fix(core): throw error when passing unsupported Node.js version in browserslist query

Author: hardfist

crates/node_binding/napi-binding.d.ts

@@ -1507,7 +1507,7 @@ export interface KnownAssetInfo {
   isOverSizeLimit?: boolean
 }
 
-export declare function loadBrowserslist(input: string | undefined | null, context: string): Array<string> | null
+export declare function loadBrowserslist(input: string | undefined | null, context: string): Array<string>
 
 export declare function minify(source: string, options: string): Promise<TransformOutput>
 

crates/rspack/src/builder/browserslist_target.rs

@@ -349,8 +349,7 @@ mod tests {
       .to_string();
 
     // Example: Load browsers list, pass query string or None for default config
-    let browsers =
-      load_browserslist(Some("last 2 versions, not dead"), &context).unwrap_or_default();
+    let browsers = load_browserslist(Some("last 2 versions, not dead"), &context).unwrap();
 
     println!("browsers: {browsers:?}");
 
@@ -359,6 +358,21 @@ mod tests {
 
     println!("prop: {properties:#?}")
   }
+  #[test]
+  fn test_unsupported_node_version() {
+    let context = std::env::current_dir()
+      .unwrap()
+      .to_str()
+      .unwrap()
+      .to_string();
+
+    // Example: Load browsers list, pass query string or None for default config
+    let browsers_error = load_browserslist(Some("node 30.6.0"), &context).unwrap_err();
+    assert_eq!(
+      browsers_error.to_string(),
+      "missing config for Browserslist environment 'node 30.6.0'"
+    );
+  }
 
   #[test]
   fn test_browserslist_targets_snapshots() {

crates/rspack/src/builder/mod.rs

@@ -898,8 +898,7 @@ impl CompilerOptionsBuilder {
     });
 
     let target = f!(self.target.take(), || {
-      let use_browserlist =
-        rspack_browserslist::load_browserslist(None, context.as_str()).is_some();
+      let use_browserlist = rspack_browserslist::load_browserslist(None, context.as_str()).is_ok();
 
       // If it's not able to find config with regard to context, then `browserslist_rs` will fallback to default query,
       // making it always a non-empty value.

crates/rspack_binding_api/src/browserslist.rs

@@ -1,4 +1,8 @@
 #[napi]
-pub fn load_browserslist(input: Option<String>, context: String) -> Option<Vec<String>> {
+pub fn load_browserslist(
+  input: Option<String>,
+  context: String,
+) -> Result<Vec<String>, napi::Error> {
   rspack_browserslist::load_browserslist(input.as_deref(), context.as_str())
+    .map_err(|e| napi::Error::from_reason(format!("Failed to load browserslist: {}", e)))
 }

crates/rspack_browserslist/src/lib.rs

@@ -1,5 +1,5 @@
 mod lightningcss;
 mod load_config;
-
+pub use browserslist::Error;
 pub use lightningcss::browserslist_to_lightningcss_targets;
 pub use load_config::load_browserslist;

crates/rspack_browserslist/src/load_config.rs

@@ -1,4 +1,4 @@
-use browserslist::Opts;
+use browserslist::{Error, Opts};
 
 /// Configuration parsed from input string and context directory
 #[derive(Debug, Default)]
@@ -69,16 +69,20 @@ pub fn parse<'a>(input: Option<&str>, context: &'a str) -> BrowserslistHandlerCo
 }
 
 /// Loads the browsers list based on the input and context.
-pub fn load_browserslist(input: Option<&str>, context: &str) -> Option<Vec<String>> {
+pub fn load_browserslist(input: Option<&str>, context: &str) -> Result<Vec<String>, Error> {
+  dbg!(context);
   let BrowserslistHandlerConfig {
     config_path,
     env,
     env_or_query,
     query,
     context,
   } = parse(input, context);
-
-  let mut opts = Opts::default();
+  // don't support unknown Node.js version, align with babel
+  let mut opts = Opts {
+    throw_on_missing: true,
+    ..Default::default()
+  };
   if let Some(config) = config_path {
     opts.config = Some(config);
   } else {
@@ -122,7 +126,7 @@ pub fn load_browserslist(input: Option<&str>, context: &str) -> Option<Vec<Strin
       browserslist::execute(&opts)
     }
   } {
-    Ok(browsers) => Some(browsers.into_iter().map(|d| d.to_string()).collect()),
-    Err(_) => None,
+    Ok(browsers) => Ok(browsers.into_iter().map(|d| d.to_string()).collect()),
+    Err(err) => Err(err),
   }
 }

tests/rspack-test/configCases/errors/wrong-browserslist/errors.js

@@ -0,0 +1,2 @@
+module.exports = [[/Failed to load browserslist: unknown Node.js version: 32.8.0/]]
+

tests/rspack-test/configCases/errors/wrong-browserslist/index.js

@@ -0,0 +1 @@
+// empty

tests/rspack-test/configCases/errors/wrong-browserslist/package.json

@@ -0,0 +1,5 @@
+{
+  "browserslist": [
+    "node 32.8.0"
+  ]
+}

tests/rspack-test/configCases/errors/wrong-browserslist/rspack.config.js

@@ -0,0 +1,7 @@
+module.exports = {
+	context: __dirname,
+	entry: {
+		main: './index.js'
+	},
+	target:['browserslist']
+}