Better typings for Promise.all(), like microsoft#31117

jablko · Aug 29, 2019 · 73dad13 · 73dad13
1 parent 29f81fc
commit 73dad13
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diff --git a/src/lib/es2015.iterable.d.ts b/src/lib/es2015.iterable.d.ts
@@ -203,7 +203,7 @@ interface PromiseConstructor {
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    all<TAll>(values: Iterable<TAll | PromiseLike<TAll>>): Promise<TAll[]>;
+    all<TAll>(values: Iterable<TAll>): Promise<(TAll extends PromiseLike<infer UAll> ? UAll : TAll)[]>;
 }
 
 declare namespace Reflect {

diff --git a/src/lib/es2015.promise.d.ts b/src/lib/es2015.promise.d.ts
@@ -18,79 +18,79 @@ interface PromiseConstructor {
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    all<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>, T9 | PromiseLike<T9>, T10 | PromiseLike<T10>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]>;
+    all<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(values: [T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6, T7 extends PromiseLike<infer U7> ? U7 : T7, T8 extends PromiseLike<infer U8> ? U8 : T8, T9 extends PromiseLike<infer U9> ? U9 : T9, T10 extends PromiseLike<infer U10> ? U10 : T10]>;
 
     /**
      * Creates a Promise that is resolved with an array of results when all of the provided Promises
      * resolve, or rejected when any Promise is rejected.
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    all<T1, T2, T3, T4, T5, T6, T7, T8, T9>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>, T9 | PromiseLike<T9>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9]>;
+    all<T1, T2, T3, T4, T5, T6, T7, T8, T9>(values: [T1, T2, T3, T4, T5, T6, T7, T8, T9]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6, T7 extends PromiseLike<infer U7> ? U7 : T7, T8 extends PromiseLike<infer U8> ? U8 : T8, T9 extends PromiseLike<infer U9> ? U9 : T9]>;
 
     /**
      * Creates a Promise that is resolved with an array of results when all of the provided Promises
      * resolve, or rejected when any Promise is rejected.
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    all<T1, T2, T3, T4, T5, T6, T7, T8>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8]>;
+    all<T1, T2, T3, T4, T5, T6, T7, T8>(values: [T1, T2, T3, T4, T5, T6, T7, T8]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6, T7 extends PromiseLike<infer U7> ? U7 : T7, T8 extends PromiseLike<infer U8> ? U8 : T8]>;
 
     /**
      * Creates a Promise that is resolved with an array of results when all of the provided Promises
      * resolve, or rejected when any Promise is rejected.
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    all<T1, T2, T3, T4, T5, T6, T7>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>]): Promise<[T1, T2, T3, T4, T5, T6, T7]>;
+    all<T1, T2, T3, T4, T5, T6, T7>(values: [T1, T2, T3, T4, T5, T6, T7]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6, T7 extends PromiseLike<infer U7> ? U7 : T7]>;
 
     /**
      * Creates a Promise that is resolved with an array of results when all of the provided Promises
      * resolve, or rejected when any Promise is rejected.
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    all<T1, T2, T3, T4, T5, T6>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>]): Promise<[T1, T2, T3, T4, T5, T6]>;
+    all<T1, T2, T3, T4, T5, T6>(values: [T1, T2, T3, T4, T5, T6]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6]>;
 
     /**
      * Creates a Promise that is resolved with an array of results when all of the provided Promises
      * resolve, or rejected when any Promise is rejected.
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    all<T1, T2, T3, T4, T5>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>]): Promise<[T1, T2, T3, T4, T5]>;
+    all<T1, T2, T3, T4, T5>(values: [T1, T2, T3, T4, T5]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5]>;
 
     /**
      * Creates a Promise that is resolved with an array of results when all of the provided Promises
      * resolve, or rejected when any Promise is rejected.
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    all<T1, T2, T3, T4>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>]): Promise<[T1, T2, T3, T4]>;
+    all<T1, T2, T3, T4>(values: [T1, T2, T3, T4]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4]>;
 
     /**
      * Creates a Promise that is resolved with an array of results when all of the provided Promises
      * resolve, or rejected when any Promise is rejected.
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    all<T1, T2, T3>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>]): Promise<[T1, T2, T3]>;
+    all<T1, T2, T3>(values: [T1, T2, T3]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3]>;
 
     /**
      * Creates a Promise that is resolved with an array of results when all of the provided Promises
      * resolve, or rejected when any Promise is rejected.
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    all<T1, T2>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>]): Promise<[T1, T2]>;
+    all<T1, T2>(values: [T1, T2]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2]>;
 
     /**
      * Creates a Promise that is resolved with an array of results when all of the provided Promises
      * resolve, or rejected when any Promise is rejected.
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    all<T>(values: (T | PromiseLike<T>)[]): Promise<T[]>;
+    all<T>(values: T[]): Promise<(T extends PromiseLike<infer U> ? U : T)[]>;
 
     /**
      * Creates a Promise that is resolved or rejected when any of the provided Promises are resolved

diff --git a/tests/baselines/reference/correctOrderOfPromiseMethod.types b/tests/baselines/reference/correctOrderOfPromiseMethod.types
@@ -30,9 +30,9 @@ async function countEverything(): Promise<number> {
 >resultB : B[]
 >await Promise.all([        providerA(),        providerB(),    ]) : [A[], B[]]
 >Promise.all([        providerA(),        providerB(),    ]) : Promise<[A[], B[]]>
->Promise.all : { <TAll>(values: Iterable<TAll | PromiseLike<TAll>>): Promise<TAll[]>; <T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>, T9 | PromiseLike<T9>, T10 | PromiseLike<T10>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]>; <T1, T2, T3, T4, T5, T6, T7, T8, T9>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>, T9 | PromiseLike<T9>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9]>; <T1, T2, T3, T4, T5, T6, T7, T8>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8]>; <T1, T2, T3, T4, T5, T6, T7>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>]): Promise<[T1, T2, T3, T4, T5, T6, T7]>; <T1, T2, T3, T4, T5, T6>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>]): Promise<[T1, T2, T3, T4, T5, T6]>; <T1, T2, T3, T4, T5>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>]): Promise<[T1, T2, T3, T4, T5]>; <T1, T2, T3, T4>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>]): Promise<[T1, T2, T3, T4]>; <T1, T2, T3>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>]): Promise<[T1, T2, T3]>; <T1, T2>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>]): Promise<[T1, T2]>; <T>(values: (T | PromiseLike<T>)[]): Promise<T[]>; }
+>Promise.all : { <TAll>(values: Iterable<TAll>): Promise<(TAll extends PromiseLike<infer UAll> ? UAll : TAll)[]>; <T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(values: [T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6, T7 extends PromiseLike<infer U7> ? U7 : T7, T8 extends PromiseLike<infer U8> ? U8 : T8, T9 extends PromiseLike<infer U9> ? U9 : T9, T10 extends PromiseLike<infer U10> ? U10 : T10]>; <T1, T2, T3, T4, T5, T6, T7, T8, T9>(values: [T1, T2, T3, T4, T5, T6, T7, T8, T9]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6, T7 extends PromiseLike<infer U7> ? U7 : T7, T8 extends PromiseLike<infer U8> ? U8 : T8, T9 extends PromiseLike<infer U9> ? U9 : T9]>; <T1, T2, T3, T4, T5, T6, T7, T8>(values: [T1, T2, T3, T4, T5, T6, T7, T8]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6, T7 extends PromiseLike<infer U7> ? U7 : T7, T8 extends PromiseLike<infer U8> ? U8 : T8]>; <T1, T2, T3, T4, T5, T6, T7>(values: [T1, T2, T3, T4, T5, T6, T7]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6, T7 extends PromiseLike<infer U7> ? U7 : T7]>; <T1, T2, T3, T4, T5, T6>(values: [T1, T2, T3, T4, T5, T6]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6]>; <T1, T2, T3, T4, T5>(values: [T1, T2, T3, T4, T5]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5]>; <T1, T2, T3, T4>(values: [T1, T2, T3, T4]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4]>; <T1, T2, T3>(values: [T1, T2, T3]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3]>; <T1, T2>(values: [T1, T2]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2]>; <T>(values: T[]): Promise<(T extends PromiseLike<infer U> ? U : T)[]>; }
 >Promise : PromiseConstructor
->all : { <TAll>(values: Iterable<TAll | PromiseLike<TAll>>): Promise<TAll[]>; <T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>, T9 | PromiseLike<T9>, T10 | PromiseLike<T10>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]>; <T1, T2, T3, T4, T5, T6, T7, T8, T9>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>, T9 | PromiseLike<T9>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9]>; <T1, T2, T3, T4, T5, T6, T7, T8>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8]>; <T1, T2, T3, T4, T5, T6, T7>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>]): Promise<[T1, T2, T3, T4, T5, T6, T7]>; <T1, T2, T3, T4, T5, T6>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>]): Promise<[T1, T2, T3, T4, T5, T6]>; <T1, T2, T3, T4, T5>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>]): Promise<[T1, T2, T3, T4, T5]>; <T1, T2, T3, T4>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>]): Promise<[T1, T2, T3, T4]>; <T1, T2, T3>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>]): Promise<[T1, T2, T3]>; <T1, T2>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>]): Promise<[T1, T2]>; <T>(values: (T | PromiseLike<T>)[]): Promise<T[]>; }
+>all : { <TAll>(values: Iterable<TAll>): Promise<(TAll extends PromiseLike<infer UAll> ? UAll : TAll)[]>; <T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(values: [T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6, T7 extends PromiseLike<infer U7> ? U7 : T7, T8 extends PromiseLike<infer U8> ? U8 : T8, T9 extends PromiseLike<infer U9> ? U9 : T9, T10 extends PromiseLike<infer U10> ? U10 : T10]>; <T1, T2, T3, T4, T5, T6, T7, T8, T9>(values: [T1, T2, T3, T4, T5, T6, T7, T8, T9]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6, T7 extends PromiseLike<infer U7> ? U7 : T7, T8 extends PromiseLike<infer U8> ? U8 : T8, T9 extends PromiseLike<infer U9> ? U9 : T9]>; <T1, T2, T3, T4, T5, T6, T7, T8>(values: [T1, T2, T3, T4, T5, T6, T7, T8]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6, T7 extends PromiseLike<infer U7> ? U7 : T7, T8 extends PromiseLike<infer U8> ? U8 : T8]>; <T1, T2, T3, T4, T5, T6, T7>(values: [T1, T2, T3, T4, T5, T6, T7]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6, T7 extends PromiseLike<infer U7> ? U7 : T7]>; <T1, T2, T3, T4, T5, T6>(values: [T1, T2, T3, T4, T5, T6]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5, T6 extends PromiseLike<infer U6> ? U6 : T6]>; <T1, T2, T3, T4, T5>(values: [T1, T2, T3, T4, T5]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4, T5 extends PromiseLike<infer U5> ? U5 : T5]>; <T1, T2, T3, T4>(values: [T1, T2, T3, T4]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3, T4 extends PromiseLike<infer U4> ? U4 : T4]>; <T1, T2, T3>(values: [T1, T2, T3]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2, T3 extends PromiseLike<infer U3> ? U3 : T3]>; <T1, T2>(values: [T1, T2]): Promise<[T1 extends PromiseLike<infer U1> ? U1 : T1, T2 extends PromiseLike<infer U2> ? U2 : T2]>; <T>(values: T[]): Promise<(T extends PromiseLike<infer U> ? U : T)[]>; }
 >[        providerA(),        providerB(),    ] : [Promise<A[]>, Promise<B[]>]
 
         providerA(),