/**
* @return \Carrooi\Tokenizer\Matching\Matcher
*/
public function newInstance()
{
$parenthesisMatcher = new Matcher();
$parenthesisMatcher->select($parenthesisMatcher->expr()->notRequired(Lexer::T_WHITESPACE), $this->parenthesis());
$matcher = new Matcher();
$matcher->select(Lexer::T_NEW, Lexer::T_WHITESPACE, $matcher->expr()->anyOf($this->className(), Lexer::T_VARIABLE), $matcher->expr()->notRequired($parenthesisMatcher));
$matcher->map(new ResultMapping(function ($instance) {
if (!$instance) {
return null;
}
$parenthesis = null;
// with parenthesis
if (!Helpers::isValidToken($instance[count($instance) - 1])) {
$parenthesis = $instance[count($instance) - 1][1];
}
// ClassNameExpression or $variable
$name = is_array($instance[2]) ? $instance[2]['value'] : $instance[2];
$class = new AST\NewInstanceExpression(Helpers::flattenTokens($instance), $name);
$class->parenthesis = $parenthesis;
return $class;
}));
return $matcher;
}
/**
* @param array $result
* @param array $match
* @return array
*/
private function mergeMatchToResult(array $result, $match)
{
if (is_array($match) && Helpers::isValidToken($match)) {
$result[] = $match;
} elseif (is_array($match)) {
$result = array_merge($result, $match);
}
return $result;
}
/**
* @param \Carrooi\Tokenizer\Parsing\Lexer $lexer
* @return array|null
*/
private function doMatch(Lexer $lexer)
{
reset($this->select);
$result = [];
$initPosition = $lexer->position;
while (list($key, $select) = each($this->select)) {
if ($lexer->position === $initPosition) {
$match = $this->skipUntil($lexer, $select);
} else {
$match = $this->_matchToken($lexer, $select);
}
// not a first occurrence, reset searching from current position
if ($match === false) {
$result = [];
$select = reset($this->select);
next($this->select);
$match = $this->skipUntil($lexer, $select);
}
if ($match === false) {
return null;
} elseif ($match === true) {
$result[] = $lexer->lookahead;
} elseif ($match === null) {
$result[] = null;
} elseif (is_array($match)) {
if (Helpers::isValidToken($match)) {
$result[] = $match;
} else {
$result = array_merge($result, $match);
}
}
}
return count($result) ? $this->mapResult($result) : null;
}
