feat: implement compiler options for transpile (#113)

js/mod.ts

@@ -76,7 +76,8 @@ export interface TranspileOptions {
   cacheRoot?: string;
   /** The setting to use when loading sources from the Deno cache. */
   cacheSetting?: CacheSetting;
-  //compilerOptions?: CompilerOptions;
+  /** Compiler options which can be set when transpiling. */
+  compilerOptions?: CompilerOptions;
   //imports: Record<string, string[]>;
   /** Override the default loading mechanism with a custom loader. This can
    * provide a way to use "in-memory" resources instead of fetching them
@@ -187,14 +188,18 @@ export async function transpile(
   options: TranspileOptions = {},
 ): Promise<Record<string, string>> {
   root = root instanceof URL ? root : toFileUrl(resolve(root));
-  const { cacheSetting, cacheRoot, allowRemote, load } = options;
+  const { cacheSetting, cacheRoot, allowRemote, load, compilerOptions } =
+    options;
+
+  checkCompilerOptions(compilerOptions);
+
   let transpileLoad = load;
   if (!transpileLoad) {
     const cache = createCache({ root: cacheRoot, cacheSetting, allowRemote });
     transpileLoad = cache.load;
   }
-  const { transpile } = await instantiate();
-  return transpile(root.toString(), transpileLoad, undefined);
+  const { transpile: jsTranspile } = await instantiate();
+  return jsTranspile(root.toString(), transpileLoad, compilerOptions);
 }
 
 function checkCompilerOptions(

rs-lib/src/emit.rs

@@ -54,6 +54,10 @@ pub struct BundleOptions {
   pub emit_ignore_directives: bool,
 }
 
+pub struct TranspileOptions {
+  pub emit_options: EmitOptions,
+}
+
 #[derive(Debug)]
 pub struct BundleEmit {
   pub code: String,

rs-lib/src/lib.rs

@@ -16,6 +16,7 @@ pub use emit::bundle_graph;
 pub use emit::BundleEmit;
 pub use emit::BundleOptions;
 pub use emit::BundleType;
+pub use emit::TranspileOptions;
 
 pub use deno_ast::EmitOptions;
 pub use deno_ast::ImportsNotUsedAsValues;
@@ -27,7 +28,7 @@ pub async fn bundle(
   root: ModuleSpecifier,
   loader: &mut dyn Loader,
   maybe_imports_map: Option<Vec<(ModuleSpecifier, Vec<String>)>>,
-  bundle_options: BundleOptions,
+  options: BundleOptions,
 ) -> Result<BundleEmit> {
   let mut graph = ModuleGraph::default();
   graph
@@ -45,12 +46,13 @@ pub async fn bundle(
     )
     .await;
 
-  bundle_graph(&graph, bundle_options)
+  bundle_graph(&graph, options)
 }
 
 pub async fn transpile(
   root: ModuleSpecifier,
   loader: &mut dyn Loader,
+  options: TranspileOptions,
 ) -> Result<HashMap<String, String>> {
   let analyzer = CapturingModuleAnalyzer::default();
   let mut graph = ModuleGraph::default();
@@ -71,16 +73,18 @@ pub async fn transpile(
 
   for module in graph.modules().filter_map(|m| m.esm()) {
     if let Some(parsed_source) = analyzer.get_parsed_source(&module.specifier) {
-      // TODO: add emit options
-      let emit_options = Default::default();
-      let transpiled_source = parsed_source.transpile(&emit_options)?;
+      let transpiled_source = parsed_source.transpile(&options.emit_options)?;
 
       map.insert(module.specifier.to_string(), transpiled_source.text);
-      if let Some(source_map) = &transpiled_source.source_map {
-        map.insert(
-          format!("{}.map", module.specifier.as_str()),
-          source_map.to_string(),
-        );
+      // TODO: Understand why parsed_source.transpile returns a source map
+      // even when options.emit_options.source_map is false.
+      if options.emit_options.source_map {
+        if let Some(source_map) = &transpiled_source.source_map {
+          map.insert(
+            format!("{}.map", module.specifier.as_str()),
+            source_map.to_string(),
+          );
+        }
       }
     }
   }

tests/__snapshots__/common/export_specifier_with_alias/transpile/local/exports_with_alias.ts

@@ -2,4 +2,3 @@ export { foo as test1 } from "./subdir/foo.ts";
 export { foo as test2 } from "./subdir/foo.ts";
 import { foo } from "./subdir/foo.ts";
 console.log(foo);
-//# sourceMappingURL=data:application/json;base64,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

tests/__snapshots__/common/export_specifier_with_alias/transpile/local/subdir/foo.ts

@@ -1,2 +1 @@
 export const foo = "foo";
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbImZpbGU6Ly8vc3ViZGlyL2Zvby50cyJdLCJzb3VyY2VzQ29udGVudCI6WyJleHBvcnQgY29uc3QgZm9vOiBzdHJpbmcgPSBcImZvb1wiO1xuIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUFBLE9BQU8sTUFBTSxNQUFjLE1BQU0ifQ==

tests/__snapshots__/common/exports/transpile/local/mod1.ts

@@ -11,4 +11,3 @@ export function printHello3() {
 export function throwsError() {
     throw Error("exception from mod1");
 }
-//# sourceMappingURL=data:application/json;base64,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

tests/__snapshots__/common/exports/transpile/local/subdir/mod2.ts

@@ -5,4 +5,3 @@ export function returnsFoo() {
 export function printHello2() {
     printHello();
 }
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbImZpbGU6Ly8vc3ViZGlyL21vZDIudHMiXSwic291cmNlc0NvbnRlbnQiOlsiaW1wb3J0IHsgcHJpbnRIZWxsbyB9IGZyb20gXCIuL3ByaW50X2hlbGxvLnRzXCI7XG5cbmV4cG9ydCBmdW5jdGlvbiByZXR1cm5zRm9vKCk6IHN0cmluZyB7XG4gIHJldHVybiBcIkZvb1wiO1xufVxuXG5leHBvcnQgZnVuY3Rpb24gcHJpbnRIZWxsbzIoKSB7XG4gIHByaW50SGVsbG8oKTtcbn1cbiJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSxTQUFTLFVBQVUsUUFBUSxtQkFBbUI7QUFFOUMsT0FBTyxTQUFTLGFBQXFCO0lBQ25DLE9BQU87QUFDVCxDQUFDO0FBRUQsT0FBTyxTQUFTLGNBQWM7SUFDNUI7QUFDRixDQUFDIn0=

tests/__snapshots__/common/exports/transpile/local/subdir/print_hello.ts

@@ -1,4 +1,3 @@
 export function printHello() {
     console.log("Hello");
 }
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbImZpbGU6Ly8vc3ViZGlyL3ByaW50X2hlbGxvLnRzIl0sInNvdXJjZXNDb250ZW50IjpbImV4cG9ydCBmdW5jdGlvbiBwcmludEhlbGxvKCkge1xuICBjb25zb2xlLmxvZyhcIkhlbGxvXCIpO1xufVxuIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUFBLE9BQU8sU0FBUyxhQUFhO0lBQzNCLFFBQVEsR0FBRyxDQUFDO0FBQ2QsQ0FBQyJ9

tests/__snapshots__/common/file_url_as_object/transpile/local/hello_world.ts

@@ -1,2 +1 @@
 console.log("Hello world!");
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbImZpbGU6Ly8vaGVsbG9fd29ybGQudHMiXSwic291cmNlc0NvbnRlbnQiOlsiY29uc29sZS5sb2coXCJIZWxsbyB3b3JsZCFcIik7XG4iXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6IkFBQUEsUUFBUSxHQUFHLENBQUMifQ==

tests/__snapshots__/common/hello_world/transpile/local/hello_world.ts

@@ -1,2 +1 @@
 console.log("Hello world!");
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbImZpbGU6Ly8vaGVsbG9fd29ybGQudHMiXSwic291cmNlc0NvbnRlbnQiOlsiY29uc29sZS5sb2coXCJIZWxsbyB3b3JsZCFcIik7XG4iXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6IkFBQUEsUUFBUSxHQUFHLENBQUMifQ==

tests/__snapshots__/common/hello_world_relative_path/transpile/local/hello_world.ts

@@ -1,2 +1 @@
 console.log("Hello world!");
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbImZpbGU6Ly8vaGVsbG9fd29ybGQudHMiXSwic291cmNlc0NvbnRlbnQiOlsiY29uc29sZS5sb2coXCJIZWxsbyB3b3JsZCFcIik7XG4iXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6IkFBQUEsUUFBUSxHQUFHLENBQUMifQ==

tests/__snapshots__/common/js/transpile/local/js_module.js

@@ -1,2 +1 @@
 export { foo } from "./subdir/foo.js";
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbImZpbGU6Ly8vanNfbW9kdWxlLmpzIl0sInNvdXJjZXNDb250ZW50IjpbImV4cG9ydCB7IGZvbyB9IGZyb20gXCIuL3N1YmRpci9mb28uanNcIjtcbiJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSxTQUFTLEdBQUcsUUFBUSxrQkFBa0IifQ==

tests/__snapshots__/common/js/transpile/local/subdir/foo.js

@@ -1,2 +1 @@
 export const foo = "foo";
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbImZpbGU6Ly8vc3ViZGlyL2Zvby5qcyJdLCJzb3VyY2VzQ29udGVudCI6WyJleHBvcnQgY29uc3QgZm9vID0gXCJmb29cIjtcbiJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSxPQUFPLE1BQU0sTUFBTSxNQUFNIn0=

tests/__snapshots__/common/jsx_import_from_ts/transpile/local/jsx_import_from_ts.ts

@@ -1,3 +1,2 @@
 import app from "./subdir/app.jsx";
 console.log(app);
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbImZpbGU6Ly8vanN4X2ltcG9ydF9mcm9tX3RzLnRzIl0sInNvdXJjZXNDb250ZW50IjpbImltcG9ydCBhcHAgZnJvbSBcIi4vc3ViZGlyL2FwcC5qc3hcIjtcblxuY29uc29sZS5sb2coYXBwKTtcbiJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSxPQUFPLFNBQVMsbUJBQW1CO0FBRW5DLFFBQVEsR0FBRyxDQUFDIn0=

tests/__snapshots__/common/jsx_import_from_ts/transpile/local/subdir/app.jsx

@@ -4,4 +4,3 @@ const React = {
 export default function app() {
     return /*#__PURE__*/ React.createElement("div", null, /*#__PURE__*/ React.createElement("h2", null, "asdf"));
 }
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbImZpbGU6Ly8vc3ViZGlyL2FwcC5qc3giXSwic291cmNlc0NvbnRlbnQiOlsiY29uc3QgUmVhY3QgPSB7XG4gIGNyZWF0ZUVsZW1lbnQoKSB7fSxcbn07XG5cbmV4cG9ydCBkZWZhdWx0IGZ1bmN0aW9uIGFwcCgpIHtcbiAgcmV0dXJuIChcbiAgICA8ZGl2PlxuICAgICAgPGgyPmFzZGY8L2gyPlxuICAgIDwvZGl2PlxuICApO1xufVxuIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUFBLE1BQU0sUUFBUTtJQUNaLGlCQUFnQixDQUFDO0FBQ25CO0FBRUEsZUFBZSxTQUFTLE1BQU07SUFDNUIscUJBQ0Usb0JBQUMsMkJBQ0Msb0JBQUMsWUFBRztBQUdWLENBQUMifQ==

tests/__snapshots__/common/load_override/transpile/local/src.ts

@@ -1,2 +1 @@
 console.log("Hello world!");
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbImZpbGU6Ly8vc3JjLnRzIl0sInNvdXJjZXNDb250ZW50IjpbImNvbnNvbGUubG9nKFwiSGVsbG8gd29ybGQhXCIpO1xuIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUFBLFFBQVEsR0FBRyxDQUFDIn0=

tests/__snapshots__/common/remote_url_as_object/transpile/remote/NNRNTa3nQ9cRguYpg8Fa19sQDzU/std@0.140.0/_util/assert.ts

@@ -11,4 +11,3 @@ export class DenoStdInternalError extends Error {
         throw new DenoStdInternalError(msg);
     }
 }
-//# sourceMappingURL=data:application/json;base64,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

tests/__snapshots__/common/remote_url_as_object/transpile/remote/NNRNTa3nQ9cRguYpg8Fa19sQDzU/std@0.140.0/_util/os.ts

@@ -15,4 +15,3 @@ export const osType = (()=>{
 })();
 export const isWindows = osType === "windows";
 export const isLinux = osType === "linux";
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