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<?php
declare(strict_types=1);
namespace NunoMaduro\Larastan\Rules;
use Illuminate\Database\Eloquent\Model;
use PhpParser\Node;
use PhpParser\Node\Expr;
use PhpParser\Node\Expr\MethodCall;
use PhpParser\Node\Expr\StaticCall;
use PhpParser\Node\Identifier;
use PhpParser\Node\Name\FullyQualified;
use PHPStan\Analyser\Scope;
use PHPStan\Reflection\ReflectionProvider;
use PHPStan\Rules\Rule;
use PHPStan\Rules\RuleError;
use PHPStan\Rules\RuleErrorBuilder;
use PHPStan\Type\ObjectType;
/**
* Catches inefficient instantiation of models using Model::make().
*
* For example:
* User::make()
*
* It is functionally equivalent to simply use the constructor:
* new User()
*
* @implements Rule<MethodCall>
*/
class NoModelMakeRule implements Rule
{
/**
* @var \PHPStan\Reflection\ReflectionProvider
*/
protected $reflectionProvider;
/**
* @param ReflectionProvider $reflectionProvider
*/
public function __construct(ReflectionProvider $reflectionProvider)
{
$this->reflectionProvider = $reflectionProvider;
}
/**
* @return string
*/
public function getNodeType(): string
{
return StaticCall::class;
}
/**
* @param Node $node
* @param Scope $scope
* @return array<int, RuleError>
*/
public function processNode(Node $node, Scope $scope): array
{
/** @var StaticCall $node due to @see getNodeType() */
$name = $node->name;
if (! $name instanceof Identifier) {
return [];
}
if ($name->name !== 'make') {
return [];
}
if (! $this->isCalledOnModel($node, $scope)) {
return [];
}
return [
RuleErrorBuilder::message("Called 'Model::make()' which performs unnecessary work, use 'new Model()'.")
->identifier('rules.noModelMake')
->line($node->getLine())
->file($scope->getFile())
->build(),
];
}
/**
* Was the expression called on a Model instance?
*
* @param StaticCall $call
* @param Scope $scope
* @return bool
*/
protected function isCalledOnModel(StaticCall $call, Scope $scope): bool
{
$class = $call->class;
if ($class instanceof FullyQualified) {
$type = new ObjectType($class->toString());
} elseif ($class instanceof Expr) {
$type = $scope->getType($class);
if ($type->isClassStringType()->yes() && $type->getConstantStrings() !== []) {
$type = new ObjectType($type->getConstantStrings()[0]->getValue());
}
} else {
// TODO can we handle relative names, do they even occur here?
return false;
}
return (new ObjectType(Model::class))
->isSuperTypeOf($type)
->yes();
}
}