(owner: Owner | null)
| 6 | } |
| 7 | |
| 8 | export function createTabMemory(owner: Owner | null) { |
| 9 | const entries = new Map<string, Map<string, Entry>>() |
| 10 | |
| 11 | const remove = (key: string) => { |
| 12 | const state = entries.get(key) |
| 13 | if (!state) return |
| 14 | for (const entry of state.values()) entry.dispose() |
| 15 | entries.delete(key) |
| 16 | } |
| 17 | |
| 18 | return { |
| 19 | ensure<T>(key: string, name: string, init: () => T) { |
| 20 | const state = entries.get(key) ?? new Map<string, Entry>() |
| 21 | if (!entries.has(key)) entries.set(key, state) |
| 22 | const existing = state.get(name) |
| 23 | if (existing) return existing.value as T |
| 24 | const entry = createRoot((dispose) => ({ value: init(), dispose }), owner) |
| 25 | state.set(name, entry) |
| 26 | return entry.value |
| 27 | }, |
| 28 | remove, |
| 29 | dispose() { |
| 30 | for (const key of entries.keys()) remove(key) |
| 31 | }, |
| 32 | } |
| 33 | } |
no outgoing calls
no test coverage detected