1//===-- CPPLanguageRuntime.h
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_CPLUSPLUS_CPPLANGUAGERUNTIME_H
10#define LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_CPLUSPLUS_CPPLANGUAGERUNTIME_H
11
12#include <vector>
13
14#include "llvm/ADT/StringMap.h"
15
16#include "lldb/Core/PluginInterface.h"
17#include "lldb/Target/LanguageRuntime.h"
18#include "lldb/lldb-private.h"
19
20namespace lldb_private {
21
22class CPPLanguageRuntime : public LanguageRuntime {
23public:
24 enum class LibCppStdFunctionCallableCase {
25 Lambda = 0,
26 CallableObject,
27 FreeOrMemberFunction,
28 Invalid
29 };
30
31 struct LibCppStdFunctionCallableInfo {
32 Symbol callable_symbol;
33 Address callable_address;
34 LineEntry callable_line_entry;
35 lldb::addr_t member_f_pointer_value = 0u;
36 LibCppStdFunctionCallableCase callable_case =
37 LibCppStdFunctionCallableCase::Invalid;
38 };
39
40 LibCppStdFunctionCallableInfo
41 FindLibCppStdFunctionCallableInfo(lldb::ValueObjectSP &valobj_sp);
42
43 static char ID;
44
45 bool isA(const void *ClassID) const override {
46 return ClassID == &ID || LanguageRuntime::isA(ClassID);
47 }
48
49 static bool classof(const LanguageRuntime *runtime) {
50 return runtime->isA(ClassID: &ID);
51 }
52
53 lldb::LanguageType GetLanguageType() const override {
54 return lldb::eLanguageTypeC_plus_plus;
55 }
56
57 static CPPLanguageRuntime *Get(Process &process) {
58 return llvm::cast_or_null<CPPLanguageRuntime>(
59 Val: process.GetLanguageRuntime(language: lldb::eLanguageTypeC_plus_plus));
60 }
61
62 llvm::Error GetObjectDescription(Stream &str, ValueObject &object) override;
63
64 llvm::Error GetObjectDescription(Stream &str, Value &value,
65 ExecutionContextScope *exe_scope) override;
66
67 /// Obtain a ThreadPlan to get us into C++ constructs such as std::function.
68 ///
69 /// \param[in] thread
70 /// Current thrad of execution.
71 ///
72 /// \param[in] stop_others
73 /// True if other threads should pause during execution.
74 ///
75 /// \return
76 /// A ThreadPlan Shared pointer
77 lldb::ThreadPlanSP GetStepThroughTrampolinePlan(Thread &thread,
78 bool stop_others) override;
79
80 bool IsAllowedRuntimeValue(ConstString name) override;
81
82 bool IsSymbolARuntimeThunk(const Symbol &symbol) override;
83
84protected:
85 // Classes that inherit from CPPLanguageRuntime can see and modify these
86 CPPLanguageRuntime(Process *process);
87
88private:
89 using OperatorStringToCallableInfoMap =
90 llvm::StringMap<CPPLanguageRuntime::LibCppStdFunctionCallableInfo>;
91
92 OperatorStringToCallableInfoMap CallableLookupCache;
93};
94
95} // namespace lldb_private
96
97#endif // LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_CPLUSPLUS_CPPLANGUAGERUNTIME_H
98

source code of lldb/source/Plugins/LanguageRuntime/CPlusPlus/CPPLanguageRuntime.h