum::BRACE_R |
||
| 605 | ) |
||
| 606 | : []; |
||
| 607 | } |
||
| 608 | |||
| 609 | /** |
||
| 610 | * @param LexerInterface $lexer |
||
| 611 | * @return FieldDefinitionNode |
||
| 612 | * @throws SyntaxErrorException |
||
| 613 | */ |
||
| 614 | protected function parseFieldDefinition(LexerInterface $lexer): FieldDefinitionNode |
||
| 615 | { |
||
| 616 | $start = $lexer->getToken(); |
||
| 617 | |||
| 618 | $description = $this->parseDescription($lexer); |
||
| 619 | $name = $this->parseName($lexer); |
||
| 620 | $arguments = $this->parseArgumentsDefinition($lexer); |
||
| 621 | |||
| 622 | $this->expect($lexer, TokenKindEnum::COLON); |
||
| 623 | |||
| 624 | return new FieldDefinitionNode([ |
||
| 625 | 'description' => $description, |
||
| 626 | 'name' => $name, |
||
| 627 | 'arguments' => $arguments, |
||
| 628 | 'type' => $this->parseTypeReference($lexer), |
||
| 629 | 'directives' => $this->parseDirectives($lexer), |
||
| 630 | 'location' => $this->createLocation($lexer, $start), |
||
| 631 | ]); |
||
| 632 | } |
||
| 633 | |||
| 634 | /** |
||
| 635 | * @param LexerInterface $lexer |
||
| 636 | * @return FragmentNodeInterface |
||
| 637 | * @throws SyntaxErrorException |
||
| 638 | */ |
||
| 639 | protected function parseFragment(LexerInterface $lexer): FragmentNodeInterface |
||
| 640 | { |
||
| 641 | $start = $lexer->getToken(); |
||
| 642 | |||
| 643 | $this->expect($lexer, TokenKindEnum::SPREAD); |
||
| 644 | |||
| 645 | $tokenValue = $lexer->getTokenValue(); |
||
| 646 | |||
| 647 | if ($tokenValue !== 'on' && $this->peek($lexer, TokenKindEnum::NAME)) { |
||
| 648 | return new FragmentSpreadNode([ |
||
| 649 | 'name' => $this->parseFragmentName($lexer), |
||
| 650 | 'directives' => $this->parseDirectives($lexer), |
||
| 651 | 'location' => $this->createLocation($lexer, $start), |
||
| 652 | ]); |
||
| 653 | } |
||
| 654 | |||
| 655 | if ($tokenValue === 'on') { |
||
| 656 | $lexer->advance(); |
||
| 657 | $typeCondition = $this->parseNamedType($lexer); |
||
| 658 | } |
||
| 659 | |||
| 660 | return new InlineFragmentNode([ |
||
| 661 | 'typeCondition' => $typeCondition ?? null, |
||
| 662 | 'directives' => $this->parseDirectives($lexer), |
||
| 663 | 'selectionSet' => $this->parseSelectionSet($lexer), |
||
| 664 | 'location' => $this->createLocation($lexer, $start), |
||
| 665 | ]); |
||
| 666 | } |
||
| 667 | |||
| 668 | /** |
||
| 669 | * @param LexerInterface $lexer |
||
| 670 | * @return FragmentDefinitionNode |
||
| 671 | * @throws SyntaxErrorException |
||
| 672 | */ |
||
| 673 | protected function parseFragmentDefinition(LexerInterface $lexer): FragmentDefinitionNode |
||
| 674 | { |
||
| 675 | $start = $lexer->getToken(); |
||
| 676 | |||
| 677 | $this->expectKeyword($lexer, KeywordEnum::FRAGMENT); |
||
| 678 | |||
| 679 | $parseTypeCondition = function (LexerInterface $lexer) { |
||
| 680 | $this->expectKeyword($lexer, 'on'); |
||
| 681 | return $this->parseNamedType($lexer); |
||
| 682 | }; |
||
| 683 | |||
| 684 | return new FragmentDefinitionNode([ |
||
| 685 | 'name' => $this->parseFragmentName($lexer), |
||
| 686 | 'variableDefinitions' => $this->parseVariableDefinitions($lexer), |
||
| 687 | 'typeCondition' => $parseTypeCondition($lexer), |
||
| 688 | 'directives' => $this->parseDirectives($lexer), |
||
| 689 | 'selectionSet' => $this->parseSelectionSet($lexer), |
||
| 690 | 'location' => $this->createLocation($lexer, $start), |
||
| 691 | ]); |
||
| 692 | } |
||
| 693 | |||
| 694 | /** |
||
| 695 | * @param LexerInterface $lexer |
||
| 696 | * @return NameNode |
||
| 697 | * @throws SyntaxErrorException |
||
| 698 | */ |
||
| 699 | protected function parseFragmentName(LexerInterface $lexer): NameNode |
||
| 700 | { |
||
| 701 | if ($lexer->getTokenValue() === 'on') { |
||
| 702 | throw $this->unexpected($lexer); |
||
| 703 | } |
||
| 704 | |||
| 705 | return $this->parseName($lexer); |
||
| 706 | } |
||
| 707 | |||
| 708 | /** |
||
| 709 | * @param LexerInterface $lexer |
||
| 710 | * @return array |
||
| 711 | * @throws SyntaxErrorException |
||
| 712 | */ |
||
| 713 | protected function parseImplementsInterfaces(LexerInterface $lexer): array |
||
| 714 | { |
||
| 715 | $types = []; |
||
| 716 | |||
| 717 | if ($lexer->getTokenValue() === 'implements') { |
||
| 718 | $lexer->advance(); |
||
| 719 | |||
| 720 | // Optional leading ampersand |
||
| 721 | $this->skip($lexer, TokenKindEnum::AMP); |
||
| 722 | |||
| 723 | do { |
||
| 724 | $types[] = $this->parseNamedType($lexer); |
||
| 725 | } while ($this->skip($lexer, TokenKindEnum::AMP)); |
||
| 726 | } |
||
| 727 | |||
| 728 | return $types; |
||
| 729 | } |
||
| 730 | |||
| 731 | /** |
||
| 732 | * @param LexerInterface $lexer |
||
| 733 | * @return array |
||
| 734 | * @throws SyntaxErrorException |
||
| 735 | */ |
||
| 736 | protected function parseInputFieldsDefinition(LexerInterface $lexer): array |
||
| 737 | { |
||
| 738 | $parseFunction = function (LexerInterface $lexer): InputValueDefinitionNode { |
||
| 739 | return $this->parseInputValueDefinition($lexer); |
||
| 740 | }; |
||
| 741 | |||
| 742 | return $this->peek($lexer, TokenKindEnum::BRACE_L) |
||
| 743 | ? $this->many( |
||
| 744 | $lexer, |
||
| 745 | TokenKindEnum::BRACE_L, |
||
| 746 | $parseFunction, |
||
| 747 | TokenKindEnum::BRACE_R |
||
| 748 | ) |
||
| 749 | : []; |
||
| 750 | } |
||
| 751 | |||
| 752 | /** |
||
| 753 | * @param LexerInterface $lexer |
||
| 754 | * @return InputObjectTypeDefinitionNode |
||
| 755 | * @throws SyntaxErrorException |
||
| 756 | */ |
||
| 757 | protected function parseInputObjectTypeDefinition(LexerInterface $lexer): InputObjectTypeDefinitionNode |
||
| 758 | { |
||
| 759 | $start = $lexer->getToken(); |
||
| 760 | |||
| 761 | $description = $this->parseDescription($lexer); |
||
| 762 | |||
| 763 | $this->expectKeyword($lexer, KeywordEnum::INPUT); |
||
| 764 | |||
| 765 | return new InputObjectTypeDefinitionNode([ |
||
| 766 | 'description' => $description, |
||
| 767 | 'name' => $this->parseName($lexer), |
||
| 768 | 'directives' => $this->parseDirectives($lexer, true), |
||
| 769 | 'fields' => $this->parseInputFieldsDefinition($lexer), |
||
| 770 | 'location' => $this->createLocation($lexer, $start), |
||
| 771 | ]); |
||
| 772 | } |
||
| 773 | |||
| 774 | /** |
||
| 775 | * @param LexerInterface $lexer |
||
| 776 | * @return InputObjectTypeExtensionNode |
||
| 777 | * @throws SyntaxErrorException |
||
| 778 | */ |
||
| 779 | protected function parseInputObjectTypeExtension(LexerInterface $lexer): InputObjectTypeExtensionNode |
||
| 780 | { |
||
| 781 | $start = $lexer->getToken(); |
||
| 782 | |||
| 783 | $this->expectKeyword($lexer, KeywordEnum::EXTEND); |
||
| 784 | $this->expectKeyword($lexer, KeywordEnum::INPUT); |
||
| 785 | |||
| 786 | $name = $this->parseName($lexer); |
||
| 787 | $directives = $this->parseDirectives($lexer, true); |
||
| 788 | $fields = $this->parseInputFieldsDefinition($lexer); |
||
| 789 | |||
| 790 | if (empty($directives) && empty($fields)) { |
||
| 791 | throw $this->unexpected($lexer); |
||
| 792 | } |
||
| 793 | |||
| 794 | return new InputObjectTypeExtensionNode([ |
||
| 795 | 'name' => $name, |
||
| 796 | 'directives' => $directives, |
||
| 797 | 'fields' => $fields, |
||
| 798 | 'location' => $this->createLocation($lexer, $start), |
||
| 799 | ]); |
||
| 800 | } |
||
| 801 | |||
| 802 | /** |
||
| 803 | * @param LexerInterface $lexer |
||
| 804 | * @return InputValueDefinitionNode |
||
| 805 | * @throws SyntaxErrorException |
||
| 806 | */ |
||
| 807 | protected function parseInputValueDefinition(LexerInterface $lexer): InputValueDefinitionNode |
||
| 808 | { |
||
| 809 | $start = $lexer->getToken(); |
||
| 810 | |||
| 811 | $description = $this->parseDescription($lexer); |
||
| 812 | $name = $this->parseName($lexer); |
||
| 813 | |||
| 814 | $this->expect($lexer, TokenKindEnum::COLON); |
||
| 815 | |||
| 816 | return new InputValueDefinitionNode([ |
||
| 817 | 'description' => $description, |
||
| 818 | 'name' => $name, |
||
| 819 | 'type' => $this->parseTypeReference($lexer), |
||
| 820 | 'defaultValue' => $this->skip($lexer, TokenKindEnum::EQUALS) |
||
| 821 | ? $this->parseValueLiteral($lexer, true) |
||
| 822 | : null, |
||
| 823 | 'directives' => $this->parseDirectives($lexer, true), |
||
| 824 | 'location' => $this->createLocation($lexer, $start), |
||
| 825 | ]); |
||
| 826 | } |
||
| 827 | |||
| 828 | /** |
||
| 829 | * @param LexerInterface $lexer |
||
| 830 | * @return InterfaceTypeDefinitionNode |
||
| 831 | * @throws SyntaxErrorException |
||
| 832 | */ |
||
| 833 | protected function parseInterfaceTypeDefinition(LexerInterface $lexer): InterfaceTypeDefinitionNode |
||
| 834 | { |
||
| 835 | $start = $lexer->getToken(); |
||
| 836 | |||
| 837 | $description = $this->parseDescription($lexer); |
||
| 838 | |||
| 839 | $this->expectKeyword($lexer, KeywordEnum::INTERFACE); |
||
| 840 | |||
| 841 | return new InterfaceTypeDefinitionNode([ |
||
| 842 | 'description' => $description, |
||
| 843 | 'name' => $this->parseName($lexer), |
||
| 844 | 'directives' => $this->parseDirectives($lexer), |
||
| 845 | 'fields' => $this->parseFieldsDefinition($lexer), |
||
| 846 | 'location' => $this->createLocation($lexer, $start), |
||
| 847 | ]); |
||
| 848 | } |
||
| 849 | |||
| 850 | /** |
||
| 851 | * @param LexerInterface $lexer |
||
| 852 | * @return InterfaceTypeExtensionNode |
||
| 853 | * @throws SyntaxErrorException |
||
| 854 | */ |
||
| 855 | protected function parseInterfaceTypeExtension(LexerInterface $lexer): InterfaceTypeExtensionNode |
||
| 856 | { |
||
| 857 | $start = $lexer->getToken(); |
||
| 858 | |||
| 859 | $this->expectKeyword($lexer, KeywordEnum::EXTEND); |
||
| 860 | $this->expectKeyword($lexer, KeywordEnum::INTERFACE); |
||
| 861 | |||
| 862 | $name = $this->parseName($lexer); |
||
| 863 | $directives = $this->parseDirectives($lexer); |
||
| 864 | $fields = $this->parseFieldsDefinition($lexer); |
||
| 865 | |||
| 866 | if (empty($directives) && empty($fields)) { |
||
| 867 | throw $this->unexpected($lexer); |
||
| 868 | } |
||
| 869 | |||
| 870 | return new InterfaceTypeExtensionNode([ |
||
| 871 | 'name' => $name, |
||
| 872 | 'directives' => $directives, |
||
| 873 | 'fields' => $fields, |
||
| 874 | 'location' => $this->createLocation($lexer, $start), |
||
| 875 | ]); |
||
| 876 | } |
||
| 877 | |||
| 878 | /** |
||
| 879 | * @param LexerInterface $lexer |
||
| 880 | * @return NamedTypeNode |
||
| 881 | * @throws SyntaxErrorException |
||
| 882 | */ |
||
| 883 | protected function parseNamedType(LexerInterface $lexer): NamedTypeNode |
||
| 884 | { |
||
| 885 | $start = $lexer->getToken(); |
||
| 886 | |||
| 887 | return new NamedTypeNode([ |
||
| 888 | 'name' => $this->parseName($lexer), |
||
| 889 | 'location' => $this->createLocation($lexer, $start), |
||
| 890 | ]); |
||
| 891 | } |
||
| 892 | |||
| 893 | /** |
||
| 894 | * @param LexerInterface $lexer |
||
| 895 | * @return NameNode |
||
| 896 | * @throws SyntaxErrorException |
||
| 897 | */ |
||
| 898 | protected function parseName(LexerInterface $lexer): NameNode |
||
| 899 | { |
||
| 900 | $token = $this->expect($lexer, TokenKindEnum::NAME); |
||
| 901 | |||
| 902 | return new NameNode([ |
||
| 903 | 'value' => $token->getValue(), |
||
| 904 | 'location' => $this->createLocation($lexer, $token), |
||
| 905 | ]); |
||
| 906 | } |
||
| 907 | |||
| 908 | /** |
||
| 909 | * @param LexerInterface $lexer |
||
| 910 | * @return ObjectTypeDefinitionNode |
||
| 911 | * @throws SyntaxErrorException |
||
| 912 | */ |
||
| 913 | protected function parseObjectTypeDefinition(LexerInterface $lexer): ObjectTypeDefinitionNode |
||
| 914 | { |
||
| 915 | $start = $lexer->getToken(); |
||
| 916 | |||
| 917 | $description = $this->parseDescription($lexer); |
||
| 918 | |||
| 919 | $this->expectKeyword($lexer, KeywordEnum::TYPE); |
||
| 920 | |||
| 921 | return new ObjectTypeDefinitionNode([ |
||
| 922 | 'description' => $description, |
||
| 923 | 'name' => $this->parseName($lexer), |
||
| 924 | 'interfaces' => $this->parseImplementsInterfaces($lexer), |
||
| 925 | 'directives' => $this->parseDirectives($lexer), |
||
| 926 | 'fields' => $this->parseFieldsDefinition($lexer), |
||
| 927 | 'location' => $this->createLocation($lexer, $start), |
||
| 928 | ]); |
||
| 929 | } |
||
| 930 | |||
| 931 | /** |
||
| 932 | * @param LexerInterface $lexer |
||
| 933 | * @return ObjectTypeExtensionNode |
||
| 934 | * @throws SyntaxErrorException |
||
| 935 | */ |
||
| 936 | protected function parseObjectTypeExtension(LexerInterface $lexer): ObjectTypeExtensionNode |
||
| 937 | { |
||
| 938 | $start = $lexer->getToken(); |
||
| 939 | |||
| 940 | $this->expectKeyword($lexer, KeywordEnum::EXTEND); |
||
| 941 | $this->expectKeyword($lexer, KeywordEnum::TYPE); |
||
| 942 | |||
| 943 | $name = $this->parseName($lexer); |
||
| 944 | $interfaces = $this->parseImplementsInterfaces($lexer); |
||
| 945 | $directives = $this->parseDirectives($lexer); |
||
| 946 | $fields = $this->parseFieldsDefinition($lexer); |
||
| 947 | |||
| 948 | if (empty($interfaces) && empty($directives) && empty($fields)) { |
||
| 949 | throw $this->unexpected($lexer); |
||
| 950 | } |
||
| 951 | |||
| 952 | return new ObjectTypeExtensionNode([ |
||
| 953 | 'name' => $name, |
||
| 954 | 'interfaces' => $interfaces, |
||
| 955 | 'directives' => $directives, |
||
| 956 | 'fields' => $fields, |
||
| 957 | 'location' => $this->createLocation($lexer, $start), |
||
| 958 | ]); |
||
| 959 | } |
||
| 960 | |||
| 961 | /** |
||
| 962 | * @param LexerInterface $lexer |
||
| 963 | * @return SchemaDefinitionNode |
||
| 964 | * @throws SyntaxErrorException |
||
| 965 | */ |
||
| 966 | protected function parseSchemaDefinition(LexerInterface $lexer): SchemaDefinitionNode |
||
| 967 | { |
||
| 968 | $start = $lexer->getToken(); |
||
| 969 | |||
| 970 | $this->expectKeyword($lexer, KeywordEnum::SCHEMA); |
||
| 971 | |||
| 972 | return new SchemaDefinitionNode([ |
||
| 973 | 'directives' => $this->parseDirectives($lexer), |
||
| 974 | 'operationTypes' => $this->many( |
||
| 975 | $lexer, |
||
| 976 | TokenKindEnum::BRACE_L, |
||
| 977 | [$this, 'parseOperationTypeDefinition'], |
||
| 978 | TokenKindEnum::BRACE_R |
||
| 979 | ), |
||
| 980 | 'location' => $this->createLocation($lexer, $start), |
||
| 981 | ]); |
||
| 982 | } |
||
| 983 | |||
| 984 | /** |
||
| 985 | * @param LexerInterface $lexer |
||
| 986 | * @return OperationTypeDefinitionNode |
||
| 987 | * @throws SyntaxErrorException |
||
| 988 | */ |
||
| 989 | protected function parseOperationTypeDefinition(LexerInterface $lexer): OperationTypeDefinitionNode |
||
| 990 | { |
||
| 991 | $start = $lexer->getToken(); |
||
| 992 | |||
| 993 | $operation = $this->parseOperationType($lexer); |
||
| 994 | |||
| 995 | $this->expect($lexer, TokenKindEnum::COLON); |
||
| 996 | |||
| 997 | return new OperationTypeDefinitionNode([ |
||
| 998 | 'operation' => $operation, |
||
| 999 | 'type' => $this->parseNamedType($lexer), |
||
| 1000 | 'location' => $this->createLocation($lexer, $start), |
||
| 1001 | ]); |
||
| 1002 | } |
||
| 1003 | |||
| 1004 | /** |
||
| 1005 | * @param LexerInterface $lexer |
||
| 1006 | * @return string |
||
| 1007 | * @throws SyntaxErrorException |
||
| 1008 | */ |
||
| 1009 | protected function parseOperationType(LexerInterface $lexer): string |
||
| 1010 | { |
||
| 1011 | $token = $this->expect($lexer, TokenKindEnum::NAME); |
||
| 1012 | $value = $token->getValue(); |
||
| 1013 | |||
| 1014 | if (isOperation($value)) { |
||
| 1015 | return $value; |
||
|
Bug
Best Practice
introduced
by
|
|||
| 1016 | } |
||
| 1017 | |||
| 1018 | throw $this->unexpected($lexer, $token); |
||
| 1019 | } |
||
| 1020 | |||
| 1021 | /** |
||
| 1022 | * @param LexerInterface $lexer |
||
| 1023 | * @return SelectionSetNode |
||
| 1024 | * @throws SyntaxErrorException |
||
| 1025 | */ |
||
| 1026 | protected function parseSelectionSet(LexerInterface $lexer): SelectionSetNode |
||
| 1027 | { |
||
| 1028 | $start = $lexer->getToken(); |
||
| 1029 | |||
| 1030 | return new SelectionSetNode([ |
||
| 1031 | 'selections' => $this->many( |
||
| 1032 | $lexer, |
||
| 1033 | TokenKindEnum::BRACE_L, |
||
| 1034 | [$this, 'parseSelection'], |
||
| 1035 | TokenKindEnum::BRACE_R |
||
| 1036 | ), |
||
| 1037 | 'location' => $this->createLocation($lexer, $start), |
||
| 1038 | ]); |
||
| 1039 | } |
||
| 1040 | |||
| 1041 | /** |
||
| 1042 | * @param LexerInterface $lexer |
||
| 1043 | * @return NodeInterface|FragmentNodeInterface|FieldNode |
||
| 1044 | * @throws SyntaxErrorException |
||
| 1045 | */ |
||
| 1046 | protected function parseSelection(LexerInterface $lexer): NodeInterface |
||
| 1047 | { |
||
| 1048 | return $this->peek($lexer, TokenKindEnum::SPREAD) |
||
| 1049 | ? $this->parseFragment($lexer) |
||
| 1050 | : $this->parseField($lexer); |
||
| 1051 | } |
||
| 1052 | |||
| 1053 | /** |
||
| 1054 | * @param LexerInterface $lexer |
||
| 1055 | * @return ScalarTypeDefinitionNode |
||
| 1056 | * @throws SyntaxErrorException |
||
| 1057 | */ |
||
| 1058 | protected function parseScalarTypeDefinition(LexerInterface $lexer): ScalarTypeDefinitionNode |
||
| 1059 | { |
||
| 1060 | $start = $lexer->getToken(); |
||
| 1061 | |||
| 1062 | $description = $this->parseDescription($lexer); |
||
| 1063 | |||
| 1064 | $this->expectKeyword($lexer, KeywordEnum::SCALAR); |
||
| 1065 | |||
| 1066 | return new ScalarTypeDefinitionNode([ |
||
| 1067 | 'description' => $description, |
||
| 1068 | 'name' => $this->parseName($lexer), |
||
| 1069 | 'directives' => $this->parseDirectives($lexer), |
||
| 1070 | 'location' => $this->createLocation($lexer, $start), |
||
| 1071 | ]); |
||
| 1072 | } |
||
| 1073 | |||
| 1074 | /** |
||
| 1075 | * @param LexerInterface $lexer |
||
| 1076 | * @param bool $isConst |
||
| 1077 | * @return ScalarTypeExtensionNode |
||
| 1078 | * @throws SyntaxErrorException |
||
| 1079 | */ |
||
| 1080 | protected function parseScalarTypeExtension(LexerInterface $lexer, bool $isConst = false): ScalarTypeExtensionNode |
||
| 1081 | { |
||
| 1082 | $start = $lexer->getToken(); |
||
| 1083 | |||
| 1084 | $this->expectKeyword($lexer, KeywordEnum::EXTEND); |
||
| 1085 | $this->expectKeyword($lexer, KeywordEnum::SCALAR); |
||
| 1086 | |||
| 1087 | $name = $this->parseName($lexer); |
||
| 1088 | $directives = $this->parseDirectives($lexer, $isConst); |
||
| 1089 | |||
| 1090 | if (empty($directives)) { |
||
| 1091 | throw $this->unexpected($lexer); |
||
| 1092 | } |
||
| 1093 | |||
| 1094 | return new ScalarTypeExtensionNode([ |
||
| 1095 | 'name' => $name, |
||
| 1096 | 'directives' => $directives, |
||
| 1097 | 'location' => $this->createLocation($lexer, $start), |
||
| 1098 | ]); |
||
| 1099 | } |
||
| 1100 | |||
| 1101 | /** |
||
| 1102 | * @param LexerInterface $lexer |
||
| 1103 | * @return StringValueNode |
||
| 1104 | */ |
||
| 1105 | protected function parseStringLiteral(LexerInterface $lexer): StringValueNode |
||
| 1106 | { |
||
| 1107 | $token = $lexer->getToken(); |
||
| 1108 | |||
| 1109 | $lexer->advance(); |
||
| 1110 | |||
| 1111 | return new StringValueNode([ |
||
| 1112 | 'value' => $token->getValue(), |
||
| 1113 | 'block' => $token->getKind() === TokenKindEnum::BLOCK_STRING, |
||
| 1114 | 'location' => $this->createLocation($lexer, $token), |
||
| 1115 | ]); |
||
| 1116 | } |
||
| 1117 | |||
| 1118 | /** |
||
| 1119 | * @param LexerInterface $lexer |
||
| 1120 | * @return TypeNodeInterface |
||
| 1121 | * @throws SyntaxErrorException |
||
| 1122 | */ |
||
| 1123 | protected function parseTypeReference(LexerInterface $lexer): TypeNodeInterface |
||
| 1124 | { |
||
| 1125 | $start = $lexer->getToken(); |
||
| 1126 | |||
| 1127 | if ($this->skip($lexer, TokenKindEnum::BRACKET_L)) { |
||
| 1128 | $type = $this->parseTypeReference($lexer); |
||
| 1129 | |||
| 1130 | $this->expect($lexer, TokenKindEnum::BRACKET_R); |
||
| 1131 | |||
| 1132 | $type = new ListTypeNode([ |
||
| 1133 | 'type' => $type, |
||
| 1134 | 'location' => $this->createLocation($lexer, $start), |
||
| 1135 | ]); |
||
| 1136 | } else { |
||
| 1137 | $type = $this->parseNamedType($lexer); |
||
| 1138 | } |
||
| 1139 | |||
| 1140 | if ($this->skip($lexer, TokenKindEnum::BANG)) { |
||
| 1141 | return new NonNullTypeNode([ |
||
| 1142 | 'type' => $type, |
||
| 1143 | 'location' => $this->createLocation($lexer, $start), |
||
| 1144 | ]); |
||
| 1145 | } |
||
| 1146 | |||
| 1147 | return $type; |
||
| 1148 | } |
||
| 1149 | |||
| 1150 | /** |
||
| 1151 | * @param LexerInterface $lexer |
||
| 1152 | * @return UnionTypeDefinitionNode |
||
| 1153 | * @throws SyntaxErrorException |
||
| 1154 | */ |
||
| 1155 | protected function parseUnionTypeDefinition(LexerInterface $lexer): UnionTypeDefinitionNode |
||
| 1156 | { |
||
| 1157 | $start = $lexer->getToken(); |
||
| 1158 | |||
| 1159 | $description = $this->parseDescription($lexer); |
||
| 1160 | |||
| 1161 | $this->expectKeyword($lexer, KeywordEnum::UNION); |
||
| 1162 | |||
| 1163 | return new UnionTypeDefinitionNode([ |
||
| 1164 | 'description' => $description, |
||
| 1165 | 'name' => $this->parseName($lexer), |
||
| 1166 | 'directives' => $this->parseDirectives($lexer), |
||
| 1167 | 'types' => $this->parseUnionMemberTypes($lexer), |
||
| 1168 | 'location' => $this->createLocation($lexer, $start), |
||
| 1169 | ]); |
||
| 1170 | } |
||
| 1171 | |||
| 1172 | /** |
||
| 1173 | * @param LexerInterface $lexer |
||
| 1174 | * @return UnionTypeExtensionNode |
||
| 1175 | * @throws SyntaxErrorException |
||
| 1176 | */ |
||
| 1177 | protected function parseUnionTypeExtension(LexerInterface $lexer): UnionTypeExtensionNode |
||
| 1178 | { |
||
| 1179 | $start = $lexer->getToken(); |
||
| 1180 | |||
| 1181 | $this->expectKeyword($lexer, KeywordEnum::EXTEND); |
||
| 1182 | $this->expectKeyword($lexer, KeywordEnum::UNION); |
||
| 1183 | |||
| 1184 | $name = $this->parseName($lexer); |
||
| 1185 | $directives = $this->parseDirectives($lexer); |
||
| 1186 | $types = $this->parseUnionMemberTypes($lexer); |
||
| 1187 | |||
| 1188 | if (empty($directives) && empty($types)) { |
||
| 1189 | throw $this->unexpected($lexer); |
||
| 1190 | } |
||
| 1191 | |||
| 1192 | return new UnionTypeExtensionNode([ |
||
| 1193 | 'name' => $name, |
||
| 1194 | 'directives' => $directives, |
||
| 1195 | 'types' => $types, |
||
| 1196 | 'location' => $this->createLocation($lexer, $start), |
||
| 1197 | ]); |
||
| 1198 | } |
||
| 1199 | |||
| 1200 | /** |
||
| 1201 | * @param LexerInterface $lexer |
||
| 1202 | * @return array |
||
| 1203 | * @throws SyntaxErrorException |
||
| 1204 | */ |
||
| 1205 | protected function parseUnionMemberTypes(LexerInterface $lexer): array |
||
| 1206 | { |
||
| 1207 | $types = []; |
||
| 1208 | |||
| 1209 | if ($this->skip($lexer, TokenKindEnum::EQUALS)) { |
||
| 1210 | // Optional leading pipe |
||
| 1211 | $this->skip($lexer, TokenKindEnum::PIPE); |
||
| 1212 | |||
| 1213 | do { |
||
| 1214 | $types[] = $this->parseNamedType($lexer); |
||
| 1215 | } while ($this->skip($lexer, TokenKindEnum::PIPE)); |
||
| 1216 | } |
||
| 1217 | |||
| 1218 | return $types; |
||
| 1219 | } |
||
| 1220 | |||
| 1221 | /** |
||
| 1222 | * @param LexerInterface $lexer |
||
| 1223 | * @param bool $isConst |
||
| 1224 | * @return NodeInterface|ValueNodeInterface|TypeNodeInterface |
||
| 1225 | * @throws SyntaxErrorException |
||
| 1226 | */ |
||
| 1227 | protected function parseValueLiteral(LexerInterface $lexer, bool $isConst = false): NodeInterface |
||
| 1228 | { |
||
| 1229 | $token = $lexer->getToken(); |
||
| 1230 | |||
| 1231 | switch ($token->getKind()) { |
||
| 1232 | case TokenKindEnum::BRACKET_L: |
||
| 1233 | return $this->parseList($lexer, $isConst); |
||
| 1234 | case TokenKindEnum::BRACE_L: |
||
| 1235 | return $this->parseObject($lexer, $isConst); |
||
| 1236 | case TokenKindEnum::INT: |
||
| 1237 | $lexer->advance(); |
||
| 1238 | |||
| 1239 | return new IntValueNode([ |
||
| 1240 | 'value' => $token->getValue(), |
||
| 1241 | 'location' => $this->createLocation($lexer, $token), |
||
| 1242 | ]); |
||
| 1243 | case TokenKindEnum::FLOAT: |
||
| 1244 | $lexer->advance(); |
||
| 1245 | |||
| 1246 | return new FloatValueNode([ |
||
| 1247 | 'value' => $token->getValue(), |
||
| 1248 | 'location' => $this->createLocation($lexer, $token), |
||
| 1249 | ]); |
||
| 1250 | case TokenKindEnum::STRING: |
||
| 1251 | case TokenKindEnum::BLOCK_STRING: |
||
| 1252 | return $this->parseStringLiteral($lexer); |
||
| 1253 | case TokenKindEnum::NAME: |
||
| 1254 | $value = $token->getValue(); |
||
| 1255 | |||
| 1256 | if ($value === 'true' || $value === 'false') { |
||
| 1257 | $lexer->advance(); |
||
| 1258 | |||
| 1259 | return new BooleanValueNode([ |
||
| 1260 | 'value' => $value === 'true', |
||
| 1261 | 'location' => $this->createLocation($lexer, $token), |
||
| 1262 | ]); |
||
| 1263 | } |
||
| 1264 | |||
| 1265 | if ($value === 'null') { |
||
| 1266 | $lexer->advance(); |
||
| 1267 | |||
| 1268 | return new NullValueNode([ |
||
| 1269 | 'location' => $this->createLocation($lexer, $token), |
||
| 1270 | ]); |
||
| 1271 | } |
||
| 1272 | |||
| 1273 | $lexer->advance(); |
||
| 1274 | |||
| 1275 | return new EnumValueNode([ |
||
| 1276 | 'value' => $token->getValue(), |
||
| 1277 | 'location' => $this->createLocation($lexer, $token), |
||
| 1278 | ]); |
||
| 1279 | case TokenKindEnum::DOLLAR: |
||
| 1280 | if (!$isConst) { |
||
| 1281 | return $this->parseVariable($lexer); |
||
| 1282 | } |
||
| 1283 | break; |
||
| 1284 | } |
||
| 1285 | |||
| 1286 | throw $this->unexpected($lexer); |
||
| 1287 | } |
||
| 1288 | |||
| 1289 | /** |
||
| 1290 | * @param LexerInterface $lexer |
||
| 1291 | * @param bool $isConst |
||
| 1292 | * @return ListValueNode |
||
| 1293 | * @throws SyntaxErrorException |
||
| 1294 | */ |
||
| 1295 | protected function parseList(LexerInterface $lexer, bool $isConst): ListValueNode |
||
| 1296 | { |
||
| 1297 | $start = $lexer->getToken(); |
||
| 1298 | |||
| 1299 | $parseFunction = function (LexerInterface $lexer) use ($isConst) { |
||
| 1300 | return $this->parseValueLiteral($lexer, $isConst); |
||
| 1301 | }; |
||
| 1302 | |||
| 1303 | return new ListValueNode([ |
||
| 1304 | 'values' => $this->any( |
||
| 1305 | $lexer, |
||
| 1306 | TokenKindEnum::BRACKET_L, |
||
| 1307 | $parseFunction, |
||
| 1308 | TokenKindEnum::BRACKET_R |
||
| 1309 | ), |
||
| 1310 | 'location' => $this->createLocation($lexer, $start), |
||
| 1311 | ]); |
||
| 1312 | } |
||
| 1313 | |||
| 1314 | /** |
||
| 1315 | * @param LexerInterface $lexer |
||
| 1316 | * @param bool $isConst |
||
| 1317 | * @return ObjectValueNode |
||
| 1318 | * @throws SyntaxErrorException |
||
| 1319 | */ |
||
| 1320 | protected function parseObject(LexerInterface $lexer, bool $isConst): ObjectValueNode |
||
| 1321 | { |
||
| 1322 | $start = $lexer->getToken(); |
||
| 1323 | |||
| 1324 | $this->expect($lexer, TokenKindEnum::BRACE_L); |
||
| 1325 | |||
| 1326 | $fields = []; |
||
| 1327 | |||
| 1328 | while (!$this->skip($lexer, TokenKindEnum::BRACE_R)) { |
||
| 1329 | $fields[] = $this->parseObjectField($lexer, $isConst); |
||
| 1330 | } |
||
| 1331 | |||
| 1332 | return new ObjectValueNode([ |
||
| 1333 | 'fields' => $fields, |
||
| 1334 | 'location' => $this->createLocation($lexer, $start), |
||
| 1335 | ]); |
||
| 1336 | } |
||
| 1337 | |||
| 1338 | /** |
||
| 1339 | * @param LexerInterface $lexer |
||
| 1340 | * @param bool $isConst |
||
| 1341 | * @return ObjectFieldNode |
||
| 1342 | * @throws SyntaxErrorException |
||
| 1343 | */ |
||
| 1344 | protected function parseObjectField(LexerInterface $lexer, bool $isConst): ObjectFieldNode |
||
| 1345 | { |
||
| 1346 | $start = $lexer->getToken(); |
||
| 1347 | |||
| 1348 | $parseValue = function (LexerInterface $lexer, bool $isConst) { |
||
| 1349 | $this->expect($lexer, TokenKindEnum::COLON); |
||
| 1350 | |||
| 1351 | return $this->parseValueLiteral($lexer, $isConst); |
||
| 1352 | }; |
||
| 1353 | |||
| 1354 | return new ObjectFieldNode([ |
||
| 1355 | 'name' => $this->parseName($lexer), |
||
| 1356 | 'value' => $parseValue($lexer, $isConst), |
||
| 1357 | 'location' => $this->createLocation($lexer, $start), |
||
| 1358 | ]); |
||
| 1359 | } |
||
| 1360 | |||
| 1361 | /** |
||
| 1362 | * @param LexerInterface $lexer |
||
| 1363 | * @return VariableNode |
||
| 1364 | * @throws SyntaxErrorException |
||
| 1365 | */ |
||
| 1366 | protected function parseVariable(LexerInterface $lexer): VariableNode |
||
| 1367 | { |
||
| 1368 | $start = $lexer->getToken(); |
||
| 1369 | |||
| 1370 | $this->expect($lexer, TokenKindEnum::DOLLAR); |
||
| 1371 | |||
| 1372 | return new VariableNode([ |
||
| 1373 | 'name' => $this->parseName($lexer), |
||
| 1374 | 'location' => $this->createLocation($lexer, $start), |
||
| 1375 | ]); |
||
| 1376 | } |
||
| 1377 | |||
| 1378 | /** |
||
| 1379 | * @param LexerInterface $lexer |
||
| 1380 | * @return array |
||
| 1381 | * @throws SyntaxErrorException |
||
| 1382 | */ |
||
| 1383 | protected function parseVariableDefinitions(LexerInterface $lexer): array |
||
| 1384 | { |
||
| 1385 | return $this->peek($lexer, TokenKindEnum::PAREN_L) |
||
| 1386 | ? $this->many( |
||
| 1387 | $lexer, |
||
| 1388 | TokenKindEnum::PAREN_L, |
||
| 1389 | [$this, 'parseVariableDefinition'], |
||
| 1390 | TokenKindEnum::PAREN_R |
||
| 1391 | ) |
||
| 1392 | : []; |
||
| 1393 | } |
||
| 1394 | |||
| 1395 | /** |
||
| 1396 | * @param LexerInterface $lexer |
||
| 1397 | * @return VariableDefinitionNode |
||
| 1398 | * @throws SyntaxErrorException |
||
| 1399 | */ |
||
| 1400 | protected function parseVariableDefinition(LexerInterface $lexer): VariableDefinitionNode |
||
| 1401 | { |
||
| 1402 | $start = $lexer->getToken(); |
||
| 1403 | |||
| 1404 | /** |
||
| 1405 | * @param LexerInterface $lexer |
||
| 1406 | * @return mixed |
||
| 1407 | */ |
||
| 1408 | $parseType = function (LexerInterface $lexer): TypeNodeInterface { |
||
| 1409 | $this->expect($lexer, TokenKindEnum::COLON); |
||
| 1410 | |||
| 1411 | return $this->parseTypeReference($lexer); |
||
| 1412 | }; |
||
| 1413 | |||
| 1414 | return new VariableDefinitionNode([ |
||
| 1415 | 'variable' => $this->parseVariable($lexer), |
||
| 1416 | 'type' => $parseType($lexer), |
||
| 1417 | 'defaultValue' => $this->skip($lexer, TokenKindEnum::EQUALS) |
||
| 1418 | ? $this->parseValueLiteral($lexer, true) |
||
| 1419 | : null, |
||
| 1420 | 'location' => $this->createLocation($lexer, $start), |
||
| 1421 | ]); |
||
| 1422 | } |
||
| 1423 | |||
| 1424 | /** |
||
| 1425 | * @param string|Source $source |
||
| 1426 | * @param array $options |
||
| 1427 | * @return LexerInterface |
||
| 1428 | * @throws InvariantException |
||
| 1429 | */ |
||
| 1430 | protected function createLexer($source, array $options): LexerInterface |
||
| 1431 | { |
||
| 1432 | return new Lexer($source instanceof Source ? $source : new Source($source), $options); |
||
| 1433 | } |
||
| 1434 | |||
| 1435 | /** |
||
| 1436 | * @param LexerInterface $lexer |
||
| 1437 | * @param Token $startToken |
||
| 1438 | * @return Location|null |
||
| 1439 | */ |
||
| 1440 | protected function createLocation(LexerInterface $lexer, Token $startToken): ?Location |
||
| 1441 | { |
||
| 1442 | return !$lexer->getOption('noLocation', false) |
||
| 1443 | ? new Location($startToken->getStart(), $lexer->getLastToken()->getEnd(), $lexer->getSource()) |
||
| 1444 | : null; |
||
| 1445 | } |
||
| 1446 | |||
| 1447 | /** |
||
| 1448 | * Determines if the next token is of a given kind. |
||
| 1449 | * |
||
| 1450 | * @param LexerInterface $lexer |
||
| 1451 | * @param string $kind |
||
| 1452 | * @return bool |
||
| 1453 | */ |
||
| 1454 | protected function peek(LexerInterface $lexer, string $kind): bool |
||
| 1455 | { |
||
| 1456 | return $lexer->getTokenKind() === $kind; |
||
| 1457 | } |
||
| 1458 | |||
| 1459 | /** |
||
| 1460 | * If the next token is of the given kind, return true after advancing |
||
| 1461 | * the lexer. Otherwise, do not change the parser state and return false. |
||
| 1462 | * |
||
| 1463 | * @param LexerInterface $lexer |
||
| 1464 | * @param string $kind |
||
| 1465 | * @return bool |
||
| 1466 | */ |
||
| 1467 | protected function skip(LexerInterface $lexer, string $kind): bool |
||
| 1468 | { |
||
| 1469 | if ($match = $this->peek($lexer, $kind)) { |
||
| 1470 | $lexer->advance(); |
||
| 1471 | } |
||
| 1472 | |||
| 1473 | return $match; |
||
| 1474 | } |
||
| 1475 | |||
| 1476 | /** |
||
| 1477 | * If the next token is of the given kind, return that token after advancing |
||
| 1478 | * the lexer. Otherwise, do not change the parser state and throw an error. |
||
| 1479 | * |
||
| 1480 | * @param LexerInterface $lexer |
||
| 1481 | * @param string $kind |
||
| 1482 | * @return Token |
||
| 1483 | * @throws SyntaxErrorException |
||
| 1484 | */ |
||
| 1485 | protected function expect(LexerInterface $lexer, string $kind): Token |
||
| 1486 | { |
||
| 1487 | $token = $lexer->getToken(); |
||
| 1488 | |||
| 1489 | if ($token->getKind() === $kind) { |
||
| 1490 | $lexer->advance(); |
||
| 1491 | return $token; |
||
| 1492 | } |
||
| 1493 | |||
| 1494 | throw new SyntaxErrorException( |
||
| 1495 | $lexer->getSource(), |
||
| 1496 | $token->getStart(), |
||
| 1497 | sprintf('Expected %s, found %s.', $kind, $token) |
||
| 1498 | ); |
||
| 1499 | } |
||
| 1500 | |||
| 1501 | /** |
||
| 1502 | * @param LexerInterface $lexer |
||
| 1503 | * @param string $value |
||
| 1504 | * @return Token |
||
| 1505 | * @throws SyntaxErrorException |
||
| 1506 | */ |
||
| 1507 | protected function expectKeyword(LexerInterface $lexer, string $value): Token |
||
| 1520 | ); |
||
| 1521 | } |
||
| 1522 | |||
| 1523 | /** |
||
| 1524 | * Helper function for creating an error when an unexpected lexed token |
||
| 1525 | * is encountered. |
||
| 1526 | * |
||
| 1527 | * @param LexerInterface $lexer |
||
| 1528 | * @param Token|null $atToken |
||
| 1529 | * @return SyntaxErrorException |
||
| 1530 | */ |
||
| 1531 | protected function unexpected(LexerInterface $lexer, ?Token $atToken = null): SyntaxErrorException |
||
| 1539 | ); |
||
| 1540 | } |
||
| 1541 | |||
| 1542 | /** |
||
| 1543 | * Returns a possibly empty list of parse nodes, determined by |
||
| 1544 | * the parseFn. This list begins with a lex token of openKind |
||
| 1545 | * and ends with a lex token of closeKind. Advances the parser |
||
| 1546 | * to the next lex token after the closing token. |
||
| 1547 | * |
||
| 1548 | * @param LexerInterface $lexer |
||
| 1549 | * @param string $openKind |
||
| 1550 | * @param callable $parseFunction |
||
| 1551 | * @param string $closeKind |
||
| 1552 | * @return array |
||
| 1553 | * @throws SyntaxErrorException |
||
| 1554 | */ |
||
| 1555 | protected function any(LexerInterface $lexer, string $openKind, callable $parseFunction, string $closeKind): array |
||
| 1566 | } |
||
| 1567 | |||
| 1568 | /** |
||
| 1569 | * Returns a non-empty list of parse nodes, determined by |
||
| 1570 | * the parseFn. This list begins with a lex token of openKind |
||
| 1571 | * and ends with a lex token of closeKind. Advances the parser |
||
| 1572 | * to the next lex token after the closing token. |
||
| 1573 | * |
||
| 1574 | * @param LexerInterface $lexer |
||
| 1575 | * @param string $openKind |
||
| 1576 | * @param callable $parseFunction |
||
| 1577 | * @param string $closeKind |
||
| 1578 | * @return array |
||
| 1579 | * @throws SyntaxErrorException |
||
| 1580 | */ |
||
| 1581 | protected function many(LexerInterface $lexer, string $openKind, callable $parseFunction, string $closeKind): array |
||
| 1582 | { |
||
| 1583 | $this->expect($lexer, $openKind); |
||
| 1584 | |||
| 1585 | $nodes = [$parseFunction($lexer)]; |
||
| 1586 | |||
| 1587 | while (!$this->skip($lexer, $closeKind)) { |
||
| 1588 | $nodes[] = $parseFunction($lexer); |
||
| 1589 | } |
||
| 1590 | |||
| 1591 | return $nodes; |
||
| 1592 | } |
||
| 1593 | |||
| 1594 | /** |
||
| 1595 | * @param LexerInterface $lexer |
||
| 1596 | * @return bool |
||
| 1597 | */ |
||
| 1598 | protected function peekDescription(LexerInterface $lexer): bool |
||
| 1599 | { |
||
| 1600 | return $this->peek($lexer, TokenKindEnum::STRING) || $this->peek($lexer, TokenKindEnum::BLOCK_STRING); |
||
| 1601 | } |
||
| 1602 | } |
||
| 1603 |
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