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Part of Broker extracted into NativeFunctionReflectionProvider
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105 changes: 105 additions & 0 deletions
105
src/Reflection/SignatureMap/NativeFunctionReflectionProvider.php
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| <?php declare(strict_types = 1); | ||
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| namespace PHPStan\Reflection\SignatureMap; | ||
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| use PHPStan\Reflection\FunctionVariant; | ||
| use PHPStan\Reflection\Native\NativeFunctionReflection; | ||
| use PHPStan\Reflection\Native\NativeParameterReflection; | ||
| use PHPStan\TrinaryLogic; | ||
| use PHPStan\Type\BooleanType; | ||
| use PHPStan\Type\FloatType; | ||
| use PHPStan\Type\Generic\TemplateTypeMap; | ||
| use PHPStan\Type\IntegerType; | ||
| use PHPStan\Type\NullType; | ||
| use PHPStan\Type\StringAlwaysAcceptingObjectWithToStringType; | ||
| use PHPStan\Type\TypeUtils; | ||
| use PHPStan\Type\UnionType; | ||
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| class NativeFunctionReflectionProvider | ||
| { | ||
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| /** @var NativeFunctionReflection[] */ | ||
| private static $functionMap = []; | ||
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| /** @var \PHPStan\Reflection\SignatureMap\SignatureMapProvider */ | ||
| private $signatureMapProvider; | ||
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| public function __construct(SignatureMapProvider $signatureMapProvider) | ||
| { | ||
| $this->signatureMapProvider = $signatureMapProvider; | ||
| } | ||
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| public function findFunctionReflection(string $functionName): ?NativeFunctionReflection | ||
| { | ||
| $lowerCasedFunctionName = strtolower($functionName); | ||
| if (isset(self::$functionMap[$lowerCasedFunctionName])) { | ||
| return self::$functionMap[$lowerCasedFunctionName]; | ||
| } | ||
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| if (!$this->signatureMapProvider->hasFunctionSignature($lowerCasedFunctionName)) { | ||
| return null; | ||
| } | ||
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| $variantName = $lowerCasedFunctionName; | ||
| $variants = []; | ||
| $i = 0; | ||
| while ($this->signatureMapProvider->hasFunctionSignature($variantName)) { | ||
| $functionSignature = $this->signatureMapProvider->getFunctionSignature($variantName, null); | ||
| $returnType = $functionSignature->getReturnType(); | ||
| if ($lowerCasedFunctionName === 'pow') { | ||
| $returnType = TypeUtils::toBenevolentUnion($returnType); | ||
| } | ||
| $variants[] = new FunctionVariant( | ||
| TemplateTypeMap::createEmpty(), | ||
| null, | ||
| array_map(static function (ParameterSignature $parameterSignature) use ($lowerCasedFunctionName): NativeParameterReflection { | ||
| $type = $parameterSignature->getType(); | ||
| if ( | ||
| $parameterSignature->getName() === 'args' | ||
| && ( | ||
| $lowerCasedFunctionName === 'printf' | ||
| || $lowerCasedFunctionName === 'sprintf' | ||
| ) | ||
| ) { | ||
| $type = new UnionType([ | ||
| new StringAlwaysAcceptingObjectWithToStringType(), | ||
| new IntegerType(), | ||
| new FloatType(), | ||
| new NullType(), | ||
| new BooleanType(), | ||
| ]); | ||
| } | ||
| return new NativeParameterReflection( | ||
| $parameterSignature->getName(), | ||
| $parameterSignature->isOptional(), | ||
| $type, | ||
| $parameterSignature->passedByReference(), | ||
| $parameterSignature->isVariadic(), | ||
| null | ||
| ); | ||
| }, $functionSignature->getParameters()), | ||
| $functionSignature->isVariadic(), | ||
| $returnType | ||
| ); | ||
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| $i++; | ||
| $variantName = sprintf($lowerCasedFunctionName . '\'' . $i); | ||
| } | ||
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| if ($this->signatureMapProvider->hasFunctionMetadata($lowerCasedFunctionName)) { | ||
| $hasSideEffects = TrinaryLogic::createFromBoolean($this->signatureMapProvider->getFunctionMetadata($lowerCasedFunctionName)['hasSideEffects']); | ||
| } else { | ||
| $hasSideEffects = TrinaryLogic::createMaybe(); | ||
| } | ||
| $functionReflection = new NativeFunctionReflection( | ||
| $lowerCasedFunctionName, | ||
| $variants, | ||
| null, | ||
| $hasSideEffects | ||
| ); | ||
| self::$functionMap[$lowerCasedFunctionName] = $functionReflection; | ||
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| return $functionReflection; | ||
| } | ||
|
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| } |
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