shoney.arickathil
2a4c304378
- done/ (11): 1, 2, 3, 4, 6, 7, 7b, 9, 9b, 15, 16 — landed iterations (9/9b remainders live in the post-12 drain list, not in the files) - refine/ (8): 9c, 9d, 9e, 9f, 9g, 11, 13, 14 — everything marked "no spec yet / brainstorm before planning" - root keeps: 00-story (index), 05 (partial, plan 8 open), 8/10/12 (specs or plans exist), 17 (parked, spec+plan approved), 18 (next) - every cross-reference re-pathed and VERIFIED resolving: board, specs, plans, employee-list README, story table, intra-story links (moved files' relative links deepened one level; done/7b's 9e pointer now crosses to refine/) - pre-existing dead link noted, not touched: refine/11-fibers.md points at docs/plan/exploration/fibers/00-fibers.md which does not exist (predates the move) Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
54 lines
2.1 KiB
Markdown
54 lines
2.1 KiB
Markdown
# Iteration 3 — compiler front (`woc`)
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> Format: `product/story-iteration-template`. Part of
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> [Story — one language, one runtime, one database, one binary](../00-story.md).
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## Goals
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- An OCaml, stdlib-only compiler front end: `.wo` source becomes a typed
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AST with ownership annotations, or plain, precise diagnostics — the
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half of the language the developer converses with.
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- Ownership errors read like sentences naming both sites ("moved at
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pricing.wo:14, used at pricing.wo:17") — the ergonomics bet that makes
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MVS beat Rust for this audience.
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## Acceptance Criteria
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- What to achieve?
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- **Given** the pricing-demo classes,
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- **when** `woc` runs its front pipeline (lex → parse → typecheck →
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ownership),
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- **then** `--dump-ast` output matches the golden file and zero
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diagnostics are emitted.
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- What to achieve?
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- **Given** a file violating ownership rules (move-after-use, borrow
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escape, double exclusive borrow),
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- **when** it compiles,
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- **then** each violation reports a stable `WO-E###` code with both
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source sites, and one bad declaration does not stop diagnosis of the
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rest of the file.
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- What to achieve?
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- **Given** a class that satisfies an interface structurally,
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- **when** typechecking runs,
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- **then** satisfaction is recognized with no `implements` declaration,
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and per-method `self` mutability is inferred (reads shared, writes
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exclusive).
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## Out Of Scope
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- Bytecode emission and running anything (iteration 4).
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- The Haxe-parity adoptions (iteration 5) — milestone grammar only.
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## Info
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- Newline-significant lexing and the identifier gotchas mirror
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`crates/rt`'s lexer — grammar parity is a stated contract.
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- Architecture map: `docs/plan/compiler/architecture.md` (pipeline, module
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contracts, study references).
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## Proposed Solution
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- Execute the existing plan: `docs/plan/compiler/2026-08-01-woc-compiler-front.md`
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(diagnostics module, lexer, declaration/statement/expression parsers with
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skip-on-block, typechecker with field-kind derivation, MVS ownership pass
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producing the four emitter tables, driver + error catalog).
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