Reproduction link or steps

https://stackblitz.com/~/github.com/nestarz/stackblitz-rolldown-rest-error

Current Behavior

The generated code looks like:

({default: __default,...__rest} = __module);
build_default = __default !== void 0 ? __default : __rest;

where __rest is not defined, causing a ReferenceError.

Expected Behavior

The __rest[index] variable should be properly declared before being used in the destructuring assignment.

Environment

• Rolldown version: 1.0.0-beta.1
• Node.js version: 18.20.3

What is expected?

The __rest[index] variable should be properly declared before being used in the destructuring assignment.

What is actually happening?

When using object destructuring with rest pattern in the output code, the generated variable __rest[index] is not properly declared, leading to a ReferenceError.

System Info

System:
    OS: Linux 5.0 undefined
    CPU: (4) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 18.20.3 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.2.3 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    rolldown: ^1.0.0-beta.1 => 1.0.0-beta.1

Any additional comments?

No response