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react/compiler/packages/babel-plugin-react-compiler
Niklas Mollenhauer c2b45ef0dd feat(compiler): Implement constant folding for more binary expressions (#29650)
## Summary

There are already most arithmetic operators in constant propagation:
`+`, `-`, `*`, `/`.
We could add more, namely: `|`, `&`, `^`, `<<`, `>>`, `>>>` and `%`:

Input:
```js
function f() {
  return [
    123.45 | 0,
    123.45 & 0,
    123.45 ^ 0,
    123 << 0,
    123 >> 0,
    123 >>> 0,
    123.45 | 1,
    123.45 & 1,
    123.45 ^ 1,
    123 << 1,
    123 >> 1,
    123 >>> 1,
    3 ** 2,
    3 ** 2.5,
    3.5 ** 2,
    2 ** 3 ** 0.5,
    4 % 2,
    4 % 2.5,
    4 % 3,
    4.5 % 2,
  ];
}
```
Output:
```js
function f() {
  return [
    123, 0, 123, 123, 123, 123, 123, 1, 122, 246, 61, 61, 9,
    15.588457268119896, 12.25, 3.3219970854839125, 0, 1.5, 1, 0.5,
  ];
}
```

Resolves #29649

## How did you test this change?
See tests.

Note:
This PR was done without waiting for approval in #29649, so feel free to
just close it without any comment.
2024-05-29 10:35:19 -07:00
..
2024-05-29 11:46:27 +09:00
2024-05-02 14:12:33 -07:00
2024-05-02 14:12:33 -07:00

babel-plugin-react-compiler

React Compiler is a compiler that optimizes React applications, ensuring that only the minimal parts of components and hooks will re-render when state changes. The compiler also validates that components and hooks follow the Rules of React.

This package contains the React Compiler Babel plugin use in projects that make use of Babel. You can find instructions for using this plugin here: https://react.dev/learn/react-compiler