/**
* @param boolean $is_abstract
* @return $this
*/
public function setAbstract($is_abstract)
{
if ($is_abstract) {
if (!isset($this->abstract)) {
$this->abstract = Token::_abstract();
$this->prepend([$this->abstract, Token::space()]);
$this->setFinal(FALSE);
// Remove method body since abstract method doesn't have one.
$this->getBody()->previous(Filter::isInstanceOf('\\Pharborist\\WhitespaceNode'))->remove();
$this->getBody()->replaceWith(Token::semiColon());
$this->body = NULL;
}
} else {
if (isset($this->abstract)) {
// Remove whitespace.
$this->abstract->next()->remove();
// Remove abstract.
$this->abstract->remove();
// Add empty body.
$body = new StatementBlockNode();
$body->append([Token::openBrace(), Token::closeBrace()]);
$this->lastChild()->replaceWith($body);
$this->lastChild()->before(Token::space());
$this->body = $body;
}
}
return $this;
}
/**
* @param boolean $is_abstract
* @return $this
*/
public function setAbstract($is_abstract)
{
if ($is_abstract) {
if (!isset($this->abstract)) {
$this->abstract = Token::_abstract();
$this->prepend([$this->abstract, Token::space()]);
$this->setFinal(FALSE);
}
} else {
if (isset($this->abstract)) {
// Remove whitespace.
$this->abstract->next()->remove();
// Remove abstract.
$this->abstract->remove();
}
}
return $this;
}