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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/Expression/ExpressionVariable.h"
#include "lldb/Expression/UserExpression.h"
#include "lldb/Target/ExecutionContext.h"
#include "lldb/lldb-forward.h"
#include "lldb/lldb-private.h"
namespace lldb_private {
class GoParser;
class GoPersistentExpressionState : public PersistentExpressionState {
public:
GoPersistentExpressionState();
llvm::StringRef
GetPersistentVariablePrefix(bool is_error) const override {
return "$go";
}
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" 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, llvm::StringRef expr,
llvm::StringRef prefix, lldb::LanguageType language,
ResultType desired_type,
const EvaluateExpressionOptions &options);
bool Parse(DiagnosticManager &diagnostic_manager, ExecutionContext &exe_ctx,
lldb_private::ExecutionPolicy execution_policy,
bool keep_result_in_memory, bool generate_debug_info) override;
bool CanInterpret() override { return true; }
bool FinalizeJITExecution(
DiagnosticManager &diagnostic_manager, 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;
}
protected:
lldb::ExpressionResults
DoExecute(DiagnosticManager &diagnostic_manager, ExecutionContext &exe_ctx,
const EvaluateExpressionOptions &options,
lldb::UserExpressionSP &shared_ptr_to_me,
lldb::ExpressionVariableSP &result) override;
private:
class GoInterpreter;
std::unique_ptr<GoInterpreter> m_interpreter;
};
} // namespace lldb_private
#endif // liblldb_GoUserExpression_h_
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