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//===-- ClangUtilityFunction.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_ClangUtilityFunction_h_
#define liblldb_ClangUtilityFunction_h_
// C Includes
// C++ Includes
#include <string>
#include <map>
#include <vector>
// Other libraries and framework includes
// Project includes
#include "ClangExpressionHelper.h"
#include "lldb/lldb-forward.h"
#include "lldb/lldb-private.h"
#include "lldb/Core/ClangForward.h"
#include "lldb/Expression/UtilityFunction.h"
namespace lldb_private
{
//----------------------------------------------------------------------
/// @class ClangUtilityFunction ClangUtilityFunction.h "lldb/Expression/ClangUtilityFunction.h"
/// @brief Encapsulates a single expression for use with Clang
///
/// LLDB uses expressions for various purposes, notably to call functions
/// and as a backend for the expr command. ClangUtilityFunction encapsulates
/// a self-contained function meant to be used from other code. Utility
/// functions can perform error-checking for ClangUserExpressions, or can
/// simply provide a way to push a function into the target for the debugger to
/// call later on.
//----------------------------------------------------------------------
class ClangUtilityFunction : public UtilityFunction
{
public:
class ClangUtilityFunctionHelper : public ClangExpressionHelper
{
public:
ClangUtilityFunctionHelper ()
{
}
~ClangUtilityFunctionHelper() override {}
//------------------------------------------------------------------
/// Return the object that the parser should use when resolving external
/// values. May be NULL if everything should be self-contained.
//------------------------------------------------------------------
ClangExpressionDeclMap *
DeclMap() override
{
return m_expr_decl_map_up.get();
}
void
ResetDeclMap()
{
m_expr_decl_map_up.reset();
}
void
ResetDeclMap (ExecutionContext & exe_ctx, bool keep_result_in_memory);
//------------------------------------------------------------------
/// Return the object that the parser should allow to access ASTs.
/// May be NULL if the ASTs do not need to be transformed.
///
/// @param[in] passthrough
/// The ASTConsumer that the returned transformer should send
/// the ASTs to after transformation.
//------------------------------------------------------------------
clang::ASTConsumer *
ASTTransformer(clang::ASTConsumer *passthrough) override
{
return nullptr;
}
private:
std::unique_ptr<ClangExpressionDeclMap> m_expr_decl_map_up;
};
//------------------------------------------------------------------
/// Constructor
///
/// @param[in] text
/// The text of the function. Must be a full translation unit.
///
/// @param[in] name
/// The name of the function, as used in the text.
//------------------------------------------------------------------
ClangUtilityFunction (ExecutionContextScope &exe_scope,
const char *text,
const char *name);
~ClangUtilityFunction() override;
ExpressionTypeSystemHelper *
GetTypeSystemHelper () override
{
return &m_type_system_helper;
}
ClangExpressionDeclMap *
DeclMap()
{
return m_type_system_helper.DeclMap();
}
void
ResetDeclMap ()
{
m_type_system_helper.ResetDeclMap();
}
void
ResetDeclMap (ExecutionContext & exe_ctx, bool keep_result_in_memory)
{
m_type_system_helper.ResetDeclMap(exe_ctx, keep_result_in_memory);
}
bool
Install(DiagnosticManager &diagnostic_manager, ExecutionContext &exe_ctx) override;
private:
ClangUtilityFunctionHelper m_type_system_helper; ///< The map to use when parsing and materializing the expression.
};
} // namespace lldb_private
#endif // liblldb_ClangUtilityFunction_h_
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