src/tests.ts

@@ -1,5 +1,5 @@
 import { Simplify } from "type-fest"
-import { Trait, TraitAbstractMembers, TraitImplInstance, expresses, trait } from "."
+import { GetTraitAbstractMembers, GetTraitClass, GetTraitImplClass, GetTraitImplInstance, GetTraitInstance, Trait, TraitAbstractMembers, TraitImplInstance, expresses, trait } from "."
 import { MergeInheritanceTree, TraitsAbstractMembers } from "./util"
 import { Call, Fn, Tuples } from "hotscript"
 
@@ -41,13 +41,6 @@ const ActiveStatefulSubscription = trait<ActiveStatefulSubscriptionAbstractMembe
     class ActiveStatefulSubscription extends Super {}
 )
 
-
-interface AbstractMembersOfTrait extends Fn {
-    return: this["arg0"] extends Trait<infer AbstractMembers, any>
-        ? AbstractMembers
-        : never
-}
-
 // type Test = Simplify<TraitImplInstance<ReturnType<typeof Identifiable<bigint>>>>
 type Test1 = [
     TraitAbstractMembers<typeof StatefulSubscription>,
@@ -58,12 +51,10 @@ type Test2 = TraitsAbstractMembers<[
     typeof ActiveStatefulSubscription,
 ]>
 type Test3 = Simplify<
-    MergeInheritanceTree<
-        Call<Tuples.Map<AbstractMembersOfTrait>, [
+    Call<Tuples.Map<GetTraitClass>, [
         typeof StatefulSubscription,
         typeof ActiveStatefulSubscription,
     ]>
-    >
 >
 // type Test2 = Simplify<MergeInheritanceTree<Test1>>
 

src/trait.ts

@@ -1,3 +1,4 @@
+import { Fn } from "hotscript"
 import { AbstractClass, Class, Opaque } from "type-fest"
 import { StaticMembers } from "./util"
 
@@ -56,6 +57,10 @@ export type TraitAbstractMembers<T> = (
         : never
 )
 
+export interface GetTraitAbstractMembers extends Fn {
+    return: TraitAbstractMembers<this["arg0"]>
+}
+
 export type TraitImplClass<T> = (
     T extends Trait<infer AbstractMembers, infer ImplWithAbstractMembers>
         ? RemoveAbstractMembersFromImpl<
@@ -65,6 +70,10 @@ export type TraitImplClass<T> = (
         : never
 )
 
+export interface GetTraitImplClass extends Fn {
+    return: TraitImplClass<this["arg0"]>
+}
+
 export type TraitImplInstance<T> = (
     T extends Trait<infer AbstractMembers, infer ImplWithAbstractMembers>
         ? RemoveAbstractMembersFromImplInstance<
@@ -74,18 +83,30 @@ export type TraitImplInstance<T> = (
         : never
 )
 
+export interface GetTraitImplInstance extends Fn {
+    return: TraitImplInstance<this["arg0"]>
+}
+
 export type TraitClass<T> = (
     T extends Trait<any, infer ImplWithAbstractMembers>
         ? ImplWithAbstractMembers
         : never
 )
 
+export interface GetTraitClass extends Fn {
+    return: TraitClass<this["arg0"]>
+}
+
 export type TraitInstance<T> = (
     T extends Trait<any, infer ImplWithAbstractMembers>
         ? InstanceType<ImplWithAbstractMembers>
         : never
 )
 
+export interface GetTraitInstance extends Fn {
+    return: TraitInstance<this["arg0"]>
+}
+
 
 export type TraitApplierSuperTag = "@thilawyn/traitify-ts/TraitApplierSuper"