oppi.li
source dump of claude code
1/**
2 * Note: this code is hot, so is optimized for speed.
3 */
4export function difference<A>(a: Set<A>, b: Set<A>): Set<A> {
5 const result = new Set<A>()
6 for (const item of a) {
7 if (!b.has(item)) {
8 result.add(item)
9 }
10 }
11 return result
12}
13
14/**
15 * Note: this code is hot, so is optimized for speed.
16 */
17export function intersects<A>(a: Set<A>, b: Set<A>): boolean {
18 if (a.size === 0 || b.size === 0) {
19 return false
20 }
21 for (const item of a) {
22 if (b.has(item)) {
23 return true
24 }
25 }
26 return false
27}
28
29/**
30 * Note: this code is hot, so is optimized for speed.
31 */
32export function every<A>(a: ReadonlySet<A>, b: ReadonlySet<A>): boolean {
33 for (const item of a) {
34 if (!b.has(item)) {
35 return false
36 }
37 }
38 return true
39}
40
41/**
42 * Note: this code is hot, so is optimized for speed.
43 */
44export function union<A>(a: Set<A>, b: Set<A>): Set<A> {
45 const result = new Set<A>()
46 for (const item of a) {
47 result.add(item)
48 }
49 for (const item of b) {
50 result.add(item)
51 }
52 return result
53}