feat: remove mixed from weak types (issue #361)

Author: gajus

src/rules/noWeakTypes.js

@@ -10,9 +10,6 @@ const schema = [
       Function: {
         type: 'boolean'
       },
-      mixed: {
-        type: 'boolean'
-      },
       Object: {
         type: 'boolean'
       }
@@ -43,7 +40,6 @@ const genericTypeEvaluator = (context, {checkFunction, checkObject}) => {
 
 const create = (context) => {
   const checkAny = _.get(context, 'options[0].any', true) === true;
-  const checkMixed = _.get(context, 'options[0].mixed', true) === true;
   const checkFunction = _.get(context, 'options[0].Function', true) === true;
   const checkObject = _.get(context, 'options[0].Object', true) === true;
 
@@ -52,9 +48,6 @@ const create = (context) => {
   if (checkAny) {
     checks.AnyTypeAnnotation = reportWeakType(context, 'any');
   }
-  if (checkMixed) {
-    checks.MixedTypeAnnotation = reportWeakType(context, 'mixed');
-  }
 
   if (checkFunction || checkObject) {
     checks.GenericTypeAnnotation = genericTypeEvaluator(context, {

tests/rules/assertions/noWeakTypes.js

@@ -18,24 +18,6 @@ export default {
         message: 'Unexpected use of weak type "any"'
       }]
     },
-    {
-      code: 'function foo(thing): mixed {}',
-      errors: [{
-        message: 'Unexpected use of weak type "mixed"'
-      }]
-    },
-    {
-      code: 'function foo(thing): Promise<mixed> {}',
-      errors: [{
-        message: 'Unexpected use of weak type "mixed"'
-      }]
-    },
-    {
-      code: 'function foo(thing): Promise<Promise<mixed>> {}',
-      errors: [{
-        message: 'Unexpected use of weak type "mixed"'
-      }]
-    },
     {
       code: 'function foo(thing): Object {}',
       errors: [{
@@ -209,14 +191,6 @@ export default {
         any: false,
         Object: false
       }]
-    },
-    {
-      code: 'type X = mixed; type Y = Function; type Z = Object',
-      errors: [{message: 'Unexpected use of weak type "mixed"'}],
-      options: [{
-        Function: false,
-        Object: false
-      }]
     }
   ],
   misconfigured: [
@@ -241,9 +215,6 @@ export default {
               Function: {
                 type: 'boolean'
               },
-              mixed: {
-                type: 'boolean'
-              },
               Object: {
                 type: 'boolean'
               }
@@ -326,13 +297,6 @@ export default {
         Object: false
       }]
     },
-    {
-      code: 'type X = mixed; type Y = Object',
-      options: [{
-        mixed: false,
-        Object: false
-      }]
-    },
     {
       code: 'type X = Function',
       options: [{Function: false}]