New: Add vue/no-invalid-model-keys rule

docs/rules/no-invalid-model-keys.md

@@ -0,0 +1,103 @@
+---
+pageClass: rule-details
+sidebarDepth: 0
+title: vue/no-invalid-model-keys
+description: require valid keys in model option
+---
+# vue/no-invalid-model-keys
+
+> require valid keys in model option
+
+
+## :book: Rule Details
+
+This rule is aimed at preventing invalid keys in model option.
+
+<eslint-code-block :rules="{'vue/no-invalid-model-keys': ['error']}">
+```vue
+<script>
+/* ✓ GOOD */
+export default {
+  model: {
+    prop: 'list',
+  }
+}
+</script>
+```
+</eslint-code-block>
+
+<eslint-code-block :rules="{'vue/no-invalid-model-keys': ['error']}">
+```vue
+<script>
+/* ✓ GOOD */
+export default {
+  model: {
+    event: 'update'
+  }
+}
+</script>
+```
+</eslint-code-block>
+
+<eslint-code-block :rules="{'vue/no-invalid-model-keys': ['error']}">
+```vue
+<script>
+/* ✓ GOOD */
+export default {
+  model: {
+    prop: 'list',
+    event: 'update'
+  }
+}
+</script>
+```
+</eslint-code-block>
+
+<eslint-code-block :rules="{'vue/no-invalid-model-keys': ['error']}">
+```vue
+<script>
+/* ✗ BAD */
+export default {
+  model: {
+    prop: 'list',
+    events: 'update'
+  }
+}
+</script>
+```
+</eslint-code-block>
+
+<eslint-code-block :rules="{'vue/no-invalid-model-keys': ['error']}">
+```vue
+<script>
+/* ✗ BAD */
+export default {
+  model: {
+    props: 'list',
+    events: 'update'
+  }
+}
+</script>
+```
+</eslint-code-block>
+
+<eslint-code-block :rules="{'vue/no-invalid-model-keys': ['error']}">
+```vue
+<script>
+/* ✗ BAD */
+export default {
+  model: {
+    name: 'checked',
+    props: 'list',
+    event: 'update'
+  }
+}
+</script>
+```
+</eslint-code-block>
+
+
+## :mag: Implementation
+
+- [Rule source](https://github.com/vuejs/eslint-plugin-vue/blob/master/lib/rules/no-invalid-model-keys.js)
+- [Test source](https://github.com/vuejs/eslint-plugin-vue/blob/master/tests/lib/rules/no-invalid-model-keys.js)

lib/index.js

@@ -81,6 +81,7 @@ module.exports = {
     'no-empty-component-block': require('./rules/no-empty-component-block'),
     'no-empty-pattern': require('./rules/no-empty-pattern'),
     'no-extra-parens': require('./rules/no-extra-parens'),
+    'no-invalid-model-keys': require('./rules/no-invalid-model-keys'),
     'no-irregular-whitespace': require('./rules/no-irregular-whitespace'),
     'no-lifecycle-after-await': require('./rules/no-lifecycle-after-await'),
     'no-lone-template': require('./rules/no-lone-template'),

lib/rules/no-invalid-model-keys.js

@@ -0,0 +1,56 @@
+/**
+ * @fileoverview Requires valid keys in model option.
+ * @author Alex Sokolov
+ */
+'use strict'
+
+const utils = require('../utils')
+
+/**
+ * @typedef {import('../utils').GroupName} GroupName
+ */
+
+// ------------------------------------------------------------------------------
+// Rule Definition
+// ------------------------------------------------------------------------------
+/** @type {GroupName[]} */
+const GROUP_NAMES = ['model']
+
+const VALID_MODEL_KEYS = ['prop', 'event']
+
+module.exports = {
+  meta: {
+    type: 'problem',
+    docs: {
+      description: 'require valid keys in model option',
+      categories: undefined,
+      url: 'https://eslint.vuejs.org/rules/no-invalid-model-keys.html'
+    },
+    fixable: null,
+    schema: []
+  },
+  /** @param {RuleContext} context */
+  create(context) {
+    const groups = new Set(GROUP_NAMES)
+
+    // ----------------------------------------------------------------------
+    // Public
+    // ----------------------------------------------------------------------
+
+    return utils.executeOnVue(context, (obj) => {
+      const properties = utils.iterateProperties(obj, groups)
+
+      for (const o of properties) {
+        if (VALID_MODEL_KEYS.indexOf(o.name) === -1) {
+          context.report({
+            node: o.node,
+            message: "Invalid key '{{name}}' in model option.",
+            data: {
+              name: o.name
+            }
+          })
+        }
+      }
+    })
+  }
+}

tests/lib/rules/no-invalid-model-keys.js

@@ -0,0 +1,151 @@
+/**
+ * @fileoverview Prevents invalid keys in model option.
+ * @author Alex Sokolov
+ */
+'use strict'
+
+// ------------------------------------------------------------------------------
+// Requirements
+// ------------------------------------------------------------------------------
+
+const rule = require('../../../lib/rules/no-invalid-model-keys')
+const RuleTester = require('eslint').RuleTester
+
+// ------------------------------------------------------------------------------
+// Tests
+// ------------------------------------------------------------------------------
+
+const ruleTester = new RuleTester({
+  parserOptions: {
+    ecmaVersion: 2018,
+    sourceType: 'module'
+  }
+})
+ruleTester.run('no-invalid-model-keys', rule, {
+  valid: [
+    {
+      filename: 'test.vue',
+      code: `
+        export default {
+          model: {
+            prop: 'list'
+          }
+        }
+      `
+    },
+    {
+      filename: 'test.vue',
+      code: `
+        export default {
+          model: {
+            event: 'update'
+          }
+        }
+      `
+    },
+    {
+      filename: 'test.vue',
+      code: `
+        export default {
+          model: {
+            prop: 'list',
+            event: 'update'
+          }
+        }
+      `
+    }
+  ],
+
+  invalid: [
+    {
+      filename: 'test.vue',
+      code: `
+        export default {
+          model: {
+            props: 'list'
+          }
+        }
+      `,
+      errors: ["Invalid key 'props' in model option."]
+    },
+    {
+      filename: 'test.vue',
+      code: `
+        export default {
+          model: {
+            events: 'update'
+          }
+        }
+      `,
+      errors: ["Invalid key 'events' in model option."]
+    },
+    {
+      filename: 'test.vue',
+      code: `
+        export default {
+          model: {
+            props: 'list',
+            event: 'update'
+          }
+        }
+      `,
+      errors: ["Invalid key 'props' in model option."]
+    },
+    {
+      filename: 'test.vue',
+      code: `
+        export default {
+          model: {
+            prop: 'list',
+            events: 'update'
+          }
+        }
+      `,
+      errors: ["Invalid key 'events' in model option."]
+    },
+    {
+      filename: 'test.vue',
+      code: `
+        export default {
+          model: {
+            props: 'list',
+            events: 'update'
+          }
+        }
+      `,
+      errors: [
+        "Invalid key 'props' in model option.",
+        "Invalid key 'events' in model option."
+      ]
+    },
+    {
+      filename: 'test.vue',
+      code: `
+        export default {
+          model: {
+            prop: 'checked',
+            props: 'list',
+            event: 'update'
+          }
+        }
+      `,
+      errors: ["Invalid key 'props' in model option."]
+    },
+    {
+      filename: 'test.vue',
+      code: `
+        export default {
+          model: {
+            name: 'checked',
+            props: 'list',
+            event: 'update'
+          }
+        }
+      `,
+      errors: [
+        "Invalid key 'name' in model option.",
+        "Invalid key 'props' in model option."
+      ]
+    }
+  ]
+})