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sm_parser: fixes, tested on Functions.sm

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ProgramSnail 2025-06-01 16:51:56 +03:00
parent 66ccf639c8
commit 7c3ff04573
3 changed files with 140 additions and 37 deletions
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23
byterun/include/sm_parser.hpp
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@ -11,6 +11,23 @@ template <class... Ts> struct multifunc : Ts... {
using Ts::operator()...;
};
template <class... Ts> multifunc(Ts...) -> multifunc<Ts...>;
template <typename T, typename E = std::string> struct Result {
struct Error {
E v;
};
bool failed() { return value.index() != 0; }
static Result failure(E &&err) { return Result{.value = Error{err}}; }
static Result success(T &&value) { return Result{.value = value}; }
const T &get_value() { return std::get<0>(value); }
const E &get_error() { return std::get<1>(value).v; }
std::variant<T, Error> value = Error{E{}};
};
} // namespace utils
enum class Patt {
@ -239,6 +256,10 @@ struct SMInstr {
std::vector<SMInstr> parse_sm(std::istream &in);
std::optional<SMInstr> parse_sm(const std::string &line);
utils::Result<SMInstr> parse_sm(const std::string &line);
std::string print_sm(const SMInstr &instr);
// ---
template struct utils::Result<SMInstr, std::string>;