69171c28f0
This patch fixes a use-after-free error in rename_column_in_where_clause(), where we were creating a boost adaptor on an rvalue. Signed-off-by: Duarte Nunes <duarte@scylladb.com>
85 lines
3.1 KiB
C++
85 lines
3.1 KiB
C++
/*
|
|
* Copyright (C) 2016 ScyllaDB
|
|
*
|
|
* Modified by ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* This file is part of Scylla.
|
|
*
|
|
* Scylla is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* Scylla is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <vector>
|
|
|
|
#include <boost/algorithm/string/join.hpp>
|
|
#include <boost/range/adaptor/transformed.hpp>
|
|
|
|
#include <seastar/core/sstring.hh>
|
|
|
|
#include "cql3/column_identifier.hh"
|
|
#include "cql3/CqlParser.hpp"
|
|
#include "cql3/error_collector.hh"
|
|
#include "cql3/relation.hh"
|
|
#include "cql3/statements/raw/select_statement.hh"
|
|
|
|
namespace cql3 {
|
|
|
|
namespace util {
|
|
|
|
template <typename Func, typename Result = std::result_of_t<Func(cql3_parser::CqlParser&)>>
|
|
Result do_with_parser(const sstring_view& cql, Func&& f) {
|
|
cql3_parser::CqlLexer::collector_type lexer_error_collector(cql);
|
|
cql3_parser::CqlParser::collector_type parser_error_collector(cql);
|
|
cql3_parser::CqlLexer::InputStreamType input{reinterpret_cast<const ANTLR_UINT8*>(cql.begin()), ANTLR_ENC_UTF8, static_cast<ANTLR_UINT32>(cql.size()), nullptr};
|
|
cql3_parser::CqlLexer lexer{&input};
|
|
lexer.set_error_listener(lexer_error_collector);
|
|
cql3_parser::CqlParser::TokenStreamType tstream(ANTLR_SIZE_HINT, lexer.get_tokSource());
|
|
cql3_parser::CqlParser parser{&tstream};
|
|
parser.set_error_listener(parser_error_collector);
|
|
auto result = f(parser);
|
|
lexer_error_collector.throw_first_syntax_error();
|
|
parser_error_collector.throw_first_syntax_error();
|
|
return result;
|
|
}
|
|
|
|
template<typename Range> // Range<cql3::relation_ptr>
|
|
sstring relations_to_where_clause(Range&& relations) {
|
|
auto expressions = relations | boost::adaptors::transformed(std::mem_fn(&relation::to_string));
|
|
return boost::algorithm::join(expressions, " AND ");
|
|
}
|
|
|
|
static std::vector<relation_ptr> where_clause_to_relations(const sstring_view& where_clause) {
|
|
return do_with_parser(where_clause, std::mem_fn(&cql3_parser::CqlParser::whereClause));
|
|
}
|
|
|
|
inline sstring rename_column_in_where_clause(const sstring_view& where_clause, column_identifier::raw from, column_identifier::raw to) {
|
|
auto relations = where_clause_to_relations(where_clause);
|
|
auto new_relations = relations | boost::adaptors::transformed([&] (auto&& rel) {
|
|
return rel->maybe_rename_identifier(from, to);
|
|
});
|
|
return relations_to_where_clause(std::move(new_relations));
|
|
}
|
|
|
|
shared_ptr<cql3::statements::raw::select_statement> build_select_statement(
|
|
const sstring_view& cf_name,
|
|
const sstring_view& where_clause,
|
|
std::vector<sstring_view> included_columns);
|
|
|
|
} // namespace util
|
|
|
|
} // namespace cql3
|