Apply consistent-return lint rule

lib/sandbox.js

@@ -34,6 +34,8 @@ const COMMIT = Symbol();
 // Used to execute extensions and restart
 const EXT = Symbol();
 
+const UNDEFINED = undefined;
+
 const context = vm.createContext();
 
 let state;
@@ -117,14 +119,14 @@ class ParameterWrapper {
             );
           }
 
-          if (!unpacked.length) return undefined;
+          if (!unpacked.length) return UNDEFINED;
 
           let attr = state.sessionContext.deviceData.attributes.get(
             unpacked[0],
             state.revision
           )[attrName];
 
-          if (!attr) return undefined;
+          if (!attr) return UNDEFINED;
 
           return attr[1];
         }
@@ -144,7 +146,7 @@ class ParameterWrapper {
           );
         }
 
-        if (!unpacked.length) return undefined;
+        if (!unpacked.length) return UNDEFINED;
 
         return unpacked[0].join(".");
       }
@@ -163,7 +165,7 @@ class ParameterWrapper {
           );
         }
 
-        if (!unpacked.length) return undefined;
+        if (!unpacked.length) return UNDEFINED;
 
         return unpacked.length;
       }
@@ -349,7 +351,7 @@ function run(
   } catch (err) {
     if (err === COMMIT) status = 1;
     else if (err === EXT) status = 2;
-    else return callback(null, errorToFault(err));
+    else return void callback(null, errorToFault(err));
   }
 
   let _state = state;
@@ -370,13 +372,13 @@ function run(
       (err, fault) => {
         if (err || fault) {
           if (counter & 1) callback(err, fault);
-          return (counter = 0);
+          return void (counter = 0);
         }
         if ((counter -= 2) === 1) {
           if (status === 2) {
-            return run.apply(null, args);
+            return void run.apply(null, args);
           } else {
-            return callback(
+            return void callback(
               null,
               null,
               _state.clear,
@@ -392,9 +394,9 @@ function run(
 
   if ((counter -= 2) === 1) {
     if (status === 2) {
-      return run.apply(null, args);
+      run.apply(null, args);
     } else {
-      return callback(
+      callback(
         null,
         null,
         _state.clear,