ded106333b
Add the async-first execution-model roadmap (comptime JIT spine, colorblind fibers/Io, atomics, hot-reload) with all seven decisions resolved and three-way reviewed, and carve the first stream: comptime type_info/reify (PLAN-REIFY + checkpoint) — the codebase-validated foundation for channel result types and race's synthesized tagged union.
33 lines
1.6 KiB
Markdown
33 lines
1.6 KiB
Markdown
# CHECKPOINT-REIFY — comptime `type_info` / `reify` (async-first foundation, step 3)
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Companion to [PLAN-REIFY.md](PLAN-REIFY.md). Update after every step (one step at a
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time, per the cadence rule).
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## Last completed step
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**None — stream just carved.** Design validated (3 codebase reviewers; all five reify
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contracts confirmed feasible). No code written yet.
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## Current state
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- The plan + the five locked contracts exist in `PLAN-REIFY.md`; design-of-record is
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`design/execution-evolution-roadmap.md` §7 step 3 + §8.1.
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- **Nothing built.** `reify`/`type_info`/`field_type` do not exist in the compiler.
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- Confirmed against the source (anchors in the plan): type minting via
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`intern`/`internNominal` is programmatic and AST-free; type-fns memoize by mangled
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name; enum codegen is fully type-table-driven (zero AST coupling); recursive
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forward-declaration (reserve→complete) already exists for source types.
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## Next step
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**Phase 0.0 (lock):** add `TypeInfo`/`EnumInfo`/`EnumVariant` data types + bodyless
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`#builtin` decls for `reify`/`type_info`/`field_type` to `library/modules/std/core.sx`
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(parsed, unimplemented → loud bail), with a unit test that the decls parse. Then 0.1
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(xfail: `examples/06xx-comptime-reify-enum.sx`) → 0.2 (green: implement `reify(.enum_)`).
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## Known issues
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None yet.
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## Log
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- **Stream carved.** Selected as the first async-first foundation: `reify` gates both
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channel result types (`RecvResult($T)`) and `race`'s synthesized union, is fully
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validated (3 reviewers), and is a self-contained compiler/type-system feature
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testable in isolation (`06xx` comptime). Generic-enum syntax dropped in its favor.
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