nodeNameResolver = $nodeNameResolver; $this->reflectionProvider = $reflectionProvider; } public function detect(FuncCall $funcCall, Scope $scope) : bool { $funcCallName = $this->nodeNameResolver->getName($funcCall); if ($funcCallName === null) { return \false; } $name = new Name($funcCallName); $hasFunction = $this->reflectionProvider->hasFunction($name, $scope); if (!$hasFunction) { return \false; } $functionReflection = $this->reflectionProvider->getFunction($name, $scope); if (!$functionReflection instanceof NativeFunctionReflection) { return \false; } // yes() and maybe() may have side effect return $functionReflection->hasSideEffects()->no(); } }