Add support for parsing import assertions & attributes

.changeset/swift-eyes-do.md

@@ -0,0 +1,5 @@
+---
+'@mfng/webpack-rsc': minor
+---
+
+Add support for parsing import assertions & attributes

.eslintignore

@@ -3,3 +3,5 @@ dist
 lib
 manifests.js
 cdk.out
+packages/webpack-rsc/src/__fixtures__/import-attributes.js
+packages/webpack-rsc/src/__fixtures__/import-assertions.js

packages/webpack-rsc/src/__fixtures__/foo.json

@@ -0,0 +1 @@
+{}

packages/webpack-rsc/src/__fixtures__/import-assertions.js

@@ -0,0 +1 @@
+await import('./foo.json', {assert: {type: 'json'}});

packages/webpack-rsc/src/__fixtures__/import-attributes.js

@@ -0,0 +1 @@
+await import('./foo.json', {with: {type: 'json'}});

packages/webpack-rsc/src/webpack-rsc-ssr-loader.cts

@@ -22,6 +22,7 @@ const webpackRscSsrLoader: webpack.LoaderDefinitionFunction<webpackRscSsrLoader.
     const ast = parser.parse(source, {
       sourceType: `module`,
       sourceFilename: resourcePath,
+      plugins: [`importAssertions`],
     });
 
     let hasUseServerDirective = false;

packages/webpack-rsc/src/webpack-rsc-ssr-loader.test.ts

@@ -108,4 +108,30 @@ export function ClientComponent({action}) {
 }`.trim(),
     );
   });
+
+  test(`can parse import assertions`, async () => {
+    const resourcePath = path.resolve(
+      currentDirname,
+      `__fixtures__/import-assertions.js`,
+    );
+
+    const output = await callLoader(resourcePath, new Map());
+
+    expect(output.toString().trim()).toEqual(
+      `await import('./foo.json', {assert: {type: 'json'}});`,
+    );
+  });
+
+  test(`can parse import attributes`, async () => {
+    const resourcePath = path.resolve(
+      currentDirname,
+      `__fixtures__/import-attributes.js`,
+    );
+
+    const output = await callLoader(resourcePath, new Map());
+
+    expect(output.toString().trim()).toEqual(
+      `await import('./foo.json', {with: {type: 'json'}});`,
+    );
+  });
 });