feat(plugin-asset): support re-export and preserve-import in asset for Rslib

crates/node_binding/binding.d.ts

@@ -1129,6 +1129,8 @@ export interface RawAssetGeneratorOptions {
   outputPath?: JsFilename
   publicPath?: "auto" | JsFilename
   dataUrl?: RawAssetGeneratorDataUrlOptions | ((source: Buffer, context: RawAssetGeneratorDataUrlFnCtx) => string)
+  experimentalLibReExport?: boolean
+  experimentalLibPreserveImport?: boolean
 }
 
 export interface RawAssetInlineGeneratorOptions {
@@ -1153,6 +1155,8 @@ export interface RawAssetResourceGeneratorOptions {
   filename?: JsFilename
   outputPath?: JsFilename
   publicPath?: "auto" | JsFilename
+  experimentalLibPreserveImport?: boolean
+  experimentalLibReExport?: boolean
 }
 
 export interface RawBannerPluginOptions {

crates/rspack_binding_options/src/options/raw_module/mod.rs

@@ -504,6 +504,9 @@ pub struct RawAssetGeneratorOptions {
     ts_type = "RawAssetGeneratorDataUrlOptions | ((source: Buffer, context: RawAssetGeneratorDataUrlFnCtx) => string)"
   )]
   pub data_url: Option<RawAssetGeneratorDataUrl>,
+
+  pub experimental_lib_re_export: Option<bool>,
+  pub experimental_lib_preserve_import: Option<bool>,
 }
 
 impl From<RawAssetGeneratorOptions> for AssetGeneratorOptions {
@@ -516,6 +519,8 @@ impl From<RawAssetGeneratorOptions> for AssetGeneratorOptions {
       data_url: value
         .data_url
         .map(|i| RawAssetGeneratorDataUrlWrapper(i).into()),
+      experimental_lib_re_export: value.experimental_lib_re_export,
+      experimental_lib_preserve_import: value.experimental_lib_preserve_import,
     }
   }
 }
@@ -548,6 +553,9 @@ pub struct RawAssetResourceGeneratorOptions {
   pub output_path: Option<JsFilename>,
   #[napi(ts_type = "\"auto\" | JsFilename")]
   pub public_path: Option<JsFilename>,
+
+  pub experimental_lib_preserve_import: Option<bool>,
+  pub experimental_lib_re_export: Option<bool>,
 }
 
 impl From<RawAssetResourceGeneratorOptions> for AssetResourceGeneratorOptions {
@@ -557,6 +565,8 @@ impl From<RawAssetResourceGeneratorOptions> for AssetResourceGeneratorOptions {
       filename: value.filename.map(|i| i.into()),
       output_path: value.output_path.map(|i| i.into()),
       public_path: value.public_path.map(|i| i.into()),
+      experimental_lib_preserve_import: value.experimental_lib_preserve_import,
+      experimental_lib_re_export: value.experimental_lib_re_export,
     }
   }
 }

crates/rspack_core/src/options/module.rs

@@ -383,6 +383,8 @@ pub struct AssetResourceGeneratorOptions {
   pub filename: Option<Filename>,
   pub output_path: Option<Filename>,
   pub public_path: Option<PublicPath>,
+  pub experimental_lib_re_export: Option<bool>,
+  pub experimental_lib_preserve_import: Option<bool>,
 }
 
 #[cacheable]
@@ -393,6 +395,8 @@ pub struct AssetGeneratorOptions {
   pub output_path: Option<Filename>,
   pub public_path: Option<PublicPath>,
   pub data_url: Option<AssetGeneratorDataUrl>,
+  pub experimental_lib_re_export: Option<bool>,
+  pub experimental_lib_preserve_import: Option<bool>,
 }
 
 pub struct AssetGeneratorDataUrlFnCtx<'a> {

crates/rspack_plugin_asset/src/lib.rs

@@ -432,7 +432,6 @@ impl ParserAndGenerator for AssetParserAndGenerator {
         let exported_content = if parsed_asset_config.is_inline() {
           let resource_data: &ResourceData = normal_module.resource_resolved_data();
           let data_url = module_generator_options.and_then(|x| x.asset_data_url());
-
           let encoded_source: String;
 
           if let Some(custom_data_url) =
@@ -522,6 +521,59 @@ impl ParserAndGenerator for AssetParserAndGenerator {
         } else {
           unreachable!()
         };
+
+        let experimental_lib_preserve_import = module_generator_options
+          .and_then(|x| x.get_asset())
+          .and_then(|x| x.experimental_lib_preserve_import)
+          .or_else(|| {
+            module_generator_options
+              .and_then(|x| x.get_asset_resource())
+              .and_then(|x| x.experimental_lib_preserve_import)
+          })
+          .unwrap_or(false);
+        let experimental_lib_re_export = module_generator_options
+          .and_then(|x| x.get_asset())
+          .and_then(|x| x.experimental_lib_re_export)
+          .or_else(|| {
+            module_generator_options
+              .and_then(|x| x.get_asset_resource())
+              .and_then(|x| x.experimental_lib_re_export)
+          })
+          .unwrap_or(false);
+
+        if experimental_lib_preserve_import || experimental_lib_re_export {
+          let Some(PublicPath::Auto) = module_generator_options.and_then(|x| x.asset_public_path())
+          else {
+            return Err(error!(
+              "`experimentalLibPreserveImport` and `experimentalLibReExport` can only be used with `asset/resource` and `publicPath: 'auto'`"
+            ));
+          };
+
+          if let Some(ref mut scope) = generate_context.concatenation_scope {
+            scope.register_namespace_export(NAMESPACE_OBJECT_EXPORT);
+            return Ok(if experimental_lib_re_export {
+              RawStringSource::from(format!(
+                r#"import {NAMESPACE_OBJECT_EXPORT} from {exported_content};
+export default {NAMESPACE_OBJECT_EXPORT};"#
+              ))
+              .boxed()
+            } else {
+              RawStringSource::from(format!(
+                r#"import {NAMESPACE_OBJECT_EXPORT} from {exported_content};"#
+              ))
+              .boxed()
+            });
+          } else {
+            generate_context
+              .runtime_requirements
+              .insert(RuntimeGlobals::MODULE);
+            return Ok(
+              RawStringSource::from(format!(r#"module.exports = require({exported_content})"#))
+                .boxed(),
+            );
+          }
+        }
+
         if let Some(ref mut scope) = generate_context.concatenation_scope {
           scope.register_namespace_export(NAMESPACE_OBJECT_EXPORT);
           let supports_const = compilation.options.output.environment.supports_const();

crates/rspack_plugin_javascript/src/plugin/module_concatenation_plugin.rs

@@ -555,6 +555,9 @@ impl ModuleConcatenationPlugin {
     let box_module = module_graph
       .module_by_identifier(&root_module_id)
       .expect("should have module");
+    let root_module_source_types = box_module.source_types();
+    let is_root_module_asset_module = root_module_source_types.contains(&SourceType::Asset);
+
     let root_module_ctxt = RootModuleContext {
       id: root_module_id,
       readable_identifier: box_module
@@ -677,8 +680,26 @@ impl ModuleConcatenationPlugin {
     //   .module_identifier_to_module
     //   .remove(&root_module_id);
     // compilation.chunk_graph.clear
+    if is_root_module_asset_module {
+      chunk_graph.replace_module(&root_module_id, &new_module.id());
+      chunk_graph.add_module(root_module_id);
+      for chunk_ukey in chunk_graph.get_module_chunks(new_module.id()).clone() {
+        let module = module_graph
+          .module_by_identifier(&root_module_id)
+          .expect("should exist module");
 
-    chunk_graph.replace_module(&root_module_id, &new_module.id());
+        let source_types = chunk_graph.get_chunk_module_source_types(&chunk_ukey, module);
+        let new_source_types = source_types
+          .iter()
+          .filter(|source_type| !matches!(source_type, SourceType::JavaScript))
+          .copied()
+          .collect();
+        chunk_graph.set_chunk_modules_source_types(&chunk_ukey, root_module_id, new_source_types);
+        chunk_graph.connect_chunk_and_module(chunk_ukey, root_module_id);
+      }
+    } else {
+      chunk_graph.replace_module(&root_module_id, &new_module.id());
+    }
 
     module_graph.move_module_connections(&root_module_id, &new_module.id(), |c, dep| {
       let other_module = if *c.module_identifier() == root_module_id {

packages/rspack/etc/core.api.md

@@ -203,6 +203,8 @@ export type AssetResourceGeneratorOptions = {
     filename?: Filename;
     outputPath?: AssetModuleOutputPath;
     publicPath?: PublicPath;
+    experimentalLibReExport?: boolean;
+    experimentalLibPreserveImport?: boolean;
 };
 
 // @public (undocumented)

packages/rspack/src/config/adapter.ts

@@ -816,7 +816,9 @@ function getRawAssetResourceGeneratorOptions(
 		emit: options.emit,
 		filename: options.filename,
 		outputPath: options.outputPath,
-		publicPath: options.publicPath
+		publicPath: options.publicPath,
+		experimentalLibReExport: options.experimentalLibReExport,
+		experimentalLibPreserveImport: options.experimentalLibPreserveImport
 	};
 }
 

packages/rspack/src/config/types.ts

@@ -1147,6 +1147,11 @@ export type AssetResourceGeneratorOptions = {
 
 	/** This option determines the URL prefix of the referenced 'asset' or 'asset/resource'*/
 	publicPath?: PublicPath;
+
+	/** */
+	experimentalLibReExport?: boolean;
+	/** */
+	experimentalLibPreserveImport?: boolean;
 };
 
 /** Generator options for asset modules. */