issues in reexport

[IWANABETHATGUY]

reexport have duplicate

File: example/index.mjs

import { b } from './bar.mjs'


b;

File: example/bar.mjs

export function bar() {}

export * from "./foo.mjs";
export * from "./result.mjs";

File: example/foo.mjs

export const a = 3;
export const b = 3;
export * from "./bar.mjs";
export * from "./result.mjs";

File: example/result.mjs

export const c = 103330;
export const b = 103330;

export * from "./foo.mjs";
export * from "./bar.mjs";

Summary

1. both foo.mjs and result.mjs have exported b

execute node index.mjs
got:

import { b } from './bar.mjs'
         ^
SyntaxError: The requested module './bar.mjs' contains conflicting star exports for name 'b'
    at ModuleJob._instantiate (node:internal/modules/esm/module_job:123:21)
    at async ModuleJob.run (node:internal/modules/esm/module_job:189:5)
    at async Promise.all (index 0)
    at async ESMLoader.import (node:internal/modules/esm/loader:526:24)
    at async loadESM (node:internal/process/esm_loader:91:5)
    at async handleMainPromise (node:internal/modules/run_main:65:12)

only edit bar.mjs

- export function bar() {}
+ export function b() {}

export * from "./foo.mjs";
export * from "./result.mjs";
export * from "./foo.mjs";
export * from "./result.mjs";

Now both bar.mjs, foo.mjs and result.mjs have exported b
execute it again

node index.mjs

got nothing in output

[hyf0]

Explicit named export has higher priority 1.

// main.js
import { a } from './foo'
console.log(a)

// foo.js
export const a = 'foo';
export * from './bar'

// bar.js
export const a  = 'bar'

Expected

// foo.js
export const a = 'foo';

// main.js
console.log(a)

Explicit named export has higher priority 2.

// main.js
import { a } from './foo'
console.log(a)

// foo.js
export { a } from './baz'
export * from './bar'

// bar.js
export const a  = 'bar'

// baz.js
export const a  = 'baz'

Expected

// foo.js
export const a = 'baz';

// main.js
console.log(a)

Conflicted name by re-export all should be hidden

// main.js
export * from './foo'
export * from './bar'

// foo.js
export const a = 'foo'
export const b = 'foo'

// bar.js
export const a  = 'bar'

Expected

// foo.js
export const b = 'foo';