reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
//===-- CPPLanguageRuntime.h
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef liblldb_CPPLanguageRuntime_h_
#define liblldb_CPPLanguageRuntime_h_

#include <vector>
#include "lldb/Core/PluginInterface.h"
#include "lldb/Target/LanguageRuntime.h"
#include "lldb/lldb-private.h"

namespace lldb_private {

class CPPLanguageRuntime : public LanguageRuntime {
public:
  enum class LibCppStdFunctionCallableCase {
    Lambda = 0,
    CallableObject,
    FreeOrMemberFunction,
    Invalid
  };

  struct LibCppStdFunctionCallableInfo {
    Symbol callable_symbol;
    Address callable_address;
    LineEntry callable_line_entry;
    lldb::addr_t member__f_pointer_value = 0u;
    LibCppStdFunctionCallableCase callable_case =
        LibCppStdFunctionCallableCase::Invalid;
  };

  LibCppStdFunctionCallableInfo
  FindLibCppStdFunctionCallableInfo(lldb::ValueObjectSP &valobj_sp);

  ~CPPLanguageRuntime() override;

  static char ID;

  bool isA(const void *ClassID) const override {
    return ClassID == &ID || LanguageRuntime::isA(ClassID);
  }

  static bool classof(const LanguageRuntime *runtime) {
    return runtime->isA(&ID);
  }

  lldb::LanguageType GetLanguageType() const override {
    return lldb::eLanguageTypeC_plus_plus;
  }

  static CPPLanguageRuntime *Get(Process &process) {
    return llvm::cast_or_null<CPPLanguageRuntime>(
        process.GetLanguageRuntime(lldb::eLanguageTypeC_plus_plus));
  }

  bool GetObjectDescription(Stream &str, ValueObject &object) override;

  bool GetObjectDescription(Stream &str, Value &value,
                            ExecutionContextScope *exe_scope) override;

  /// Obtain a ThreadPlan to get us into C++ constructs such as std::function.
  ///
  /// \param[in] thread
  ///     Curent thrad of execution.
  ///
  /// \param[in] stop_others
  ///     True if other threads should pause during execution.
  ///
  /// \return
  ///      A ThreadPlan Shared pointer
  lldb::ThreadPlanSP GetStepThroughTrampolinePlan(Thread &thread,
                                                  bool stop_others) override;

  bool IsWhitelistedRuntimeValue(ConstString name) override;
protected:
  // Classes that inherit from CPPLanguageRuntime can see and modify these
  CPPLanguageRuntime(Process *process);

private:
  DISALLOW_COPY_AND_ASSIGN(CPPLanguageRuntime);
};

} // namespace lldb_private

#endif // liblldb_CPPLanguageRuntime_h_