| 1: | <?php declare(strict_types = 1); |
| 2: | |
| 3: | namespace PHPStan\Type; |
| 4: | |
| 5: | use Closure; |
| 6: | use PhpParser\Parser; |
| 7: | use PHPStan\BetterReflection\Identifier\IdentifierType; |
| 8: | use PHPStan\BetterReflection\Reflection\Adapter\ReflectionParameter; |
| 9: | use PHPStan\BetterReflection\Reflection\Adapter\ReflectionType; |
| 10: | use PHPStan\BetterReflection\Reflection\ReflectionParameter as BetterReflectionParameter; |
| 11: | use PHPStan\BetterReflection\Reflector\Reflector; |
| 12: | use PHPStan\BetterReflection\SourceLocator\Ast\FindReflectionsInTree; |
| 13: | use PHPStan\BetterReflection\SourceLocator\Ast\Strategy\NodeToReflection; |
| 14: | use PHPStan\BetterReflection\SourceLocator\Located\LocatedSource; |
| 15: | use PHPStan\BetterReflection\SourceLocator\SourceStubber\ReflectionSourceStubber; |
| 16: | use PHPStan\Reflection\InitializerExprContext; |
| 17: | use PHPStan\Reflection\InitializerExprTypeResolver; |
| 18: | use PHPStan\Reflection\ParameterReflection; |
| 19: | use PHPStan\Reflection\PassedByReference; |
| 20: | use PHPStan\ShouldNotHappenException; |
| 21: | use ReflectionFunction; |
| 22: | use function array_map; |
| 23: | use function count; |
| 24: | use function str_replace; |
| 25: | |
| 26: | |
| 27: | class ClosureTypeFactory |
| 28: | { |
| 29: | |
| 30: | public function __construct( |
| 31: | private InitializerExprTypeResolver $initializerExprTypeResolver, |
| 32: | private ReflectionSourceStubber $reflectionSourceStubber, |
| 33: | private Reflector $reflector, |
| 34: | private Parser $parser, |
| 35: | ) |
| 36: | { |
| 37: | } |
| 38: | |
| 39: | |
| 40: | |
| 41: | |
| 42: | public function fromClosureObject(Closure $closure): ClosureType |
| 43: | { |
| 44: | $stubData = $this->reflectionSourceStubber->generateFunctionStubFromReflection(new ReflectionFunction($closure)); |
| 45: | if ($stubData === null) { |
| 46: | throw new ShouldNotHappenException('Closure reflection not found.'); |
| 47: | } |
| 48: | $source = $stubData->getStub(); |
| 49: | $source = str_replace('{closure}', 'foo', $source); |
| 50: | $locatedSource = new LocatedSource($source, '{closure}', $stubData->getFileName()); |
| 51: | $find = new FindReflectionsInTree(new NodeToReflection()); |
| 52: | $ast = $this->parser->parse($locatedSource->getSource()); |
| 53: | if ($ast === null) { |
| 54: | throw new ShouldNotHappenException('Closure reflection not found.'); |
| 55: | } |
| 56: | |
| 57: | |
| 58: | $reflections = $find($this->reflector, $ast, new IdentifierType(IdentifierType::IDENTIFIER_FUNCTION), $locatedSource); |
| 59: | if (count($reflections) !== 1) { |
| 60: | throw new ShouldNotHappenException('Closure reflection not found.'); |
| 61: | } |
| 62: | |
| 63: | $betterReflectionFunction = $reflections[0]; |
| 64: | |
| 65: | $parameters = array_map(fn (BetterReflectionParameter $parameter) => new class($parameter, $this->initializerExprTypeResolver) implements ParameterReflection { |
| 66: | |
| 67: | public function __construct(private BetterReflectionParameter $reflection, private InitializerExprTypeResolver $initializerExprTypeResolver) |
| 68: | { |
| 69: | } |
| 70: | |
| 71: | public function getName(): string |
| 72: | { |
| 73: | return $this->reflection->getName(); |
| 74: | } |
| 75: | |
| 76: | public function isOptional(): bool |
| 77: | { |
| 78: | return $this->reflection->isOptional(); |
| 79: | } |
| 80: | |
| 81: | public function getType(): Type |
| 82: | { |
| 83: | return TypehintHelper::decideTypeFromReflection(ReflectionType::fromTypeOrNull($this->reflection->getType()), null, null, $this->reflection->isVariadic()); |
| 84: | } |
| 85: | |
| 86: | public function passedByReference(): PassedByReference |
| 87: | { |
| 88: | return $this->reflection->isPassedByReference() |
| 89: | ? PassedByReference::createCreatesNewVariable() |
| 90: | : PassedByReference::createNo(); |
| 91: | } |
| 92: | |
| 93: | public function isVariadic(): bool |
| 94: | { |
| 95: | return $this->reflection->isVariadic(); |
| 96: | } |
| 97: | |
| 98: | public function getDefaultValue(): ?Type |
| 99: | { |
| 100: | if (! $this->reflection->isDefaultValueAvailable()) { |
| 101: | return null; |
| 102: | } |
| 103: | |
| 104: | $defaultExpr = $this->reflection->getDefaultValueExpression(); |
| 105: | if ($defaultExpr === null) { |
| 106: | return null; |
| 107: | } |
| 108: | |
| 109: | return $this->initializerExprTypeResolver->getType($defaultExpr, InitializerExprContext::fromReflectionParameter(new ReflectionParameter($this->reflection))); |
| 110: | } |
| 111: | |
| 112: | }, $betterReflectionFunction->getParameters()); |
| 113: | |
| 114: | return new ClosureType($parameters, TypehintHelper::decideTypeFromReflection(ReflectionType::fromTypeOrNull($betterReflectionFunction->getReturnType())), $betterReflectionFunction->isVariadic()); |
| 115: | } |
| 116: | |
| 117: | } |
| 118: | |