24 lines
620 B
JavaScript
24 lines
620 B
JavaScript
|
// When a conditional dependency `props.a` is a subpath of an unconditional
|
||
|
|
// dependency `props.a.b`, we can access `props.a` while preserving program
|
||
|
|
// semantics (with respect to nullthrows).
|
||
|
|
// deps: {`props.a`, `props.a.b`} can further reduce to just `props.a`
|
||
|
|
|
||
|
|
import { identity } from "shared-runtime";
|
||
|
|
|
||
|
|
// ordering of accesses should not matter
|
||
|
|
function useConditionalSubpath1(props, cond) {
|
||
|
|
const x = {};
|
||
|
|
x.b = props.a.b;
|
||
|
|
if (cond |> identity(%)) {
|
||
|
|
x.a = props.a;
|
||
|
|
}
|
||
|
|
return x;
|
||
|
|
}
|
||
|
|
export const FIXTURE_ENTRYPOINT = {
|
||
|
|
fn: useConditionalSubpath1,
|
||
|
|
params: [{
|
||
|
|
a: {
|
||
|
|
b: 3
|
||
|
|
}
|
||
|
|
}, false]
|
||
|
|
};
|