Mercurial > hg > octave-lyh
annotate src/ov-fcn-handle.h @ 9450:cf714e75c656
implement overloaded function handles
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Thu, 23 Jul 2009 14:44:30 +0200 |
| parents | d865363208d6 |
| children | d34baf412786 |
| rev | line source |
|---|---|
| 4343 | 1 /* |
| 2 | |
| 8920 | 3 Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 John W. Eaton |
| 4343 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 4343 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 4343 | 20 |
| 21 */ | |
| 22 | |
| 23 #if !defined (octave_fcn_handle_h) | |
| 24 #define octave_fcn_handle_h 1 | |
| 25 | |
|
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26 #include <iosfwd> |
| 4343 | 27 #include <string> |
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28 #include <memory> |
| 4343 | 29 |
| 30 #include "oct-alloc.h" | |
| 31 | |
| 32 #include "ov-base.h" | |
| 4654 | 33 #include "ov-base-mat.h" |
| 4343 | 34 #include "ov-fcn.h" |
| 4654 | 35 #include "ov-typeinfo.h" |
| 4343 | 36 |
| 37 // Function handles. | |
| 38 | |
| 4925 | 39 class |
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Export additional symbols: octave_fcn_inline, octave_fcn_handle, read_binary_data, save_binary_data.
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40 OCTINTERP_API |
| 4925 | 41 octave_fcn_handle : public octave_base_value |
| 4654 | 42 { |
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43 private: |
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44 |
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45 typedef std::map<std::string, octave_value> str_ov_map; |
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46 |
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47 octave_fcn_handle (const octave_value& f, const std::string& n, |
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48 str_ov_map *sdisp) |
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49 : fcn (f), nm (n), disp (sdisp) { } |
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50 |
| 4654 | 51 public: |
| 4930 | 52 octave_fcn_handle (void) |
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53 : fcn (), nm () { } |
| 4654 | 54 |
| 5007 | 55 octave_fcn_handle (const std::string& n) |
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56 : fcn (), nm (n) { } |
| 5007 | 57 |
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58 octave_fcn_handle (const octave_value& f, const std::string& n); |
| 4654 | 59 |
| 4967 | 60 octave_fcn_handle (const octave_fcn_handle& fh) |
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61 : octave_base_value (fh), fcn (fh.fcn), nm (fh.nm) |
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62 { |
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63 if (fh.disp.get ()) |
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64 disp.reset (new str_ov_map (*fh.disp)); |
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65 } |
| 4967 | 66 |
| 4654 | 67 ~octave_fcn_handle (void) { } |
| 68 | |
| 5759 | 69 octave_base_value *clone (void) const { return new octave_fcn_handle (*this); } |
| 70 octave_base_value *empty_clone (void) const { return new octave_fcn_handle (); } | |
| 4967 | 71 |
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72 octave_value subsref (const std::string& type, |
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73 const std::list<octave_value_list>& idx) |
| 4924 | 74 { |
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75 octave_value_list tmp = subsref (type, idx, 1); |
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76 return tmp.length () > 0 ? tmp(0) : octave_value (); |
| 4924 | 77 } |
| 78 | |
| 79 octave_value_list subsref (const std::string& type, | |
| 80 const std::list<octave_value_list>& idx, | |
| 81 int nargout); | |
| 82 | |
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83 octave_value_list |
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84 do_multi_index_op (int nargout, const octave_value_list& args); |
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85 |
| 4925 | 86 bool is_defined (void) const { return true; } |
| 4654 | 87 |
| 88 bool is_function_handle (void) const { return true; } | |
| 89 | |
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90 bool is_overloaded (void) const { return disp.get () && ! disp->empty (); } |
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91 |
| 5654 | 92 dim_vector dims (void) const { static dim_vector dv (1, 1); return dv; } |
| 93 | |
| 4930 | 94 octave_function *function_value (bool = false) |
| 95 { return fcn.function_value (); } | |
| 96 | |
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97 const octave_function *function_value (bool = false) const |
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98 { return fcn.function_value (); } |
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99 |
| 6625 | 100 octave_user_function *user_function_value (bool = false) |
| 101 { return fcn.user_function_value (); } | |
| 102 | |
| 4654 | 103 octave_fcn_handle *fcn_handle_value (bool = false) { return this; } |
| 104 | |
| 5007 | 105 octave_value fcn_val (void) const { return fcn; } |
| 106 | |
| 4933 | 107 std::string fcn_name (void) const { return nm; } |
| 4930 | 108 |
| 6974 | 109 bool save_ascii (std::ostream& os); |
| 4988 | 110 |
| 111 bool load_ascii (std::istream& is); | |
| 112 | |
| 113 bool save_binary (std::ostream& os, bool& save_as_floats); | |
| 114 | |
| 115 bool load_binary (std::istream& is, bool swap, | |
| 116 oct_mach_info::float_format fmt); | |
| 117 | |
| 118 #if defined (HAVE_HDF5) | |
| 119 bool save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats); | |
| 120 | |
| 121 bool load_hdf5 (hid_t loc_id, const char *name, bool have_h5giterate_bug); | |
| 122 #endif | |
| 123 | |
| 4654 | 124 void print (std::ostream& os, bool pr_as_read_syntax = false) const; |
| 125 | |
| 126 void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const; | |
| 127 | |
| 128 private: | |
| 4343 | 129 |
| 6625 | 130 bool set_fcn (const std::string &octaveroot, const std::string& fpath); |
| 131 | |
| 4612 | 132 DECLARE_OCTAVE_ALLOCATOR |
| 4343 | 133 |
| 4612 | 134 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
| 4925 | 135 |
| 4933 | 136 protected: |
| 4930 | 137 |
| 4925 | 138 // The function we are handling. |
| 4930 | 139 octave_value fcn; |
| 4925 | 140 |
| 141 // The name of the handle, including the "@". | |
| 142 std::string nm; | |
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143 |
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144 // A pointer to statical dispatch to standard classes. If null, we don't want |
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145 // to dispatch at all. |
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146 std::auto_ptr<str_ov_map> disp; |
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147 |
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148 friend octave_value make_fcn_handle (const std::string &); |
| 4343 | 149 }; |
| 150 | |
| 151 extern octave_value make_fcn_handle (const std::string& nm); | |
| 152 | |
| 153 #endif | |
| 154 | |
| 155 /* | |
| 156 ;;; Local Variables: *** | |
| 157 ;;; mode: C++ *** | |
| 158 ;;; End: *** | |
| 159 */ |