fix: respect implicit status code (#205)

cheetah.ts

@@ -664,14 +664,18 @@ export class cheetah extends base<cheetah>() {
       }
 
       case 'Object': {
-        $.b = JSON.stringify($.b)
+        try {
+          if ((($.b as unknown) as { code: number }).code) {
+            $.c = (($.b as unknown) as { code: number }).code
+          }
 
-        if (!$.h.has('content-type')) {
-          $.h.set('content-type', 'application/json; charset=utf-8')
-        }
+          $.b = JSON.stringify($.b)
 
-        if ((($.b as unknown) as { code: number }).code) {
-          $.c = (($.b as unknown) as { code: number }).code
+          if (!$.h.has('content-type')) {
+            $.h.set('content-type', 'application/json; charset=utf-8')
+          }
+        } catch (err) {
+          console.log(err)
         }
 
         break

test/response.test.ts

@@ -6,13 +6,23 @@ Deno.test('Response', async (t) => {
   const app = new cheetah()
 
   await t.step('res.code', async () => {
-    app.get('/code', (c) => {
+    app.get('/code-explicit', (c) => {
       c.res.code = 101
     })
     assertEquals(
-      (await app.fetch(new Request('http://localhost/code'))).status,
+      (await app.fetch(new Request('http://localhost/code-explicit'))).status,
       101,
     )
+
+    app.get('/code-implicit', () => {
+      return {
+        code: 403,
+      }
+    })
+    assertEquals(
+      (await app.fetch(new Request('http://localhost/code-implicit'))).status,
+      403,
+    )
   })
 
   await t.step('res.bodySize', async () => {