FunctionLike: added getParameter() & hasParameter()

src/PhpGenerator/Traits/FunctionLike.php

@@ -85,6 +85,12 @@ public function getParameters(): array
 	}
 
 
+	public function getParameter(string $name): Parameter
+	{
+		return $this->parameters[$name] ?? throw new Nette\InvalidArgumentException("Parameter '$name' not found.");
+	}
+
+
 	/**
 	 * @param  string  $name without $
 	 */
@@ -109,6 +115,12 @@ public function removeParameter(string $name): static
 	}
 
 
+	public function hasParameter(string $name): bool
+	{
+		return isset($this->parameters[$name]);
+	}
+
+
 	public function setVariadic(bool $state = true): static
 	{
 		$this->variadic = $state;

tests/PhpGenerator/ClassType.phpt

@@ -124,8 +124,11 @@ Assert::false($m->isPublic());
 $method = $class->addMethod('show')
 	->setAbstract();
 
-$method->addParameter('foo');
+$p = $method->addParameter('foo');
+Assert::true($method->hasParameter('foo'));
+Assert::same($p, $method->getParameter('foo'));
 $method->removeParameter('foo');
+Assert::false($method->hasParameter('foo'));
 
 $method->addParameter('item');