protected function parseExpressionVersion56()
{
$this->consumeComments();
$nextTokenType = $this->tokenizer->peek();
switch ($nextTokenType) {
case Tokens::T_POW:
$token = $this->consumeToken($nextTokenType);
$expr = $this->builder->buildAstExpression($token->image);
$expr->configureLinesAndColumns($token->startLine, $token->endLine, $token->startColumn, $token->endColumn);
return $expr;
}
}