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feat: enable generatedCode: 'es2015' for rollup build #5018

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merged 7 commits into from
May 13, 2022
Merged

feat: enable generatedCode: 'es2015' for rollup build #5018

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1f3b5b6
feat: enable `generatedCode: 'es2015'` for rollup build
antfu Sep 22, 2021
fe627f6
Merge branch 'main' into feat/rollup-build
antfu Sep 23, 2021
94c5c82
Merge branch 'main' into feat/rollup-build
Shinigami92 Nov 25, 2021
67ffabf
Merge branch 'main' into feat/rollup-build
antfu May 9, 2022
ced2ac3
Merge branch 'main' into pr/5018
sapphi-red May 13, 2022
ad97361
fix(lib): update esbuild inject helper regex for `generatedCode: es2015`
sapphi-red May 13, 2022
2cd083f
fix(lib): update esbuild inject helper regex to allow var
sapphi-red May 13, 2022
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1 change: 1 addition & 0 deletions packages/vite/src/node/build.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -426,6 +426,7 @@ async function doBuild(
exports: ssr ? 'named' : 'auto',
sourcemap: options.sourcemap,
name: libOptions ? libOptions.name : undefined,
generatedCode: 'es2015',
entryFileNames: ssr
? `[name].js`
: libOptions
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2 changes: 1 addition & 1 deletion packages/vite/src/node/plugins/esbuild.ts
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Expand Up @@ -27,7 +27,7 @@ import { searchForWorkspaceRoot } from '..'
const debug = createDebugger('vite:esbuild')

const INJECT_HELPERS_IIFE_RE =
/(.*)(var [^\s]+=function\([^)]*?\){"use strict";)(.*)/
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/(.*)(const [^\s]+=function\([^)]*?\){"use strict";)(.*)/
const INJECT_HELPERS_UMD_RE =
/(.*)(\(function\([^)]*?\){.+amd.+function\([^)]*?\){"use strict";)(.*)/

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2 changes: 1 addition & 1 deletion playground/lib/__tests__/lib.spec.ts
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Expand Up @@ -31,7 +31,7 @@ describe.runIf(isBuild)('build', () => {
'utf-8'
)
// esbuild helpers are injected inside of the IIFE wrapper
expect(code).toMatch(/^var MyLib=function\(\){"use strict";/)
expect(code).toMatch(/^const MyLib=function\(\){"use strict";/)
})

test('Library mode does not include `preload`', async () => {
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