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 "ClangPersistentVariables.h"
11
12 #include "lldb/Core/Value.h"
13 #include "lldb/Target/Target.h"
14 #include "lldb/Utility/DataExtractor.h"
15 #include "lldb/Utility/Log.h"
16 #include "lldb/Utility/StreamString.h"
17
18 #include "clang/AST/Decl.h"
19
20 #include "llvm/ADT/StringMap.h"
21
22 using namespace lldb;
23 using namespace lldb_private;
24
ClangPersistentVariables()25 ClangPersistentVariables::ClangPersistentVariables()
26 : lldb_private::PersistentExpressionState(LLVMCastKind::eKindClang),
27 m_next_persistent_variable_id(0) {}
28
CreatePersistentVariable(const lldb::ValueObjectSP & valobj_sp)29 ExpressionVariableSP ClangPersistentVariables::CreatePersistentVariable(
30 const lldb::ValueObjectSP &valobj_sp) {
31 return AddNewlyConstructedVariable(new ClangExpressionVariable(valobj_sp));
32 }
33
CreatePersistentVariable(ExecutionContextScope * exe_scope,const ConstString & name,const CompilerType & compiler_type,lldb::ByteOrder byte_order,uint32_t addr_byte_size)34 ExpressionVariableSP ClangPersistentVariables::CreatePersistentVariable(
35 ExecutionContextScope *exe_scope, const ConstString &name,
36 const CompilerType &compiler_type, lldb::ByteOrder byte_order,
37 uint32_t addr_byte_size) {
38 return AddNewlyConstructedVariable(new ClangExpressionVariable(
39 exe_scope, name, compiler_type, byte_order, addr_byte_size));
40 }
41
RemovePersistentVariable(lldb::ExpressionVariableSP variable)42 void ClangPersistentVariables::RemovePersistentVariable(
43 lldb::ExpressionVariableSP variable) {
44 RemoveVariable(variable);
45
46 const char *name = variable->GetName().AsCString();
47
48 if (*name != '$')
49 return;
50 name++;
51
52 if (strtoul(name, NULL, 0) == m_next_persistent_variable_id - 1)
53 m_next_persistent_variable_id--;
54 }
55
RegisterPersistentDecl(const ConstString & name,clang::NamedDecl * decl)56 void ClangPersistentVariables::RegisterPersistentDecl(const ConstString &name,
57 clang::NamedDecl *decl) {
58 m_persistent_decls.insert(
59 std::pair<const char *, clang::NamedDecl *>(name.GetCString(), decl));
60
61 if (clang::EnumDecl *enum_decl = llvm::dyn_cast<clang::EnumDecl>(decl)) {
62 for (clang::EnumConstantDecl *enumerator_decl : enum_decl->enumerators()) {
63 m_persistent_decls.insert(std::pair<const char *, clang::NamedDecl *>(
64 ConstString(enumerator_decl->getNameAsString()).GetCString(),
65 enumerator_decl));
66 }
67 }
68 }
69
70 clang::NamedDecl *
GetPersistentDecl(const ConstString & name)71 ClangPersistentVariables::GetPersistentDecl(const ConstString &name) {
72 PersistentDeclMap::const_iterator i =
73 m_persistent_decls.find(name.GetCString());
74
75 if (i == m_persistent_decls.end())
76 return NULL;
77 else
78 return i->second;
79 }
80