text: // Copyright 2018 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_OBJECTS_STACK_FRAME_INFO_H_
  #define V8_OBJECTS_STACK_FRAME_INFO_H_
  
  #include "src/objects/struct.h"
  
  // Has to be the last include (doesn't have include guards):
  #include "src/objects/object-macros.h"
  
  namespace v8 {
  namespace internal {
  
  class FrameArray;
  
  class StackFrameInfo : public Struct {
   public:
    NEVER_READ_ONLY_SPACE
    DECL_INT_ACCESSORS(line_number)
    DECL_INT_ACCESSORS(column_number)
    DECL_INT_ACCESSORS(script_id)
    DECL_INT_ACCESSORS(promise_all_index)
    DECL_ACCESSORS(script_name, Object)
    DECL_ACCESSORS(script_name_or_source_url, Object)
    DECL_ACCESSORS(function_name, Object)
    DECL_ACCESSORS(wasm_module_name, Object)
    DECL_BOOLEAN_ACCESSORS(is_eval)
    DECL_BOOLEAN_ACCESSORS(is_constructor)
    DECL_BOOLEAN_ACCESSORS(is_wasm)
    DECL_BOOLEAN_ACCESSORS(is_user_java_script)
    DECL_BOOLEAN_ACCESSORS(is_toplevel)
    DECL_BOOLEAN_ACCESSORS(is_async)
    DECL_BOOLEAN_ACCESSORS(is_promise_all)
    DECL_INT_ACCESSORS(flag)
  
    DECL_CAST(StackFrameInfo)
  
    // Dispatched behavior.
    DECL_PRINTER(StackFrameInfo)
    DECL_VERIFIER(StackFrameInfo)
  
    DEFINE_FIELD_OFFSET_CONSTANTS(Struct::kHeaderSize,
                                  TORQUE_GENERATED_STACK_FRAME_INFO_FIELDS)
  
   private:
    // Bit position in the flag, from least significant bit position.
    static const int kIsEvalBit = 0;
    static const int kIsConstructorBit = 1;
    static const int kIsWasmBit = 2;
    static const int kIsUserJavaScriptBit = 3;
    static const int kIsToplevelBit = 4;
    static const int kIsAsyncBit = 5;
    static const int kIsPromiseAllBit = 6;
  
    OBJECT_CONSTRUCTORS(StackFrameInfo, Struct);
  };
  
  // This class is used to lazily initialize a StackFrameInfo object from
  // a FrameArray plus an index.
  // The first time any of the Get* or Is* methods is called, a
  // StackFrameInfo object is allocated and all necessary information
  // retrieved.
  class StackTraceFrame : public Struct {
   public:
    NEVER_READ_ONLY_SPACE
    DECL_ACCESSORS(frame_array, Object)
    DECL_INT_ACCESSORS(frame_index)
    DECL_ACCESSORS(frame_info, Object)
    DECL_INT_ACCESSORS(id)
  
    DECL_CAST(StackTraceFrame)
  
    // Dispatched behavior.
    DECL_PRINTER(StackTraceFrame)
    DECL_VERIFIER(StackTraceFrame)
  
    DEFINE_FIELD_OFFSET_CONSTANTS(Struct::kHeaderSize,
                                  TORQUE_GENERATED_STACK_TRACE_FRAME_FIELDS)
  
    static int GetLineNumber(Handle<StackTraceFrame> frame);
    static int GetColumnNumber(Handle<StackTraceFrame> frame);
    static int GetScriptId(Handle<StackTraceFrame> frame);
    static int GetPromiseAllIndex(Handle<StackTraceFrame> frame);
  
    static Handle<Object> GetFileName(Handle<StackTraceFrame> frame);
    static Handle<Object> GetScriptNameOrSourceUrl(Handle<StackTraceFrame> frame);
    static Handle<Object> GetFunctionName(Handle<StackTraceFrame> frame);
    static Handle<Object> GetWasmModuleName(Handle<StackTraceFrame> frame);
  
    static bool IsEval(Handle<StackTraceFrame> frame);
    static bool IsConstructor(Handle<StackTraceFrame> frame);
    static bool IsWasm(Handle<StackTraceFrame> frame);
    static bool IsUserJavaScript(Handle<StackTraceFrame> frame);
    static bool IsToplevel(Handle<StackTraceFrame> frame);
    static bool IsAsync(Handle<StackTraceFrame> frame);
    static bool IsPromiseAll(Handle<StackTraceFrame> frame);
  
   private:
    OBJECT_CONSTRUCTORS(StackTraceFrame, Struct);
  
    static Handle<StackFrameInfo> GetFrameInfo(Handle<StackTraceFrame> frame);
    static void InitializeFrameInfo(Handle<StackTraceFrame> frame);
  };
  
  }  // namespace internal
  }  // namespace v8
  
  #include "src/objects/object-macros-undef.h"
  
  #endif  // V8_OBJECTS_STACK_FRAME_INFO_H_
  