| 1: | <?php declare(strict_types = 1); |
| 2: | |
| 3: | namespace PHPStan\Reflection; |
| 4: | |
| 5: | use PHPStan\Reflection\Callables\CallableParametersAcceptor; |
| 6: | use PHPStan\Reflection\Php\ExtendedDummyParameter; |
| 7: | use PHPStan\TrinaryLogic; |
| 8: | use PHPStan\Type\ConditionalTypeForParameter; |
| 9: | use PHPStan\Type\ErrorType; |
| 10: | use PHPStan\Type\Generic\TemplateTypeMap; |
| 11: | use PHPStan\Type\Generic\TemplateTypeVarianceMap; |
| 12: | use PHPStan\Type\MixedType; |
| 13: | use PHPStan\Type\NeverType; |
| 14: | use PHPStan\Type\Type; |
| 15: | use PHPStan\Type\TypeCombinator; |
| 16: | use function array_key_exists; |
| 17: | use function array_last; |
| 18: | use function array_map; |
| 19: | use function array_merge; |
| 20: | use function count; |
| 21: | use function is_int; |
| 22: | |
| 23: | final class GenericParametersAcceptorResolver |
| 24: | { |
| 25: | |
| 26: | |
| 27: | |
| 28: | |
| 29: | |
| 30: | public static function resolve(array $argTypes, ParametersAcceptor $parametersAcceptor): ExtendedParametersAcceptor |
| 31: | { |
| 32: | $typeMap = TemplateTypeMap::createEmpty(); |
| 33: | $passedArgs = []; |
| 34: | |
| 35: | $parameters = $parametersAcceptor->getParameters(); |
| 36: | $namedArgTypes = []; |
| 37: | foreach ($argTypes as $i => $argType) { |
| 38: | if (is_int($i)) { |
| 39: | if (isset($parameters[$i])) { |
| 40: | $namedArgTypes[$parameters[$i]->getName()] = $argType; |
| 41: | continue; |
| 42: | } |
| 43: | if (count($parameters) > 0) { |
| 44: | $lastParameter = array_last($parameters); |
| 45: | if ($lastParameter->isVariadic()) { |
| 46: | $parameterName = $lastParameter->getName(); |
| 47: | if (array_key_exists($parameterName, $namedArgTypes)) { |
| 48: | $namedArgTypes[$parameterName] = TypeCombinator::union($namedArgTypes[$parameterName], $argType); |
| 49: | continue; |
| 50: | } |
| 51: | $namedArgTypes[$parameterName] = $argType; |
| 52: | } |
| 53: | } |
| 54: | continue; |
| 55: | } |
| 56: | |
| 57: | $namedArgTypes[$i] = $argType; |
| 58: | } |
| 59: | |
| 60: | foreach ($parameters as $param) { |
| 61: | if (isset($namedArgTypes[$param->getName()])) { |
| 62: | $argType = $namedArgTypes[$param->getName()]; |
| 63: | } elseif ($param->getDefaultValue() !== null) { |
| 64: | $argType = $param->getDefaultValue(); |
| 65: | } elseif ($param->isVariadic()) { |
| 66: | $argType = new NeverType(true); |
| 67: | } else { |
| 68: | continue; |
| 69: | } |
| 70: | |
| 71: | $paramType = $param->getType(); |
| 72: | $typeMap = $typeMap->union($paramType->inferTemplateTypes($argType)); |
| 73: | $passedArgs['$' . $param->getName()] = $argType; |
| 74: | } |
| 75: | |
| 76: | $returnType = $parametersAcceptor->getReturnType(); |
| 77: | if ( |
| 78: | $returnType instanceof ConditionalTypeForParameter |
| 79: | && !$returnType->isNegated() |
| 80: | && array_key_exists($returnType->getParameterName(), $passedArgs) |
| 81: | ) { |
| 82: | $paramType = $returnType->getTarget(); |
| 83: | $argType = $passedArgs[$returnType->getParameterName()]; |
| 84: | $typeMap = $typeMap->union($paramType->inferTemplateTypes($argType)); |
| 85: | } |
| 86: | |
| 87: | $resolvedTemplateTypeMap = new TemplateTypeMap(array_merge( |
| 88: | $parametersAcceptor->getTemplateTypeMap()->map(static fn (string $name, Type $type): Type => new ErrorType())->getTypes(), |
| 89: | $typeMap->getTypes(), |
| 90: | )); |
| 91: | |
| 92: | $originalParametersAcceptor = $parametersAcceptor; |
| 93: | |
| 94: | if (!$parametersAcceptor instanceof ExtendedParametersAcceptor) { |
| 95: | $parametersAcceptor = new ExtendedFunctionVariant( |
| 96: | $parametersAcceptor->getTemplateTypeMap(), |
| 97: | $parametersAcceptor->getResolvedTemplateTypeMap(), |
| 98: | array_map(static fn (ParameterReflection $parameter): ExtendedParameterReflection => new ExtendedDummyParameter( |
| 99: | $parameter->getName(), |
| 100: | $parameter->getType(), |
| 101: | $parameter->isOptional(), |
| 102: | $parameter->passedByReference(), |
| 103: | $parameter->isVariadic(), |
| 104: | $parameter->getDefaultValue(), |
| 105: | new MixedType(), |
| 106: | $parameter->getType(), |
| 107: | null, |
| 108: | TrinaryLogic::createMaybe(), |
| 109: | null, |
| 110: | [], |
| 111: | null, |
| 112: | ), $parameters), |
| 113: | $parametersAcceptor->isVariadic(), |
| 114: | $returnType, |
| 115: | $returnType, |
| 116: | new MixedType(), |
| 117: | TemplateTypeVarianceMap::createEmpty(), |
| 118: | ); |
| 119: | } |
| 120: | |
| 121: | $result = new ResolvedFunctionVariantWithOriginal( |
| 122: | $parametersAcceptor, |
| 123: | $resolvedTemplateTypeMap, |
| 124: | $parametersAcceptor->getCallSiteVarianceMap(), |
| 125: | $passedArgs, |
| 126: | ); |
| 127: | if ($originalParametersAcceptor instanceof CallableParametersAcceptor) { |
| 128: | return new ResolvedFunctionVariantWithCallable( |
| 129: | $result, |
| 130: | $originalParametersAcceptor->getThrowPoints(), |
| 131: | $originalParametersAcceptor->isPure(), |
| 132: | $originalParametersAcceptor->getImpurePoints(), |
| 133: | $originalParametersAcceptor->getInvalidateExpressions(), |
| 134: | $originalParametersAcceptor->getUsedVariables(), |
| 135: | $originalParametersAcceptor->acceptsNamedArguments(), |
| 136: | $originalParametersAcceptor->mustUseReturnValue(), |
| 137: | $originalParametersAcceptor->getAsserts(), |
| 138: | ); |
| 139: | } |
| 140: | |
| 141: | return $result; |
| 142: | } |
| 143: | |
| 144: | } |
| 145: | |