Mercurial > octave
view libinterp/octave-value/ov-classdef.h @ 26916:9cd4b045fe3d
avoid some overloaded virtual warnings (bug #55741)
* ov-base-diag.h, ov-base-mat.h, ov-base-scalar.h, ov-base-sparse.h,
ov-base.h, ov-class.h, ov-classdef.h, ov-cs-list.h, ov-fcn-handle.h,
ov-java.h, ov-lazy-idx.h, ov-perm.h, ov-range.h: Avoid overloaded
virtual method warnings for classes derived from octave_base_value
that partially overload the three virtual subsref methods by adding
using declarations.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Fri, 15 Mar 2019 05:45:27 +0000 |
parents | 2d65d46c620b |
children | 9dd1d8973877 |
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/* Copyright (C) 2012-2019 Michael Goffioul This file is part of Octave. Octave is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <https://www.gnu.org/licenses/>. */ #if ! defined (octave_classdef_h) #define octave_classdef_h 1 #include "octave-config.h" #include <string> #include "cdef-object.h" #include "ov-base.h" #include "ov-fcn.h" namespace octave { class cdef_object; class interpreter; class tree_evaluator; class type_info; } class octave_classdef : public octave_base_value { public: octave_classdef (void) : octave_base_value (), object () { } octave_classdef (const octave::cdef_object& obj) : octave_base_value (), object (obj) { } octave_classdef (const octave_classdef&) = delete; octave_classdef& operator = (const octave_classdef&) = delete; ~octave_classdef (void) = default; octave_base_value * clone (void) const { return new octave_classdef (object.clone ()); } octave_base_value * empty_clone (void) const { return new octave_classdef (object.empty_clone ()); } octave_classdef * classdef_object_value (bool = false) { return this; } octave::cdef_object get_object (void) const { return object; } octave::cdef_object& get_object_ref (void) { return object; } bool is_defined (void) const { return true; } bool isstruct (void) const { return false; } bool isobject (void) const { return true; } bool is_classdef_object (void) const { return true; } void print (std::ostream& os, bool pr_as_read_syntax = false); void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const; bool is_instance_of (const std::string& cls_name) const; octave_value_list subsref (const std::string& type, const std::list<octave_value_list>& idx, int nargout); octave_value subsref (const std::string& type, const std::list<octave_value_list>& idx) { octave_value_list retval = subsref (type, idx, 1); return (retval.length () > 0 ? retval(0) : octave_value ()); } octave_value subsref (const std::string& type, const std::list<octave_value_list>& idx, bool auto_add); octave_value subsasgn (const std::string& type, const std::list<octave_value_list>& idx, const octave_value& rhs); octave_value undef_subsasgn (const std::string& type, const std::list<octave_value_list>& idx, const octave_value& rhs); octave_idx_type numel (const octave_value_list&); string_vector map_keys (void) const { return object.map_keys (); } octave_map map_value (void) const { return object.map_value (); } dim_vector dims (void) const { return object.dims (); } void set_property (octave_idx_type idx, const std::string& name, const octave_value& pval) { object.set_property (idx, name, pval); } octave_value get_property (octave_idx_type idx, const std::string& name) const { return object.get_property (idx, name); } static octave_value superclass_ref (const std::string& meth, const std::string& cls); static octave_value metaclass_query (const std::string& cls); public: int type_id (void) const { return t_id; } std::string type_name (void) const { return t_name; } std::string class_name (void) const { return object.class_name (); } static int static_type_id (void) { return t_id; } static std::string static_type_name (void) { return t_name; } static std::string static_class_name (void) { return "<unknown>"; } static void register_type (octave::type_info&); private: octave::cdef_object object; static int t_id; static const std::string t_name; }; OCTINTERP_API void install_classdef (octave::interpreter& interp); class octave_classdef_meta : public octave_function { public: octave_classdef_meta (const octave::cdef_meta_object& obj) : object (obj) { } octave_classdef_meta (const octave_classdef_meta&) = delete; octave_classdef_meta& operator = (const octave_classdef_meta&) = delete; ~octave_classdef_meta (void) { object.meta_release (); } bool is_classdef_meta (void) const { return true; } bool is_package (void) const { return object.is_package(); } octave_function * function_value (bool = false) { return this; } // We don't need to override all three forms of subsref. The using // declaration will avoid warnings about partially-overloaded virtual // functions. using octave_function::subsref; octave_value_list subsref (const std::string& type, const std::list<octave_value_list>& idx, int nargout) { return object.meta_subsref (type, idx, nargout); } octave_value_list call (octave::tree_evaluator&, int nargout, const octave_value_list& args) { // Emulate ()-type meta subsref std::list<octave_value_list> idx (1, args); std::string type ("("); return subsref (type, idx, nargout); } bool accepts_postfix_index (char type) const { return object.meta_accepts_postfix_index (type); } bool is_classdef_constructor (const std::string& cname = "") const; private: octave::cdef_meta_object object; }; class octave_classdef_superclass_ref : public octave_function { public: octave_classdef_superclass_ref (void) = delete; octave_classdef_superclass_ref (const std::string& meth, const std::string& cls) : octave_function (), m_method_name (meth), m_class_name (cls) { } octave_classdef_superclass_ref (const octave_classdef_superclass_ref&) = delete; octave_classdef_superclass_ref& operator = (const octave_classdef_superclass_ref&) = delete; ~octave_classdef_superclass_ref (void) = default; bool is_classdef_superclass_ref (void) const { return true; } octave_function * function_value (bool = false) { return this; } octave_value_list call (octave::tree_evaluator& tw, int nargout, const octave_value_list& idx); private: bool is_constructed_object (octave::tree_evaluator& tw, const std::string& nm); private: std::string m_method_name; std::string m_class_name; }; #endif /* ;;; Local Variables: *** ;;; mode: C++ *** ;;; End: *** */