1 //===-- ScriptedPythonInterface.cpp ---------------------------------------===//
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 #include "lldb/Host/Config.h"
10 #include "lldb/Utility/Log.h"
11 #include "lldb/lldb-enumerations.h"
12 
13 #if LLDB_ENABLE_PYTHON
14 
15 // LLDB Python header must be included first
16 #include "../lldb-python.h"
17 
18 #include "../ScriptInterpreterPythonImpl.h"
19 #include "ScriptedPythonInterface.h"
20 #include <optional>
21 
22 using namespace lldb;
23 using namespace lldb_private;
24 
ScriptedPythonInterface(ScriptInterpreterPythonImpl & interpreter)25 ScriptedPythonInterface::ScriptedPythonInterface(
26     ScriptInterpreterPythonImpl &interpreter)
27     : ScriptedInterface(), m_interpreter(interpreter) {}
28 
29 template <>
30 StructuredData::ArraySP
ExtractValueFromPythonObject(python::PythonObject & p,Status & error)31 ScriptedPythonInterface::ExtractValueFromPythonObject<StructuredData::ArraySP>(
32     python::PythonObject &p, Status &error) {
33   python::PythonList result_list(python::PyRefType::Borrowed, p.get());
34   return result_list.CreateStructuredArray();
35 }
36 
37 template <>
38 StructuredData::DictionarySP
ExtractValueFromPythonObject(python::PythonObject & p,Status & error)39 ScriptedPythonInterface::ExtractValueFromPythonObject<
40     StructuredData::DictionarySP>(python::PythonObject &p, Status &error) {
41   python::PythonDictionary result_dict(python::PyRefType::Borrowed, p.get());
42   return result_dict.CreateStructuredDictionary();
43 }
44 
45 template <>
ExtractValueFromPythonObject(python::PythonObject & p,Status & error)46 Status ScriptedPythonInterface::ExtractValueFromPythonObject<Status>(
47     python::PythonObject &p, Status &error) {
48   if (lldb::SBError *sb_error = reinterpret_cast<lldb::SBError *>(
49           python::LLDBSWIGPython_CastPyObjectToSBError(p.get())))
50     return m_interpreter.GetStatusFromSBError(*sb_error);
51   else
52     error.SetErrorString("Couldn't cast lldb::SBError to lldb::Status.");
53 
54   return {};
55 }
56 
57 template <>
58 lldb::DataExtractorSP
ExtractValueFromPythonObject(python::PythonObject & p,Status & error)59 ScriptedPythonInterface::ExtractValueFromPythonObject<lldb::DataExtractorSP>(
60     python::PythonObject &p, Status &error) {
61   lldb::SBData *sb_data = reinterpret_cast<lldb::SBData *>(
62       python::LLDBSWIGPython_CastPyObjectToSBData(p.get()));
63 
64   if (!sb_data) {
65     error.SetErrorString(
66         "Couldn't cast lldb::SBData to lldb::DataExtractorSP.");
67     return nullptr;
68   }
69 
70   return m_interpreter.GetDataExtractorFromSBData(*sb_data);
71 }
72 
73 template <>
74 lldb::BreakpointSP
ExtractValueFromPythonObject(python::PythonObject & p,Status & error)75 ScriptedPythonInterface::ExtractValueFromPythonObject<lldb::BreakpointSP>(
76     python::PythonObject &p, Status &error) {
77   lldb::SBBreakpoint *sb_breakpoint = reinterpret_cast<lldb::SBBreakpoint *>(
78       python::LLDBSWIGPython_CastPyObjectToSBBreakpoint(p.get()));
79 
80   if (!sb_breakpoint) {
81     error.SetErrorString(
82         "Couldn't cast lldb::SBBreakpoint to lldb::BreakpointSP.");
83     return nullptr;
84   }
85 
86   return m_interpreter.GetOpaqueTypeFromSBBreakpoint(*sb_breakpoint);
87 }
88 
89 template <>
ExtractValueFromPythonObject(python::PythonObject & p,Status & error)90 lldb::ProcessAttachInfoSP ScriptedPythonInterface::ExtractValueFromPythonObject<
91     lldb::ProcessAttachInfoSP>(python::PythonObject &p, Status &error) {
92   lldb::SBAttachInfo *sb_attach_info = reinterpret_cast<lldb::SBAttachInfo *>(
93       python::LLDBSWIGPython_CastPyObjectToSBAttachInfo(p.get()));
94 
95   if (!sb_attach_info) {
96     error.SetErrorString(
97         "Couldn't cast lldb::SBAttachInfo to lldb::ProcessAttachInfoSP.");
98     return nullptr;
99   }
100 
101   return m_interpreter.GetOpaqueTypeFromSBAttachInfo(*sb_attach_info);
102 }
103 
104 template <>
ExtractValueFromPythonObject(python::PythonObject & p,Status & error)105 lldb::ProcessLaunchInfoSP ScriptedPythonInterface::ExtractValueFromPythonObject<
106     lldb::ProcessLaunchInfoSP>(python::PythonObject &p, Status &error) {
107   lldb::SBLaunchInfo *sb_launch_info = reinterpret_cast<lldb::SBLaunchInfo *>(
108       python::LLDBSWIGPython_CastPyObjectToSBLaunchInfo(p.get()));
109 
110   if (!sb_launch_info) {
111     error.SetErrorString(
112         "Couldn't cast lldb::SBLaunchInfo to lldb::ProcessLaunchInfoSP.");
113     return nullptr;
114   }
115 
116   return m_interpreter.GetOpaqueTypeFromSBLaunchInfo(*sb_launch_info);
117 }
118 
119 template <>
120 std::optional<MemoryRegionInfo>
ExtractValueFromPythonObject(python::PythonObject & p,Status & error)121 ScriptedPythonInterface::ExtractValueFromPythonObject<
122     std::optional<MemoryRegionInfo>>(python::PythonObject &p, Status &error) {
123 
124   lldb::SBMemoryRegionInfo *sb_mem_reg_info =
125       reinterpret_cast<lldb::SBMemoryRegionInfo *>(
126           python::LLDBSWIGPython_CastPyObjectToSBMemoryRegionInfo(p.get()));
127 
128   if (!sb_mem_reg_info) {
129     error.SetErrorString(
130         "Couldn't cast lldb::SBMemoryRegionInfo to lldb::MemoryRegionInfoSP.");
131     return {};
132   }
133 
134   return m_interpreter.GetOpaqueTypeFromSBMemoryRegionInfo(*sb_mem_reg_info);
135 }
136 
137 #endif
138