diff options
Diffstat (limited to 'lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionVariable.h')
| -rw-r--r-- | lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionVariable.h | 359 |
1 files changed, 167 insertions, 192 deletions
diff --git a/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionVariable.h b/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionVariable.h index a4596148f6c..c894506a227 100644 --- a/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionVariable.h +++ b/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionVariable.h @@ -24,15 +24,15 @@ #include "llvm/Support/Casting.h" // Project includes -#include "lldb/lldb-public.h" #include "lldb/Core/ClangForward.h" #include "lldb/Core/ConstString.h" #include "lldb/Core/Value.h" #include "lldb/Expression/ExpressionVariable.h" #include "lldb/Symbol/TaggedASTType.h" +#include "lldb/lldb-public.h" namespace llvm { - class Value; +class Value; } namespace lldb_private { @@ -40,7 +40,8 @@ namespace lldb_private { class ValueObjectConstResult; //---------------------------------------------------------------------- -/// @class ClangExpressionVariable ClangExpressionVariable.h "lldb/Expression/ClangExpressionVariable.h" +/// @class ClangExpressionVariable ClangExpressionVariable.h +/// "lldb/Expression/ClangExpressionVariable.h" /// @brief Encapsulates one variable for the expression parser. /// /// The expression parser uses variables in three different contexts: @@ -62,204 +63,178 @@ class ValueObjectConstResult; /// polymorphism, and provides necessary support methods. Its interface /// is RTTI-neutral. //---------------------------------------------------------------------- -class ClangExpressionVariable : public ExpressionVariable -{ +class ClangExpressionVariable : public ExpressionVariable { public: - ClangExpressionVariable(ExecutionContextScope *exe_scope, lldb::ByteOrder byte_order, uint32_t addr_byte_size); - - ClangExpressionVariable (ExecutionContextScope *exe_scope, - Value &value, - const ConstString &name, - uint16_t flags = EVNone); - - ClangExpressionVariable(const lldb::ValueObjectSP &valobj_sp); - - ClangExpressionVariable(ExecutionContextScope *exe_scope, - const ConstString &name, - const TypeFromUser& user_type, - lldb::ByteOrder byte_order, - uint32_t addr_byte_size); - - //---------------------------------------------------------------------- - /// Utility functions for dealing with ExpressionVariableLists in Clang-specific ways - //---------------------------------------------------------------------- - - //---------------------------------------------------------------------- - /// Finds a variable by NamedDecl in the list. - /// - /// @param[in] name - /// The name of the requested variable. - /// - /// @return - /// The variable requested, or NULL if that variable is not in the list. - //---------------------------------------------------------------------- - static ClangExpressionVariable * - FindVariableInList (ExpressionVariableList &list, const clang::NamedDecl *decl, uint64_t parser_id) - { - lldb::ExpressionVariableSP var_sp; - for (size_t index = 0, size = list.GetSize(); index < size; ++index) - { - var_sp = list.GetVariableAtIndex(index); - - if (ClangExpressionVariable *clang_var = llvm::dyn_cast<ClangExpressionVariable>(var_sp.get())) - { - ClangExpressionVariable::ParserVars *parser_vars = clang_var->GetParserVars(parser_id); - - if (parser_vars && parser_vars->m_named_decl == decl) - return clang_var; - } - } - return nullptr; + ClangExpressionVariable(ExecutionContextScope *exe_scope, + lldb::ByteOrder byte_order, uint32_t addr_byte_size); + + ClangExpressionVariable(ExecutionContextScope *exe_scope, Value &value, + const ConstString &name, uint16_t flags = EVNone); + + ClangExpressionVariable(const lldb::ValueObjectSP &valobj_sp); + + ClangExpressionVariable(ExecutionContextScope *exe_scope, + const ConstString &name, + const TypeFromUser &user_type, + lldb::ByteOrder byte_order, uint32_t addr_byte_size); + + //---------------------------------------------------------------------- + /// Utility functions for dealing with ExpressionVariableLists in + /// Clang-specific ways + //---------------------------------------------------------------------- + + //---------------------------------------------------------------------- + /// Finds a variable by NamedDecl in the list. + /// + /// @param[in] name + /// The name of the requested variable. + /// + /// @return + /// The variable requested, or NULL if that variable is not in the list. + //---------------------------------------------------------------------- + static ClangExpressionVariable * + FindVariableInList(ExpressionVariableList &list, const clang::NamedDecl *decl, + uint64_t parser_id) { + lldb::ExpressionVariableSP var_sp; + for (size_t index = 0, size = list.GetSize(); index < size; ++index) { + var_sp = list.GetVariableAtIndex(index); + + if (ClangExpressionVariable *clang_var = + llvm::dyn_cast<ClangExpressionVariable>(var_sp.get())) { + ClangExpressionVariable::ParserVars *parser_vars = + clang_var->GetParserVars(parser_id); + + if (parser_vars && parser_vars->m_named_decl == decl) + return clang_var; + } } + return nullptr; + } + + //---------------------------------------------------------------------- + /// If the variable contains its own data, make a Value point at it. + /// If \a exe_ctx in not NULL, the value will be resolved in with + /// that execution context. + /// + /// @param[in] value + /// The value to point at the data. + /// + /// @param[in] exe_ctx + /// The execution context to use to resolve \a value. + /// + /// @return + /// True on success; false otherwise (in particular, if this variable + /// does not contain its own data). + //---------------------------------------------------------------------- + bool PointValueAtData(Value &value, ExecutionContext *exe_ctx); + + //---------------------------------------------------------------------- + /// The following values should not live beyond parsing + //---------------------------------------------------------------------- + class ParserVars { + public: + ParserVars() + : m_parser_type(), m_named_decl(NULL), m_llvm_value(NULL), + m_lldb_value(), m_lldb_var(), m_lldb_sym(NULL) {} + + TypeFromParser + m_parser_type; ///< The type of the variable according to the parser + const clang::NamedDecl + *m_named_decl; ///< The Decl corresponding to this variable + llvm::Value *m_llvm_value; ///< The IR value corresponding to this variable; + ///usually a GlobalValue + lldb_private::Value + m_lldb_value; ///< The value found in LLDB for this variable + lldb::VariableSP m_lldb_var; ///< The original variable for this variable + const lldb_private::Symbol *m_lldb_sym; ///< The original symbol for this + ///variable, if it was a symbol + }; - //---------------------------------------------------------------------- - /// If the variable contains its own data, make a Value point at it. - /// If \a exe_ctx in not NULL, the value will be resolved in with - /// that execution context. - /// - /// @param[in] value - /// The value to point at the data. - /// - /// @param[in] exe_ctx - /// The execution context to use to resolve \a value. - /// - /// @return - /// True on success; false otherwise (in particular, if this variable - /// does not contain its own data). - //---------------------------------------------------------------------- - bool - PointValueAtData(Value &value, ExecutionContext *exe_ctx); - - //---------------------------------------------------------------------- - /// The following values should not live beyond parsing - //---------------------------------------------------------------------- - class ParserVars - { - public: - - ParserVars() : - m_parser_type(), - m_named_decl (NULL), - m_llvm_value (NULL), - m_lldb_value (), - m_lldb_var (), - m_lldb_sym (NULL) - { - } - - TypeFromParser m_parser_type; ///< The type of the variable according to the parser - const clang::NamedDecl *m_named_decl; ///< The Decl corresponding to this variable - llvm::Value *m_llvm_value; ///< The IR value corresponding to this variable; usually a GlobalValue - lldb_private::Value m_lldb_value; ///< The value found in LLDB for this variable - lldb::VariableSP m_lldb_var; ///< The original variable for this variable - const lldb_private::Symbol *m_lldb_sym; ///< The original symbol for this variable, if it was a symbol - }; - private: - typedef std::map <uint64_t, ParserVars> ParserVarMap; - ParserVarMap m_parser_vars; + typedef std::map<uint64_t, ParserVars> ParserVarMap; + ParserVarMap m_parser_vars; public: - //---------------------------------------------------------------------- - /// Make this variable usable by the parser by allocating space for - /// parser-specific variables - //---------------------------------------------------------------------- - void - EnableParserVars(uint64_t parser_id) - { - m_parser_vars.insert(std::make_pair(parser_id, ParserVars())); - } - - //---------------------------------------------------------------------- - /// Deallocate parser-specific variables - //---------------------------------------------------------------------- - void - DisableParserVars(uint64_t parser_id) - { - m_parser_vars.erase(parser_id); - } - - //---------------------------------------------------------------------- - /// Access parser-specific variables - //---------------------------------------------------------------------- - ParserVars * - GetParserVars(uint64_t parser_id) - { - ParserVarMap::iterator i = m_parser_vars.find(parser_id); - - if (i == m_parser_vars.end()) - return NULL; - else - return &i->second; - } - - //---------------------------------------------------------------------- - /// The following values are valid if the variable is used by JIT code - //---------------------------------------------------------------------- - struct JITVars { - JITVars () : - m_alignment (0), - m_size (0), - m_offset (0) - { - } - - lldb::offset_t m_alignment; ///< The required alignment of the variable, in bytes - size_t m_size; ///< The space required for the variable, in bytes - lldb::offset_t m_offset; ///< The offset of the variable in the struct, in bytes - }; - + //---------------------------------------------------------------------- + /// Make this variable usable by the parser by allocating space for + /// parser-specific variables + //---------------------------------------------------------------------- + void EnableParserVars(uint64_t parser_id) { + m_parser_vars.insert(std::make_pair(parser_id, ParserVars())); + } + + //---------------------------------------------------------------------- + /// Deallocate parser-specific variables + //---------------------------------------------------------------------- + void DisableParserVars(uint64_t parser_id) { m_parser_vars.erase(parser_id); } + + //---------------------------------------------------------------------- + /// Access parser-specific variables + //---------------------------------------------------------------------- + ParserVars *GetParserVars(uint64_t parser_id) { + ParserVarMap::iterator i = m_parser_vars.find(parser_id); + + if (i == m_parser_vars.end()) + return NULL; + else + return &i->second; + } + + //---------------------------------------------------------------------- + /// The following values are valid if the variable is used by JIT code + //---------------------------------------------------------------------- + struct JITVars { + JITVars() : m_alignment(0), m_size(0), m_offset(0) {} + + lldb::offset_t + m_alignment; ///< The required alignment of the variable, in bytes + size_t m_size; ///< The space required for the variable, in bytes + lldb::offset_t + m_offset; ///< The offset of the variable in the struct, in bytes + }; + private: - typedef std::map <uint64_t, JITVars> JITVarMap; - JITVarMap m_jit_vars; - + typedef std::map<uint64_t, JITVars> JITVarMap; + JITVarMap m_jit_vars; + public: - //---------------------------------------------------------------------- - /// Make this variable usable for materializing for the JIT by allocating - /// space for JIT-specific variables - //---------------------------------------------------------------------- - void - EnableJITVars(uint64_t parser_id) - { - m_jit_vars.insert(std::make_pair(parser_id, JITVars())); - } - - //---------------------------------------------------------------------- - /// Deallocate JIT-specific variables - //---------------------------------------------------------------------- - void - DisableJITVars(uint64_t parser_id) - { - m_jit_vars.erase(parser_id); - } - - JITVars *GetJITVars(uint64_t parser_id) - { - JITVarMap::iterator i = m_jit_vars.find(parser_id); - - if (i == m_jit_vars.end()) - return NULL; - else - return &i->second; - } - - TypeFromUser - GetTypeFromUser (); - - //------------------------------------------------------------------ - // llvm casting support - //------------------------------------------------------------------ - static bool classof(const ExpressionVariable *ev) - { - return ev->getKind() == ExpressionVariable::eKindClang; - } - - //---------------------------------------------------------------------- - /// Members - //---------------------------------------------------------------------- - DISALLOW_COPY_AND_ASSIGN (ClangExpressionVariable); + //---------------------------------------------------------------------- + /// Make this variable usable for materializing for the JIT by allocating + /// space for JIT-specific variables + //---------------------------------------------------------------------- + void EnableJITVars(uint64_t parser_id) { + m_jit_vars.insert(std::make_pair(parser_id, JITVars())); + } + + //---------------------------------------------------------------------- + /// Deallocate JIT-specific variables + //---------------------------------------------------------------------- + void DisableJITVars(uint64_t parser_id) { m_jit_vars.erase(parser_id); } + + JITVars *GetJITVars(uint64_t parser_id) { + JITVarMap::iterator i = m_jit_vars.find(parser_id); + + if (i == m_jit_vars.end()) + return NULL; + else + return &i->second; + } + + TypeFromUser GetTypeFromUser(); + + //------------------------------------------------------------------ + // llvm casting support + //------------------------------------------------------------------ + static bool classof(const ExpressionVariable *ev) { + return ev->getKind() == ExpressionVariable::eKindClang; + } + + //---------------------------------------------------------------------- + /// Members + //---------------------------------------------------------------------- + DISALLOW_COPY_AND_ASSIGN(ClangExpressionVariable); }; } // namespace lldb_private -#endif // liblldb_ClangExpressionVariable_h_ +#endif // liblldb_ClangExpressionVariable_h_ |
