fix: continue SwitchStatement can not continue parent loop

src/evaluate.ts

@@ -712,7 +712,9 @@ const visitors: EvaluateMap = {
         if (Signal.isBreak(result)) {
           break;
         } else if (Signal.isContinue(result)) {
-          continue;
+          // SwitchStatement can not use continue keyword
+          // but it can continue parent loop, like for, for-in, for-of, while
+          return result;
         } else if (Signal.isReturn(result)) {
           return result;
         }

test/ecma5/switch/SwitchStatement.test.ts

@@ -54,3 +54,34 @@ module.exports = t;
   t.deepEqual(func("axetroy"), "hi axetroy");
   t.deepEqual(func("aa"), "hello world");
 });
+
+test("SwitchStatement with continue", t => {
+  const sandbox: any = vm.createContext({});
+
+  const func: any = vm.runInContext(
+    `
+function t(type) {
+  const result = [];
+  let i = 0;
+  while (i < 5) {
+    i++;
+    switch (type + "") {
+      case "0":
+        continue;
+    }
+    result.push(i);
+  }
+  return result;
+}
+
+module.exports = t;
+  `,
+    sandbox
+  );
+
+  // t.deepEqual(func(1), [1, 2, 3, 4, 5]);
+  // t.deepEqual(func(2), [1, 2, 3, 4, 5]);
+
+  // the will loop will be continue
+  t.deepEqual(func(0), []);
+});