27 lines
1.1 KiB
TypeScript
27 lines
1.1 KiB
TypeScript
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/**
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* Test-local selector-hook binder: the engine carries no hook since the store
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* migration (runtime is React-free); the renderer binds in production, specs
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* bind here. Delegates to web-react's bindSnapshotSelector SOURCE (same
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* with-selector uSES shim as production, so selector-level render economics —
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* a top-level snapshot swap with an unchanged slice does NOT re-render — hold
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* in Profiler-count specs). Source-relative import: the package dependency
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* edge to web-react is gone (store migration §7); tests reach the sibling
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* package the same way they reach their own src internals.
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*/
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import { bindSnapshotSelector } from '../../web-react/src/bind.ts'
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/** Minimal observable source (engine stores and scripted fakes both satisfy it). */
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export interface HookSource<T> {
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getSnapshot(): T
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subscribe(fn: () => void): () => void
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}
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/**
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* Bind a selector hook over a snapshot source.
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* @param src - the source.
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* @returns a SnapshotSelectorHook-shaped hook.
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*/
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export function hookOf<T>(src: HookSource<T>) {
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return bindSnapshotSelector<T>(src)
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}
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