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perf(renderer): trim snapshot sharing type checks

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This commit is contained in:
777genius 2026-05-31 07:25:14 +03:00
parent dbc5b5bd32
commit bfabc57652
1 changed files with 15 additions and 5 deletions
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20
src/renderer/store/team/teamSnapshotStructuralSharing.ts
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@ -1,11 +1,12 @@
import type { TeamViewSnapshot } from '@shared/types'; import type { TeamViewSnapshot } from '@shared/types';
function isPlainObject(value: unknown): value is Record<string, unknown> { function arePlainObjectPair(previous: object, next: object): boolean {
if (value == null || typeof value !== 'object') { const previousPrototype = Object.getPrototypeOf(previous);
if (previousPrototype !== Object.prototype && previousPrototype !== null) {
return false; return false;
} }
const prototype = Object.getPrototypeOf(value); const nextPrototype = Object.getPrototypeOf(next);
return prototype === Object.prototype || prototype === null; return nextPrototype === Object.prototype || nextPrototype === null;
} }
export function structurallySharePlainValue<T>(previous: T, next: T): T { export function structurallySharePlainValue<T>(previous: T, next: T): T {
@ -13,6 +14,15 @@ export function structurallySharePlainValue<T>(previous: T, next: T): T {
return previous; return previous;
} }
if (
previous == null ||
next == null ||
typeof previous !== 'object' ||
typeof next !== 'object'
) {
return next;
}
if (Array.isArray(previous) && Array.isArray(next)) { if (Array.isArray(previous) && Array.isArray(next)) {
const hasLengthChange = previous.length !== next.length; const hasLengthChange = previous.length !== next.length;
let result: unknown[] | null = hasLengthChange ? new Array(next.length) : null; let result: unknown[] | null = hasLengthChange ? new Array(next.length) : null;
@ -35,7 +45,7 @@ export function structurallySharePlainValue<T>(previous: T, next: T): T {
return result ? (result as T) : previous; return result ? (result as T) : previous;
} }
if (isPlainObject(previous) && isPlainObject(next)) { if (arePlainObjectPair(previous, next)) {
const previousRecord = previous as Record<string, unknown>; const previousRecord = previous as Record<string, unknown>;
const nextRecord = next as Record<string, unknown>; const nextRecord = next as Record<string, unknown>;
const previousKeys = Object.keys(previousRecord); const previousKeys = Object.keys(previousRecord);