annotate __py_struct_from_dict__.cc @ 374:d362cdd1ddeb

pyobject: add conversion methods for single, intX, and uintX types * oct-py-types.cc, oct-py-types.h (pytave::extract_py_uint64): New function. * __py_struct_from_dict__.cc (F__py_uint64_scalar_value__): New function. (F__py_int64_scalar_value__): Simplify and clean up style. Add %!tests. * @pyobject/pyobject.m (pyobject.single, pyobject.int8, pyobject.int16, pyobject.int32, pyobject.uint8, pyobject.uint16, pyobject.uint32, pyobject.uint64): New conversion methods.
author Mike Miller <mtmiller@octave.org>
date Fri, 26 Aug 2016 18:51:42 -0700
parents 0e4097c66788
children d0a7f66393fc
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1 /*
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2
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3 Copyright (C) 2016 Mike Miller
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4
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5 This file is part of Pytave.
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6
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7 Pytave is free software: you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation, either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Pytave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Pytave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if defined (HAVE_CONFIG_H)
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24 # include <config.h>
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25 #endif
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26
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27 #include <Python.h>
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28 #include <octave/oct.h>
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29
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30 #define PYTAVE_DO_DECLARE_SYMBOL
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31 #include "arrayobjectdefs.h"
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32 #include "exceptions.h"
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33 #include "oct-py-types.h"
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34 #include "oct-py-util.h"
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35 #include "octave_to_python.h"
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36
373
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37 DEFUN_DLD (__py_class_name__, args, ,
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38 "-*- texinfo -*-\n\
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39 @deftypefn {} {} __py_class_name__ (@var{obj})\n\
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40 Return the name of the class of the Python object @var{obj}.\n\
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41 \n\
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42 This is a private internal function not intended for direct use.\n\
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43 @end deftypefn")
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44 {
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45 if (args.length () != 1)
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46 print_usage ();
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47
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48 if (! (args(0).is_object () && args(0).class_name () == "pyobject"))
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49 error ("__py_class_name__: argument must be a valid Python object");
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50
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51 Py_Initialize ();
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52
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53 PyObject *obj = pytave::pyobject_unwrap_object (args(0));
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54 std::string name = pytave::py_object_class_name (obj);
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55 Py_DECREF (obj);
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56
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57 return ovl (name);
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58 }
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59
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60 /*
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61 %!assert (__py_class_name__ (pyeval ("None")), "NoneType")
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62 %!assert (__py_class_name__ (pyeval ("0")), "int")
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63 %!assert (__py_class_name__ (pyeval ("'Octave'")), "str")
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64 %!assert (__py_class_name__ (pyeval ("[]")), "list")
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65 %!assert (__py_class_name__ (pyeval ("__import__('array').array('d')")), "array.array")
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66
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67 %!error __py_class_name__ ()
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68 %!error __py_class_name__ (1)
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69 %!error __py_class_name__ (1, 2)
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70 */
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71
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72 DEFUN_DLD (__py_int64_scalar_value__, args, nargout,
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73 "-*- texinfo -*-\n\
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74 @deftypefn {} {} __py_int64_scalar_value__ (@var{x})\n\
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75 Extract a scalar int64 value from the Python integer @var{x}.\n\
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76 \n\
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77 This is a private internal function not intended for direct use.\n\
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78 @end deftypefn")
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79 {
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80 if (args.length () != 1)
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81 print_usage ();
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82
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83 if (! (args(0).is_object () && args(0).class_name () == "pyobject"))
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84 error ("pyobject.int64: argument must be a Python object");
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85
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86 Py_Initialize ();
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87
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88 PyObject *obj = pytave::pyobject_unwrap_object (args(0));
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89 if (! obj)
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90 error ("pyobject.int64: argument must be a valid Python object");
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91
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92 octave_int64 retval;
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93
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94 try
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95 {
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96 retval = pytave::extract_py_int64 (obj);
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97 }
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98 catch (pytave::object_convert_exception const &)
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99 {
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100 error ("pyobject.int64: argument must be a Python int or long object");
356
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101 }
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102 catch (boost::python::error_already_set const &)
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103 {
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104 std::string message = pytave::fetch_exception_message ();
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105 error ("pyobject.int64: %s", message.c_str ());
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106 }
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107 Py_DECREF (obj);
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108
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109 return ovl (retval);
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110 }
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111
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112 /*
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113 %!assert (__py_int64_scalar_value__ (pyobject (pyeval ("0"))), int64 (0))
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114 %!assert (__py_int64_scalar_value__ (pyobject (pyeval ("2**62"))), int64 (2^62))
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115 %!assert (__py_int64_scalar_value__ (pyobject (pyeval ("-2**62"))), int64 (-2^62))
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116 %!assert (__py_int64_scalar_value__ (pyobject (pyeval ("2**128"))), intmax ("int64"))
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117 %!assert (__py_int64_scalar_value__ (pyobject (pyeval ("-2**128"))), intmin ("int64"))
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118
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119 %!error __py_int64_scalar_value__ ()
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120 %!error __py_int64_scalar_value__ (1)
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121 %!error __py_int64_scalar_value__ (pyeval ("None"))
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122 %!error __py_int64_scalar_value__ (1, 2)
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123 */
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124
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125 DEFUN_DLD (__py_uint64_scalar_value__, args, nargout,
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126 "-*- texinfo -*-\n\
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127 @deftypefn {} {} __py_uint64_scalar_value__ (@var{x})\n\
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128 Extract a scalar uint64 value from the Python integer @var{x}.\n\
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129 \n\
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130 This is a private internal function not intended for direct use.\n\
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131 @end deftypefn")
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132 {
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133 if (args.length () != 1)
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134 print_usage ();
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135
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136 if (! (args(0).is_object () && args(0).class_name () == "pyobject"))
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137 error ("pyobject.uint64: argument must be a Python object");
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138
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139 Py_Initialize ();
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140
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141 PyObject *obj = pytave::pyobject_unwrap_object (args(0));
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142 if (! obj)
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143 error ("pyobject.uint64: argument must be a valid Python object");
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144
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145 octave_uint64 retval;
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146
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147 try
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148 {
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149 retval = pytave::extract_py_uint64 (obj);
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150 }
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151 catch (pytave::object_convert_exception const &)
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152 {
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153 error ("pyobject.uint64: argument must be a Python int or long object");
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154 }
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155 catch (boost::python::error_already_set const &)
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156 {
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157 std::string message = pytave::fetch_exception_message ();
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158 error ("pyobject.uint64: %s", message.c_str ());
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159 }
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160 Py_DECREF (obj);
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161
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162 return ovl (retval);
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163 }
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164
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165 /*
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166 %!assert (__py_uint64_scalar_value__ (pyobject (pyeval ("0"))), uint64 (0))
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167 %!assert (__py_uint64_scalar_value__ (pyobject (pyeval ("2**62"))), uint64 (2^62))
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168 %!assert (__py_uint64_scalar_value__ (pyobject (pyeval ("2**128"))), intmax ("uint64"))
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169 %!assert (__py_uint64_scalar_value__ (pyobject (pyeval ("-2**128"))), intmin ("uint64"))
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170
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171 %!error __py_uint64_scalar_value__ ()
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172 %!error __py_uint64_scalar_value__ (1)
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173 %!error __py_uint64_scalar_value__ (pyeval ("None"))
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174 %!error __py_uint64_scalar_value__ (1, 2)
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175 */
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176
368
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177 DEFUN_DLD (__py_is_none__, args, nargout,
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178 "-*- texinfo -*-\n\
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179 @deftypefn {} {} __py_is_none__ (@var{x})\n\
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180 Check whether the Python object @var{obj} is the @code{None} object.\n\
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181 \n\
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182 This is a private internal function not intended for direct use.\n\
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diff changeset
183 @end deftypefn")
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184 {
4d54fb68de71 __py_is_none__: new compiled function to test whether an object is None
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185 if (args.length () != 1)
4d54fb68de71 __py_is_none__: new compiled function to test whether an object is None
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diff changeset
186 print_usage ();
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187
4d54fb68de71 __py_is_none__: new compiled function to test whether an object is None
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188 Py_Initialize ();
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189
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190 PyObject *obj = pytave::pyobject_unwrap_object (args(0));
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191
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192 bool retval = (obj && (obj == Py_None));
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193 Py_XDECREF (obj);
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194
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195 return ovl (retval);
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196 }
4d54fb68de71 __py_is_none__: new compiled function to test whether an object is None
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197
4d54fb68de71 __py_is_none__: new compiled function to test whether an object is None
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198 /*
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199 %!assert (__py_is_none__ (pyobject ()))
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200 %!assert (__py_is_none__ (pyeval ("None")))
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diff changeset
201 %!assert (! __py_is_none__ (1))
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diff changeset
202 %!assert (! __py_is_none__ ("None"))
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diff changeset
203 %!assert (! __py_is_none__ (pyobject (1)))
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204 %!assert (! __py_is_none__ (pyobject ("None")))
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diff changeset
205
4d54fb68de71 __py_is_none__: new compiled function to test whether an object is None
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206 %!error __py_is_none__ ()
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207 %!error __py_is_none__ (1, 2)
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diff changeset
208 */
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209
358
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
210 DEFUN_DLD (__py_isinstance__, args, nargout,
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
211 "-*- texinfo -*-\n\
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
212 @deftypefn {} {} __py_isinstance__ (@var{x})\n\
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diff changeset
213 Check whether the Python object @var{obj} is an instance of a Python type\n\
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diff changeset
214 specified by the string @var{type}.\n\
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
215 \n\
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
216 This is a private internal function not intended for direct use.\n\
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
217 @end deftypefn")
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
218 {
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
219 octave_value_list retval;
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
220
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
221 int nargin = args.length ();
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
222 if (nargin != 2)
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
223 {
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
224 print_usage ();
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
225 return retval;
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
226 }
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
227
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
228 if (! (args(0).is_object () && args(0).class_name () == "pyobject"))
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
229 error ("pyobject.isa: OBJ must be a Python object");
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
230
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
231 if (! args(1).is_string ())
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
232 error ("pyobject.isa: TYPE must be a string naming a Python type (py.*)");
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
233
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
234 std::string typestr = args(1).string_value ();
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
235 if (! ((typestr.size () > 3) && (typestr.compare (0, 3, "py.") == 0)))
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
236 error ("pyobject.isa: TYPE must be a string naming a Python type (py.*)");
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
237
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
238 typestr = typestr.substr (3);
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
239
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
240 Py_Initialize ();
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
241
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
242 try
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
243 {
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
244 // FIXME: PyObject *obj = look up stored pyobject reference (args(0));
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
245 boost::python::object arg;
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
246 pytave::octvalue_to_pyobj (arg, args(0));
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
247 PyObject *obj = arg.ptr ();
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
248
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
249 PyObject *type = pytave::py_find_type (typestr);
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
250 retval(0) = pytave::py_isinstance (obj, type);
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
251 Py_XDECREF (type);
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
252 }
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
253 catch (pytave::object_convert_exception const &)
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
254 {
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
255 error ("pyobject.isa: error in return value type conversion");
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
256 }
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
257 catch (boost::python::error_already_set const &)
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
258 {
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
259 std::string message = pytave::fetch_exception_message ();
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
260 error ("pyobject.isa: %s", message.c_str ());
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parents: 356
diff changeset
261 }
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diff changeset
262
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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parents: 356
diff changeset
263 return retval;
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Mike Miller <mtmiller@octave.org>
parents: 356
diff changeset
264 }
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parents: 356
diff changeset
265
362
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diff changeset
266 DEFUN_DLD (__py_objstore_del__, args, nargout,
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diff changeset
267 "-*- texinfo -*-\n\
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diff changeset
268 @deftypefn {} {} __py_objstore_del__ (@var{key})\n\
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diff changeset
269 Delete the Python object stored under @var{key} from the object store.\n\
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270 \n\
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diff changeset
271 This is a private internal function not intended for direct use.\n\
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diff changeset
272 @end deftypefn")
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diff changeset
273 {
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parents: 358
diff changeset
274 if (args.length () != 1)
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275 print_usage ();
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diff changeset
276
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277 Py_Initialize ();
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diff changeset
278 uint64_t key = args(0).xuint64_scalar_value ("__py_objstore_del__: KEY must be an integer");
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diff changeset
279 pytave::py_objstore_del (key);
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280
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diff changeset
281 return ovl ();
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282 }
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283
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284 DEFUN_DLD (__py_objstore_get__, args, nargout,
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diff changeset
285 "-*- texinfo -*-\n\
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diff changeset
286 @deftypefn {} {} __py_objstore_get__ (@var{key})\n\
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287 Get the Python object stored under @var{key} from the object store.\n\
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288 \n\
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289 This is a private internal function not intended for direct use.\n\
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290 @end deftypefn")
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291 {
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292 if (args.length () != 1)
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293 print_usage ();
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294
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295 Py_Initialize ();
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296 uint64_t key = args(0).xuint64_scalar_value ("__py_objstore_get__: KEY must be an integer");
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297 PyObject *obj = pytave::py_objstore_get (key);
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298
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299 if (! obj)
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300 error ("__py_objstore_get__: no existing Python object found for key %ju", key);
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301
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302 octave_value retval = pytave::pyobject_wrap_object (obj);
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303
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304 return ovl (retval);
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305 }
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306
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307 DEFUN_DLD (__py_objstore_put__, args, nargout,
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308 "-*- texinfo -*-\n\
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309 @deftypefn {} {} __py_objstore_put__ (@var{value})\n\
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310 Convert @var{value} to a Python value and store in the object store.\n\
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311 \n\
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diff changeset
312 This is a private internal function not intended for direct use.\n\
b0677c492655 Overhaul Python object storage and wrapping in pyobject
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diff changeset
313 @end deftypefn")
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314 {
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diff changeset
315 if (args.length () != 1)
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316 print_usage ();
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317
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318 Py_Initialize ();
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diff changeset
319 boost::python::numeric::array::set_module_and_type ("numpy", "ndarray");
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diff changeset
320 _import_array ();
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diff changeset
321 // FIXME: PyObject *obj = convert argument to Python (args(0));
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diff changeset
322 PyObject *obj = 0;
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diff changeset
323 try
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diff changeset
324 {
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diff changeset
325 boost::python::object arg;
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326 pytave::octvalue_to_pyobj (arg, args(0));
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327 obj = arg.ptr ();
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328 Py_INCREF (obj);
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329 }
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diff changeset
330 catch (pytave::value_convert_exception const &)
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diff changeset
331 {
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diff changeset
332 }
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diff changeset
333
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diff changeset
334 if (! obj)
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diff changeset
335 error ("__py_objstore_put__: VALUE must be convertible to a Python value");
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diff changeset
336
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diff changeset
337 uint64_t key = pytave::py_objstore_put (obj);
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338 Py_DECREF (obj);
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339
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diff changeset
340 return ovl (octave_uint64 (key));
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diff changeset
341 }
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diff changeset
342
365
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
343 DEFUN_DLD (__py_string_value__, args, nargout,
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
344 "-*- texinfo -*-\n\
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
345 @deftypefn {} {} __py_string_value__ (@var{obj})\n\
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346 Return the string value or representation of the Python object @var{obj}.\n\
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diff changeset
347 \n\
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diff changeset
348 This is a private internal function not intended for direct use.\n\
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
349 @end deftypefn")
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
350 {
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
351 if (args.length () != 1)
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
352 print_usage ();
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
353
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
354 if (! (args(0).is_object () && args(0).class_name () == "pyobject"))
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
355 error ("pyobject.char: argument must be a valid Python object");
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
356
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
357 Py_Initialize ();
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
358
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
359 PyObject *obj = pytave::pyobject_unwrap_object (args(0));
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diff changeset
360 if (! obj)
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
361 error ("pyobject.char: argument must be a valid Python object");
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
362
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
363 std::string str;
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
364
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
365 if (PyBytes_Check (obj) || PyUnicode_Check (obj))
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
366 str = pytave::extract_py_str (obj);
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
367 else if (Py_TYPE (obj)->tp_str != NULL)
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
368 {
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
369 PyObject *s = PyObject_Str (obj);
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diff changeset
370 str = pytave::extract_py_str (s);
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diff changeset
371 Py_DECREF (s);
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
372 }
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
373 else
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
374 {
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
375 Py_DECREF (obj);
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
376 error ("pyobject.char: cannot convert Python object to string");
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
377 }
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
378
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
379 Py_DECREF (obj);
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
380
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
381 return ovl (str);
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
382 }
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
383
345
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
384 DEFUN_DLD (__py_struct_from_dict__, args, nargout,
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
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parents:
diff changeset
385 "-*- texinfo -*-\n\
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
386 @deftypefn {} {} __py_struct_from_dict__ (@var{dict})\n\
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
387 Extract a scalar struct from the Python dict @var{dict}.\n\
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
388 \n\
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
389 This is a private internal function not intended for direct use.\n\
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
390 @end deftypefn")
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
391 {
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
392 octave_value_list retval;
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
393 std::string id;
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
394
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
395 int nargin = args.length ();
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
396
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
397 if (nargin != 1)
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
398 {
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
399 print_usage ();
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
400 return retval;
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
401 }
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
402
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
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403 if (! (args(0).is_object () && args(0).class_name () == "pyobject"))
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404 error ("pyobject.struct: argument must be a Python object");
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405
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406 Py_Initialize ();
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407
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408 try
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409 {
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410 // FIXME: PyObject *obj = look up stored pyobject reference (args(0));
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411 boost::python::object arg;
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412 pytave::octvalue_to_pyobj (arg, args(0));
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413 PyObject *obj = arg.ptr ();
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414
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415 retval(0) = pytave::extract_py_scalar_map (obj);
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416 }
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417 catch (pytave::object_convert_exception const &)
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418 {
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419 error ("pyobject.struct: error in return value type conversion");
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420 }
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421 catch (boost::python::error_already_set const &)
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422 {
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423 std::string message = pytave::fetch_exception_message ();
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424 error ("pyobject.struct: %s", message.c_str ());
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425 }
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426
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427 return retval;
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428 }
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429
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430 /*
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431 ## No test needed for internal helper function.
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432 %!assert (1)
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433 */