useFoo() — react Function Reference

Source Code

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/ssa-renaming-ternary-destruction.js lines 2–11

function useFoo(props) {
  let x = [];
  x.push(props.bar);
  // todo: the below should memoize separately from the above
  // my guess is that the phi causes the different `x` identifiers
  // to get added to an alias group. this is where we need to track
  // the actual state of the alias groups at the time of the mutation
  props.cond ? (({x} = {x: {}}), ([x] = [[]]), x.push(props.foo)) : null;
  return x;
}