This upgrades to ncc@0.25.0 and fixes the previous bugs including:
* ncc not referenced correctly in build
* Babel type errors
* node-fetch, etag, chalk and raw-body dependencies not building with ncc - these have been "un-ncc'd" for now. As they are relatively small dependencies, this doesn't seem too much of an issue and we can follow up in the tracking ncc issue at https://github.com/vercel/ncc/issues/612.
* `yarn dev` issues
Took a lot of bisecting, but the overall diff isn't too bad here in the end.
This adds inlining for Babel and the Babel plugins used in next.
This is based to the PR at https://github.com/vercel/next.js/pull/18823.
The approach is to make one large bundle and then separate out the individual packages from that in order to avoid duplications.
In the first attempt the Babel bundle size was 10MB... using "resolutions" in the Yarn workspace to reduce the duplicated packages this was brought down to a 2.8MB bundle for Babel and all the used plugins which is exactly the expected file size here.
This will thus add a 2.8MB download size to the next package, but save downloading any babel dependencies separately, removing a large number of package dependencies from the overall install.
Babel-preset-env includes includes optional chaining and
nullish-coalescing since [7.8.0](https://github.com/babel/babel/releases/tag/v7.8.0).
In this diff I removed these plugins from next preset to prevent
dependency duplication when their newer versions are out.
These changes aim to resolve most of the concerns raised in #15756. It adds missing polyfills for legacy browsers up until ES2019:
- Number.{parseFloat,parseInt}
- ~Math.{acosh,asinh,atanh,cbrt,clz32,cosh,expm1,fround,hypot,imul,log10p,log1p,log2,sign,sinh,tanh,trunc}~ _[Removed as these are [not widely used](https://github.com/vercel/next.js/pull/15772#discussion_r463957931)]_
- While these may seem to weigh a lot, they barely add 1 kB to the resulting bundle:
<img width="492" alt="gzip: 32 kB vs. 30.9 kB, Brotli: 28.8 kB vs. 27.8 kB" src="https://user-images.githubusercontent.com/14854048/89100961-1376e600-d3fc-11ea-90fd-3e6632b70220.png">
- ~Object.fromEntries~ _[Removed as [it's rarely used in user code](https://github.com/vercel/next.js/pull/15772#discussion_r463984612)]_
Also, the following features are now supported with build-time transforms:
- ~`globalThis` (gets transformed into `window` in browser environments)~ _[Removed as it [could break existing applications](https://github.com/vercel/next.js/pull/15772#discussion_r463956269)]_
- `export * as ns from 'module'`
The suggested TypeScript library version has been set to ES2018, so the features below become unavailable in type-checked files (they're not evenly supported by module-compatible browsers, either):
- Object.fromEntries
- String.prototype.matchAll
- String.prototype.replaceAll
- Promise.any + AggregateError
- WeakRef
As for the `import.meta` support, [webpack v5 seems to fix that](https://github.com/webpack/webpack/pull/11075), so it should eventually become an issue of the past.
---
Fixes#15756
Was going through _document and noticed some variable shadowing going on. Added a rule for it to our eslint configuration and went through all warnings with @Timer.
* Allow `@babel/preset-typescript` to be configured
Some usages, e.g. [getting parameter decorators to work properly](https://github.com/WarnerHooh/babel-plugin-parameter-decorator/pull/19), require configuring `@babel/preset-typescript`.
This commit adds that functionality to `next/babel`.
* Add unit test for babel/preset allowing to pass options to @babel/preset-typescript
* Add integration test for onlyRemoveTypeImports
* Update babel dependencies
* Update to compatible typescript version and fix types
* Fix linting and run pre-nccing
* Update size-limit test
* Add additional tests
* Re-Apply delta to be calculated using -262
Co-authored-by: JJ Kasper <jj@jjsweb.site>
* Add transparent JSX optimization.
* fix duplicate React import
* fix React not being imported when only a single Fragment node is present in a source module
* remove babel-plugin-react-require
* Fix JSX optimization for CommonJS source files.
* Remove accidental support for invalid JavaScript
Next.js inadvertently supported users mixing ES Modules and CommonJS due to a Babel bug that was fixed in v7.
This removes the hack in favor of the new Babel `sourceType` feature.
**This will result in broken code for users who relied on this non-standard conforming behavior.**
* Fix comment
* Toggle feature behind modern flag
* Compile for the current version of Node.js by default when producing server builds.
* Update packages/next/build/babel/preset.ts
Co-Authored-By: Joe Haddad <timer150@gmail.com>
* Include server variation in Babel cacheKey
* Run prettier over packages/**/*.js
* Run prettier over packages/**/*.ts
* Run prettier over examples
* Remove tslint
* Run prettier over examples
* Run prettier over all markdown files
* Run prettier over json files
* Make async-to-promises babel plugin experimental
* Move excludes for asyncToPromises behind flag too
* Move other configs behind flag
* Re-add original exclude item
After discussion it was decided instead of rewriting `next/config` and `next/head` imports to `next-server/config` and `next-server/head` we should just allow importing them as `next/config` and `next/head`
Fixes: #6187
