fix Subcommand type extraction (#407)

Effect-TS · Dec 3, 2023 · 77b31e8 · 77b31e8
1 parent f15e5c3
commit 77b31e8
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diff --git a/.changeset/chatty-points-fetch.md b/.changeset/chatty-points-fetch.md
@@ -0,0 +1,5 @@
+---
+"@effect/cli": patch
+---
+
+fix Subcommand type extraction
diff --git a/src/CommandDescriptor.ts b/src/CommandDescriptor.ts
@@ -96,8 +96,11 @@ export declare namespace Command {
    */
   export type Subcommands<
     A extends NonEmptyReadonlyArray<readonly [id: unknown, command: Command<any>]>
-  > = A[number] extends readonly [infer Id, Command<infer Value>] ? readonly [id: Id, value: Value]
-    : never
+  > = {
+    [I in keyof A]: A[I] extends readonly [infer Id, Command<infer Value>]
+      ? readonly [id: Id, value: Value]
+      : never
+  }[number]
 }
 
 /**