First simple implementation of for-of in TurboFan.

test/cctest/compiler/test-run-jsbranches.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "test/cctest/compiler/function-tester.h"
 
 using namespace v8::internal;
 using namespace v8::internal::compiler;
@@ skipping 150 matching lines @@
       "})";
   FunctionTester T(src);
 
   T.CheckCall(T.Val("-A-B-"), T.NewObject("({x:1})"), T.false_value());
   T.CheckCall(T.Val("-A-B-A-B-"), T.NewObject("({x:1,y:2})"), T.false_value());
   T.CheckCall(T.Val("-A-"), T.NewObject("({x:1})"), T.true_value());
   T.CheckCall(T.Val("-A-A-"), T.NewObject("({x:1,y:2})"), T.true_value());
 }
 
 
+TEST(ForOfContinueStatement) {
+  const char* src =
+      "(function(a,b) {"
+      "  var r = '-';"
+      "  for (var x of a) {"
+      "    r += x + '-';"
+      "    if (b) continue;"
+      "    r += 'X-';"
+      "  }"
+      "  return r;"
+      "})";
+  FunctionTester T(src);
+
+  CompileRun(
+      "function wrap(v) {"
+      "  var iterable = {};"
+      "  function next() { return { done:!v.length, value:v.shift() }; };"
+      "  iterable[Symbol.iterator] = function() { return { next:next }; };"
+      "  return iterable;"
+      "}");
+
+  T.CheckCall(T.Val("-"), T.NewObject("wrap([])"), T.true_value());
+  T.CheckCall(T.Val("-1-2-"), T.NewObject("wrap([1,2])"), T.true_value());
+  T.CheckCall(T.Val("-1-X-2-X-"), T.NewObject("wrap([1,2])"), T.false_value());
+}
+
+
 TEST(SwitchStatement) {
   const char* src =
       "(function(a,b) {"
       "  var r = '-';"
       "  switch (a) {"
       "    case 'x'    : r += 'X-';"
       "    case b + 'b': r += 'B-';"
       "    default     : r += 'D-';"
       "    case 'y'    : r += 'Y-';"
       "  }"
@@ skipping 167 matching lines @@
   T.CheckCall(T.Val(-8445), T.Val(8661), T.Val(-8445));
 }
 
 
 TEST(EmptyFor) {
   FunctionTester T("(function(a,b) { if (a) for(;;) ; return b; })");
 
   T.CheckCall(T.Val(8126.1), T.Val(0.0), T.Val(8126.1));
   T.CheckCall(T.Val(1123.1), T.Val(0.0), T.Val(1123.1));
 }