fix: expose terminal type (#43)

src/index.ts

@@ -7,3 +7,4 @@ export * from './lib/cls.module';
 export * from './lib/cls.service';
 export * from './lib/cls.decorators';
 export * from './lib/cls.interfaces';
+export { Terminal } from './types/terminal.type';

src/lib/cls.service.spec.ts

@@ -1,5 +1,5 @@
 import { Test, TestingModule } from '@nestjs/testing';
-import { Terminal } from '../types/recursive-key-of.type';
+import { Terminal } from '../types/terminal.type';
 import { ClsServiceManager } from './cls-service-manager';
 import { CLS_DEFAULT_NAMESPACE, CLS_ID } from './cls.constants';
 import { ClsStore } from './cls.interfaces';

src/types/recursive-key-of.type.ts

@@ -1,3 +1,5 @@
+import { BrandedTerminal } from './terminal.type';
+
 type TerminalType =
     | string
     | number
@@ -13,12 +15,6 @@ type TerminalType =
     | BrandedTerminal
     | ((...args: any) => any);
 
-const TERMINAL_BRAND = Symbol();
-class BrandedTerminal {
-    private [TERMINAL_BRAND]?: void;
-}
-export type Terminal<T> = T & BrandedTerminal;
-
 /**
  * Deep nested keys of an interface with dot syntax
  *

src/types/terminal.type.ts

@@ -0,0 +1,10 @@
+const TERMINAL_BRAND = Symbol();
+export class BrandedTerminal {
+    private [TERMINAL_BRAND]?: void;
+}
+
+/**
+ * Use the terminal type to prevent generation of property
+ * paths to nested properties of the type within the ClsStore
+ */
+export type Terminal<T> = T & BrandedTerminal;