fix: allow cjs to be both entry and dependency (#336)

<!-- Thank you for contributing! -->

### Description

<!-- 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? -->

---

crates/rolldown/src/bundler/stages/bundle_stage.rs

@@ -13,10 +13,10 @@ use crate::{
     stages::link_stage::LinkStageOutput,
     utils::bitset::BitSet,
   },
-  InputOptions, Output,
+  InputOptions, Output, OutputFormat,
 };
 use index_vec::{index_vec, IndexVec};
-use rolldown_common::{ImportKind, ModuleId, SymbolRef};
+use rolldown_common::{ExportsKind, ImportKind, ModuleId, SymbolRef};
 use rustc_hash::{FxHashMap, FxHashSet};
 
 pub struct BundleStage<'a> {
@@ -101,7 +101,7 @@ impl<'a> BundleStage<'a> {
   }
 
   // TODO(hyf0): refactor this function
-  #[allow(clippy::too_many_lines)]
+  #[allow(clippy::too_many_lines, clippy::cognitive_complexity)]
   fn compute_cross_chunk_links(&mut self, chunk_graph: &mut ChunkGraph) {
     // Determine which symbols belong to which chunk
     let mut chunk_meta_imports_vec =
@@ -144,7 +144,16 @@ impl<'a> BundleStage<'a> {
 
       if let Some(entry_module) = chunk.entry_module {
         let entry_module = &self.link_output.modules[entry_module];
-        let entry_linking_info = &self.link_output.linking_infos[entry_module.id()];
+        let Module::Normal(entry_module) = entry_module else {
+          return;
+        };
+        let entry_linking_info = &self.link_output.linking_infos[entry_module.id];
+        if matches!(entry_module.exports_kind, ExportsKind::CommonJs)
+          && matches!(self.output_options.format, OutputFormat::Esm)
+        {
+          chunk_meta_imports
+            .insert(entry_linking_info.wrapper_ref.expect("cjs should be wrapped in esm output"));
+        }
         for export_ref in entry_linking_info.resolved_exports.values() {
           let mut canonical_ref = self.link_output.symbols.canonical_ref_for(export_ref.symbol_ref);
           let symbol = self.link_output.symbols.get(canonical_ref);

crates/rolldown/tests/fixtures/misc/cjs_entry_as_dependency/_test.mjs

@@ -0,0 +1,4 @@
+import assert from 'assert'
+import main from './dist/main.mjs'
+import main2 from './dist/main2.mjs'
+assert(main === main2)

crates/rolldown/tests/fixtures/misc/cjs_entry_as_dependency/artifacts.snap

@@ -0,0 +1,46 @@
+---
+source: crates/rolldown/tests/common/case.rs
+expression: content
+input_file: crates/rolldown/tests/fixtures/misc/cjs_entry_as_dependency
+---
+# Assets
+
+## 2.mjs
+
+```js
+import { __commonJS } from "./_rolldown_runtime.mjs";
+
+// main2.js
+var require_main2 = __commonJS({
+	'main2.js'(exports, module) {
+		module.exports = {}
+
+	}
+});
+export { require_main2 };
+```
+## main.mjs
+
+```js
+import { __commonJS, __toESM } from "./_rolldown_runtime.mjs";
+import { require_main2 } from "./2.mjs";
+
+// main.js
+var require_main = __commonJS({
+	'main.js'(exports, module) {
+		var import_main2 = __toESM(require_main2());
+
+		module.exports = import_main2.default
+
+
+	}
+});
+export default require_main();
+```
+## main2.mjs
+
+```js
+import { require_main2 } from "./2.mjs";
+
+export default require_main2();
+```

crates/rolldown/tests/fixtures/misc/cjs_entry_as_dependency/main.js

@@ -0,0 +1,3 @@
+import main2 from './main2.js'
+module.exports = main2
+

crates/rolldown/tests/fixtures/misc/cjs_entry_as_dependency/main2.js

@@ -0,0 +1 @@
+module.exports = {}

crates/rolldown/tests/fixtures/misc/cjs_entry_as_dependency/test.config.json

@@ -0,0 +1,14 @@
+{
+  "input": {
+    "input": [
+      {
+        "name": "main",
+        "import": "./main.js"
+      },
+      {
+        "name": "main2",
+        "import": "./main2.js"
+      }
+    ]
+  }
+}