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<?php declare(strict_types=1);
namespace PhpParser\Node;
use PhpParser\Modifiers;
use PhpParser\Node\Expr\Assign;
use PhpParser\Node\Expr\PropertyFetch;
use PhpParser\Node\Expr\Variable;
use PhpParser\Node\Stmt\Expression;
use PhpParser\Node\Stmt\Return_;
use PhpParser\NodeAbstract;
class PropertyHook extends NodeAbstract implements FunctionLike {
/** @var AttributeGroup[] PHP attribute groups */
public array $attrGroups;
/** @var int Modifiers */
public int $flags;
/** @var bool Whether hook returns by reference */
public bool $byRef;
/** @var Identifier Hook name */
public Identifier $name;
/** @var Param[] Parameters */
public array $params;
/** @var null|Expr|Stmt[] Hook body */
public $body;
/**
* Constructs a property hook node.
*
* @param string|Identifier $name Hook name
* @param null|Expr|Stmt[] $body Hook body
* @param array{
* flags?: int,
* byRef?: bool,
* params?: Param[],
* attrGroups?: AttributeGroup[],
* } $subNodes Array of the following optional subnodes:
* 'flags => 0 : Flags
* 'byRef' => false : Whether hook returns by reference
* 'params' => array(): Parameters
* 'attrGroups' => array(): PHP attribute groups
* @param array<string, mixed> $attributes Additional attributes
*/
public function __construct($name, $body, array $subNodes = [], array $attributes = []) {
$this->attributes = $attributes;
$this->name = \is_string($name) ? new Identifier($name) : $name;
$this->body = $body;
$this->flags = $subNodes['flags'] ?? 0;
$this->byRef = $subNodes['byRef'] ?? false;
$this->params = $subNodes['params'] ?? [];
$this->attrGroups = $subNodes['attrGroups'] ?? [];
}
public function returnsByRef(): bool {
return $this->byRef;
}
public function getParams(): array {
return $this->params;
}
public function getReturnType() {
return null;
}
/**
* Whether the property hook is final.
*/
public function isFinal(): bool {
return (bool) ($this->flags & Modifiers::FINAL);
}
public function getStmts(): ?array {
if ($this->body instanceof Expr) {
$name = $this->name->toLowerString();
if ($name === 'get') {
return [new Return_($this->body)];
}
if ($name === 'set') {
if (!$this->hasAttribute('propertyName')) {
throw new \LogicException(
'Can only use getStmts() on a "set" hook if the "propertyName" attribute is set');
}
$propName = $this->getAttribute('propertyName');
$prop = new PropertyFetch(new Variable('this'), (string) $propName);
return [new Expression(new Assign($prop, $this->body))];
}
throw new \LogicException('Unknown property hook "' . $name . '"');
}
return $this->body;
}
public function getAttrGroups(): array {
return $this->attrGroups;
}
public function getType(): string {
return 'PropertyHook';
}
public function getSubNodeNames(): array {
return ['attrGroups', 'flags', 'byRef', 'name', 'params', 'body'];
}
}
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