Fix #2476

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Unreleased
 
+### Bug Fixes
+
+-   Fixed an issue where a namespace would not be created for merged function-namespaces only containing types, #2476.
+
 ## v0.25.6 (2024-01-01)
 
 ### Bug Fixes

src/lib/converter/symbols.ts

@@ -484,9 +484,7 @@ function convertFunctionOrMethod(
         createSignature(scope, ReflectionKind.CallSignature, sig, symbol);
     }
 
-    convertFunctionProperties(scope, symbol, type);
-
-    return ts.SymbolFlags.NamespaceModule;
+    return convertFunctionProperties(scope, symbol, type);
 }
 
 // getDeclaredTypeOfSymbol gets the INSTANCE type
@@ -1069,6 +1067,8 @@ function convertFunctionProperties(
             !hasAnyFlag(symbol.flags, nsFlags))
     ) {
         convertSymbols(context, type.getProperties());
+
+        return ts.SymbolFlags.NamespaceModule;
     }
 }
 

src/test/converter2/issues/gh2476.ts

@@ -0,0 +1,11 @@
+declare function test(options?: test.Options): void;
+
+declare namespace test {
+    /** Test options */
+    interface Options {
+        a: string;
+        b: number;
+    }
+}
+
+export { test };

src/test/issues.c2.test.ts

@@ -1350,4 +1350,15 @@ describe("Issue Tests", () => {
             },
         ]);
     });
+
+    it("Creates a separate namespace for `declare namespace` case #2476", () => {
+        const project = convert();
+
+        equal(project.children?.map((c) => [c.name, c.kind]), [
+            ["test", ReflectionKind.Namespace],
+            ["test", ReflectionKind.Function],
+        ]);
+
+        equal(project.children[0].children?.map((c) => c.name), ["Options"]);
+    });
 });