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https://github.com/rectorphp/rector.git
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727b9f46f0
bfa1891c50
[cleanup] Remove 73 unused public methods (#3245)
356 lines
14 KiB
PHP
356 lines
14 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\Core\PhpParser;
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use RectorPrefix202212\Nette\Utils\FileSystem;
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use PhpParser\Node;
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use PhpParser\Node\Expr;
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use PhpParser\Node\Expr\FuncCall;
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use PhpParser\Node\Expr\MethodCall;
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use PhpParser\Node\Expr\StaticCall;
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use PhpParser\Node\Param;
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use PhpParser\Node\Stmt;
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use PhpParser\Node\Stmt\Class_;
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use PhpParser\Node\Stmt\ClassLike;
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use PhpParser\Node\Stmt\ClassMethod;
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use PhpParser\Node\Stmt\Enum_;
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use PhpParser\Node\Stmt\Function_;
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use PhpParser\Node\Stmt\Interface_;
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use PhpParser\Node\Stmt\Property;
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use PhpParser\Node\Stmt\Trait_;
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use PHPStan\Analyser\Scope;
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use PHPStan\Reflection\ClassReflection;
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use PHPStan\Reflection\FunctionReflection;
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use PHPStan\Reflection\MethodReflection;
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use PHPStan\Reflection\Php\PhpPropertyReflection;
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use PHPStan\Reflection\ReflectionProvider;
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use PHPStan\Type\TypeWithClassName;
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use Rector\Core\PhpParser\Node\BetterNodeFinder;
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use Rector\Core\Reflection\ReflectionResolver;
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use Rector\Core\ValueObject\Application\File;
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use Rector\Core\ValueObject\MethodName;
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use Rector\NodeNameResolver\NodeNameResolver;
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use Rector\NodeTypeResolver\NodeScopeAndMetadataDecorator;
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use Rector\NodeTypeResolver\NodeTypeResolver;
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use Rector\PhpDocParser\PhpParser\SmartPhpParser;
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/**
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* The nodes provided by this resolver is for read-only analysis only!
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* They are not part of node tree processed by Rector, so any changes will not make effect in final printed file.
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*/
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final class AstResolver
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{
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/**
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* Parsing files is very heavy performance, so this will help to leverage it
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* The value can be also null, as the method might not exist in the class.
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*
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* @var array<class-string, array<string, ClassMethod|null>>
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*/
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private $classMethodsByClassAndMethod = [];
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/**
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* Parsing files is very heavy performance, so this will help to leverage it
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* The value can be also null, as the method might not exist in the class.
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*
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* @var array<string, Function_|null>>
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*/
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private $functionsByName = [];
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/**
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* @readonly
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* @var \Rector\PhpDocParser\PhpParser\SmartPhpParser
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*/
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private $smartPhpParser;
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/**
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* @readonly
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* @var \Rector\NodeTypeResolver\NodeScopeAndMetadataDecorator
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*/
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private $nodeScopeAndMetadataDecorator;
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/**
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* @readonly
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* @var \Rector\Core\PhpParser\Node\BetterNodeFinder
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*/
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private $betterNodeFinder;
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/**
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* @readonly
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* @var \Rector\NodeNameResolver\NodeNameResolver
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*/
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private $nodeNameResolver;
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/**
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* @readonly
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* @var \PHPStan\Reflection\ReflectionProvider
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*/
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private $reflectionProvider;
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/**
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* @readonly
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* @var \Rector\Core\Reflection\ReflectionResolver
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*/
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private $reflectionResolver;
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/**
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* @readonly
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* @var \Rector\NodeTypeResolver\NodeTypeResolver
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*/
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private $nodeTypeResolver;
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/**
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* @readonly
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* @var \Rector\Core\PhpParser\ClassLikeAstResolver
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*/
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private $classLikeAstResolver;
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public function __construct(SmartPhpParser $smartPhpParser, NodeScopeAndMetadataDecorator $nodeScopeAndMetadataDecorator, BetterNodeFinder $betterNodeFinder, NodeNameResolver $nodeNameResolver, ReflectionProvider $reflectionProvider, ReflectionResolver $reflectionResolver, NodeTypeResolver $nodeTypeResolver, \Rector\Core\PhpParser\ClassLikeAstResolver $classLikeAstResolver)
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{
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$this->smartPhpParser = $smartPhpParser;
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$this->nodeScopeAndMetadataDecorator = $nodeScopeAndMetadataDecorator;
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$this->betterNodeFinder = $betterNodeFinder;
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$this->nodeNameResolver = $nodeNameResolver;
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$this->reflectionProvider = $reflectionProvider;
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$this->reflectionResolver = $reflectionResolver;
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$this->nodeTypeResolver = $nodeTypeResolver;
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$this->classLikeAstResolver = $classLikeAstResolver;
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}
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/**
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* @return \PhpParser\Node\Stmt\Class_|\PhpParser\Node\Stmt\Trait_|\PhpParser\Node\Stmt\Interface_|\PhpParser\Node\Stmt\Enum_|null
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*/
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public function resolveClassFromName(string $className)
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{
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if (!$this->reflectionProvider->hasClass($className)) {
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return null;
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}
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$classReflection = $this->reflectionProvider->getClass($className);
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return $this->resolveClassFromClassReflection($classReflection);
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}
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public function resolveClassMethodFromMethodReflection(MethodReflection $methodReflection) : ?ClassMethod
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{
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$classReflection = $methodReflection->getDeclaringClass();
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$classLikeName = $classReflection->getName();
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$methodName = $methodReflection->getName();
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if (isset($this->classMethodsByClassAndMethod[$classLikeName][$methodName])) {
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return $this->classMethodsByClassAndMethod[$classLikeName][$methodName];
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}
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// saved as null data
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if (\array_key_exists($classLikeName, $this->classMethodsByClassAndMethod) && \array_key_exists($methodName, $this->classMethodsByClassAndMethod[$classLikeName])) {
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return null;
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}
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$fileName = $classReflection->getFileName();
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// probably native PHP method → un-parseable
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if ($fileName === null) {
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return null;
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}
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$nodes = $this->parseFileNameToDecoratedNodes($fileName);
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if ($nodes === null) {
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return null;
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}
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/** @var ClassLike[] $classLikes */
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$classLikes = $this->betterNodeFinder->findInstanceOf($nodes, ClassLike::class);
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foreach ($classLikes as $classLike) {
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if (!$this->nodeNameResolver->isName($classLike, $classLikeName)) {
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continue;
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}
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$classMethod = $classLike->getMethod($methodName);
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if (!$classMethod instanceof ClassMethod) {
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continue;
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}
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$this->classMethodsByClassAndMethod[$classLikeName][$methodName] = $classMethod;
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return $classMethod;
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}
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// avoids looking for a class in a file where is not present
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$this->classMethodsByClassAndMethod[$classLikeName][$methodName] = null;
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return null;
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}
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/**
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* @param \PhpParser\Node\Expr\FuncCall|\PhpParser\Node\Expr\StaticCall|\PhpParser\Node\Expr\MethodCall $call
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* @return \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|null
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*/
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public function resolveClassMethodOrFunctionFromCall($call, Scope $scope)
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{
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if ($call instanceof FuncCall) {
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return $this->resolveFunctionFromFuncCall($call, $scope);
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}
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return $this->resolveClassMethodFromCall($call);
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}
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public function resolveFunctionFromFunctionReflection(FunctionReflection $functionReflection) : ?Function_
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{
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$functionName = $functionReflection->getName();
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if (isset($this->functionsByName[$functionName])) {
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return $this->functionsByName[$functionName];
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}
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// saved as null data
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if (\array_key_exists($functionName, $this->functionsByName)) {
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return null;
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}
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$fileName = $functionReflection->getFileName();
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if ($fileName === null) {
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return null;
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}
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$nodes = $this->parseFileNameToDecoratedNodes($fileName);
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if ($nodes === null) {
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return null;
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}
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/** @var Function_[] $functions */
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$functions = $this->betterNodeFinder->findInstanceOf($nodes, Function_::class);
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foreach ($functions as $function) {
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if (!$this->nodeNameResolver->isName($function, $functionName)) {
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continue;
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}
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// to avoid parsing missing function again
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$this->functionsByName[$functionName] = $function;
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return $function;
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}
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// to avoid parsing missing function again
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$this->functionsByName[$functionName] = null;
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return null;
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}
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/**
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* @param class-string $className
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*/
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public function resolveClassMethod(string $className, string $methodName) : ?ClassMethod
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{
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$methodReflection = $this->reflectionResolver->resolveMethodReflection($className, $methodName, null);
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if (!$methodReflection instanceof MethodReflection) {
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return null;
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}
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$classMethod = $this->resolveClassMethodFromMethodReflection($methodReflection);
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if (!$classMethod instanceof ClassMethod) {
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return $this->locateClassMethodInTrait($methodName, $methodReflection);
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}
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return $classMethod;
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}
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/**
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* @param \PhpParser\Node\Expr\MethodCall|\PhpParser\Node\Expr\StaticCall $call
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*/
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public function resolveClassMethodFromCall($call) : ?ClassMethod
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{
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if ($call instanceof MethodCall) {
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$callerStaticType = $this->nodeTypeResolver->getType($call->var);
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} else {
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$callerStaticType = $this->nodeTypeResolver->getType($call->class);
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}
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if (!$callerStaticType instanceof TypeWithClassName) {
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return null;
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}
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$methodName = $this->nodeNameResolver->getName($call->name);
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if ($methodName === null) {
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return null;
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}
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return $this->resolveClassMethod($callerStaticType->getClassName(), $methodName);
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}
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/**
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* @return \PhpParser\Node\Stmt\Trait_|\PhpParser\Node\Stmt\Class_|\PhpParser\Node\Stmt\Interface_|\PhpParser\Node\Stmt\Enum_|null
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*/
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public function resolveClassFromClassReflection(ClassReflection $classReflection)
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{
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return $this->classLikeAstResolver->resolveClassFromClassReflection($classReflection);
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}
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/**
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* @return Trait_[]
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*/
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public function parseClassReflectionTraits(ClassReflection $classReflection) : array
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{
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/** @var ClassReflection[] $classLikes */
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$classLikes = $classReflection->getTraits(\true);
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$traits = [];
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foreach ($classLikes as $classLike) {
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$fileName = $classLike->getFileName();
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if ($fileName === null) {
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continue;
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}
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$nodes = $this->parseFileNameToDecoratedNodes($fileName);
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if ($nodes === null) {
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continue;
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}
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/** @var Trait_|null $trait */
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$trait = $this->betterNodeFinder->findFirst($nodes, function (Node $node) use($classLike) : bool {
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return $node instanceof Trait_ && $this->nodeNameResolver->isName($node, $classLike->getName());
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});
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if (!$trait instanceof Trait_) {
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continue;
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}
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$traits[] = $trait;
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}
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return $traits;
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}
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/**
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* @return \PhpParser\Node\Stmt\Property|\PhpParser\Node\Param|null
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*/
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public function resolvePropertyFromPropertyReflection(PhpPropertyReflection $phpPropertyReflection)
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{
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$classReflection = $phpPropertyReflection->getDeclaringClass();
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$fileName = $classReflection->getFileName();
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if ($fileName === null) {
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return null;
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}
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$nodes = $this->parseFileNameToDecoratedNodes($fileName);
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if ($nodes === null) {
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return null;
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}
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$nativeReflectionProperty = $phpPropertyReflection->getNativeReflection();
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$desiredPropertyName = $nativeReflectionProperty->getName();
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/** @var Property[] $properties */
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$properties = $this->betterNodeFinder->findInstanceOf($nodes, Property::class);
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foreach ($properties as $property) {
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if ($this->nodeNameResolver->isName($property, $desiredPropertyName)) {
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return $property;
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}
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}
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// promoted property
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return $this->findPromotedPropertyByName($nodes, $desiredPropertyName);
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}
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private function locateClassMethodInTrait(string $methodName, MethodReflection $methodReflection) : ?ClassMethod
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{
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$classReflection = $methodReflection->getDeclaringClass();
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$traits = $this->parseClassReflectionTraits($classReflection);
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/** @var ClassMethod|null $classMethod */
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$classMethod = $this->betterNodeFinder->findFirst($traits, function (Node $node) use($methodName) : bool {
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return $node instanceof ClassMethod && $this->nodeNameResolver->isName($node, $methodName);
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});
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$this->classMethodsByClassAndMethod[$classReflection->getName()][$methodName] = $classMethod;
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if ($classMethod instanceof ClassMethod) {
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return $classMethod;
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}
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return null;
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}
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/**
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* @return Stmt[]|null
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*/
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private function parseFileNameToDecoratedNodes(string $fileName) : ?array
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{
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$stmts = $this->smartPhpParser->parseFile($fileName);
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if ($stmts === []) {
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return null;
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}
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$file = new File($fileName, FileSystem::read($fileName));
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return $this->nodeScopeAndMetadataDecorator->decorateNodesFromFile($file, $stmts);
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}
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/**
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* @param Stmt[] $stmts
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*/
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private function findPromotedPropertyByName(array $stmts, string $desiredPropertyName) : ?Param
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{
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$class = $this->betterNodeFinder->findFirstInstanceOf($stmts, Class_::class);
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if (!$class instanceof Class_) {
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return null;
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}
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$constructClassMethod = $class->getMethod(MethodName::CONSTRUCT);
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if (!$constructClassMethod instanceof ClassMethod) {
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return null;
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}
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foreach ($constructClassMethod->getParams() as $param) {
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if ($param->flags === 0) {
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continue;
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}
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if ($this->nodeNameResolver->isName($param, $desiredPropertyName)) {
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return $param;
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}
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}
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return null;
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}
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private function resolveFunctionFromFuncCall(FuncCall $funcCall, Scope $scope) : ?Function_
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{
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if ($funcCall->name instanceof Expr) {
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return null;
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}
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if (!$this->reflectionProvider->hasFunction($funcCall->name, $scope)) {
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return null;
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}
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$functionReflection = $this->reflectionProvider->getFunction($funcCall->name, $scope);
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return $this->resolveFunctionFromFunctionReflection($functionReflection);
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}
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}
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