feat: nullable

ajv-validator · Oct 23, 2023 · d327d66 · d327d66
1 parent 490eb8c
commit d327d66
Showing 1 changed file with 11 additions and 13 deletions.
diff --git a/lib/types/json-schema.ts b/lib/types/json-schema.ts
@@ -172,16 +172,14 @@ export type RequiredMembers<T> = StrictNullChecksWrapper<
   UncheckedRequiredMembers<T>
 >
 
-type Nullable<T> = undefined extends T
-  ? {
-      nullable: true
-      const?: null // any non-null value would fail `const: null`, `null` would fail any other value in const
-      enum?: Readonly<(T | null)[]> // `null` must be explicitly included in "enum" for `null` to pass
-      default?: T | null
-    }
-  : {
-      nullable?: false
-      const?: T
-      enum?: Readonly<T[]>
-      default?: T
-    }
+type Nullable<T> = {
+  nullable: true
+  const?: null // any non-null value would fail `const: null`, `null` would fail any other value in const
+  enum?: Readonly<(T | null)[]> // `null` must be explicitly included in "enum" for `null` to pass
+  default?: T | null
+} | {
+  nullable?: false
+  const?: T
+  enum?: Readonly<T[]>
+  default?: T
+}