mirror of
https://github.com/oxc-project/oxc.git
synced 2026-09-14 19:36:11 +08:00
overlookmotel
a4478e960a
Add `oxc-codegen` package - a printer written in TS. ### Features - Prints JS, JSX, TS, TSX. - Matches `oxc_codegen` exactly on all Test262, TypeScript, Acorn-JSX fixtures. - Very fast. ### Deficiencies - Pretty-printing only (no compact/minified output). - No support for printing comments. - Source map support is semi-there, but largely untested, and poor API (design doc has some ideas on how to improve it). ### This PR adds - The printer code. - Conformance testing infra. - Further tests for edge cases. - README. - Design doc - how it differs from `oxc_codegen` and why, what produces the perf. ### This PR doesn't add - Not integrated into CI or release pipeline. ### Notes This started as a slop port of `oxc_codegen`. I've iterated on that base, cleaned it up a lot, and at least skimmed through all of it. I think it's in fairly decent shape. The design doc is I think worth a read. It explains the rationale for the choices, in particular the "1 codebase, 4 builds" approach. I've put it in a new top-level directory called `packages`. It's not an app, so didn't seem to me to fit alongside `apps/oxlint` and `apps/oxfmt`. It's pure JS, so not like e.g. `napi/parser`. And it felt too heavyweight to put into `npm` dir. But maybe there's a better place for it. Co-authored-by: Cameron <cameron.clark@hey.com>
25 lines
965 B
TypeScript
25 lines
965 B
TypeScript
// Test262 conformance.
|
|
//
|
|
// Tests this package prints every Test262 fixture exactly as Rust `oxc_codegen` prints it.
|
|
|
|
import { readdir, readFile } from "node:fs/promises";
|
|
import { join as pathJoin } from "node:path";
|
|
import { describe, it } from "vitest";
|
|
|
|
import { checkFixture, TEST262_DIR_PATH, test262SourceType } from "./utils/common.ts";
|
|
|
|
// Test262 keeps its fixtures' shared helpers in `harness`, which are not test cases
|
|
const fixturePaths = (await readdir(TEST262_DIR_PATH, { recursive: true }))
|
|
.filter((path) => path.endsWith(".js") && !path.startsWith("harness/"))
|
|
.sort();
|
|
|
|
describe.concurrent("test262", () => {
|
|
for (const path of fixturePaths) {
|
|
// oxlint-disable-next-line vitest/valid-title, vitest/expect-expect
|
|
it(path, async (ctx) => {
|
|
const sourceText = await readFile(pathJoin(TEST262_DIR_PATH, path), "utf8");
|
|
if (!checkFixture(path, sourceText, "js", test262SourceType(sourceText))) ctx.skip();
|
|
});
|
|
}
|
|
});
|