kakoune/src/assert.cc

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#include "assert.hh"
#include "backtrace.hh"
#include "buffer_utils.hh"
#include "exception.hh"
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#if defined(__CYGWIN__)
#include <windows.h>
#endif
#include <sys/types.h>
#include <unistd.h>
#include <cstdlib>
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namespace Kakoune
{
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struct assert_failed : logic_error
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{
assert_failed(String message)
: m_message(std::move(message)) {}
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StringView what() const override { return m_message; }
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private:
String m_message;
};
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bool notify_fatal_error(StringView msg)
{
#if defined(__CYGWIN__)
return MessageBox(NULL, msg.zstr(), "Kakoune: fatal error",
MB_OKCANCEL | MB_ICONERROR) == IDOK;
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#elif defined(__linux__)
auto cmd = format("xmessage -buttons 'quit:0,ignore:1' '{}'", msg);
int status = system(cmd.c_str());
return (WIFEXITED(status)) ? (WEXITSTATUS(status)) == 1 : false;
#else
return false;
#endif
}
void on_assert_failed(const char* message)
{
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String debug_info = format("pid: {}\ncallstack:\n{}", getpid(), Backtrace{}.desc());
write_to_debug_buffer(format("assert failed: '{}'\n{}", message, debug_info));
const auto msg = format("{}\n[Debug Infos]\n{}", message, debug_info);
if (not notify_fatal_error(msg))
throw assert_failed(msg);
}
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}