*/ private $node_types; /** @var SplObjectStorage>>|null> */ private $node_assertions; /** @var SplObjectStorage> */ private $node_if_true_assertions; /** @var SplObjectStorage> */ private $node_if_false_assertions; /** @var bool */ public $cache_assertions = true; public function __construct() { /** @psalm-suppress PropertyTypeCoercion */ $this->node_types = new SplObjectStorage(); /** @psalm-suppress PropertyTypeCoercion */ $this->node_assertions = new SplObjectStorage(); /** @psalm-suppress PropertyTypeCoercion */ $this->node_if_true_assertions = new SplObjectStorage(); /** @psalm-suppress PropertyTypeCoercion */ $this->node_if_false_assertions = new SplObjectStorage(); } /** * @param PhpParser\Node\Expr|PhpParser\Node\Name|PhpParser\Node\Stmt\Return_ $node */ public function setType($node, Union $type) : void { $this->node_types[$node] = $type; } /** * @param PhpParser\Node\Expr|PhpParser\Node\Name|PhpParser\Node\Stmt\Return_ $node */ public function getType($node) : ?Union { return $this->node_types[$node] ?? null; } /** * @param array>>|null $assertions */ public function setAssertions(PhpParser\Node\Expr $node, ?array $assertions) : void { if (!$this->cache_assertions) { return; } $this->node_assertions[$node] = $assertions; } /** * @return array>>|null */ public function getAssertions(PhpParser\Node\Expr $node) : ?array { if (!$this->cache_assertions) { return null; } return $this->node_assertions[$node] ?? null; } /** * @param PhpParser\Node\Expr\FuncCall|PhpParser\Node\Expr\MethodCall|PhpParser\Node\Expr\StaticCall $node * @param array $assertions */ public function setIfTrueAssertions($node, array $assertions) : void { $this->node_if_true_assertions[$node] = $assertions; } /** * @param PhpParser\Node\Expr\FuncCall|PhpParser\Node\Expr\MethodCall|PhpParser\Node\Expr\StaticCall $node * @return array|null */ public function getIfTrueAssertions($node) : ?array { return $this->node_if_true_assertions[$node] ?? null; } /** * @param PhpParser\Node\Expr\FuncCall|PhpParser\Node\Expr\MethodCall|PhpParser\Node\Expr\StaticCall $node * @param array $assertions */ public function setIfFalseAssertions($node, array $assertions) : void { $this->node_if_false_assertions[$node] = $assertions; } /** * @param PhpParser\Node\Expr\FuncCall|PhpParser\Node\Expr\MethodCall|PhpParser\Node\Expr\StaticCall $node * @return array|null */ public function getIfFalseAssertions($node) : ?array { return $this->node_if_false_assertions[$node] ?? null; } public function isPureCompatible(PhpParser\Node\Expr $node) : bool { $node_type = self::getType($node); return ($node_type && $node_type->reference_free) || isset($node->pure); } public function clearNodeOfTypeAndAssertions(PhpParser\Node\Expr $node) : void { unset($this->node_types[$node], $this->node_assertions[$node]); } }