fix(ssr): hoist export to handle cyclic import better

packages/vite/src/node/__tests__/build.spec.ts

@@ -4,8 +4,8 @@ import colors from 'picocolors'
 import { describe, expect, test, vi } from 'vitest'
 import type { OutputChunk, OutputOptions, RollupOutput } from 'rollup'
 import type { LibraryFormats, LibraryOptions } from '../build'
+import { build } from '..'
 import {
-  build,
   createBuilder,
   resolveBuildOutputs,
   resolveLibFilename,

packages/vite/src/node/__tests__/environment.spec.ts

@@ -1,7 +1,7 @@
 import path from 'node:path'
 import { describe, expect, onTestFinished, test } from 'vitest'
 import type { RollupOutput } from 'rollup'
-import { createServer } from '../server'
+import { createServer } from '..'
 import type { InlineConfig } from '../config'
 import { createBuilder } from '../build'
 import { createServerModuleRunner } from '../ssr/runtime/serverModuleRunner'

packages/vite/src/node/__tests__/plugins/assetImportMetaUrl.spec.ts

@@ -1,7 +1,7 @@
 import { describe, expect, test } from 'vitest'
 import { parseAst } from 'rollup/parseAst'
+import { resolveConfig } from '../..'
 import { assetImportMetaUrlPlugin } from '../../plugins/assetImportMetaUrl'
-import { resolveConfig } from '../../config'
 import { PartialEnvironment } from '../../baseEnvironment'
 
 async function createAssetImportMetaurlPluginTransform() {

packages/vite/src/node/__tests__/plugins/define.spec.ts

@@ -1,6 +1,6 @@
 import { describe, expect, test } from 'vitest'
+import { resolveConfig } from '../..'
 import { definePlugin } from '../../plugins/define'
-import { resolveConfig } from '../../config'
 import { PartialEnvironment } from '../../baseEnvironment'
 
 async function createDefinePluginTransform(

packages/vite/src/node/__tests__/plugins/dynamicImportVar/parse.spec.ts

@@ -1,8 +1,8 @@
 import { resolve } from 'node:path'
 import { fileURLToPath } from 'node:url'
 import { describe, expect, it } from 'vitest'
+import { normalizePath } from '../../..'
 import { transformDynamicImport } from '../../../plugins/dynamicImportVars'
-import { normalizePath } from '../../../utils'
 import { isWindows } from '../../../../shared/utils'
 
 const __dirname = resolve(fileURLToPath(import.meta.url), '..')

packages/vite/src/node/__tests__/plugins/import.spec.ts

@@ -1,4 +1,5 @@
 import { beforeEach, describe, expect, test, vi } from 'vitest'
+import '../..'
 import { transformCjsImport } from '../../plugins/importAnalysis'
 
 describe('transformCjsImport', () => {

packages/vite/src/node/__tests__/plugins/modulePreloadPolyfill/modulePreloadPolyfill.spec.ts

@@ -1,6 +1,6 @@
 import { describe, it } from 'vitest'
 import type { ModuleFormat, RollupOutput } from 'rollup'
-import { build } from '../../../build'
+import { build } from '../../..'
 import { modulePreloadPolyfillId } from '../../../plugins/modulePreloadPolyfill'
 
 const buildProject = ({ format = 'es' as ModuleFormat } = {}) =>

packages/vite/src/node/__tests__/resolve.spec.ts

@@ -1,6 +1,6 @@
 import { join } from 'node:path'
 import { describe, expect, onTestFinished, test } from 'vitest'
-import { createServer } from '../server'
+import { createServer } from '..'
 import { createServerModuleRunner } from '../ssr/runtime/serverModuleRunner'
 import type { InlineConfig } from '../config'
 import { build } from '../build'

packages/vite/src/node/__tests__/scan.spec.ts

@@ -1,4 +1,5 @@
 import { describe, expect, test } from 'vitest'
+import '..'
 import { commentRE, importsRE, scriptRE } from '../optimizer/scan'
 import { multilineCommentsRE, singlelineCommentsRE } from '../utils'
 

packages/vite/src/node/server/__tests__/moduleGraph.spec.ts

@@ -1,4 +1,5 @@
 import { describe, expect, it } from 'vitest'
+import '../..'
 import { EnvironmentModuleGraph } from '../moduleGraph'
 import type { ModuleNode } from '../mixedModuleGraph'
 import { ModuleGraph } from '../mixedModuleGraph'

packages/vite/src/node/server/__tests__/watcher.spec.ts

@@ -1,7 +1,7 @@
 import { resolve } from 'node:path'
 import { fileURLToPath } from 'node:url'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import { type ViteDevServer, createServer } from '../index'
+import { type ViteDevServer, createServer } from '../..'
 
 const stubGetWatchedCode = /\(\)\s*\{\s*return this;\s*\}/
 

packages/vite/src/node/ssr/__tests__/ssrLoadModule.spec.ts

@@ -3,7 +3,7 @@ import path from 'node:path'
 import fs from 'node:fs'
 import { stripVTControlCharacters } from 'node:util'
 import { expect, test } from 'vitest'
-import { createServer } from '../../server'
+import { createServer } from '../..'
 import { normalizePath } from '../../utils'
 
 const root = fileURLToPath(new URL('./', import.meta.url))

packages/vite/src/node/ssr/__tests__/ssrStacktrace.spec.ts

@@ -1,6 +1,6 @@
 import { fileURLToPath } from 'node:url'
 import { test } from 'vitest'
-import { createServer } from '../../server'
+import { createServer } from '../..'
 
 const root = fileURLToPath(new URL('./', import.meta.url))
 

packages/vite/src/node/ssr/__tests__/ssrTransform.spec.ts

@@ -56,46 +56,46 @@ test('namespace import', async () => {
 test('export function declaration', async () => {
   expect(await ssrTransformSimpleCode(`export function foo() {}`))
     .toMatchInlineSnapshot(`
-      "function foo() {}
-      Object.defineProperty(__vite_ssr_exports__, "foo", { enumerable: true, configurable: true, get(){ return foo }});"
+      "Object.defineProperty(__vite_ssr_exports__, "foo", { enumerable: true, configurable: true, get(){ return foo }});
+      function foo() {}"
     `)
 })
 
 test('export class declaration', async () => {
   expect(await ssrTransformSimpleCode(`export class foo {}`))
     .toMatchInlineSnapshot(`
-      "class foo {}
-      Object.defineProperty(__vite_ssr_exports__, "foo", { enumerable: true, configurable: true, get(){ return foo }});"
+      "Object.defineProperty(__vite_ssr_exports__, "foo", { enumerable: true, configurable: true, get(){ return foo }});
+      class foo {}"
     `)
 })
 
 test('export var declaration', async () => {
   expect(await ssrTransformSimpleCode(`export const a = 1, b = 2`))
     .toMatchInlineSnapshot(`
-      "const a = 1, b = 2
-      Object.defineProperty(__vite_ssr_exports__, "a", { enumerable: true, configurable: true, get(){ return a }});
-      Object.defineProperty(__vite_ssr_exports__, "b", { enumerable: true, configurable: true, get(){ return b }});"
+      "Object.defineProperty(__vite_ssr_exports__, "a", { enumerable: true, configurable: true, get(){ return a }});
+      Object.defineProperty(__vite_ssr_exports__, "b", { enumerable: true, configurable: true, get(){ return b }});
+      const a = 1, b = 2"
     `)
 })
 
 test('export named', async () => {
   expect(
     await ssrTransformSimpleCode(`const a = 1, b = 2; export { a, b as c }`),
   ).toMatchInlineSnapshot(`
-    "const a = 1, b = 2; 
-    Object.defineProperty(__vite_ssr_exports__, "a", { enumerable: true, configurable: true, get(){ return a }});
-    Object.defineProperty(__vite_ssr_exports__, "c", { enumerable: true, configurable: true, get(){ return b }});"
+    "Object.defineProperty(__vite_ssr_exports__, "a", { enumerable: true, configurable: true, get(){ return a }});
+    Object.defineProperty(__vite_ssr_exports__, "c", { enumerable: true, configurable: true, get(){ return b }});
+    const a = 1, b = 2; "
   `)
 })
 
 test('export named from', async () => {
   expect(
     await ssrTransformSimpleCode(`export { ref, computed as c } from 'vue'`),
   ).toMatchInlineSnapshot(`
-    "const __vite_ssr_import_0__ = await __vite_ssr_import__("vue", {"importedNames":["ref","computed"]});
-
-    Object.defineProperty(__vite_ssr_exports__, "ref", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_0__.ref }});
-    Object.defineProperty(__vite_ssr_exports__, "c", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_0__.computed }});"
+    "Object.defineProperty(__vite_ssr_exports__, "ref", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_0__.ref }});
+    Object.defineProperty(__vite_ssr_exports__, "c", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_0__.computed }});
+    const __vite_ssr_import_0__ = await __vite_ssr_import__("vue", {"importedNames":["ref","computed"]});
+    "
   `)
 })
 
@@ -105,9 +105,9 @@ test('named exports of imported binding', async () => {
       `import {createApp} from 'vue';export {createApp}`,
     ),
   ).toMatchInlineSnapshot(`
-    "const __vite_ssr_import_0__ = await __vite_ssr_import__("vue", {"importedNames":["createApp"]});
-
-    Object.defineProperty(__vite_ssr_exports__, "createApp", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_0__.createApp }});"
+    "Object.defineProperty(__vite_ssr_exports__, "createApp", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_0__.createApp }});
+    const __vite_ssr_import_0__ = await __vite_ssr_import__("vue", {"importedNames":["createApp"]});
+    "
   `)
 })
 
@@ -129,19 +129,19 @@ test('export * from', async () => {
 test('export * as from', async () => {
   expect(await ssrTransformSimpleCode(`export * as foo from 'vue'`))
     .toMatchInlineSnapshot(`
-      "const __vite_ssr_import_0__ = await __vite_ssr_import__("vue");
-
-      Object.defineProperty(__vite_ssr_exports__, "foo", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_0__ }});"
+      "Object.defineProperty(__vite_ssr_exports__, "foo", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_0__ }});
+      const __vite_ssr_import_0__ = await __vite_ssr_import__("vue");
+      "
     `)
 })
 
 test('export * as from arbitrary module namespace identifier', async () => {
   expect(
     await ssrTransformSimpleCode(`export * as "arbitrary string" from 'vue'`),
   ).toMatchInlineSnapshot(`
-    "const __vite_ssr_import_0__ = await __vite_ssr_import__("vue");
-
-    Object.defineProperty(__vite_ssr_exports__, "arbitrary string", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_0__ }});"
+    "Object.defineProperty(__vite_ssr_exports__, "arbitrary string", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_0__ }});
+    const __vite_ssr_import_0__ = await __vite_ssr_import__("vue");
+    "
   `)
 })
 
@@ -151,8 +151,8 @@ test('export as arbitrary module namespace identifier', async () => {
       `const something = "Something";export { something as "arbitrary string" };`,
     ),
   ).toMatchInlineSnapshot(`
-    "const something = "Something";
-    Object.defineProperty(__vite_ssr_exports__, "arbitrary string", { enumerable: true, configurable: true, get(){ return something }});"
+    "Object.defineProperty(__vite_ssr_exports__, "arbitrary string", { enumerable: true, configurable: true, get(){ return something }});
+    const something = "Something";"
   `)
 })
 
@@ -162,9 +162,9 @@ test('export as from arbitrary module namespace identifier', async () => {
       `export { "arbitrary string2" as "arbitrary string" } from 'vue';`,
     ),
   ).toMatchInlineSnapshot(`
-    "const __vite_ssr_import_0__ = await __vite_ssr_import__("vue", {"importedNames":["arbitrary string2"]});
-
-    Object.defineProperty(__vite_ssr_exports__, "arbitrary string", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_0__["arbitrary string2"] }});"
+    "Object.defineProperty(__vite_ssr_exports__, "arbitrary string", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_0__["arbitrary string2"] }});
+    const __vite_ssr_import_0__ = await __vite_ssr_import__("vue", {"importedNames":["arbitrary string2"]});
+    "
   `)
 })
 
@@ -209,8 +209,8 @@ test('dynamic import', async () => {
     `export const i = () => import('./foo')`,
   )
   expect(result?.code).toMatchInlineSnapshot(`
-    "const i = () => __vite_ssr_dynamic_import__('./foo')
-    Object.defineProperty(__vite_ssr_exports__, "i", { enumerable: true, configurable: true, get(){ return i }});"
+    "Object.defineProperty(__vite_ssr_exports__, "i", { enumerable: true, configurable: true, get(){ return i }});
+    const i = () => __vite_ssr_dynamic_import__('./foo')"
   `)
   expect(result?.deps).toEqual([])
   expect(result?.dynamicDeps).toEqual(['./foo'])
@@ -382,11 +382,11 @@ test('should declare variable for imported super class', async () => {
         `export class B extends Foo {}`,
     ),
   ).toMatchInlineSnapshot(`
-    "const __vite_ssr_import_0__ = await __vite_ssr_import__("./dependency", {"importedNames":["Foo"]});
+    "Object.defineProperty(__vite_ssr_exports__, "B", { enumerable: true, configurable: true, get(){ return B }});
+    const __vite_ssr_import_0__ = await __vite_ssr_import__("./dependency", {"importedNames":["Foo"]});
     const Foo = __vite_ssr_import_0__.Foo;
     class A extends Foo {};
     class B extends Foo {}
-    Object.defineProperty(__vite_ssr_exports__, "B", { enumerable: true, configurable: true, get(){ return B }});
     Object.defineProperty(__vite_ssr_exports__, "default", { enumerable: true, configurable: true, value: A });"
   `)
 })
@@ -422,9 +422,9 @@ test('should handle default export variants', async () => {
       `export default class A {}\n` + `export class B extends A {}`,
     ),
   ).toMatchInlineSnapshot(`
-    "class A {};
+    "Object.defineProperty(__vite_ssr_exports__, "B", { enumerable: true, configurable: true, get(){ return B }});
+    class A {};
     class B extends A {}
-    Object.defineProperty(__vite_ssr_exports__, "B", { enumerable: true, configurable: true, get(){ return B }});
     Object.defineProperty(__vite_ssr_exports__, "default", { enumerable: true, configurable: true, value: A });"
   `)
 })
@@ -875,12 +875,12 @@ export function fn1() {
         `,
     ),
   ).toMatchInlineSnapshot(`
-    "
+    "Object.defineProperty(__vite_ssr_exports__, "fn1", { enumerable: true, configurable: true, get(){ return fn1 }});
+    Object.defineProperty(__vite_ssr_exports__, "fn2", { enumerable: true, configurable: true, get(){ return fn2 }});
+
     function fn1() {
+    };function fn2() {
     }
-    Object.defineProperty(__vite_ssr_exports__, "fn1", { enumerable: true, configurable: true, get(){ return fn1 }});;function fn2() {
-    }
-    Object.defineProperty(__vite_ssr_exports__, "fn2", { enumerable: true, configurable: true, get(){ return fn2 }});
             "
   `)
 })
@@ -981,7 +981,8 @@ export class Test {
 };`.trim()
 
   expect(await ssrTransformSimpleCode(code)).toMatchInlineSnapshot(`
-    "const __vite_ssr_import_0__ = await __vite_ssr_import__("foobar", {"importedNames":["foo","bar"]});
+    "Object.defineProperty(__vite_ssr_exports__, "Test", { enumerable: true, configurable: true, get(){ return Test }});
+    const __vite_ssr_import_0__ = await __vite_ssr_import__("foobar", {"importedNames":["foo","bar"]});
 
     if (false) {
       const foo = 'foo';
@@ -1006,8 +1007,7 @@ export class Test {
           console.log((0,__vite_ssr_import_0__.bar))
         }
       }
-    }
-    Object.defineProperty(__vite_ssr_exports__, "Test", { enumerable: true, configurable: true, get(){ return Test }});;;"
+    };;"
   `)
 })
 
@@ -1180,13 +1180,13 @@ export * as bar from './bar'
 console.log(bar)
   `),
   ).toMatchInlineSnapshot(`
-    "const __vite_ssr_import_0__ = await __vite_ssr_import__("./foo", {"importedNames":["foo"]});
+    "Object.defineProperty(__vite_ssr_exports__, "bar", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_1__ }});
+    const __vite_ssr_import_0__ = await __vite_ssr_import__("./foo", {"importedNames":["foo"]});
 
 
     __vite_ssr_exports__.default = (0,__vite_ssr_import_0__.foo)();
     const __vite_ssr_import_1__ = await __vite_ssr_import__("./bar");
-
-    Object.defineProperty(__vite_ssr_exports__, "bar", { enumerable: true, configurable: true, get(){ return __vite_ssr_import_1__ }});;
+    ;
     console.log(bar)
       "
   `)

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/README.md

@@ -0,0 +1,9 @@
+Cyclic import example based on https://github.com/vitejs/vite/issues/14048#issuecomment-2354774156
+
+```mermaid
+flowchart TD
+    B(dep1.js) -->|dep1| A(index.js)
+    A -->|dep1| C(dep2.js)
+    C -->|dep2| A
+    A -->|dep1, dep2| entry.js
+```

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test1/dep1.js

@@ -0,0 +1 @@
+export const dep1 = { ok: true };

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test1/dep2.js

@@ -0,0 +1,2 @@
+import { dep1 } from "./index.js"
+export const dep2 = { ok: dep1.ok }

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test1/index.js

@@ -0,0 +1,5 @@
+import { dep1 } from './dep1.js'
+export { dep1 }
+
+import { dep2 } from './dep2.js'
+export { dep2 }

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test2/dep1.js

@@ -0,0 +1 @@
+export const dep1 = { ok: true };

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test2/dep2.js

@@ -0,0 +1,2 @@
+import { dep1 } from "./index.js"
+export const dep2 = { ok: dep1.ok }

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test2/index.js

@@ -0,0 +1,2 @@
+export { dep1 } from './dep1.js'
+export { dep2 } from "./dep2.js"

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test3/dep1.js

@@ -0,0 +1 @@
+export const dep1 = { ok: true };

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test3/dep2.js

@@ -0,0 +1,2 @@
+import { dep1 } from "./index.js"
+export const dep2 = { ok: dep1.ok }

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test3/index.js

@@ -0,0 +1,4 @@
+import { dep1 } from './dep1.js'
+import { dep2 } from './dep2.js'
+export { dep1 }
+export { dep2 }

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test4/dep1.js

@@ -0,0 +1 @@
+export const dep1 = { ok: true };

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test4/dep2.js

@@ -0,0 +1,2 @@
+import { dep1 } from "./index.js"
+export const dep2 = { ok: dep1.ok }

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test4/index.js

@@ -0,0 +1,2 @@
+export * from './dep1.js'
+export * from './dep2.js'

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test5/dep1.js

@@ -0,0 +1 @@
+export const dep1 = { ok: true };

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test5/dep2.js

@@ -0,0 +1,2 @@
+import { dep1 } from "./index.js"
+export const dep2 = { ok: dep1.ok }

packages/vite/src/node/ssr/runtime/__tests__/fixtures/cyclic2/test5/index.js

@@ -0,0 +1,5 @@
+import { dep2 } from './dep2.js'
+export { dep2 }
+
+import { dep1 } from './dep1.js'
+export { dep1 }