New: add no-use-computed-property-like-method rules

docs/rules/README.md

@@ -320,6 +320,7 @@ For example:
 | [vue/no-unsupported-features](./no-unsupported-features.md) | disallow unsupported Vue.js syntax on the specified version | :wrench: |
 | [vue/no-unused-properties](./no-unused-properties.md) | disallow unused properties |  |
 | [vue/no-unused-refs](./no-unused-refs.md) | disallow unused refs |  |
+| [vue/no-use-computed-property-like-method](./no-use-computed-property-like-method.md) | disallow use computed property like method |  |
 | [vue/no-useless-mustaches](./no-useless-mustaches.md) | disallow unnecessary mustache interpolations | :wrench: |
 | [vue/no-useless-v-bind](./no-useless-v-bind.md) | disallow unnecessary `v-bind` directives | :wrench: |
 | [vue/padding-line-between-blocks](./padding-line-between-blocks.md) | require or disallow padding lines between blocks | :wrench: |
@@ -365,7 +366,7 @@ The following rules extend the rules provided by ESLint itself and apply them to
 | [vue/no-restricted-syntax](./no-restricted-syntax.md) | disallow specified syntax |  |
 | [vue/no-sparse-arrays](./no-sparse-arrays.md) | disallow sparse arrays |  |
 | [vue/no-useless-concat](./no-useless-concat.md) | disallow unnecessary concatenation of literals or template literals |  |
-| [vue/object-curly-newline](./object-curly-newline.md) | enforce consistent line breaks after opening and before closing braces | :wrench: |
+| [vue/object-curly-newline](./object-curly-newline.md) | enforce consistent line breaks inside braces | :wrench: |
 | [vue/object-curly-spacing](./object-curly-spacing.md) | enforce consistent spacing inside braces | :wrench: |
 | [vue/object-property-newline](./object-property-newline.md) | enforce placing object properties on separate lines | :wrench: |
 | [vue/operator-linebreak](./operator-linebreak.md) | enforce consistent linebreak style for operators | :wrench: |

docs/rules/no-use-computed-property-like-method.md

@@ -0,0 +1,340 @@
+---
+pageClass: rule-details
+sidebarDepth: 0
+title: vue/no-use-computed-property-like-method
+description: disallow use computed property like method
+---
+# vue/no-use-computed-property-like-method
+
+> disallow use computed property like method
+
+- :exclamation: <badge text="This rule has not been released yet." vertical="middle" type="error"> ***This rule has not been released yet.*** </badge>
+
+## :book: Rule Details
+
+This rule disallows to use computed property like method.
+
+<eslint-code-block :rules="{'vue/no-use-computed-property-like-method': ['error']}">
+
+```vue
+<script>
+export default {
+  data() {
+    return {
+      dataString: 'dataString',
+      dataNumber: 10,
+      dataObject: {
+        inside: 'inside'
+      },
+      dataArray: [1, 2, 3, 4, 5],
+      dataBoolean: true,
+      dataFunction() {
+        alert('dataFunction')
+      }
+    }
+  },
+  props: {
+    propsString: String,
+    propsNumber: Number,
+    propsObject: Object,
+    propsArray: Array,
+    propsBoolean: Boolean,
+    propsFunction: Function,
+
+    objectPropsString: {
+      type: String
+    },
+    objectPropsNumber: {
+      type: Number
+    },
+    objectPropsObject: {
+      type: Object
+    },
+    objectPropsArray: {
+      type: Array
+    },
+    objectPropsBoolean: {
+      type: Boolean
+    },
+    objectPropsFunction: {
+      type: Function
+    }
+  },
+  computed: {
+    computedReturnDataString() {
+      return this.dataString
+    },
+    computedReturnDataNumber() {
+      return this.dataNumber
+    },
+    computedReturnDataObject() {
+      return this.dataObject
+    },
+    computedReturnDataArray() {
+      return this.dataArray
+    },
+    computedReturnDataBoolean() {
+      return this.dataBoolean
+    },
+    computedReturnDataFunction() {
+      return this.dataFunction
+    },
+
+    computedReturnPropsString() {
+      return this.propsString
+    },
+    computedReturnPropsNumber() {
+      return this.propsNumber
+    },
+    computedReturnPropsObject() {
+      return this.propsObject
+    },
+    computedReturnPropsArray() {
+      return this.propsArray
+    },
+    computedReturnPropsBoolean() {
+      return this.propsBoolean
+    },
+    computedReturnPropsFunction() {
+      return this.propsFunction
+    },
+
+    computedReturnObjectPropsString() {
+      return this.objectPropsString
+    },
+    computedReturnObjectPropsNumber() {
+      return this.objectPropsNumber
+    },
+    computedReturnObjectPropsObject() {
+      return this.objectPropsObject
+    },
+    computedReturnObjectPropsArray() {
+      return this.objectPropsArray
+    },
+    computedReturnObjectPropsBoolean() {
+      return this.objectPropsBoolean
+    },
+    computedReturnObjectPropsFunction() {
+      return this.objectPropsFunction
+    },
+
+    computedReturnString() {
+      return 'computedReturnString'
+    },
+    computedReturnNumber() {
+      return 10
+    },
+    computedReturnObject() {
+      return {
+        inside: 'inside'
+      }
+    },
+    computedReturnArray() {
+      return [1, 2, 3, 4, 5]
+    },
+    computedReturnBoolean() {
+      return true
+    },
+    computedReturnFunction() {
+      const fn = () => alert('computedReturnFunction')
+      return fn
+    },
+
+    computedReturnMethodsReturnString() {
+      return this.methodsReturnString
+    },
+    computedReturnMethodsReturnNumber() {
+      return this.methodsReturnNumber
+    },
+    computedReturnMethodsReturnObject() {
+      return this.methodsReturnObject
+    },
+    computedReturnMethodsReturnArray() {
+      return this.methodsReturnArray
+    },
+    computedReturnMethodsReturnBoolean() {
+      return this.methodsReturnBoolean
+    },
+    computedReturnMethodsReturnFunction() {
+      return this.methodsReturnFunction
+    }
+  },
+  methods: {
+    methodsReturnString() {
+      return 'methodsReturnString'
+    },
+    methodsReturnNumber() {
+      return 'methodsReturnNumber'
+    },
+    methodsReturnObject() {
+      return {
+        inside: 'inside'
+      }
+    },
+    methodsReturnArray() {
+      return [1, 2, 3, 4, 5]
+    },
+    methodsReturnBoolean() {
+      return true
+    },
+    methodsReturnFunction() {
+      const fn = () => alert('methodsReturnFunction')
+      return fn
+    },
+
+    fn() {
+      /* Reference data */
+      /* ✓ GOOD */
+      this.computedReturnDataString
+      this.computedReturnDataNumber
+      this.computedReturnDataObject
+      this.computedReturnDataArray
+      this.computedReturnDataBoolean
+      this.computedReturnDataFunction
+      this.computedReturnDataFunction()
+      /* ✗ BAD */
+      this.computedReturnDataString()
+      this.computedReturnDataNumber()
+      this.computedReturnDataObject()
+      this.computedReturnDataArray()
+      this.computedReturnDataBoolean()
+
+      /* Reference props */
+      /* ✓ GOOD */
+      this.computedReturnPropsString
+      this.computedReturnPropsNumber
+      this.computedReturnPropsObject
+      this.computedReturnPropsArray
+      this.computedReturnPropsBoolean
+      this.computedReturnPropsFunction
+      this.computedReturnPropsFunction()
+      /* ✗ BAD */
+      this.computedReturnPropsString()
+      this.computedReturnPropsNumber()
+      this.computedReturnPropsObject()
+      this.computedReturnPropsArray()
+      this.computedReturnPropsBoolean()
+
+      /* ✓ GOOD */
+      this.computedReturnObjectPropsString
+      this.computedReturnObjectPropsNumber
+      this.computedReturnObjectPropsObject
+      this.computedReturnObjectPropsArray
+      this.computedReturnObjectPropsBoolean
+      this.computedReturnObjectPropsFunction
+      this.computedReturnObjectPropsFunction()
+      /* ✗ BAD */
+      this.computedReturnObjectPropsString()
+      this.computedReturnObjectPropsNumber()
+      this.computedReturnObjectPropsObject()
+      this.computedReturnObjectPropsArray()
+      this.computedReturnObjectPropsBoolean()
+
+      /* Reference computed */
+      /* ✓ GOOD */
+      this.computedReturnString
+      this.computedReturnNumber
+      this.computedReturnObject
+      this.computedReturnArray
+      this.computedReturnBoolean
+      this.computedReturnFunction
+      this.computedReturnFunction()
+      /* ✗ BAD */
+      this.computedReturnString()
+      this.computedReturnNumber()
+      this.computedReturnObject()
+      this.computedReturnArray()
+      this.computedReturnBoolean()
+
+      /* Reference methods */
+      /* ✓ GOOD */
+      this.computedReturnMethodsReturnString
+      this.computedReturnMethodsReturnNumber
+      this.computedReturnMethodsReturnObject
+      this.computedReturnMethodsReturnArray
+      this.computedReturnMethodsReturnBoolean
+      this.computedReturnMethodsReturnFunction
+      this.computedReturnMethodsReturnFunction()
+      /* ✗ BAD */
+      this.computedReturnMethodsReturnString()
+      this.computedReturnMethodsReturnNumber()
+      this.computedReturnMethodsReturnObject()
+      this.computedReturnMethodsReturnArray()
+      this.computedReturnMethodsReturnBoolean()
+    }
+  }
+}
+</script>
+```
+
+</eslint-code-block>
+
+This rule can't check if props is used as array:
+
+<eslint-code-block :rules="{'vue/no-use-computed-property-like-method': ['error']}">
+
+```vue
+<script>
+export default {
+  props: [
+    'propsString',
+    'propsNumber',
+    'propsObject',
+    'propsArray',
+    'propsBoolean',
+    'propsFunction'
+  ],
+  computed: {
+    computedReturnPropsString() {
+      return this.propsString
+    },
+    computedReturnPropsNumber() {
+      return this.propsNumber
+    },
+    computedReturnPropsObject() {
+      return this.propsObject
+    },
+    computedReturnPropsArray() {
+      return this.propsArray
+    },
+    computedReturnPropsBoolean() {
+      return this.propsBoolean
+    },
+    computedReturnPropsFunction() {
+      return this.propsFunction
+    }
+  },
+  methods: {
+    fn() {
+      /* Reference props */
+      /* ✓ GOOD */
+      this.computedReturnPropsString
+      this.computedReturnPropsString()
+      this.computedReturnPropsNumber
+      this.computedReturnPropsNumber()
+      this.computedReturnPropsObject
+      this.computedReturnPropsObject()
+      this.computedReturnPropsArray
+      this.computedReturnPropsArray()
+      this.computedReturnPropsBoolean
+      this.computedReturnPropsBoolean()
+      this.computedReturnPropsFunction
+      this.computedReturnPropsFunction()
+      /* ✗ BAD */
+      /* Nope. everything is GOOD!! */
+    }
+  }
+}
+</script>
+```
+
+</eslint-code-block>
+
+## :wrench: Options
+
+Nothing.
+
+## :mag: Implementation
+
+- [Rule source](https://github.com/vuejs/eslint-plugin-vue/blob/master/lib/rules/no-use-computed-property-like-method.js)
+- [Test source](https://github.com/vuejs/eslint-plugin-vue/blob/master/tests/lib/rules/no-use-computed-property-like-method.js)

docs/rules/object-curly-newline.md

@@ -2,12 +2,12 @@
 pageClass: rule-details
 sidebarDepth: 0
 title: vue/object-curly-newline
-description: enforce consistent line breaks after opening and before closing braces
+description: enforce consistent line breaks inside braces
 since: v7.0.0
 ---
 # vue/object-curly-newline
 
-> enforce consistent line breaks after opening and before closing braces
+> enforce consistent line breaks inside braces
 
 - :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
 

lib/index.js

@@ -122,6 +122,7 @@ module.exports = {
     'no-unused-properties': require('./rules/no-unused-properties'),
     'no-unused-refs': require('./rules/no-unused-refs'),
     'no-unused-vars': require('./rules/no-unused-vars'),
+    'no-use-computed-property-like-method': require('./rules/no-use-computed-property-like-method'),
     'no-use-v-if-with-v-for': require('./rules/no-use-v-if-with-v-for'),
     'no-useless-concat': require('./rules/no-useless-concat'),
     'no-useless-mustaches': require('./rules/no-useless-mustaches'),