diff --git a/eslint.config.js b/eslint.config.js new file mode 100644 index 0000000..d96e988 --- /dev/null +++ b/eslint.config.js @@ -0,0 +1,110 @@ +// eslint.config.js — ESLint 9 flat config +// +// Phase 1, Plan 02 (CORE-10): the architectural firewall. +// +// This file declares the seven src/ subsystem element types plus the +// template-provided `app` and `game` types, and one rule: +// +// `src/sim/` MUST NOT import from `src/render/` or `src/ui/`. +// +// The simulation core must remain rendering-agnostic and headless so the +// offline-catchup math in Phase 2 can run deterministically without React +// or Phaser. See CLAUDE.md "Architectural Firewall (load-bearing)" and +// .planning/phases/01-foundations-and-doctrine/01-CONTEXT.md (D-10). +// +// We intentionally do NOT pull in `js.configs.recommended` or the +// typescript-eslint *rule sets* here. Plan 02 owns exactly one +// architectural rule; broader code-quality lint is out of scope for +// Phase 1 (and would expand Wave-2 surface area on a clean greenfield +// codebase). Future phases may layer more rules on top of this config +// without touching the firewall block. +// +// We DO use `typescript-eslint`'s *parser* — it is the only way ESLint +// can parse `.ts` / `.tsx` files at all (Espree, ESLint's default +// parser, doesn't understand TypeScript syntax or JSX). This is a +// parser-only integration; no `tseslint.configs.*` rule sets are +// applied. This is documented as a Plan 02 deviation (Rule 3 — Blocking) +// in 01-02-SUMMARY.md. + +import boundaries from 'eslint-plugin-boundaries'; +import tseslint from 'typescript-eslint'; + +export default [ + // --------------------------------------------------------------------- + // 1. Default-lint exclusions. + // + // The deliberate-violation fixture under src/sim/__test_violation__/ + // exists ONLY to be lint-tested by Task 2's Vitest test (which runs + // ESLint programmatically with `ignore: false`). It must NOT trip + // `npm run lint` in CI — the rule is verified by the unit test, not + // by the default lint glob. + // --------------------------------------------------------------------- + { + ignores: [ + 'src/sim/__test_violation__/**', + 'dist/**', + 'node_modules/**', + 'coverage/**', + '*.tsbuildinfo', + ], + }, + + // --------------------------------------------------------------------- + // 2. Phase-1 architectural firewall (CORE-10). + // + // Seven src/ subsystem types matching CONTEXT D-10's directory layout, + // plus `app` (the React/Phaser bridge files at src/main.tsx, src/App.tsx, + // src/PhaserGame.tsx) and `game` (the Phaser scene tree at src/game/**). + // + // Default posture is `allow` — Phase 1 enforces ONE rule, not a + // closed-by-default architecture. Future phases may add cross-subsystem + // restrictions (e.g., `render` cannot import `save`) without changing + // the default. + // --------------------------------------------------------------------- + { + files: ['src/**/*.{ts,tsx,js,jsx,mjs,cjs}'], + plugins: { boundaries }, + languageOptions: { + // Parser-only integration with typescript-eslint. Lets ESLint + // parse TS / TSX (incl. JSX) so the boundaries rule can inspect + // imports. No tseslint rule sets are enabled — that is out of + // Phase-1 scope (Plan 02 owns ONE rule: CORE-10). + parser: tseslint.parser, + parserOptions: { + ecmaVersion: 'latest', + sourceType: 'module', + ecmaFeatures: { jsx: true }, + }, + }, + settings: { + 'boundaries/elements': [ + { type: 'sim', pattern: 'src/sim/**' }, + { type: 'render', pattern: 'src/render/**' }, + { type: 'ui', pattern: 'src/ui/**' }, + { type: 'save', pattern: 'src/save/**' }, + { type: 'content', pattern: 'src/content/**' }, + { type: 'audio', pattern: 'src/audio/**' }, + { type: 'store', pattern: 'src/store/**' }, + { type: 'app', pattern: 'src/{main,App,PhaserGame}.{ts,tsx}' }, + { type: 'game', pattern: 'src/game/**' }, + ], + 'boundaries/include': ['src/**/*'], + // Quietly tolerate files that aren't classified (e.g., src/vite-env.d.ts, + // src/__sentinel__.test.ts). The firewall rule only fires on + // sim → {render, ui} edges; unclassified files don't trigger it. + 'boundaries/ignore': ['src/vite-env.d.ts', 'src/__sentinel__.test.ts'], + }, + rules: { + // CORE-10: the simulation core cannot reach into render or UI. + // Severity MUST be `error` — `npm run lint` runs with + // `--max-warnings 0` (per Plan 01), so a warning would also fail + // CI, but `error` makes intent unambiguous. + 'boundaries/element-types': ['error', { + default: 'allow', + rules: [ + { from: ['sim'], disallow: ['render', 'ui'] }, + ], + }], + }, + }, +]; diff --git a/package-lock.json b/package-lock.json index 0943835..4a79136 100644 --- a/package-lock.json +++ b/package-lock.json @@ -32,6 +32,7 @@ "happy-dom": "^20.9.0", "inklecate": "^1.8.1", "typescript": "^6.0.3", + "typescript-eslint": "^8.59.2", "vite": "^8.0.11", "vitest": "^4.1.5" } @@ -755,6 +756,288 @@ "@types/node": "*" } }, + "node_modules/@typescript-eslint/eslint-plugin": { + "version": "8.59.2", + 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"vitest": "^4.1.5" }