68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
/* Copyright 2020-2022, Michele Santullo
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* This file is part of wrenpp.
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*
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* Wrenpp is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Wrenpp is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with wrenpp. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "wrenpp/def_configuration.hpp"
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#include <iostream>
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#include <algorithm>
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namespace wren {
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namespace {
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template <typename T>
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bool empty(T* message) {
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return not (message and *message);
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}
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} //unnamed namespace
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void DefConfiguration::write_fn (VM*, wren_string_t text) {
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std::cout << text;
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}
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void DefConfiguration::error_fn (VM*, ErrorType type, wren_string_t module, int line, wren_string_t message) {
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using std::empty;
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std::cerr << "Wren error: " << message;
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if (!empty(module)) {
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std::cerr << " in " << module;
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if (line > -1) {
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std::cerr << ':' << line;
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}
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}
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std::cerr << '\n';
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}
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void* DefConfiguration::reallocate_fn (void* ptr, std::size_t size) {
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if (ptr and size) {
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//reallocate
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char* const old_mem = static_cast<char*>(ptr);
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char* const new_mem = new char[size];
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std::copy(old_mem, old_mem + size, new_mem);
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delete[] old_mem;
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return new_mem;
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}
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else if (ptr and not size) {
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//free
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char* const old_mem = static_cast<char*>(ptr);
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delete[] old_mem;
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}
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else if (not ptr and size) {
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//allocate
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char* const new_mem = new char[size];
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return new_mem;
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}
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return nullptr;
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}
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} //namespace wren
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