refactoring

Resolve #7779
2021-11-12 02:02:25 +09:00
parent 037837b551
commit 0e4a111f81
1714 changed files with 20803 additions and 11751 deletions
--- a/packages/backend/src/prelude/relation.ts
+++ b/packages/backend/src/prelude/relation.ts
@@ -0,0 +1,5 @@
+export type Predicate<T> = (a: T) => boolean;
+
+export type Relation<T, U> = (a: T, b: U) => boolean;
+
+export type EndoRelation<T> = Relation<T, T>;