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