More OStreamsUse OStreams more often.

src/hydrogen-types.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/hydrogen-types.h"
 
 #include "src/types-inl.h"
 
 
 namespace v8 {
@@ skipping 34 matching lines @@
   if (value->IsString()) return HType::String();
   if (value->IsBoolean()) return HType::Boolean();
   if (value->IsUndefined()) return HType::Undefined();
   if (value->IsJSArray()) return HType::JSArray();
   if (value->IsJSObject()) return HType::JSObject();
   ASSERT(value->IsHeapObject());
   return HType::HeapObject();
 }
 
 
-const char* HType::ToString() const {
+OStream& operator<<(OStream& os, const HType& t) {
   // Note: The c1visualizer syntax for locals allows only a sequence of the
   // following characters: A-Za-z0-9_-|:
-  switch (kind_) {
-    #define DEFINE_CASE(Name, mask) case k##Name: return #Name;
+  switch (t.kind_) {
+#define DEFINE_CASE(Name, mask) \
+  case HType::k##Name:          \
+    return os << #Name;
     HTYPE_LIST(DEFINE_CASE)
-    #undef DEFINE_CASE
+#undef DEFINE_CASE
   }
   UNREACHABLE();
-  return NULL;
+  return os;
 }
 
 } }  // namespace v8::internal