feat(napi/transformer): add jsx option to force parsing with jsx (#…

…4133)

To mimic the esbuild `loader=jsx` or babel `babel-plugin-syntax-jsx` behavior.

napi/transform/index.d.ts

@@ -3,6 +3,12 @@
 
 /* auto-generated by NAPI-RS */
 
+export interface IsolatedDeclarationsResult {
+  sourceText: string
+  errors: Array<string>
+}
+/** TypeScript Isolated Declarations for Standalone DTS Emit */
+function isolatedDeclaration(filename: string, sourceText: string): IsolatedDeclarationsResult
 export interface TypeScriptBindingOptions {
   jsxPragma?: string
   jsxPragmaFrag?: string
@@ -27,7 +33,10 @@ export interface ArrowFunctionsBindingOptions {
 export interface Es2015BindingOptions {
   arrowFunction?: ArrowFunctionsBindingOptions
 }
-export interface TransformBindingOptions {
+export interface TransformOptions {
+  sourceType?: 'script' | 'module' | 'unambiguous' | undefined
+  /** Force jsx parsing, */
+  jsx?: boolean
   typescript?: TypeScriptBindingOptions
   react?: ReactBindingOptions
   es2015?: Es2015BindingOptions
@@ -53,10 +62,4 @@ export interface TransformResult {
   map?: Sourcemap
   errors: Array<string>
 }
-function transform(filename: string, sourceText: string, options?: TransformBindingOptions | undefined | null): TransformResult
-export interface IsolatedDeclarationsResult {
-  sourceText: string
-  errors: Array<string>
-}
-/** TypeScript Isolated Declarations for Standalone DTS Emit */
-function isolatedDeclaration(filename: string, sourceText: string): IsolatedDeclarationsResult
+function transform(filename: string, sourceText: string, options?: TransformOptions | undefined | null): TransformResult

napi/transform/index.js

@@ -310,7 +310,7 @@ if (!nativeBinding) {
   throw new Error(`Failed to load native binding`)
 }
 
-const { transform, isolatedDeclaration } = nativeBinding
+const { isolatedDeclaration, transform } = nativeBinding
 
-module.exports.transform = transform
 module.exports.isolatedDeclaration = isolatedDeclaration
+module.exports.transform = transform

napi/transform/src/transformer.rs

@@ -96,6 +96,8 @@ impl From<ES2015BindingOptions> for ES2015Options {
 pub struct TransformOptions {
     #[napi(ts_type = "'script' | 'module' | 'unambiguous' | undefined")]
     pub source_type: Option<String>,
+    /// Force jsx parsing,
+    pub jsx: Option<bool>,
     pub typescript: Option<TypeScriptBindingOptions>,
     pub react: Option<ReactBindingOptions>,
     pub es2015: Option<ES2015BindingOptions>,
@@ -145,11 +147,19 @@ pub fn transform(
     let sourcemap = options.as_ref().is_some_and(|x| x.sourcemap.unwrap_or_default());
     let mut errors = vec![];
 
-    let source_type = SourceType::from_path(&filename).unwrap_or_default();
-    let source_type = match options.as_ref().and_then(|options| options.source_type.as_deref()) {
-        Some("script") => source_type.with_script(true),
-        Some("module") => source_type.with_module(true),
-        _ => source_type,
+    let source_type = {
+        let mut source_type = SourceType::from_path(&filename).unwrap_or_default();
+        // Force `script` or `module`
+        match options.as_ref().and_then(|options| options.source_type.as_deref()) {
+            Some("script") => source_type = source_type.with_script(true),
+            Some("module") => source_type = source_type.with_module(true),
+            _ => {}
+        }
+        // Force `jsx`
+        if let Some(jsx) = options.as_ref().and_then(|options| options.jsx.as_ref()) {
+            source_type = source_type.with_jsx(*jsx);
+        }
+        source_type
     };
 
     let allocator = Allocator::default();