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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| 
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| #ifndef liblldb_ClangUtilityFunction_h_
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| #define liblldb_ClangUtilityFunction_h_
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| 
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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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| 
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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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| 
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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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| 
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| namespace lldb_private 
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| {
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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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|         
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|         ~ClangUtilityFunctionHelper() override {}
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|         
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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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|         
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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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|         
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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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|         //------------------------------------------------------------------
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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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|     
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|     ~ClangUtilityFunction() override;
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|     
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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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| 
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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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| 
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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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|     
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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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|     
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|     bool
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|     Install (Stream &error_stream, ExecutionContext &exe_ctx) override;
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|     
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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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| 
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| } // namespace lldb_private
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| 
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| #endif // liblldb_ClangUtilityFunction_h_
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