Perf: slightly faster getShapeAtPoint (#3416)

This PR makes a small improvement to the speed of `getShapeAtPoint`. It
removes `Editor.getCurrentPageRenderingShapesSorted`.

### Change Type

- [x] `sdk` — Changes the tldraw SDK
- [x] `improvement` — Improving existing features
This commit is contained in:
Steve Ruiz 2024-04-09 13:57:46 +01:00 committed by GitHub
parent 5347c5f30e
commit 3f64bf8c5b
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GPG key ID: B5690EEEBB952194
4 changed files with 35 additions and 6 deletions

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@ -20,3 +20,31 @@ export function measureDuration(_target: any, propertyKey: string, descriptor: P
}
return descriptor
}
const averages = new Map<any, { total: number; count: number }>()
/** @internal */
export function measureAverageDuration(
_target: any,
propertyKey: string,
descriptor: PropertyDescriptor
) {
const originalMethod = descriptor.value
descriptor.value = function (...args: any[]) {
const start = performance.now()
const result = originalMethod.apply(this, args)
const end = performance.now()
const value = averages.get(descriptor.value)!
const length = end - start
const total = value.total + length
const count = value.count + 1
averages.set(descriptor.value, { total, count })
// eslint-disable-next-line no-console
console.log(
`${propertyKey} took ${(end - start).toFixed(2)}ms | average ${(total / count).toFixed(2)}ms`
)
return result
}
averages.set(descriptor.value, { total: 0, count: 0 })
return descriptor
}