Mercurial > hg > octave-nkf
annotate src/ov-fcn-handle.h @ 10321:97b4bd6f0925
partially rewrite function handles
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Sat, 13 Feb 2010 08:17:21 +0100 |
| parents | f3b65e1ae355 |
| children | 21551cc88061 |
| 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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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 |
| 4654 | 47 public: |
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48 |
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49 static const std::string anonymous; |
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50 |
| 4930 | 51 octave_fcn_handle (void) |
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52 : fcn (), nm (), has_overloads (false) { } |
| 4654 | 53 |
| 5007 | 54 octave_fcn_handle (const std::string& n) |
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55 : fcn (), nm (n), has_overloads (false) { } |
| 5007 | 56 |
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57 octave_fcn_handle (const octave_value& f, const std::string& n = anonymous); |
| 4654 | 58 |
| 4967 | 59 octave_fcn_handle (const octave_fcn_handle& fh) |
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60 : octave_base_value (fh), fcn (fh.fcn), nm (fh.nm), |
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61 has_overloads (fh.has_overloads) |
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62 { |
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63 for (int i = 0; i < btyp_num_types; i++) |
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64 builtin_overloads[i] = fh.builtin_overloads[i]; |
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65 |
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66 overloads = fh.overloads; |
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67 } |
| 4967 | 68 |
| 4654 | 69 ~octave_fcn_handle (void) { } |
| 70 | |
| 5759 | 71 octave_base_value *clone (void) const { return new octave_fcn_handle (*this); } |
| 72 octave_base_value *empty_clone (void) const { return new octave_fcn_handle (); } | |
| 4967 | 73 |
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74 octave_value subsref (const std::string& type, |
| 10313 | 75 const std::list<octave_value_list>& idx) |
| 4924 | 76 { |
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77 octave_value_list tmp = subsref (type, idx, 1); |
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78 return tmp.length () > 0 ? tmp(0) : octave_value (); |
| 4924 | 79 } |
| 80 | |
| 81 octave_value_list subsref (const std::string& type, | |
| 10313 | 82 const std::list<octave_value_list>& idx, |
| 83 int nargout); | |
| 4924 | 84 |
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85 octave_value_list |
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86 do_multi_index_op (int nargout, const octave_value_list& args); |
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87 |
| 4925 | 88 bool is_defined (void) const { return true; } |
| 4654 | 89 |
| 90 bool is_function_handle (void) const { return true; } | |
| 91 | |
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92 builtin_type_t builtin_type (void) const { return btyp_func_handle; } |
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93 |
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94 bool is_overloaded (void) const { return has_overloads; } |
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95 |
| 5654 | 96 dim_vector dims (void) const { static dim_vector dv (1, 1); return dv; } |
| 97 | |
| 4930 | 98 octave_function *function_value (bool = false) |
| 99 { return fcn.function_value (); } | |
| 100 | |
| 6625 | 101 octave_user_function *user_function_value (bool = false) |
| 102 { return fcn.user_function_value (); } | |
| 103 | |
| 4654 | 104 octave_fcn_handle *fcn_handle_value (bool = false) { return this; } |
| 105 | |
| 5007 | 106 octave_value fcn_val (void) const { return fcn; } |
| 107 | |
| 4933 | 108 std::string fcn_name (void) const { return nm; } |
| 4930 | 109 |
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110 void set_overload (builtin_type_t btyp, const octave_value& ov_fcn) |
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111 { |
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112 if (btyp != btyp_unknown) |
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113 { |
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114 has_overloads = true; |
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115 builtin_overloads[btyp] = ov_fcn; |
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116 } |
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117 |
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118 } |
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119 |
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120 void set_overload (const std::string& dispatch_type, const octave_value& ov_fcn) |
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121 { |
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122 has_overloads = true; |
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123 overloads[dispatch_type] = ov_fcn; |
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124 } |
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125 |
| 6974 | 126 bool save_ascii (std::ostream& os); |
| 4988 | 127 |
| 128 bool load_ascii (std::istream& is); | |
| 129 | |
| 130 bool save_binary (std::ostream& os, bool& save_as_floats); | |
| 131 | |
| 132 bool load_binary (std::istream& is, bool swap, | |
| 10313 | 133 oct_mach_info::float_format fmt); |
| 4988 | 134 |
| 135 #if defined (HAVE_HDF5) | |
| 136 bool save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats); | |
| 137 | |
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138 bool load_hdf5 (hid_t loc_id, const char *name); |
| 4988 | 139 #endif |
| 140 | |
| 4654 | 141 void print (std::ostream& os, bool pr_as_read_syntax = false) const; |
| 142 | |
| 143 void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const; | |
| 144 | |
| 145 private: | |
| 4343 | 146 |
| 6625 | 147 bool set_fcn (const std::string &octaveroot, const std::string& fpath); |
| 148 | |
| 4612 | 149 DECLARE_OCTAVE_ALLOCATOR |
| 4343 | 150 |
| 4612 | 151 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
| 4925 | 152 |
| 4933 | 153 protected: |
| 4930 | 154 |
| 4925 | 155 // The function we are handling. |
| 4930 | 156 octave_value fcn; |
| 4925 | 157 |
| 158 // The name of the handle, including the "@". | |
| 159 std::string nm; | |
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160 |
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161 // Whether the function is overloaded at all. |
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162 bool has_overloads; |
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163 |
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164 // Overloads for builtin types. We use array to make lookup faster. |
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165 octave_value builtin_overloads[btyp_num_types]; |
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166 |
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167 // Overloads for other classes. |
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168 str_ov_map overloads; |
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169 |
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170 friend octave_value make_fcn_handle (const std::string &, bool); |
| 4343 | 171 }; |
| 172 | |
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173 extern octave_value make_fcn_handle (const std::string& nm, |
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174 bool local_funcs = true); |
| 4343 | 175 |
| 176 #endif |