fix: disallow process.browser in no-env-in-hooks (#127)

Author: FloEdelmann

Diff for: docs/rules/no-env-in-hooks.md

@@ -1,12 +1,12 @@
 # nuxt/no-env-in-hooks
 
-> Disallow `process.server` and `process.client` in the following lifecycle hooks: `beforeMount`, `mounted`, `beforeUpdate`, `updated`, `activated`, `deactivated`, `beforeDestroy` and `destroyed`.
+> Disallow `process.server`, `process.client` and `process.browser` in the following lifecycle hooks: `beforeMount`, `mounted`, `beforeUpdate`, `updated`, `activated`, `deactivated`, `beforeDestroy` and `destroyed`.
 
 - :gear: This rule is included in `"plugin:nuxt/base"`.
 
 ## Rule Details
 
-This rule is for preventing using `process.server/process.client` in client only Vue lifecycle hooks since they're only executed in client side.
+This rule is for preventing using `process.server`/`process.client`/`process.browser` in client only Vue lifecycle hooks since they're only executed in client side.
 
 Examples of **incorrect** code for this rule:
 
@@ -22,6 +22,11 @@ export default {
     if (process.client) {
       const foo = 'bar'
     }
+  },
+  beforeDestroy() {
+    if (process.browser) {
+      const foo = 'bar'
+    }
   }
 }
 
@@ -38,6 +43,9 @@ export default {
   },
   beforeMount() {
     const foo = 'bar'
+  },
+  beforeDestroy() {
+    const foo = 'bar'
   }
 }
 

Diff for: lib/rules/__tests__/no-env-in-hooks.test.js

@@ -1,5 +1,5 @@
 /**
- * @fileoverview disallow `process.server/process.client` in `Vue Lifecycle Hooks`
+ * @fileoverview disallow `process.server`/`process.client`/`process.browser` in `Vue Lifecycle Hooks`
  * @author Xin Du <[email protected]>
  */
 'use strict'
@@ -34,6 +34,9 @@ ruleTester.run('no-env-in-hooks', rule, {
           },
           beforeMount() {
             const foo = 'bar'
+          },
+          beforeDestroy() {
+            const foo = 'bar'
           }
         }
       `,
@@ -55,6 +58,11 @@ ruleTester.run('no-env-in-hooks', rule, {
             if(process.client) {
               const foo = 'bar'
             }
+          },
+          beforeDestroy() {
+            if(process.browser) {
+              const foo = 'bar'
+            }
           }
         }
       `,
@@ -64,6 +72,9 @@ ruleTester.run('no-env-in-hooks', rule, {
       }, {
         message: 'Unexpected process.client in beforeMount.',
         type: 'MemberExpression'
+      }, {
+        message: 'Unexpected process.browser in beforeDestroy.',
+        type: 'MemberExpression'
       }],
       parserOptions
     },
@@ -80,6 +91,11 @@ ruleTester.run('no-env-in-hooks', rule, {
             if(process['server']) {
               const foo = 'bar'
             }
+          },
+          beforeDestroy() {
+            if(process['browser']) {
+              const foo = 'bar'
+            }
           }
         }
       `,
@@ -89,6 +105,9 @@ ruleTester.run('no-env-in-hooks', rule, {
       }, {
         message: 'Unexpected process.server in beforeMount.',
         type: 'MemberExpression'
+      }, {
+        message: 'Unexpected process.browser in beforeDestroy.',
+        type: 'MemberExpression'
       }],
       parserOptions
     }

Diff for: lib/rules/no-env-in-hooks.js

@@ -1,5 +1,5 @@
 /**
- * @fileoverview disallow process.server and process.client in the following lifecycle hooks: beforeMount, mounted, beforeUpdate, updated, activated, deactivated, beforeDestroy and destroyed
+ * @fileoverview disallow process.server, process.client and process.browser in the following lifecycle hooks: beforeMount, mounted, beforeUpdate, updated, activated, deactivated, beforeDestroy and destroyed
  * @author Xin Du <[email protected]>
  */
 'use strict'
@@ -27,7 +27,7 @@ module.exports = {
     const forbiddenNodes = []
     const options = context.options[0] || {}
 
-    const ENV = ['server', 'client']
+    const ENV = ['server', 'client', 'browser']
     const HOOKS = new Set(['beforeMount', 'mounted', 'beforeUpdate', 'updated', 'activated', 'deactivated', 'beforeDestroy', 'destroyed'].concat(options.methods || []))
 
     // ----------------------------------------------------------------------