swc_bundler: emitting all symbols in certain scenarios

[kitsonk]

Describe the bug

swc_bundler wrongly emits all symbols in a module in certain scenarios.

I have tried to get the reproducible as small as possible.

Input code

example10.ts

export { a, b } from "./k.ts";

i.ts

export function a(...d: string[]): string {
  return d.join(" ");
}

j.ts

export function a(...d: string[]): string {
  return d.join("/");
}

k.ts

import * as _i from "./i.ts";
import * as _j from "./j.ts";

const k = globalThis.value ? _i : _j;

export const i = _i;
export const j = _j;

export const {
  a,
} = k;

Expected behavior

That non-exported symbols don't get exported.

Current bundling outputs, where d couldn't possible be exported. In the real world-code example this is based on, basically any symbol in the module in this situation gets exported, which of course is totally invalid at run-time:

const _i = function() {
    function a(...d) {
        return d.join(" ");
    }
    return {
        a,
        d
    };
}();
const _j = function() {
    function a(...d) {
        return d.join("/");
    }
    return {
        a,
        d
    };
}();
const k = globalThis.value ? _i : _j;
const { a ,  } = k;
export { a };

Version

Version: swc_bundler 0.8.1 (current #1005 branch)

Additional context

Working to integrate swc_bundler into Deno.

[swc-bot]

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