[inspector] implemented blackboxing inside v8

src/debug/debug-interface.h

 // Copyright 2016 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.
 
 #ifndef V8_DEBUG_DEBUG_INTERFACE_H_
 #define V8_DEBUG_DEBUG_INTERFACE_H_
 
 #include <functional>
 
 #include "include/v8-debug.h"
@@ skipping 68 matching lines @@
  * Defines if VM will pause on exceptions or not.
  * If BreakOnAnyExceptions is set then VM will pause on caught and uncaught
  * exception, if BreakOnUncaughtException is set then VM will pause only on
  * uncaught exception, otherwise VM won't stop on any exception.
  */
 void ChangeBreakOnException(Isolate* isolate, ExceptionBreakState state);
 
 enum StepAction {
   StepOut = 0,   // Step out of the current function.
   StepNext = 1,  // Step to the next statement in the current function.
-  StepIn = 2,    // Step into new functions invoked or the next statement
+  StepIn = 2     // Step into new functions invoked or the next statement
                  // in the current function.
-  StepFrame = 3  // Step into a new frame or return to previous frame.
 };
 
 void PrepareStep(Isolate* isolate, StepAction action);
-void ClearStepping(Isolate* isolate);
+
+bool HasNonBlackboxedFrameOnStack(Isolate* isolate);
 
 /**
  * Out-of-memory callback function.
  * The function is invoked when the heap size is close to the hard limit.
  *
  * \param data the parameter provided during callback installation.
  */
 typedef void (*OutOfMemoryCallback)(void* data);
 void SetOutOfMemoryCallback(Isolate* isolate, OutOfMemoryCallback callback,
                             void* data);
@@ skipping 34 matching lines @@
   int NumImportedFunctions() const;
 
   debug::WasmDisassembly DisassembleFunction(int function_index) const;
 };
 
 void GetLoadedScripts(Isolate* isolate, PersistentValueVector<Script>& scripts);
 
 MaybeLocal<UnboundScript> CompileInspectorScript(Isolate* isolate,
                                                  Local<String> source);
 
-class DebugEventListener {
+class DebugDelegate {
  public:
-  virtual ~DebugEventListener() {}
+  virtual ~DebugDelegate() {}
   virtual void PromiseEventOccurred(debug::PromiseDebugActionType type,
                                     int id) {}
   virtual void ScriptCompiled(v8::Local<Script> script,
                               bool has_compile_error) {}
   virtual void BreakProgramRequested(v8::Local<v8::Context> paused_context,
                                      v8::Local<v8::Object> exec_state,
                                      v8::Local<v8::Value> break_points_hit) {}
   virtual void ExceptionThrown(v8::Local<v8::Context> paused_context,
                                v8::Local<v8::Object> exec_state,
                                v8::Local<v8::Value> exception,
                                bool is_promise_rejection, bool is_uncaught) {}
+  virtual bool IsFunctionBlackboxed(v8::Local<debug::Script> script,
+                                    const debug::Location& start,
+                                    const debug::Location& end) {
+    return false;
+  }
 };
 
-void SetDebugEventListener(Isolate* isolate, DebugEventListener* listener);
+void SetDebugDelegate(Isolate* isolate, DebugDelegate* listener);
+
+void ResetBlackboxedStateCache(Isolate* isolate,
+                               v8::Local<debug::Script> script);
 
 }  // namespace debug
 }  // namespace v8
 
 #endif  // V8_DEBUG_DEBUG_INTERFACE_H_