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Diffstat (limited to 'source/Plugins/ExpressionParser/Go/GoUserExpression.h')
-rw-r--r-- | source/Plugins/ExpressionParser/Go/GoUserExpression.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/source/Plugins/ExpressionParser/Go/GoUserExpression.h b/source/Plugins/ExpressionParser/Go/GoUserExpression.h new file mode 100644 index 000000000000..b429c68f023d --- /dev/null +++ b/source/Plugins/ExpressionParser/Go/GoUserExpression.h @@ -0,0 +1,98 @@ +//===-- 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_ |