hakorune/dev/selfhosting/README.md

Self‑Hosting Dev (JIT / VM)

Focus: Ny → MIR → MIR‑Interp → VM/JIT quick loops to validate semantics and bootstrap paths.

Quickstart

• Core build (JIT):
  • cargo build --release --features cranelift-jit
• Core smokes (plugins disabled):
  • NYASH_CLI_VERBOSE=1 ./tools/jit_smoke.sh
• Roundtrip (parser pipe + json):
  • ./tools/ny_roundtrip_smoke.sh
• Plugins smoke (optional gate):
  • NYASH_SKIP_TOML_ENV=1 ./tools/smoke_plugins.sh
• Using/Resolver E2E sample (optional):
  • ./tools/using_e2e_smoke.sh (requires --enable-using)
• Bootstrap c0→c1→c1' (optional):
  • ./tools/bootstrap_selfhost_smoke.sh

Docs

• One‑page guide: docs/self-hosting.md

Flags

• NYASH_DISABLE_PLUGINS=1: stabilize core path
• NYASH_LOAD_NY_PLUGINS=1: enable nyash.toml ny_plugins
• NYASH_ENABLE_USING=1: using/namespace enable
• NYASH_SKIP_TOML_ENV=1: suppress [env] mapping in nyash.toml

Tips

• For debug, set NYASH_CLI_VERBOSE=1.
• Keep temp artifacts under this folder (dev/selfhosting/_tmp/) to avoid polluting repo root.

Dev Loop (Ny-only)

• One-off run (VM): ./tools/dev_selfhost_loop.sh apps/selfhost-minimal/main.nyash
• Watch + std libs: ./tools/dev_selfhost_loop.sh --watch --std apps/selfhost/ny-parser-nyash/main.nyash
• Make targets:
  • make dev (VM, std on, verbose)
  • make dev-watch (watch mode)

Notes

• Rebuild Rust only when core changes; Ny scripts reload on each run.
• Flags: --backend mir|vm, -v for verbose, --std to load [ny_plugins].