From f0082c1b5fb87ffae0e627c8034393bf60faf6f5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=A3o=20Louren=C3=A7o?= <jrelourenco@outlook.pt>
Date: Thu, 22 Jun 2023 13:52:41 +0000
Subject: [PATCH] feat: create type helper to infer token

---
 src/index.ts                       | 2 ++
 src/types/token-infer-many.type.ts | 3 +++
 src/types/token-infer.type.ts      | 3 +++
 3 files changed, 8 insertions(+)
 create mode 100644 src/types/token-infer-many.type.ts
 create mode 100644 src/types/token-infer.type.ts

diff --git a/src/index.ts b/src/index.ts
index 7e6eaec8..7fb76ea9 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -22,6 +22,8 @@ export * from './error/service-not-found.error';
 export { Handler } from './interfaces/handler.interface';
 export { ServiceMetadata } from './interfaces/service-metadata.interface';
 export { ServiceOptions } from './interfaces/service-options.interface';
+export { TokenInfer } from './types/token-infer.type';
+export { TokenInferMany } from './types/token-infer-many.type';
 export { Constructable } from './types/constructable.type';
 export { ServiceIdentifier } from './types/service-identifier.type';
 
diff --git a/src/types/token-infer-many.type.ts b/src/types/token-infer-many.type.ts
new file mode 100644
index 00000000..95cbbb50
--- /dev/null
+++ b/src/types/token-infer-many.type.ts
@@ -0,0 +1,3 @@
+import { Token } from '../token.class';
+
+export type TokenInferMany<T> = T extends Token<infer U> ? U[] : never;
diff --git a/src/types/token-infer.type.ts b/src/types/token-infer.type.ts
new file mode 100644
index 00000000..e4d728e7
--- /dev/null
+++ b/src/types/token-infer.type.ts
@@ -0,0 +1,3 @@
+import { Token } from '../token.class';
+
+export type TokenInfer<T> = T extends Token<infer U> ? U : never;