Changelog: swc v1.2.15

Bugfixes

emitDecoratorMetadata for parameters (#948)

Previously, swc emit wrong metadata information for decorators on parameter if decorator metadata is enabled. As a result, the code below was broken.

class MyController {

@Get("/callback")

callback(

@Res() res: express.Response,

@Session() session: express.Express.Session

) {

const token = await this.getToken(code);

const user = await this.getUserInfo(token.access_token);

session.oauth2Token = token;

session.user = user;

return res.redirect(state.returnUrl ?? "/");

}

}

Thanks to @Brooooooklyn, this is fixed.

typescript properties (#930)

Now typescript class properties work in the same way as tsc. Previously class_properties pass follows ecmascript spec, and it had broken some codes.

delete a?.b (#947)

Previously, swc emitted an wrong error message for the code below while compiling properly.

const obj = { myProp: 6 };

delete obj?.myProp;

in operator in class properties (#944)

Affected code looks like the code below

class CTest {

myFunc = () => "key" in {};

}