Naive Speculative Mode

[yisar]

Speculative mode implemention,

import { h, render, createContext, useContext } from 'fre'

const Context = createContext(null)

function App() {
  return <Context.Provider value={count1:1, count2:2}>
    <A/>
  </Context.Provider>
}

function A() {
  // Here accept a selector, the component only rerender when selector value changed
  const count1 = useContext(Context, v=>v.count1)
  return <div>{count1}</div>
}

render(<App />, document.body)

To learn more details, stare at this react pr

[codecov-io]

Codecov Report

Merging #140 into master will decrease coverage by 5.09%.
The diff coverage is 25.92%.

@@           Coverage Diff            @@
##           master    #140     +/-   ##
========================================
- Coverage    97.5%   92.4%   -5.1%     
========================================
  Files           7       7             
  Lines         360     382     +22     
  Branches      110     115      +5     
========================================
+ Hits          351     353      +2     
- Misses          8      24     +16     
- Partials        1       5      +4

Impacted Files	Coverage Δ
src/index.js	100% <ø> (ø)	⬆️
src/h.js	100% <100%> (ø)	⬆️
src/hooks.js	71.01% <20.83%> (-26.91%)	⬇️
src/reconciler.js	97.76% <50%> (-0.55%)	⬇️

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[yisar]

There is a user land alternative
https://github.com/yisar/fre/blob/master/demo/src/use-context.js
Context is no need implemented build-in fre core