CpuProfiler: public API for deopt info in cpu profiler.

src/api.cc

 // Copyright 2012 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/api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
 #endif  // V8_USE_ADDRESS_SANITIZER
@@ skipping 7494 matching lines @@
 }
 
 
 const CpuProfileNode* CpuProfileNode::GetChild(int index) const {
   const i::ProfileNode* child =
       reinterpret_cast<const i::ProfileNode*>(this)->children()->at(index);
   return reinterpret_cast<const CpuProfileNode*>(child);
 }
 
 
+unsigned CpuProfileNode::GetDeoptCount() const {
+  const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this);
+  return static_cast<unsigned>(node->deopt_infos().size());
+}
+
+
+const CpuProfileDeoptInfo* CpuProfileNode::GetDeoptInfo(unsigned index) const {
+  const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this);
+  DCHECK_LT(index, node->deopt_infos().size());

[yurys, 2015/03/30 13:20:18]

Drop this as List already performs such checks.

+  if (index >= node->deopt_infos().size()) return NULL;
+  const i::DeoptInfo& deopt_info = node->deopt_infos().at(index);
+  return reinterpret_cast<const CpuProfileDeoptInfo*>(&deopt_info);
+}
+
+
+const char* CpuProfileDeoptInfo::GetDeoptReason() const {
+  const i::DeoptInfo* deopt_info = reinterpret_cast<const i::DeoptInfo*>(this);
+  return deopt_info->deopt_reason;
+}
+
+
+unsigned CpuProfileDeoptInfo::GetFramesCount() const {
+  const i::DeoptInfo* deopt_info = reinterpret_cast<const i::DeoptInfo*>(this);
+  return static_cast<unsigned>(deopt_info->stack.size());
+}
+
+
+bool CpuProfileDeoptInfo::GetCallFrames(Frame* frames,

[yurys, 2015/03/30 13:20:18]

Return number of written frames?

+                                        unsigned int length) const {
+  if (frames == NULL || length == 0) return false;
+  const i::DeoptInfo* deopt_info = reinterpret_cast<const i::DeoptInfo*>(this);
+  for (size_t i = 0; i < deopt_info->stack.size() && i < length; ++i) {
+    frames[i] = deopt_info->stack[i];
+  }
+  return true;
+}
+
+
 void CpuProfile::Delete() {
   i::Isolate* isolate = i::Isolate::Current();
   i::CpuProfiler* profiler = isolate->cpu_profiler();
   DCHECK(profiler != NULL);
   profiler->DeleteProfile(reinterpret_cast<i::CpuProfile*>(this));
 }
 
 
 Handle<String> CpuProfile::GetTitle() const {
   i::Isolate* isolate = i::Isolate::Current();
@@ skipping 529 matching lines @@
   Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate());
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 } }  // namespace v8::internal