From cadec3b1c8043ae63da8e7be4fe23deb1fa0085f Mon Sep 17 00:00:00 2001
From: IU <yoyo930021@gmail.com>
Date: Tue, 21 Apr 2020 16:11:32 +0800
Subject: [PATCH] Fix detect Vue3 defineComponent (#1088)

Co-authored-by: Yosuke Ota <otameshiyo23@gmail.com>
---
 lib/utils/index.js               |  6 +++++
 tests/lib/rules/no-dupe-keys.js  | 38 ++++++++++++++++++++++++++++++++
 tests/lib/utils/vue-component.js |  6 +++++
 3 files changed, 50 insertions(+)

diff --git a/lib/utils/index.js b/lib/utils/index.js
index e784f2ab3..b302cd6cb 100644
--- a/lib/utils/index.js
+++ b/lib/utils/index.js
@@ -550,6 +550,12 @@ module.exports = {
           const isAppVueComponent = isObjectArgument(node)
           return isAppVueComponent
         }
+        if (callee.name === 'defineComponent') {
+          // for Vue.js 3.x
+          // defineComponent({})
+          const isDestructedVueComponent = isObjectArgument(node)
+          return isDestructedVueComponent
+        }
       }
     }
 
diff --git a/tests/lib/rules/no-dupe-keys.js b/tests/lib/rules/no-dupe-keys.js
index 0844173f0..a3bc06e77 100644
--- a/tests/lib/rules/no-dupe-keys.js
+++ b/tests/lib/rules/no-dupe-keys.js
@@ -639,6 +639,44 @@ ruleTester.run('no-dupe-keys', rule, {
         message: 'Duplicated key \'foo\'.',
         line: 9
       }]
+    },
+    {
+      filename: 'test.js',
+      code: `
+        defineComponent({
+          foo: {
+            bar: String
+          },
+          data: {
+            bar: null
+          },
+        })
+      `,
+      options: [{ groups: ['foo'] }],
+      parserOptions: { ecmaVersion: 6 },
+      errors: [{
+        message: 'Duplicated key \'bar\'.',
+        line: 7
+      }]
+    },
+    {
+      filename: 'test.js',
+      code: `
+        export default defineComponent({
+          foo: {
+            bar: String
+          },
+          data: {
+            bar: null
+          },
+        })
+      `,
+      options: [{ groups: ['foo'] }],
+      parserOptions: { ecmaVersion: 6, sourceType: 'module' },
+      errors: [{
+        message: 'Duplicated key \'bar\'.',
+        line: 7
+      }]
     }
   ]
 })
diff --git a/tests/lib/utils/vue-component.js b/tests/lib/utils/vue-component.js
index 69d663e92..794075d47 100644
--- a/tests/lib/utils/vue-component.js
+++ b/tests/lib/utils/vue-component.js
@@ -311,6 +311,12 @@ function invalidTests (ext) {
       `,
       parserOptions,
       errors: (ext === 'js' ? [] : [makeError(2)]).concat([makeError(8)])
+    },
+    {
+      filename: `test.${ext}`,
+      code: `export default defineComponent({})`,
+      parserOptions,
+      errors: [makeError(1)]
     }
   ]
 }