fix(transformer): JSX source: add var _jsxFileName statement

crates/oxc_transformer/src/react/jsx_source.rs

@@ -59,6 +59,12 @@ impl<'a> ReactJsxSource<'a> {
 }
 
 impl<'a> Traverse<'a> for ReactJsxSource<'a> {
+    fn exit_program(&mut self, program: &mut Program<'a>, _ctx: &mut TraverseCtx<'a>) {
+        if let Some(stmt) = self.get_var_file_name_statement() {
+            program.body.insert(0, stmt);
+        }
+    }
+
     fn enter_jsx_opening_element(
         &mut self,
         elem: &mut JSXOpeningElement<'a>,

crates/oxc_transformer/src/react/mod.rs

@@ -84,6 +84,8 @@ impl<'a> Traverse<'a> for React<'a> {
         }
         if self.jsx_plugin {
             self.jsx.exit_program(program, ctx);
+        } else if self.jsx_source_plugin {
+            self.jsx.jsx_source.exit_program(program, ctx);
         }
     }
 

tasks/transform_conformance/oxc.snap.md

@@ -1,12 +1,13 @@
 commit: 3bcfee23
 
-Passed: 46/56
+Passed: 47/57
 
 # All Passed:
 * babel-plugin-transform-nullish-coalescing-operator
 * babel-plugin-transform-optional-catch-binding
 * babel-plugin-transform-arrow-functions
 * babel-preset-typescript
+* babel-plugin-transform-react-jsx-source
 * regexp
 
 

tasks/transform_conformance/tests/babel-plugin-transform-react-jsx-source/test/fixtures/react-source/basic-sample/input.jsx

@@ -0,0 +1 @@
+var x = <sometag />;

tasks/transform_conformance/tests/babel-plugin-transform-react-jsx-source/test/fixtures/react-source/basic-sample/output.jsx

@@ -0,0 +1,6 @@
+var _jsxFileName = "<CWD>/tests/babel-plugin-transform-react-jsx-source/test/fixtures/react-source/basic-sample/input.jsx";
+var x = <sometag __source={{
+  fileName: _jsxFileName,
+  lineNumber: 1,
+  columnNumber: 9
+}} />;

tasks/transform_conformance/tests/babel-plugin-transform-react-jsx-source/test/fixtures/react-source/options.json

@@ -0,0 +1,3 @@
+{
+  "plugins": ["syntax-jsx", "transform-react-jsx-source"]
+}