Fix false positives in no-missing-keys (#313)

Author: ota-meshi

lib/utils/locale-messages.ts

@@ -310,6 +310,7 @@ export class LocaleMessages {
       const paths = [...parsePath(key)]
       let lasts = localeMessages
       const targetPaths = []
+      let hasMissing = false
       while (paths.length) {
         const path = paths.shift()!
         targetPaths.push(path)
@@ -323,11 +324,12 @@ export class LocaleMessages {
           if (missingPath.length <= targetPaths.length) {
             missingPath = targetPaths
           }
+          hasMissing = true
           break
         }
         lasts = values
       }
-      if (!missingPath.length) {
+      if (!hasMissing) {
         return null
       }
     }

tests/fixtures/no-missing-keys/complex-locales/locales/en.json

@@ -0,0 +1,7 @@
+{
+  "nesting01": {
+    "a": {
+      "a": "message"
+    }
+  }
+}

tests/fixtures/no-missing-keys/complex-locales/locales/ja.json

@@ -0,0 +1,7 @@
+{
+  "nesting01": {
+    "a": {
+      "b": "message"
+    }
+  }
+}

tests/lib/rules/no-missing-keys.ts

@@ -214,6 +214,20 @@ tester.run('no-missing-keys', rule as never, {
           }
         }
         </script>`
+      },
+      {
+        filename: 'test.vue',
+        code: `
+        <template>
+          {{$t('nesting01.a.a')}}
+          {{$t('nesting01.a.b')}}
+        </template>`,
+        settings: {
+          'vue-i18n': {
+            localeDir:
+              './tests/fixtures/no-missing-keys/complex-locales/locales/*.json'
+          }
+        }
       }
     ]
   ),