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__esModule in ts cause breaking change #51473

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Jack-Works opened this issue Nov 10, 2022 · 2 comments · Fixed by #51474
Closed

__esModule in ts cause breaking change #51473

Jack-Works opened this issue Nov 10, 2022 · 2 comments · Fixed by #51474

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@Jack-Works
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In #51387 the codebase changed to use ESBuild. And now require('typescript') will include __esModule: true and that is a breaking change.

> require("typescript").version
'4.9.2-rc'
> require("typescript").__esModule
undefined
>
> require('typescript').version
'5.0.0-dev.20221109'
> require('typescript').__esModule
true
>

This crashes https://github.com/hipstersmoothie/react-docgen-typescript-plugin

TypeError: Cannot read properties of undefined (reading 'JsxEmit')
    at DocgenPlugin.getOptions (node_modules/@storybook/react-docgen-typescript-plugin/dist/plugin.js:246:39)

It's output code uses tslib.importDefault to import typescript.

const typescript_1 = tslib_1.__importDefault(require("typescript"));
let compilerOptions = {
    jsx: typescript_1.default.JsxEmit.React,
    //   ~~~~~~~~~~~~~~~~~~~~ ts namespace before, undefined after
    module: typescript_1.default.ModuleKind.CommonJS,
    target: typescript_1.default.ScriptTarget.Latest,
};
@jakebailey
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Thanks for testing this so early. This is unfortunate.

Can you try with "typescript": "npm:@typescript-deploys/[email protected]" and see if the issue goes away? (from #51474)

@Jack-Works
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yes, this fixes the problem

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2 participants