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//===-- GoUserExpression.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_GoUserExpression_h_
#define liblldb_GoUserExpression_h_
// C Includes
// C++ Includes
#include <memory>
// Other libraries and framework includes
// Project includes
#include "lldb/lldb-forward.h"
#include "lldb/lldb-private.h"
#include "lldb/Expression/UserExpression.h"
#include "lldb/Expression/ExpressionVariable.h"
#include "lldb/Target/ExecutionContext.h"
namespace lldb_private
{
class GoParser;
class GoPersistentExpressionState : public PersistentExpressionState
{
public:
GoPersistentExpressionState();
ConstString GetNextPersistentVariableName() override;
void RemovePersistentVariable(lldb::ExpressionVariableSP variable) override;
lldb::addr_t
LookupSymbol(const ConstString &name) override
{
return LLDB_INVALID_ADDRESS;
}
static bool
classof(const PersistentExpressionState *pv)
{
return pv->getKind() == PersistentExpressionState::eKindGo;
}
private:
uint32_t m_next_persistent_variable_id; ///< The counter used by GetNextResultName().
};
//----------------------------------------------------------------------
/// @class GoUserExpression GoUserExpression.h "lldb/Expression/GoUserExpression.h"
/// @brief Encapsulates a single expression for use with Go
///
/// LLDB uses expressions for various purposes, notably to call functions
/// and as a backend for the expr command. GoUserExpression encapsulates
/// the objects needed to parse and interpret an expression.
//----------------------------------------------------------------------
class GoUserExpression : public UserExpression
{
public:
GoUserExpression(ExecutionContextScope &exe_scope, const char *expr, const char *expr_prefix,
lldb::LanguageType language, ResultType desired_type, const EvaluateExpressionOptions &options);
bool
Parse(Stream &error_stream, ExecutionContext &exe_ctx, lldb_private::ExecutionPolicy execution_policy,
bool keep_result_in_memory, bool generate_debug_info) override;
lldb::ExpressionResults
Execute(Stream &error_stream, ExecutionContext &exe_ctx,
const EvaluateExpressionOptions &options,
lldb::UserExpressionSP &shared_ptr_to_me,
lldb::ExpressionVariableSP &result) override;
bool
CanInterpret() override
{
return true;
}
bool
FinalizeJITExecution(Stream &error_stream, ExecutionContext &exe_ctx, lldb::ExpressionVariableSP &result,
lldb::addr_t function_stack_bottom = LLDB_INVALID_ADDRESS,
lldb::addr_t function_stack_top = LLDB_INVALID_ADDRESS) override
{
return true;
}
private:
class GoInterpreter;
std::unique_ptr<GoInterpreter> m_interpreter;
};
} // namespace lldb_private
#endif // liblldb_GoUserExpression_h_
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