47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
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import { makeArray } from "shared-runtime";
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/**
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* This fixture tests what happens when a reactive has no declarations (other than an early return),
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* no reassignments, and no dependencies. In this case the only thing we can use to decide if we
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* should take the if or else branch is the early return declaration. But if that uses the same
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* sentinel as the memo cache sentinel, then if the previous execution did not early return it will
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* look like we didn't execute the memo block yet, and we'll needlessly re-execute instead of skipping
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* to the else branch.
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*
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* We have to use a distinct sentinel for the early return value.
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*
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* Here the fixture will always take the "else" branch and never early return. Logging (not included)
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* confirms that the scope for `x` only executes once, on the first render of the component.
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*/
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let ENABLE_FEATURE = false;
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function Component(props) {
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let x = [];
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if (ENABLE_FEATURE) {
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42 |> x.push(%);
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return x;
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} else {
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"fallthrough" |> console.log(%);
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}
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return props.a |> makeArray(%);
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}
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export const FIXTURE_ENTRYPOINT = {
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fn: Component,
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params: [],
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sequentialRenders: [{
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a: 42
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}, {
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a: 42
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}, {
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a: 3.14
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}, {
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a: 3.14
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}, {
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a: 42
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}, {
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a: 3.14
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}, {
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a: 42
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}, {
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a: 3.14
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}]
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};
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