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feat: treat required module with ExportKind::None as commonjs #319

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merged 1 commit into from
Nov 19, 2023

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hyf0
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@hyf0 hyf0 commented Nov 18, 2023

Description

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@@ -8,7 +8,7 @@ input_file: crates/rolldown/tests/esbuild/default/require_main_cache_common_js
## entry_js.mjs

```js
import { __commonJS } from "./_rolldown_runtime.mjs";
import { __commonJS, __toESM } from "./_rolldown_runtime.mjs";
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Unused __toESM generated because referencing symbols by module type not actually usages.

Related code:

https://github.com/rolldown-rs/rolldown/blob/94f5ddd7d8b5f02006bb17cfdd95544f989fe376/crates/rolldown/src/bundler/linker/linker.rs#L238-L258

const value = 1;
// esm-import-cjs-export.js
var require_esm_import_cjs_export = __commonJS({
'esm-import-cjs-export.js'(exports, module) {
init_foo();
var import_foo$1 = __toESM(require_foo());
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Should beimport_foo instead of import_foo$1. This cause by the same reason, we generated symbols that we don't used.

@underfin
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I looked into the code, but have a question about your pr fix.

const ABC = 1;

With your implementation, the module will have ExportKind::None, but the module generate code is not wrapped with __commonJs.

Can you point to me what i missed?

@@ -97,6 +114,217 @@ impl LinkStage {
"runtime module should always be the first module in the sorted modules"
);
}

fn determine_module_exports_kind(&mut self) {
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Why here need to prepare determine module exports kind? I'm not understand to this, can you explain to it?

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Of course. The reason is we need to determine the ExportsKind of modules, we need the information while wrapping the modules.

@hyf0
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hyf0 commented Nov 19, 2023

I looked into the code, but have a question about your pr fix.

const ABC = 1;

With your implementation, the module will have ExportKind::None, but the module generate code is not wrapped with __commonJs.

Can you point to me what i missed?

I looked into the code, but have a question about your pr fix.

const ABC = 1;

With your implementation, the module will have ExportKind::None, but the module generate code is not wrapped with __commonJs.

Can you point to me what i missed?

https://github.com/rolldown-rs/rolldown/pull/319/files#diff-eef021adf45cf3a638e3dbb95392baf7706bb3367c6465c74375b36f5709232eR133-R144

required module with ExportKind:None would be considered as commonjs module.

@hyf0 hyf0 changed the title feat: treat module with ExportKind::None as commonjs feat: treat required module with ExportKind::None as commonjs Nov 19, 2023

module.import_records.iter().for_each(|rec| {
wrap_module(ctx, rec.resolved_module);
if rec.kind.is_static() {}
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here look like has a error

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Good catch. Wonder why clippy doesn't catch this.

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Let's me fix it in another PR. Too much PRs to be restacked now.

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hyf0 commented Nov 19, 2023

Merge activity

  • Nov 19, 6:40 AM: @hyf0 started a stack merge that includes this pull request via Graphite.
  • Nov 19, 6:40 AM: Graphite rebased this pull request as part of a merge.
  • Nov 19, 6:41 AM: @hyf0 merged this pull request with Graphite.

Base automatically changed from 11-17-feat_empty_module_should_have_ExportsKind_None_ to main November 19, 2023 11:40
@hyf0 hyf0 force-pushed the 11-18-feat_treat_module_with_ExportKind_None_as_commonjs branch from c76267b to 126378c Compare November 19, 2023 11:40
@hyf0 hyf0 merged commit 0738ad8 into main Nov 19, 2023
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@hyf0 hyf0 deleted the 11-18-feat_treat_module_with_ExportKind_None_as_commonjs branch November 19, 2023 11:41
hyf0 added a commit that referenced this pull request Nov 19, 2023
<!-- Thank you for contributing! -->

### Description

The fix is done by more delicate analyzing the module type and import kind.

This also fixes #319 (comment).

<!-- Please insert your description here and provide especially info about the "what" this PR is solving -->

### Test Plan

<!-- e.g. is there anything you'd like reviewers to focus on? -->

---
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2 participants