[coverage] Block coverage with support for IfStatements

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 9775 matching lines @@
     return ToApiHandle<String>(name);
   } else {
     // We do not expect this to fail. Change this if it does.
     i::Handle<i::String> cons = isolate->factory()->NewConsString(
         isolate->factory()->InternalizeUtf8String(entry->name_prefix()),
         name).ToHandleChecked();
     return ToApiHandle<String>(cons);
   }
 }
 
+int debug::Coverage::BlockData::StartOffset() const { return block_->start; }
+int debug::Coverage::BlockData::EndOffset() const { return block_->end; }
+uint32_t debug::Coverage::BlockData::Count() const { return block_->count; }
+
 int debug::Coverage::FunctionData::StartOffset() const {
   return function_->start;
 }
 int debug::Coverage::FunctionData::EndOffset() const { return function_->end; }
 uint32_t debug::Coverage::FunctionData::Count() const {
   return function_->count;
 }
 
 MaybeLocal<String> debug::Coverage::FunctionData::Name() const {
   return ToApiHandle<String>(function_->name);
 }
 
+size_t debug::Coverage::FunctionData::BlockCount() const {
+  return function_->blocks.size();
+}
+
+debug::Coverage::BlockData debug::Coverage::FunctionData::GetBlockData(
+    size_t i) const {
+  return BlockData(&function_->blocks.at(i));
+}
+
 Local<debug::Script> debug::Coverage::ScriptData::GetScript() const {
   return ToApiHandle<debug::Script>(script_->script);
 }
 
 size_t debug::Coverage::ScriptData::FunctionCount() const {
   return script_->functions.size();
 }
 
 debug::Coverage::FunctionData debug::Coverage::ScriptData::GetFunctionData(
     size_t i) const {
@@ skipping 683 matching lines @@
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 }  // namespace internal
 }  // namespace v8