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smalltalk: SequenceableCollection methods (13) + String at:/copyFrom:to: + 28 tests
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giles
2026-04-25 10:58:08 +00:00
parent 0b5f3c180e
commit 3be722d5b6
4 changed files with 212 additions and 1 deletions
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plans/smalltalk-on-sx.md
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@@ -87,7 +87,7 @@ Core mapping:
- [x] Exceptions: `Exception`, `Error`, `ZeroDivide`, `MessageNotUnderstood` in bootstrap. `signal` raises the receiver via SX `raise`; `signal:` sets `messageText` first. `on:do:` / `ensure:` / `ifCurtailed:` on BlockClosure use SX `guard`. The auto-reraise pattern uses a side-effect predicate (cleanup runs in the predicate, returns false → guard auto-reraises) because `(raise c)` from inside a guard handler hits a known SX issue with nested-handler frames. 15 tests in `lib/smalltalk/tests/exceptions.sx`. Phase 4 complete.
### Phase 5 — collections + numeric tower
- [ ] `SequenceableCollection`/`OrderedCollection`/`Array`/`String`/`Symbol`
- [x] `SequenceableCollection`/`OrderedCollection`/`Array`/`String`/`Symbol`. Bootstrap installs shared methods on `SequenceableCollection`: `inject:into:`, `detect:`/`detect:ifNone:`, `count:`, `allSatisfy:`/`anySatisfy:`, `includes:`, `do:separatedBy:`, `indexOf:`/`indexOf:ifAbsent:`, `reject:`, `isEmpty`/`notEmpty`, `asString`. They each call `self do:`, which dispatches to the receiver's primitive `do:` — so Array, String, and Symbol inherit them uniformly. String/Symbol primitives gained `at:` (1-indexed), `copyFrom:to:`, `first`/`last`, `do:`. OrderedCollection class is in the bootstrap hierarchy; its instance shape will fill out alongside Set/Dictionary in the next box. 28 tests in `lib/smalltalk/tests/collections.sx`.
- [ ] `HashedCollection`/`Set`/`Dictionary`/`IdentityDictionary`
- [ ] `Stream` hierarchy: `ReadStream`/`WriteStream`/`ReadWriteStream`
- [ ] `Number` tower: `SmallInteger`/`LargePositiveInteger`/`Float`/`Fraction`
@@ -108,6 +108,7 @@ Core mapping:
_Newest first. Agent appends on every commit._
- 2026-04-25: Phase 5 sequenceable-collection methods + 28 tests (`lib/smalltalk/tests/collections.sx`). 13 shared methods on `SequenceableCollection` (inject:into:, detect:, count:, …), inherited by Array/String/Symbol via `self do:`. String primitives at:/copyFrom:to:/first/last/do:. 523/523 total.
- 2026-04-25: Exception system + 15 tests (`lib/smalltalk/tests/exceptions.sx`). Exception/Error/ZeroDivide/MessageNotUnderstood in bootstrap; signal/signal: raise via SX `raise`; on:do:/ensure:/ifCurtailed: on BlockClosure via SX `guard`. Phase 4 complete. 495/495 total.
- 2026-04-25: `Object>>becomeForward:` + 6 tests. In-place mutation of `:class` and `:ivars` via `dict-set!`; aliases see the new identity. 480/480 total.
- 2026-04-25: `Behavior>>compile:` + sisters + 9 tests. Parses source via `st-parse-method`, installs via runtime helpers; also added `addSelector:withMethod:` and `removeSelector:`. 474/474 total.