File size: 467 Bytes
8059bf0 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | let globalStableObjectKeySeed = 0
/**
* 为对象实例生成稳定 key（基于 WeakMap，不污染业务对象）
*/
export function createStableObjectKeyResolver<T extends object>(prefix = 'item') {
const keyMap = new WeakMap<T, string>()
return (item: T): string => {
const cached = keyMap.get(item)
if (cached) {
return cached
}
const key = `${prefix}-${++globalStableObjectKeySeed}`
keyMap.set(item, key)
return key
}
}
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