Fix false negatives in TemplateLiteral for vue/prop-name-casing rule. (#1208)

Author: ota-meshi

lib/rules/prop-name-casing.js

@@ -24,20 +24,8 @@ function create(context) {
 
   return utils.executeOnVue(context, (obj) => {
     for (const item of utils.getComponentProps(obj)) {
-      if (item.propName == null) {
-        continue
-      }
-      const propName =
-        item.key.type === 'Literal'
-          ? item.key.value
-          : item.key.type === 'TemplateLiteral'
-          ? null
-          : item.propName
-      // TODO We should use propName.
-      // const propName = item.propName
-
-      if (typeof propName !== 'string') {
-        // (boolean | null | number | RegExp) Literal
+      const propName = item.propName
+      if (propName == null) {
         continue
       }
       if (!checker(propName)) {

tests/lib/rules/prop-name-casing.js

@@ -131,18 +131,6 @@ ruleTester.run('prop-name-casing', rule, {
       `,
       parserOptions
     },
-    {
-      // TemplateLiteral computed property does not warn
-      filename: 'test.vue',
-      code: `
-        export default {
-          props: {
-            [\`greeting-text\`]: String
-          }
-        }
-      `,
-      parserOptions
-    },
     {
       // TemplateLiteral computed property does not warn
       filename: 'test.vue',
@@ -275,18 +263,6 @@ ruleTester.run('prop-name-casing', rule, {
       `,
       parserOptions
     },
-    {
-      // RegExp Literal computed property name
-      filename: 'test.vue',
-      code: `
-        export default {
-          props: {
-            [/greeting-text/]: String
-          }
-        }
-      `,
-      parserOptions
-    },
     {
       // Japanese characters
       filename: 'test.vue',
@@ -578,6 +554,32 @@ ruleTester.run('prop-name-casing', rule, {
       options: ['snake_case'],
       parserOptions,
       errors: ['Prop "_itemName" is not in snake_case.']
+    },
+    {
+      // TemplateLiteral computed property
+      filename: 'test.vue',
+      code: `
+        export default {
+          props: {
+            [\`greeting-text\`]: String
+          }
+        }
+      `,
+      parserOptions,
+      errors: ['Prop "greeting-text" is not in camelCase.']
+    },
+    {
+      // RegExp Literal computed property name
+      filename: 'test.vue',
+      code: `
+        export default {
+          props: {
+            [/greeting-text/]: String
+          }
+        }
+      `,
+      parserOptions,
+      errors: ['Prop "/greeting-text/" is not in camelCase.']
     }
   ]
 })