1 //===-- ClangPersistentVariables.cpp ----------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "lldb/Expression/ClangPersistentVariables.h" 11 #include "lldb/Core/DataExtractor.h" 12 #include "lldb/Core/Log.h" 13 #include "lldb/Core/StreamString.h" 14 #include "lldb/Core/Value.h" 15 16 #include "llvm/ADT/StringMap.h" 17 18 using namespace lldb; 19 using namespace lldb_private; 20 21 ClangPersistentVariables::ClangPersistentVariables () : 22 ClangExpressionVariableList(), 23 m_next_persistent_variable_id (0) 24 { 25 } 26 27 ClangExpressionVariableSP 28 ClangPersistentVariables::CreatePersistentVariable (const lldb::ValueObjectSP &valobj_sp) 29 { 30 ClangExpressionVariableSP var_sp (CreateVariable(valobj_sp)); 31 return var_sp; 32 } 33 34 ClangExpressionVariableSP 35 ClangPersistentVariables::CreatePersistentVariable (ExecutionContextScope *exe_scope, 36 const ConstString &name, 37 const TypeFromUser& user_type, 38 lldb::ByteOrder byte_order, 39 uint32_t addr_byte_size) 40 { 41 ClangExpressionVariableSP var_sp (GetVariable(name)); 42 43 if (!var_sp) 44 var_sp = CreateVariable(exe_scope, name, user_type, byte_order, addr_byte_size); 45 46 return var_sp; 47 } 48 49 void 50 ClangPersistentVariables::RemovePersistentVariable (lldb::ClangExpressionVariableSP variable) 51 { 52 RemoveVariable(variable); 53 54 const char *name = variable->GetName().AsCString(); 55 56 if (*name != '$') 57 return; 58 name++; 59 60 if (strtoul(name, NULL, 0) == m_next_persistent_variable_id - 1) 61 m_next_persistent_variable_id--; 62 } 63 64 ConstString 65 ClangPersistentVariables::GetNextPersistentVariableName () 66 { 67 char name_cstr[256]; 68 ::snprintf (name_cstr, sizeof(name_cstr), "$%u", m_next_persistent_variable_id++); 69 ConstString name(name_cstr); 70 return name; 71 } 72 73 void 74 ClangPersistentVariables::RegisterPersistentType (const ConstString &name, 75 clang::TypeDecl *type_decl) 76 { 77 m_persistent_types.insert(std::pair<const char*, clang::TypeDecl*>(name.GetCString(), type_decl)); 78 } 79 80 clang::TypeDecl * 81 ClangPersistentVariables::GetPersistentType (const ConstString &name) 82 { 83 PersistentTypeMap::const_iterator i = m_persistent_types.find(name.GetCString()); 84 85 if (i == m_persistent_types.end()) 86 return NULL; 87 else 88 return i->second; 89 } 90
