77 lines
4.9 KiB
Markdown
77 lines
4.9 KiB
Markdown
# Story — one language, one runtime, one database, one binary
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> Format: fiberloom `product/story-template` (tech-unit standard artifact).
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> Sources consulted: fiberloom `tech-unit/framework`, `product/story-template`, `product/story-iteration-template`.
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**AS** a developer building and operating my own products end to end
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**I WANT** a new programming language — with arithmetic, ownership-based memory safety, and garbage collection where I opt in — whose compiler, runtime, and database ship as a single never-stopping Linux binary that can update its own code in place
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**TO** write an application once and run it forever: no external stack to assemble, no database server to operate, and deployments that swap code inside the running process with instant rollback.
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## User Value
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- One artifact is the whole system: the language's runtime owns the data,
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serves the API, and carries its own source — the "which commit is prod
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running?" class of questions disappears.
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- Memory safety without a GC tax: Rust-shaped borrowing (single owner,
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second-class borrows) checked mostly at compile time, with per-class `@gc`
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opt-in collected per shard — no global pause exists by construction.
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- Updates are blue-green **inside** the runtime: propose, approve, compile
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in-process, atomic switch, previous version resident for instant rollback.
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- The runtime is a recipe box: once language + runtime + database exist, a
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web framework arrives as a `.wo` library composing runtime capabilities —
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the recorded next story.
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## Background & Constraints
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writeonce today is a declarative Rust-based runtime (Stage 2). This story
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evolves it into an object-oriented language (`woc` OCaml compiler, `wovm` C
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VM) per the approved specs: C as the runtime's basis (libc only), no
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inheritance ever, mutable value semantics for borrowing, shard-per-core
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concurrency with ownership-moving messages, RAM-authoritative data under a
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WAL, and the blue-green VM pair for in-runtime deployment. Target OS is
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Linux; kernel primitives are the framework. The Rust runtime retires only at
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parity. Constraints: OCaml stdlib only, C libc only; docs live under
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`docs/`; prose-only planning artifacts (no implementation code in stories or
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iterations); no commits by agents — drafts go to `.dev/commit.md`.
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## Iterations (review in this order)
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| # | Iteration | Delivers |
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| --- | --- | --- |
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| 1 | [Principles doc](01-principles-doc.md) | `docs/00-principles.md` — the doctrine page every later slice links back to |
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| 2 | [VM core](02-vm-core.md) | `wovm`: `.wob` loader, register interpreter, arena, borrow word, `@gc` collector |
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| 3 | [Compiler front](03-compiler-front.md) | `woc`: lexer → parser → typechecker → ownership pass, diagnostics |
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| 4 | [Single binary end-to-end](04-single-binary-e2e.md) | emitter + conformance corpus + `woc build` self-contained binary |
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| 5 | [Language surface](05-language-surface.md) | Haxe-parity adoptions: switch, records, optionals, try/catch, statics, modules… |
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| 6 | [Program mode + stdlib](06-program-mode-stdlib.md) | `fn main`, exit codes, `fs`/`proc`/`net`/`time`/`json` builtins |
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| 7 | [log-watcher proof](07-logwatcher-proof.md) | the driving workload compiled and detecting silent deaths live |
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| 8 | [Shard-actor runtime](08-shard-actor-runtime.md) | thread-per-core shards, per-shard heaps, ownership-move messaging |
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| 9 | [Database engine](09-database-engine.md) | class-shaped tables, typed WAL + recovery, `insert`/`select` execute |
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| 10 | [HTTP service layer](10-http-service.md) | `service` blocks route to VM methods; REST parity with Stage 2 |
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| 11 | [Blue-green deploy](11-blue-green-deploy.md) | two VM slots, in-runtime compile, atomic switch, resident rollback |
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Review protocol: the developer reads one iteration, approves or amends;
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the next starts only after approval. Each iteration is an unsplittable
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value slice with its own acceptance criteria (Given/When/Then), out-of-scope
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list, and a pointer to the plan document that already sequences its tasks.
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## Related Links
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- OOP core spec: `docs/superpowers/specs/2026-08-01-oop-compiler-vm-design.md`
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- Systems track spec: `docs/superpowers/specs/2026-08-01-systems-track-design.md`
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- Blue-green spec: `docs/superpowers/specs/2026-08-03-blue-green-vm-design.md`
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- Sample+principles spec: `docs/superpowers/specs/2026-08-07-logwatcher-sample-and-principles-design.md`
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- Plan documents: `docs/superpowers/plans/` (plans 1–10), `compiler/plan/` (2, 3, 8 + architecture)
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- Roadmap map: `docs/08-project-structure.md` (build sequence)
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- Behavioral reference workload: `~/projects/log-watcher` (Haxe daemon)
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## Notes
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- Acceptance criteria live in each iteration file; this story frames the
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outcome.
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- Recorded future stories, deliberately outside this one: the web framework
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as a `.wo` library over the recipe-box runtime; UI (`##ui` SSR + live
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patches); script-based destructive schema migrations; MCP/agent wrapper
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over the management plane.
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