Mercurial > pytave
annotate __py_struct_from_dict__.cc @ 372:b20b8cf8ad07
Make an internal function to return the name of the builtins module
* oct-py-util.cc (pytave::py_builtins_module_name): New function.
(pytave::py_builtins_module): Use it.
author | Mike Miller <mtmiller@octave.org> |
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date | Fri, 26 Aug 2016 13:59:18 -0700 |
parents | 4d54fb68de71 |
children | 0e4097c66788 |
rev | line source |
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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" |
358
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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 |
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37 DEFUN_DLD (__py_int64_scalar_value__, args, nargout, |
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38 "-*- texinfo -*-\n\ |
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39 @deftypefn {} {} __py_int64_scalar_value__ (@var{x})\n\ |
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40 Extract a scalar int64 value from the Python integer @var{x}.\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 octave_value_list retval; |
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46 |
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47 int nargin = args.length (); |
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48 if (nargin != 1) |
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49 { |
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50 print_usage (); |
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51 return retval; |
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52 } |
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53 |
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54 if (! (args(0).is_object () && args(0).class_name () == "pyobject")) |
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55 error ("pyobject.int64: argument must be a Python object"); |
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56 |
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57 Py_Initialize (); |
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58 |
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59 try |
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60 { |
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61 // FIXME: PyObject *obj = look up stored pyobject reference (args(0)); |
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62 boost::python::object arg; |
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63 pytave::octvalue_to_pyobj (arg, args(0)); |
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64 PyObject *obj = arg.ptr (); |
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65 |
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66 retval(0) = octave_int64 (pytave::extract_py_int64 (obj)); |
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67 } |
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68 catch (pytave::object_convert_exception const &) |
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69 { |
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70 error ("pyobject.int64: error in return value type conversion"); |
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71 } |
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72 catch (boost::python::error_already_set const &) |
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73 { |
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74 std::string message = pytave::fetch_exception_message (); |
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75 error ("pyobject.int64: %s", message.c_str ()); |
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76 } |
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77 |
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78 return retval; |
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79 } |
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80 |
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81 DEFUN_DLD (__py_is_none__, args, nargout, |
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82 "-*- texinfo -*-\n\ |
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83 @deftypefn {} {} __py_is_none__ (@var{x})\n\ |
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84 Check whether the Python object @var{obj} is the @code{None} object.\n\ |
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85 \n\ |
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86 This is a private internal function not intended for direct use.\n\ |
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87 @end deftypefn") |
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88 { |
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89 if (args.length () != 1) |
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90 print_usage (); |
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91 |
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92 Py_Initialize (); |
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93 |
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94 PyObject *obj = pytave::pyobject_unwrap_object (args(0)); |
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95 |
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96 bool retval = (obj && (obj == Py_None)); |
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97 Py_XDECREF (obj); |
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98 |
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99 return ovl (retval); |
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100 } |
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101 |
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102 /* |
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103 %!assert (__py_is_none__ (pyobject ())) |
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104 %!assert (__py_is_none__ (pyeval ("None"))) |
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105 %!assert (! __py_is_none__ (1)) |
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106 %!assert (! __py_is_none__ ("None")) |
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107 %!assert (! __py_is_none__ (pyobject (1))) |
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108 %!assert (! __py_is_none__ (pyobject ("None"))) |
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109 |
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110 %!error __py_is_none__ () |
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111 %!error __py_is_none__ (1, 2) |
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112 */ |
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113 |
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114 DEFUN_DLD (__py_isinstance__, args, nargout, |
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115 "-*- texinfo -*-\n\ |
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116 @deftypefn {} {} __py_isinstance__ (@var{x})\n\ |
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117 Check whether the Python object @var{obj} is an instance of a Python type\n\ |
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118 specified by the string @var{type}.\n\ |
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119 \n\ |
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120 This is a private internal function not intended for direct use.\n\ |
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121 @end deftypefn") |
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122 { |
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123 octave_value_list retval; |
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124 |
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125 int nargin = args.length (); |
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126 if (nargin != 2) |
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127 { |
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128 print_usage (); |
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129 return retval; |
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130 } |
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131 |
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132 if (! (args(0).is_object () && args(0).class_name () == "pyobject")) |
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133 error ("pyobject.isa: OBJ must be a Python object"); |
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134 |
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135 if (! args(1).is_string ()) |
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136 error ("pyobject.isa: TYPE must be a string naming a Python type (py.*)"); |
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137 |
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138 std::string typestr = args(1).string_value (); |
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139 if (! ((typestr.size () > 3) && (typestr.compare (0, 3, "py.") == 0))) |
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140 error ("pyobject.isa: TYPE must be a string naming a Python type (py.*)"); |
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141 |
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142 typestr = typestr.substr (3); |
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143 |
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144 Py_Initialize (); |
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145 |
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146 try |
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147 { |
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148 // FIXME: PyObject *obj = look up stored pyobject reference (args(0)); |
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149 boost::python::object arg; |
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150 pytave::octvalue_to_pyobj (arg, args(0)); |
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151 PyObject *obj = arg.ptr (); |
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152 |
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153 PyObject *type = pytave::py_find_type (typestr); |
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154 retval(0) = pytave::py_isinstance (obj, type); |
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155 Py_XDECREF (type); |
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156 } |
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157 catch (pytave::object_convert_exception const &) |
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158 { |
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159 error ("pyobject.isa: error in return value type conversion"); |
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160 } |
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161 catch (boost::python::error_already_set const &) |
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162 { |
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163 std::string message = pytave::fetch_exception_message (); |
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164 error ("pyobject.isa: %s", message.c_str ()); |
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165 } |
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166 |
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167 return retval; |
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168 } |
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169 |
362
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170 DEFUN_DLD (__py_objstore_del__, args, nargout, |
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171 "-*- texinfo -*-\n\ |
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172 @deftypefn {} {} __py_objstore_del__ (@var{key})\n\ |
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173 Delete the Python object stored under @var{key} from the object store.\n\ |
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174 \n\ |
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175 This is a private internal function not intended for direct use.\n\ |
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176 @end deftypefn") |
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177 { |
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178 if (args.length () != 1) |
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179 print_usage (); |
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180 |
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181 Py_Initialize (); |
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182 uint64_t key = args(0).xuint64_scalar_value ("__py_objstore_del__: KEY must be an integer"); |
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183 pytave::py_objstore_del (key); |
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184 |
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185 return ovl (); |
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186 } |
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187 |
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188 DEFUN_DLD (__py_objstore_get__, args, nargout, |
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189 "-*- texinfo -*-\n\ |
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190 @deftypefn {} {} __py_objstore_get__ (@var{key})\n\ |
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191 Get the Python object stored under @var{key} from the object store.\n\ |
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192 \n\ |
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193 This is a private internal function not intended for direct use.\n\ |
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194 @end deftypefn") |
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195 { |
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196 if (args.length () != 1) |
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197 print_usage (); |
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198 |
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199 Py_Initialize (); |
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200 uint64_t key = args(0).xuint64_scalar_value ("__py_objstore_get__: KEY must be an integer"); |
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201 PyObject *obj = pytave::py_objstore_get (key); |
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202 |
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203 if (! obj) |
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204 error ("__py_objstore_get__: no existing Python object found for key %ju", key); |
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205 |
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206 octave_value retval = pytave::pyobject_wrap_object (obj); |
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207 |
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208 return ovl (retval); |
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209 } |
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210 |
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211 DEFUN_DLD (__py_objstore_put__, args, nargout, |
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212 "-*- texinfo -*-\n\ |
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213 @deftypefn {} {} __py_objstore_put__ (@var{value})\n\ |
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214 Convert @var{value} to a Python value and store in the object store.\n\ |
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215 \n\ |
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216 This is a private internal function not intended for direct use.\n\ |
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217 @end deftypefn") |
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218 { |
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219 if (args.length () != 1) |
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220 print_usage (); |
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221 |
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222 Py_Initialize (); |
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223 boost::python::numeric::array::set_module_and_type ("numpy", "ndarray"); |
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224 _import_array (); |
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225 // FIXME: PyObject *obj = convert argument to Python (args(0)); |
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226 PyObject *obj = 0; |
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227 try |
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228 { |
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229 boost::python::object arg; |
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230 pytave::octvalue_to_pyobj (arg, args(0)); |
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231 obj = arg.ptr (); |
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232 Py_INCREF (obj); |
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233 } |
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234 catch (pytave::value_convert_exception const &) |
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235 { |
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236 } |
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237 |
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238 if (! obj) |
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239 error ("__py_objstore_put__: VALUE must be convertible to a Python value"); |
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240 |
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241 uint64_t key = pytave::py_objstore_put (obj); |
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242 Py_DECREF (obj); |
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243 |
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244 return ovl (octave_uint64 (key)); |
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245 } |
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246 |
365
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247 DEFUN_DLD (__py_string_value__, args, nargout, |
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248 "-*- texinfo -*-\n\ |
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249 @deftypefn {} {} __py_string_value__ (@var{obj})\n\ |
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250 Return the string value or representation of the Python object @var{obj}.\n\ |
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251 \n\ |
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252 This is a private internal function not intended for direct use.\n\ |
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253 @end deftypefn") |
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254 { |
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255 if (args.length () != 1) |
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256 print_usage (); |
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257 |
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258 if (! (args(0).is_object () && args(0).class_name () == "pyobject")) |
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259 error ("pyobject.char: argument must be a valid Python object"); |
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260 |
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261 Py_Initialize (); |
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262 |
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263 PyObject *obj = pytave::pyobject_unwrap_object (args(0)); |
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264 if (! obj) |
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265 error ("pyobject.char: argument must be a valid Python object"); |
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266 |
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267 std::string str; |
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268 |
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269 if (PyBytes_Check (obj) || PyUnicode_Check (obj)) |
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270 str = pytave::extract_py_str (obj); |
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271 else if (Py_TYPE (obj)->tp_str != NULL) |
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272 { |
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273 PyObject *s = PyObject_Str (obj); |
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274 str = pytave::extract_py_str (s); |
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275 Py_DECREF (s); |
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276 } |
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277 else |
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278 { |
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279 Py_DECREF (obj); |
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280 error ("pyobject.char: cannot convert Python object to string"); |
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281 } |
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282 |
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283 Py_DECREF (obj); |
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284 |
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285 return ovl (str); |
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286 } |
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287 |
345
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288 DEFUN_DLD (__py_struct_from_dict__, args, nargout, |
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289 "-*- texinfo -*-\n\ |
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290 @deftypefn {} {} __py_struct_from_dict__ (@var{dict})\n\ |
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291 Extract a scalar struct from the Python dict @var{dict}.\n\ |
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292 \n\ |
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293 This is a private internal function not intended for direct use.\n\ |
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294 @end deftypefn") |
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295 { |
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296 octave_value_list retval; |
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297 std::string id; |
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298 |
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299 int nargin = args.length (); |
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300 |
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301 if (nargin != 1) |
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302 { |
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303 print_usage (); |
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304 return retval; |
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305 } |
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306 |
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307 if (! (args(0).is_object () && args(0).class_name () == "pyobject")) |
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308 error ("pyobject.struct: argument must be a Python object"); |
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309 |
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310 Py_Initialize (); |
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311 |
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312 try |
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313 { |
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314 // FIXME: PyObject *obj = look up stored pyobject reference (args(0)); |
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315 boost::python::object arg; |
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316 pytave::octvalue_to_pyobj (arg, args(0)); |
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317 PyObject *obj = arg.ptr (); |
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318 |
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319 retval(0) = pytave::extract_py_scalar_map (obj); |
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320 } |
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321 catch (pytave::object_convert_exception const &) |
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322 { |
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323 error ("pyobject.struct: error in return value type conversion"); |
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324 } |
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325 catch (boost::python::error_already_set const &) |
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326 { |
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327 std::string message = pytave::fetch_exception_message (); |
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328 error ("pyobject.struct: %s", message.c_str ()); |
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329 } |
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330 |
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331 return retval; |
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332 } |
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333 |
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334 /* |
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335 ## No test needed for internal helper function. |
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336 %!assert (1) |
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337 */ |