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Joe Savona
b69afe0506
These examples previously errored all the way in codegen, when we detected that a value block (eg a `while` test expression) was declaring a new variable. We now detect this in LeaveSSA and error. The actual fix is a bit tricky, we'd need to add a new declaration in the nearest block scope (or selectively not DCE the declaration if its reassigned in just this way).
test262
@ 83a46bfe0e
React Forget
React Forget is an experimental Babel plugin to automatically memoize React Hooks and Components.
Development
# tsc --watch
$ yarn dev
# in another terminal window
$ yarn test --watch
Notes
An overview of the implementation can be found in the Architecture Overview.
This transform
- needs plugin-syntax-jsx as a dependency to inherit the syntax from.
- should be run before plugin-transform-react-jsx
- assume the enforcement of rules of hooks, i.e.
- only call hooks from React functions
- only call hooks at the top level
- https://www.npmjs.com/package/eslint-plugin-react-hooks
Scaffolding
- https://github.com/facebook/flow/tree/master/packages/babel-plugin-transform-flow-enums
- https://github.com/babel/babel/blob/main/packages/babel-plugin-transform-react-jsx/src/create-plugin.ts
Reference