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      1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "cc/debug/traced_value.h"
      6 
      7 #include "base/json/json_writer.h"
      8 #include "base/strings/stringprintf.h"
      9 #include "base/values.h"
     10 
     11 namespace cc {
     12 
     13 scoped_ptr<base::Value> TracedValue::CreateIDRef(const void* id) {
     14   scoped_ptr<base::DictionaryValue> res(new base::DictionaryValue());
     15   res->SetString("id_ref", base::StringPrintf("%p", id));
     16   return res.PassAs<base::Value>();
     17 }
     18 
     19 void TracedValue::MakeDictIntoImplicitSnapshot(
     20     base::DictionaryValue* dict, const char* object_name, const void* id) {
     21   dict->SetString("id", base::StringPrintf("%s/%p", object_name, id));
     22 }
     23 
     24 void TracedValue::MakeDictIntoImplicitSnapshotWithCategory(
     25     const char* category,
     26     base::DictionaryValue* dict,
     27     const char* object_name,
     28     const void* id) {
     29   dict->SetString("cat", category);
     30   MakeDictIntoImplicitSnapshot(dict, object_name, id);
     31 }
     32 
     33 void TracedValue::MakeDictIntoImplicitSnapshotWithCategory(
     34     const char* category,
     35     base::DictionaryValue* dict,
     36     const char* object_base_type_name,
     37     const char* object_name,
     38     const void* id) {
     39   dict->SetString("cat", category);
     40   dict->SetString("base_type", object_base_type_name);
     41   MakeDictIntoImplicitSnapshot(dict, object_name, id);
     42 }
     43 
     44 scoped_refptr<base::debug::ConvertableToTraceFormat> TracedValue::FromValue(
     45     base::Value* value) {
     46   return scoped_refptr<base::debug::ConvertableToTraceFormat>(
     47       new TracedValue(value));
     48 }
     49 
     50 TracedValue::TracedValue(base::Value* value)
     51   : value_(value) {
     52 }
     53 
     54 TracedValue::~TracedValue() {
     55 }
     56 
     57 void TracedValue::AppendAsTraceFormat(std::string* out) const {
     58   std::string tmp;
     59   base::JSONWriter::Write(value_.get(), &tmp);
     60   *out += tmp;
     61 }
     62 
     63 }  // namespace cc
     64