Files
oxc-project__oxc/crates/oxc_react_compiler/fixtures/name-anonymous-functions.js
Boshen 6efce65746 test(react_compiler): snapshot the upstream fixture corpus (#24101)
## Summary

`oxc_react_compiler` had no committed test over the upstream React
Compiler fixture corpus — the fixtures lived only in the
`oxc-project/forked-react-compiler` checkout, exercised out-of-tree.
That gap let real regressions slip past the 15 in-crate integration
tests. This PR closes it.

- **`crates/oxc_react_compiler/fixtures/`** — 1734 fixture *input* files
(`.js`/`.ts`/`.tsx`/`.jsx`/`.mjs`), copied from the fork's
`babel-plugin-react-compiler/src/__tests__/fixtures/compiler` tree with
subdirectories preserved. Flow fixtures (the `@flow`-pragma ones) are
excluded — oxc has no Flow parser. The upstream `.expect.md` goldens are
also not copied; insta is the golden here.
- **`crates/oxc_react_compiler/tests/snapshot.rs`** — an `insta::glob!`
test that, per fixture, derives `PluginOptions`/`EnvironmentConfig` from
the first-line `// @directive` pragmas (base `compilationMode=all` /
`panicThreshold=all_errors`, matching the upstream `snap` runner),
parses → builds semantic → runs `transform`, and snapshots the compiled
output plus diagnostics. Unrecognised directives are ignored, as
upstream does; camelCase flag directives map to `EnvironmentConfig`
fields via `convert_case`.
- **`crates/oxc_react_compiler/tests/snapshots/`** — 1734 committed
`.snap` goldens (oxc's own output).
- **`.typos.toml`** — excludes the fixtures dir (the upstream fixtures
contain intentional typos; `**/*.snap` was already excluded).

These snapshots are oxc's own golden output, so `cargo test` (and CI)
now catches any change in compiler behaviour across the corpus.
Regenerate after an intended change with `cargo insta accept`.

## Verification

- `cargo test -p oxc_react_compiler` passes — the 1734-fixture snapshot
test plus the existing 15 integration tests; also green under
`--all-features` (matches the cross-target CI job).
- clippy `-D warnings`, `cargo fmt`, and `typos` clean.
- No fixture panics; 1336 compiled / 398 unchanged / 335 with
diagnostics.
- The `error.*` fixtures capture the exact diagnostics — including the
"Cannot reassign variable after render" error that a recent scoping
change had silently suppressed, confirming the suite catches real
regressions.

---

AI usage disclosure: authored with Claude Code and reviewed before
submission.

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-07-03 16:49:53 +08:00

59 lines
1.6 KiB
JavaScript

// @enableNameAnonymousFunctions
import {useCallback, useEffect} from 'react';
import {identity, Stringify, useIdentity} from 'shared-runtime';
import * as SharedRuntime from 'shared-runtime';
function Component(props) {
function named() {
const inner = () => props.named;
const innerIdentity = identity(() => props.named);
return inner(innerIdentity());
}
const callback = useCallback(() => {
return 'ok';
}, []);
const namedVariable = function () {
return props.namedVariable;
};
const methodCall = SharedRuntime.identity(() => props.methodCall);
const call = identity(() => props.call);
const builtinElementAttr = <div onClick={() => props.builtinElementAttr} />;
const namedElementAttr = <Stringify onClick={() => props.namedElementAttr} />;
const hookArgument = useIdentity(() => props.hookArgument);
useEffect(() => {
console.log(props.useEffect);
JSON.stringify(null, null, () => props.useEffect);
const g = () => props.useEffect;
console.log(g());
}, [props.useEffect]);
return (
<>
{named()}
{callback()}
{namedVariable()}
{methodCall()}
{call()}
{builtinElementAttr}
{namedElementAttr}
{hookArgument()}
</>
);
}
export const TODO_FIXTURE_ENTRYPOINT = {
fn: Component,
params: [
{
named: '<named>',
namedVariable: '<namedVariable>',
methodCall: '<methodCall>',
call: '<call>',
builtinElementAttr: '<builtinElementAttr>',
namedElementAttr: '<namedElementAttr>',
hookArgument: '<hookArgument>',
useEffect: '<useEffect>',
},
],
};