polardbxengine/plugin/polarx_rpc/tests/driver/processor/script_stack.h

66 lines
2.3 KiB
C++

/*
* Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2.0,
* as published by the Free Software Foundation.
*
* This program is also distributed with certain software (including
* but not limited to OpenSSL) that is licensed under separate terms,
* as designated in a particular file or component or in included license
* documentation. The authors of MySQL hereby grant you an additional
* permission to link the program and your derivative works with the
* separately licensed software that they have included with MySQL.
*
* This program 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, version 2.0, for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef PLUGIN_X_TESTS_DRIVER_PROCESSOR_SCRIPT_STACK_H_
#define PLUGIN_X_TESTS_DRIVER_PROCESSOR_SCRIPT_STACK_H_
#include <stdio.h>
#include <list>
#include <ostream>
#include <string>
class Script_stack {
public:
struct Frame {
int m_line_number;
std::string m_context;
};
using Stack = std::list<Frame>;
using const_reverse_iterator = Stack::const_reverse_iterator;
public:
const_reverse_iterator rbegin() const { return m_stack.rbegin(); }
const_reverse_iterator rend() const { return m_stack.rend(); }
Stack::reference front() { return m_stack.front(); }
void push(const Frame &frame) { return m_stack.push_front(frame); }
void pop() { return m_stack.pop_front(); }
private:
Stack m_stack;
};
inline std::ostream &operator<<(std::ostream &os, const Script_stack &stack) {
std::string context;
for (auto it = stack.rbegin(); it != stack.rend(); ++it) {
char tmp[1024];
snprintf(tmp, sizeof(tmp), "in %s, line %i:", it->m_context.c_str(),
it->m_line_number);
context.append(tmp);
}
return os << context << "ERROR: ";
}
#endif // PLUGIN_X_TESTS_DRIVER_PROCESSOR_SCRIPT_STACK_H_