dimgigov
e87985e879
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Desugar `is` to tag/value equality in bootstrap and selfhost so LIR no longer drops hIs as false. Resolve monomorphized Result/Option type names for `?` (_Tag/_Data). Call bux_exit(1) after Unwrap panic messages. Add is_operator example and document follow-up fixes.
78 lines
3.3 KiB
Markdown
78 lines
3.3 KiB
Markdown
# Bux — План за подобрения (post-v1.0.0)
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> **Дата:** 2026-07-28
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> **Статус:** Всички приоритетни задачи изпълнени ✅
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---
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## Свършено (3 сесии, 13 файла, +608/-96 реда)
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### Сесия 1 — Критични бъгове
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| # | Задача | Файлове |
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|---|--------|---------|
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| B.1 | Грешки при хардкоднати лимити (>8 param/variant/capture) | `src/parser.bux` |
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| B.2 | `is` оператор — lowering + codegen | `src/hir_lower.bux`, `src/c_backend.bux` |
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| B.3 | Enum type param парсване (`enum Result<T,E>`) | `src/parser.bux` |
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| B.4 | `Type_Eq` структурно сравнение | `src/types.bux` |
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| B.6 | `Iter<T>` safety документация | `lib/Iter.bux` |
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| B.8 | Generic enum lowering (selfhost) | `src/hir_lower.bux` |
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| B.9 | Generic enum lowering (Nim bootstrap) | `bootstrap/ast.nim`, `bootstrap/parser.nim`, `bootstrap/hir_lower.nim` |
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### Сесия 2 — Tag/type манглинг
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| # | Задача | Файлове |
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|---|--------|---------|
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| B.7 | HIR walker за enum reference манглинг (selfhost + bootstrap) | `src/hir_lower.bux`, `bootstrap/hir_lower.nim` |
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| — | generic_enum example + test | `examples/generic_enum.bux`, `Makefile` |
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### Сесия 3 — Data field достъп + Stdlib
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| # | Задача | Файлове |
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|---|--------|---------|
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| B.10a | Data field value-read fix (type resolution за generated enums) | `bootstrap/hir_lower.nim` |
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| B.10b | Multiple concrete instance fix (type args от enclosing let) | `bootstrap/hir_lower.nim` |
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| B.10c | `_Data` union field type substitution (T→int в value reads) | `bootstrap/hir_lower.nim` |
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| B.11 | `Result<T,E>` и `Option<T>` генерични | `lib/Result.bux`, `lib/Option.bux`, `examples/map_remove.bux`, `tests/stdlib_golden/collections/src/Main.bux` |
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---
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## Follow-up fixes (post DeepSeek session)
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| # | Бъг | Фикс |
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|---|-----|------|
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| F.1 | `is` → LIR `unhandled hIs` / always false | Desugar to `==` / `.tag ==` in bootstrap + selfhost |
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| F.2 | `?` + `Result<T,E>` → `Result_Tag` C error | Concrete monomorphized typeName + `_Tag`/`_Data` mangling |
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| F.3 | `Unwrap` panic continues with garbage | `bux_exit(1)` after panic in Result/Option |
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| F.4 | Regression example | `examples/is_operator.bux` |
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## Резултат
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- **Всички тестове: 0 FAIL, 0 error**
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- **Selfhost loop: детерминистичен (C + ELF identical)**
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- **Generic enum-ите работят end-to-end:**
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- Парсване с type параметри
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- Tag проверки (`p.tag == Pair_First`)
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- Data field достъп (`p.data.First_0` като l-value и r-value)
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- Множество конкретни инстанции в един файл
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- `Result<T,E>` и `Option<T>` в stdlib
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- `is` operator (simple + algebraic enums)
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- `?` try operator with monomorphized `Result<T,E>`
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## Пример който работи
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```bux
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enum Pair<T, U> {
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First(T), Second(U),
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}
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func Main() -> int {
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let p: Pair<int, String> = Pair_MakeFirst<int, String>(42);
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if p.tag == Pair_First {
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PrintInt(p.data.First_0 as int64); // → 42
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}
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let s: Pair<String, int> = Pair_MakeSecond<String, int>(99);
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if s.tag == Pair_Second {
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PrintInt(s.data.Second_0 as int64); // → 99
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}
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return 0;
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}
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```
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