private function _checkEmptyBlock() {
		// If the next valid token is } then the statement is empty.
		if ($this->_isActive('checkEmptyBlock') && $this->_currentStatement) {

			if ($this->tokenizer->checkNextValidToken(T_BRACES_CLOSE)) {
				$msg = $this->_getMessage('EMPTY_BLOCK', $this->_currentStatement);
				$this->_writeError('checkEmptyBlock', $msg);
			}
		}
	}