source dump of claude code
1import type { ReactNode } from 'react'
2import type { OptionWithDescription } from './select.js'
3
4type OptionMapItem<T> = {
5 label: ReactNode
6 value: T
7 description?: string
8 previous: OptionMapItem<T> | undefined
9 next: OptionMapItem<T> | undefined
10 index: number
11}
12
13export default class OptionMap<T> extends Map<T, OptionMapItem<T>> {
14 readonly first: OptionMapItem<T> | undefined
15 readonly last: OptionMapItem<T> | undefined
16
17 constructor(options: OptionWithDescription<T>[]) {
18 const items: Array<[T, OptionMapItem<T>]> = []
19 let firstItem: OptionMapItem<T> | undefined
20 let lastItem: OptionMapItem<T> | undefined
21 let previous: OptionMapItem<T> | undefined
22 let index = 0
23
24 for (const option of options) {
25 const item = {
26 label: option.label,
27 value: option.value,
28 description: option.description,
29 previous,
30 next: undefined,
31 index,
32 }
33
34 if (previous) {
35 previous.next = item
36 }
37
38 firstItem ||= item
39 lastItem = item
40
41 items.push([option.value, item])
42 index++
43 previous = item
44 }
45
46 super(items)
47 this.first = firstItem
48 this.last = lastItem
49 }
50}