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<?php |
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declare(strict_types=1); |
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namespace JMS\Serializer\Metadata\Driver; |
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class DocBlockTypeResolver |
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{ |
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/** resolve type hints from property */ |
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private const CLASS_PROPERTY_TYPE_HINT_REGEX = '#@var[\s]*([^\n\$]*)#'; |
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/** resolve single use statements */ |
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private const SINGLE_USE_STATEMENTS_REGEX = '/^[^\S\r\n]*use[\s]*([^;\n]*)[\s]*;$/m'; |
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/** resolve group use statements */ |
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private const GROUP_USE_STATEMENTS_REGEX = '/^[^\S\r\n]*use[[\s]*([^;\n]*)[\s]*{([a-zA-Z0-9\s\n\r,]*)};$/m'; |
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private const GLOBAL_NAMESPACE_PREFIX = '\\'; |
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public function getPropertyDocblockTypeHint(\ReflectionProperty $reflectionProperty): ?string |
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{ |
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preg_match_all(self::CLASS_PROPERTY_TYPE_HINT_REGEX, $reflectionProperty->getDocComment(), $matchedDocBlockParameterTypes); |
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$typeHint = trim($matchedDocBlockParameterTypes[1][0]); |
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$unionTypeHint = []; |
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foreach (explode('|', $typeHint) as $singleTypeHint) { |
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if ('null' !== $singleTypeHint) { |
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$unionTypeHint[] = $singleTypeHint; |
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} |
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} |
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$typeHint = implode('|', $unionTypeHint); |
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if (count($unionTypeHint) > 1) { |
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throw new \InvalidArgumentException(sprintf("Can't use union type %s for collection in %s:%s", $typeHint, $reflectionProperty->getDeclaringClass()->getName(), $reflectionProperty->getName())); |
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} |
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if (false !== strpos($typeHint, 'array<')) { |
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$resolvedTypes = []; |
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preg_match_all("#array<(.*)>#", $typeHint, $genericTypesToResolve); |
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$genericTypesToResolve = $genericTypesToResolve[1][0]; |
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foreach (explode(",", $genericTypesToResolve) as $genericTypeToResolve) { |
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$resolvedTypes[] = $this->resolveType(trim($genericTypeToResolve), $reflectionProperty); |
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} |
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return "array<" . implode(",", $resolvedTypes) . ">"; |
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}elseif (false === strpos($typeHint, '[]')) { |
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throw new \InvalidArgumentException(sprintf("Can't use incorrect type %s for collection in %s:%s", $typeHint, $reflectionProperty->getDeclaringClass()->getName(), $reflectionProperty->getName())); |
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} |
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$typeHint = rtrim($typeHint, '[]'); |
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$typeHint = $this->resolveType($typeHint, $reflectionProperty); |
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return 'array<' . ltrim($typeHint, '\\') . '>'; |
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} |
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private function expandClassNameUsingUseStatements(string $typeHint, \ReflectionClass $declaringClass, \ReflectionProperty $reflectionProperty): string |
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{ |
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if (class_exists($typeHint)) { |
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return $typeHint; |
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} |
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$expandedClassName = $declaringClass->getNamespaceName() . '\\' . $typeHint; |
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if (class_exists($expandedClassName)) { |
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return $expandedClassName; |
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} |
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$classContents = file_get_contents($declaringClass->getFileName()); |
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$foundUseStatements = $this->gatherGroupUseStatements($classContents); |
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$foundUseStatements = array_merge($this->gatherSingleUseStatements($classContents), $foundUseStatements); |
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foreach ($foundUseStatements as $statementClassName) { |
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if ($alias = explode('as', $statementClassName)) { |
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if (array_key_exists(1, $alias) && trim($alias[1]) === $typeHint) { |
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return trim($alias[0]); |
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} |
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} |
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if ($this->endsWith($statementClassName, $typeHint)) { |
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return $statementClassName; |
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} |
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} |
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throw new \InvalidArgumentException(sprintf("Can't use incorrect type %s for collection in %s:%s", $typeHint, $declaringClass->getName(), $reflectionProperty->getName())); |
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} |
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private function endsWith(string $statementClassToCheck, string $typeHintToSearchFor): bool |
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{ |
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$typeHintToSearchFor = '\\' . $typeHintToSearchFor; |
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return substr($statementClassToCheck, -strlen($typeHintToSearchFor)) === $typeHintToSearchFor; |
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} |
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private function isPrimitiveType(string $type): bool |
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{ |
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return in_array($type, ['int', 'float', 'bool', 'string']); |
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} |
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private function hasGlobalNamespacePrefix(string $typeHint): bool |
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{ |
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return self::GLOBAL_NAMESPACE_PREFIX === $typeHint[0]; |
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} |
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private function gatherGroupUseStatements(string $classContents): array |
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{ |
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$foundUseStatements = []; |
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preg_match_all(self::GROUP_USE_STATEMENTS_REGEX, $classContents, $foundGroupUseStatements); |
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for ($useStatementIndex = 0; $useStatementIndex < count($foundGroupUseStatements[0]); $useStatementIndex++) { |
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foreach (explode(',', $foundGroupUseStatements[2][$useStatementIndex]) as $singleUseStatement) { |
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$foundUseStatements[] = trim($foundGroupUseStatements[1][$useStatementIndex]) . trim($singleUseStatement); |
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} |
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} |
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return $foundUseStatements; |
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} |
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private function gatherSingleUseStatements(string $classContents): array |
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{ |
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$foundUseStatements = []; |
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preg_match_all(self::SINGLE_USE_STATEMENTS_REGEX, $classContents, $foundSingleUseStatements); |
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for ($useStatementIndex = 0; $useStatementIndex < count($foundSingleUseStatements[0]); $useStatementIndex++) { |
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$foundUseStatements[] = trim($foundSingleUseStatements[1][$useStatementIndex]); |
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} |
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return $foundUseStatements; |
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} |
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private function getDeclaringClassOrTrait(\ReflectionProperty $reflectionProperty): \ReflectionClass |
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{ |
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foreach ($reflectionProperty->getDeclaringClass()->getTraits() as $trait) { |
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foreach ($trait->getProperties() as $traitProperty) { |
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if ($traitProperty->getName() === $reflectionProperty->getName()) { |
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return $this->getDeclaringClassOrTrait($traitProperty); |
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} |
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} |
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} |
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return $reflectionProperty->getDeclaringClass(); |
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} |
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private function resolveType(string $typeHint, \ReflectionProperty $reflectionProperty): string |
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{ |
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if (!$this->hasGlobalNamespacePrefix($typeHint) && !$this->isPrimitiveType($typeHint)) { |
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$typeHint = $this->expandClassNameUsingUseStatements($typeHint, $this->getDeclaringClassOrTrait($reflectionProperty), $reflectionProperty); |
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} |
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return $typeHint; |
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} |
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} |
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schmittjoh /
serializer
Loading history...
If the size of the collection does not change during the iteration, it is generally a good practice to compute it beforehand, and not on each iteration: