Method fail

common/script/scriptargs.cpp:50–64

}

void ScriptArgs::fail(const char* fmt, ...) const
{
    // Formatted here rather than handed to ProgramFail, which knows only
    // %s/%d/%c/%t/%f and has no way to prepend the binding name. A stack buffer
    // on purpose: this runs on the way out of a failing run, so it must not
    // depend on an allocation succeeding.
    char message[256];
    va_list args;
    va_start(args, fmt);
    vsnprintf(message, sizeof(message), fmt, args);
    va_end(args);

    ProgramFail(mParser, "%s: %s", mBinding, message);
    __builtin_unreachable(); // ProgramFail longjmps; it is just not declared so
}

struct Value* ScriptArgs::at(int i) const
{