mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-02 08:35:07 +08:00
Chris Tate
63dc3f313c
- the fs shadow serves opted-in bundle files with the plumbing space-padded and one canonical tail table: chased getter values as alias-plumbed entries, star re-exports as spreads plus per-name member reads, lexer-visible-but-unchaseable names as checked-dynamic any bindings valued undefined - lexer parity is the contract: the rewritten text answers the same name set to the CJS lexer that the original answers Node, unused helper declarations sweep away, and esbuild's __esModule marker is deliberately omitted (Node never lexed it; spelling it flips default-import interop) - npmStaticPackageOfPath answers for opted-in workspace realpaths, and the shadow registers a symlinked install's realpath the moment resolution touches it (nested-realm monorepo drivers) - non-opted UNTYPED node_modules packages serve as an any-surface stub so maxNodeModuleJsDepth cannot change the program's own types under the flag - auto eligibility refuses only bundler-runtime markers (__webpack_require__) now that degradation is graceful
71 lines
2.8 KiB
JavaScript
71 lines
2.8 KiB
JavaScript
import tseslint from "typescript-eslint";
|
|
|
|
/* The 5.9.3 parser islands: the ONLY files that may import typescript5
|
|
* (the alias pinning the old compiler). Everything else lives in the
|
|
* 7.0.2 world — the two worlds' enums are renumbered and their nodes are
|
|
* not interchangeable, so a stray cross-import is a correctness bug, not
|
|
* a style problem. */
|
|
const TS5_ISLANDS = [
|
|
"packages/compiler/src/frontend/npm.ts",
|
|
"packages/compiler/src/frontend/cjs-lexer.ts",
|
|
"packages/compiler/src/frontend/lowering/lower-comptime.ts",
|
|
"packages/compiler/src/frontend/ts7/world-check.ts",
|
|
// The provenance prescan parses files BEFORE any program world exists
|
|
// (the bare-import walk that decides what to fetch) — a parser island
|
|
// exactly like npm.ts's specifier scan.
|
|
"packages/compiler/src/frontend/provenance.ts",
|
|
// The bundler-emitted-CJS export rewrite runs inside the fs shadow,
|
|
// BEFORE the 7.0.2 program reads the file — a text→text parser island
|
|
// beside cjs-lexer.ts (only strings cross its boundary).
|
|
"packages/compiler/src/frontend/npm-static-rewrite.ts",
|
|
];
|
|
|
|
const ts5Fence = {
|
|
group: ["typescript5", "typescript5/*"],
|
|
message: "typescript5 (the 5.9.3 island alias) is only for the parser islands (npm.ts, cjs-lexer.ts, lower-comptime.ts, ts7/world-check.ts) — everything else is the 7.0.2 world; the worlds never mix",
|
|
};
|
|
const frontendFence = {
|
|
group: ["**/frontend/*", "**/frontend/**"],
|
|
message: "backend must not import frontend — the IR is the only interface",
|
|
};
|
|
const backendFence = {
|
|
group: ["**/backend/*", "**/backend/**"],
|
|
message: "frontend must not import backend — the IR is the only interface",
|
|
};
|
|
|
|
/* NOTE: no-restricted-imports does not MERGE across matching config
|
|
* blocks — the last matching block replaces the whole rule config. Every
|
|
* block below therefore carries its complete pattern set. */
|
|
export default tseslint.config(
|
|
...tseslint.configs.recommended,
|
|
{
|
|
// The IR is the only interface between frontend and backend.
|
|
files: ["packages/compiler/src/backend/**"],
|
|
rules: {
|
|
"no-restricted-imports": ["error", { patterns: [frontendFence, ts5Fence] }],
|
|
},
|
|
},
|
|
{
|
|
files: ["packages/compiler/src/frontend/**"],
|
|
ignores: TS5_ISLANDS,
|
|
rules: {
|
|
"no-restricted-imports": ["error", { patterns: [backendFence, ts5Fence] }],
|
|
},
|
|
},
|
|
{
|
|
files: TS5_ISLANDS,
|
|
rules: {
|
|
"no-restricted-imports": ["error", { patterns: [backendFence] }],
|
|
},
|
|
},
|
|
{
|
|
// Everything in the compiler outside frontend/backend (ir, diagnostics,
|
|
// index) is 7.0.2-world too.
|
|
files: ["packages/compiler/src/**"],
|
|
ignores: ["packages/compiler/src/frontend/**", "packages/compiler/src/backend/**"],
|
|
rules: {
|
|
"no-restricted-imports": ["error", { patterns: [ts5Fence] }],
|
|
},
|
|
},
|
|
);
|