feat: supporting exports syntax #9 (#10)

* feat: supporting exports syntax * fix: pr build sript * fix: trying out some things * fix: adding some more examples * fix: finally fixing the problem * fix: adding comments
MadaraUchiha-314 · Oct 21, 2023 · 96a8e31 · 96a8e31
1 parent d551397
commit 96a8e31
Show file tree

Hide file tree

Showing 6 changed files with 65 additions and 4 deletions.
diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
@@ -14,4 +14,4 @@ jobs:
           node-version: 18.x
           registry-url: 'https://registry.npmjs.org'
       - run: npm install --frozen-lockfile
-      - run: npm build --workspaces --if-present
+      - run: npm run build --workspaces --if-present
diff --git a/package-lock.json b/package-lock.json
diff --git a/packages/examples/project-a/package.json b/packages/examples/project-a/package.json
@@ -14,6 +14,7 @@
   "dependencies": {
     "react": "^18.0.0",
     "react-dom": "^18.0.0",
+    "redux": "^4.2.1",
     "uuid": "9.0.0"
   },
   "devDependencies": {

diff --git a/packages/examples/project-a/rollup.config.mjs b/packages/examples/project-a/rollup.config.mjs
@@ -27,6 +27,7 @@ export default {
         react: {},
         'react-dom': {},
         uuid: {},
+        redux: {},
       },
     }),
     nodeResolve(),

diff --git a/packages/examples/project-a/src/index.js b/packages/examples/project-a/src/index.js
@@ -1,13 +1,17 @@
-import React, { Component } from 'react';
+import React, { Component, useMemo } from 'react';
 import { v4 as uuidv4 } from 'uuid';
 import { ABC } from './abc';
 
+export { createStore, compose } from 'redux';
+export { applyMiddleware as kindlyApplyMiddleware } from 'redux';
+
 /* eslint-disable no-console */
 
 export async function doSomething() {
   console.log('Inside doSomething()');
   console.log('React version is: ', React.version);
   console.log('typeof React.Component is: ', typeof Component);
+  console.log(useMemo);
   const ReactDOM = await import('react-dom');
 
   console.log('ReactDOM version is: ', ReactDOM.version);

diff --git a/packages/rollup-plugin-module-federation/src/index.js b/packages/rollup-plugin-module-federation/src/index.js
@@ -18,6 +18,8 @@ import { PACKAGE_JSON } from './constants.js';
 const IMPORTS_TO_FEDERATED_IMPORTS_NODES = {
   ImportDeclaration: 'ImportDeclaration',
   ImportExpression: 'ImportExpression',
+  ExportNamedDeclaration: 'ExportNamedDeclaration',
+  // ExportAllDeclaration: 'ExportAllDeclaration',
 };
 
 const REMOTE_ENTRY_MODULE_ID = '__remoteEntry__';
@@ -101,6 +103,34 @@ export function getFederatedImportStatementForNode(node, moduleSpecifier) {
       federatedImportStms.push(moduleSpecifier);
       break;
     }
+    case IMPORTS_TO_FEDERATED_IMPORTS_NODES.ExportNamedDeclaration: {
+      node.specifiers.forEach((specifier) => {
+        switch(specifier.type) {
+          case 'ExportSpecifier': {
+            if (specifier.exported.name !== specifier.local.name) {
+              /**
+               * export { ABC as XYZ } from 'pqr';
+               */
+              federatedImportStms.push(
+                `const { ${specifier.local.name} } = await ${moduleSpecifier}; export { ${specifier.local.name} as ${specifier.exported.name} }`,
+              );
+            } else {
+              /**
+               * export { ABC } from 'pqr';
+               */
+              federatedImportStms.push(
+                `const { ${specifier.local.name} } = await ${moduleSpecifier}; export { ${specifier.local.name} }`,
+              );
+            }
+            break;
+          }
+          default: {
+            throw Error(`Unsupported specifier.type: ${specifier.type}`);
+          }
+        }
+      });
+      break;
+    }
     default: {
       break;
     }
@@ -415,7 +445,7 @@ export default function federation(federationConfig) {
             if (
               Object.keys(IMPORTS_TO_FEDERATED_IMPORTS_NODES).includes(
                 node.type,
-              )
+              ) && node?.source?.value
             ) {
               /**
                * At this point rollup hasn't completed resolution of the import statements in this file.