mirror of
https://github.com/danbulant/oxc
synced 2026-05-21 13:18:59 +00:00
0eadd9f6de
Fix class properties transform to create a temp var for class when it's required.
Input:
```js
class C {
static getSelf = () => this;
}
const C2 = C;
C = 123;
assert(C2.getSelf() === C);
```
Output:
```js
var _C;
class C {}
_C = C;
_defineProperty(C, "getSelf", () => _C);
const C2 = C;
C = 123;
assert(C2.getSelf() === C);
```
Previously, temp var wasn't used so code was `_defineProperty(C, "getSelf", () => C);`. `C` is altered later by `C = 123`, so `C2.getSelf()` returned `123`, instead of reference to the class.
The logic around when a temp var is required and when it's not, and when/where it's referenced is ridiculously complicated. So add some debug assert mechanisms to double-check the logic.
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| .. | ||
| snapshots | ||
| src | ||
| tests | ||
| .gitignore | ||
| Cargo.toml | ||
| package.json | ||
| README.md | ||
| update_fixtures.js | ||
Transformation Conformance Test Runner
Execution
This test runner uses the transformation plugin test suite from the Babel repository.
Additional tests are in the tests directory.
The failing test cases are listed in:
To get started, run
cargo run -p oxc_transform_conformance
or watch for changes
just watch 'run -p oxc_transform_conformance'
Options
--filter
To filter for a specific test case, apply the --filter path option, e.g.
cargo run -p oxc_transform_conformance -- --filter react/arrow-functions
--exec
The Babel test suite contains many exec.js files, which need to be executed by a runtime.
bun is the preferred way to execute these tests, which you may install them via https://bun.sh/docs/installation.
Once bun is installed, apply the --exec flag:
cargo run -p oxc_transform_conformance -- --exec
The failing test cases are listed in babel_exec.snap.md.