Add logic for unknown type

Author: mitchell-merry

src/transform/schema-object.ts

@@ -257,6 +257,9 @@ export function defaultSchemaObjectTransform(
 
   if (finalType) return finalType;
 
+  // any type
+  if (!("type" in schemaObject)) return "unknown";
+
   // if no type could be generated, fall back to “empty object” type
   return ctx.emptyObjectsUnknown ? "Record<string, unknown>" : "Record<string, never>";
 }

src/types.ts

@@ -455,6 +455,7 @@ export type SchemaObject = {
     }
   | { allOf: (SchemaObject | ReferenceObject)[]; anyOf?: (SchemaObject | ReferenceObject)[]; required?: string[] }
   | { allOf?: (SchemaObject | ReferenceObject)[]; anyOf: (SchemaObject | ReferenceObject)[]; required?: string[] }
+  | {}
 );
 
 /**

test/schema-object.test.ts

@@ -523,6 +523,11 @@ describe("Schema Object", () => {
       });
     });
   });
+
+  test("unknown", () => {
+    const generated = transformSchemaObject({}, options);
+    expect(generated).toBe(`unknown`);
+  });
 });
 
 describe("ReferenceObject", () => {