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//===-- ClangPersistentVariables.h ------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_ClangPersistentVariables_h_
#define liblldb_ClangPersistentVariables_h_
#include "lldb/Expression/ClangExpressionVariable.h"
#include "llvm/ADT/DenseMap.h"
namespace lldb_private
{
//----------------------------------------------------------------------
/// @class ClangPersistentVariables ClangPersistentVariables.h "lldb/Expression/ClangPersistentVariables.h"
/// @brief Manages persistent values that need to be preserved between expression invocations.
///
/// A list of variables that can be accessed and updated by any expression. See
/// ClangPersistentVariable for more discussion. Also provides an increasing,
/// 0-based counter for naming result variables.
//----------------------------------------------------------------------
class ClangPersistentVariables : public ClangExpressionVariableList
{
public:
//----------------------------------------------------------------------
/// Constructor
//----------------------------------------------------------------------
ClangPersistentVariables ();
lldb::ClangExpressionVariableSP
CreatePersistentVariable (const lldb::ValueObjectSP &valobj_sp);
lldb::ClangExpressionVariableSP
CreatePersistentVariable (ExecutionContextScope *exe_scope,
const ConstString &name,
const TypeFromUser& user_type,
lldb::ByteOrder byte_order,
uint32_t addr_byte_size);
//----------------------------------------------------------------------
/// Return the next entry in the sequence of strings "$0", "$1", ... for
/// use naming persistent expression convenience variables.
///
/// @return
/// A string that contains the next persistent variable name.
//----------------------------------------------------------------------
ConstString
GetNextPersistentVariableName ();
void
RemovePersistentVariable (lldb::ClangExpressionVariableSP variable);
void
RegisterPersistentType (const ConstString &name,
clang::TypeDecl *tag_decl);
clang::TypeDecl *
GetPersistentType (const ConstString &name);
private:
uint32_t m_next_persistent_variable_id; ///< The counter used by GetNextResultName().
typedef llvm::DenseMap<const char *, clang::TypeDecl *> PersistentTypeMap;
PersistentTypeMap m_persistent_types; ///< The persistent types declared by the user.
};
}
#endif
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