mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-24 06:14:01 +08:00
Chris Tate
e517a251ae
- Preserve class property views, opaque record identity, and nullable structural conversions - Run package metadata transforms and TypeScript option merges as native code - Serialize live typed records with opaque payloads and JSON hooks
43 lines
2.5 KiB
TypeScript
43 lines
2.5 KiB
TypeScript
import { npmStaticTransformPkgJson } from "../../../packages/compiler/src/frontend/npm-static.js";
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import { resolveExports } from "../../../packages/compiler/src/frontend/resolve.js";
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import type { Ts7CompilerOptions } from "../../../packages/compiler/src/frontend/ts7/program-host.js";
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// Execute the production package rewrite, including recursive visits to
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// unknown dictionaries, arrays, and conditional exports. The output is
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// compared to the same code executed by Node.
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const packages = [
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'{"name":"simple","types":"index.d.ts","typings":"old.d.ts","exports":{"import":"./esm.js","require":"./cjs.js","types":"./index.d.ts"}}',
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'{"name":"nested","exports":{".":{"node":{"import":"./node.mjs","require":"./node.cjs"},"default":"./web.js","types":"./types.d.ts"},"./feature/*":{"import":"./esm/*.js","require":"./lib/*.js"}}}',
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'{"name":"fallbacks","exports":{".":[null,{"types":"./one.d.ts","node":{"default":"./one.js"}},"./two.js"],"./empty":null}}',
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'{"name":"leaf","exports":"./index.js"}',
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'{"name":"empty"}',
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];
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for (const text of packages) {
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const parsed = JSON.parse(text) as Record<string, unknown>;
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npmStaticTransformPkgJson(parsed);
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console.log(JSON.stringify(parsed));
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const exports = parsed["exports"];
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for (const path of [".", "./feature/use", "./empty", "./missing"]) {
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console.log(path, resolveExports(exports, path, new Set(["node", "import", "default"])));
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}
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}
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// The frontend consumes the generated TS7 option shape while reading
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// user options from JSON. Merge the actual type with the same field/index
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// contributors as program.ts, retaining defaults and forced values.
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const defaults: Ts7CompilerOptions = { strict: true, target: 9, lib: ["lib.es2023.d.ts"], noEmit: true };
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const selected: Record<string, unknown> = { strict: false, target: 7, module: 99, paths: { "@app/*": ["src/*"] } };
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const forced: Ts7CompilerOptions = { noEmit: true, strictNullChecks: true };
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const options: Ts7CompilerOptions = { ...defaults, ...selected, ...forced };
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console.log(options.strict, options.strictNullChecks, options.noEmit, options.target, options.module);
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console.log(options.lib === defaults.lib, options.lib?.join(","));
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if (options.paths !== undefined) console.log(JSON.stringify(options.paths));
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interface PackageView { name?: string; type?: string; exports: unknown; workspaces: unknown }
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const view: PackageView = {
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name: "compiler", type: "module", exports: { ".": { import: "./index.js" } }, workspaces: ["packages/*"],
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};
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console.log(JSON.stringify(view));
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view.workspaces = undefined;
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console.log(JSON.stringify(view));
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