/**
* Insert argument before argument at index.
*
* @param LexicalVariableNode $variable
* The lexical variable to insert.
* @param int $index
* Position to insert argument at.
* @throws \OutOfBoundsException
* Index out of bounds.
*
* @return $this
*/
public function insertLexicalVariable(LexicalVariableNode $variable, $index)
{
if ($index < 0) {
throw new \OutOfBoundsException('index out of bounds');
}
if (!$this->hasLexicalVariables() && $index !== 0) {
throw new \OutOfBoundsException('index out of bounds');
}
$this->createLexicalVariables();
$this->lexicalVariables->insertItem($variable, $index);
}
/**
* Insert parameter before parameter at index.
*
* @param ParameterNode $parameter
* @param int $index
* @throws \OutOfBoundsException
* Index out of bounds.
* @return $this
*/
public function insertParameter(ParameterNode $parameter, $index)
{
$this->parameters->insertItem($parameter, $index);
return $this;
}
