feat: platform node support code splitting (#887)

crates/mako/src/chunk_pot/util.rs

@@ -109,6 +109,7 @@ pub(crate) fn runtime_code(context: &Arc<Context>) -> Result<String> {
         has_dynamic_chunks,
         has_hmr,
         umd,
+        is_browser: matches!(context.config.platform, crate::config::Platform::Browser),
         cjs: context.config.cjs,
         chunk_loading_global: context.config.output.chunk_loading_global.clone(),
     };

crates/mako/src/runtime.rs

@@ -9,4 +9,5 @@ pub struct AppRuntimeTemplate {
     pub umd: Option<String>,
     pub cjs: bool,
     pub chunk_loading_global: String,
+    pub is_browser: bool,
 }

crates/mako/templates/app_runtime.stpl

@@ -86,6 +86,7 @@ function createRuntime(makoModules, entryModuleId) {
     requireModule.jsonpInstalled = {};
     var installedChunks = requireModule.jsonpInstalled;
 
+    <% if is_browser { %>
     requireModule.chunkEnsures.jsonp = function (chunkId, promises) {
       var data = installedChunks[chunkId];
       if (data === 0) return;
@@ -125,6 +126,14 @@ function createRuntime(makoModules, entryModuleId) {
         return promise;
       }
     };
+    <% } else { %>
+    requireModule.chunkEnsures.require = (chunkId, promises) => {
+      if(!installedChunks[chunkId]) {
+        require("./" + chunksIdToUrlMap[chunkId]);
+        installedChunks[chunkId] = true;
+      }
+    };
+    <% } %>
   })();
   // chunk and async load
 

e2e/fixtures/config.platform.node.with-code-splitting/expect.js

@@ -0,0 +1,8 @@
+const assert = require("assert");
+const { parseBuildResult, trim, moduleReg } = require("../../../scripts/test-utils");
+const { files } = parseBuildResult(__dirname);
+
+module.exports = async () => {
+  const result = await require('./dist').bar();
+  assert(result === 'foo_bar', `should support code splitting`);
+};

e2e/fixtures/config.platform.node.with-code-splitting/mako.config.json

@@ -0,0 +1,4 @@
+{
+  "platform": "node",
+  "cjs": true
+}

e2e/fixtures/config.platform.node.with-code-splitting/src/foo.ts

@@ -0,0 +1 @@
+export const foo = 'foo';

e2e/fixtures/config.platform.node.with-code-splitting/src/index.ts

@@ -0,0 +1,5 @@
+
+export async function bar() {
+  const foo = await import('./foo');
+  return foo.foo + '_bar';
+}