fix(core): fix regex external not working

.changeset/clever-pianos-help.md

@@ -0,0 +1,5 @@
+---
+"@rspack/binding": patch
+---
+
+fix regex external not working

crates/rspack_binding_options/src/options/raw_external.rs

@@ -2,6 +2,7 @@ use std::collections::HashMap;
 
 use napi_derive::napi;
 use rspack_core::ExternalItem;
+use rspack_regex::RspackRegex;
 use serde::Deserialize;
 
 #[derive(Deserialize, Debug, Clone)]
@@ -23,11 +24,14 @@ impl From<RawExternalItem> for ExternalItem {
           .string_payload
           .expect("should have a string_payload when RawExternalItem.type is \"string\""),
       ),
-      "regexp" => Self::from(
-        value
+      "regexp" => {
+        let payload = value
           .regexp_payload
-          .expect("should have a regexp_payload when RawExternalItem.type is \"regexp\""),
-      ),
+          .expect("should have a regexp_payload when RawExternalItem.type is \"regexp\"");
+        let reg =
+          RspackRegex::new(&payload).expect("regex_payload is not a legal regex in rust side");
+        Self::from(reg)
+      }
       "object" => Self::from(
         value
           .object_payload

packages/rspack/tests/configCases/externals/array-externals/index.js

@@ -2,6 +2,7 @@ import "./inject";
 
 import foo from "foo";
 const bar = require("bar");
+const react = require("react");
 
 it("should work with array type of externals", function () {
 	expect(foo).toBe("foo");

packages/rspack/tests/configCases/externals/array-externals/inject.js

@@ -1,2 +1,3 @@
 global.foo = "foo";
 global.bar = "bar";
+global.react = "react";

packages/rspack/tests/configCases/externals/array-externals/webpack.config.js

@@ -1,3 +1,3 @@
 module.exports = {
-	externals: ["foo", "bar"]
+	externals: ["foo", "bar", /^re/]
 };