Mercurial > pytave
annotate oct-py-eval.cc @ 423:6b9de18b4bdd
Eliminate remaining custom exception handling in favor of Octave errors
* oct-py-error.cc, oct-py-error.h (pytave::error_python_exception): New function
to generate an Octave error from an active Python error condition, based on
pytave::fetch_exception_message.
* oct-py-eval.cc (pytave::py_call_function, pytave::py_run_string_safe): Use it.
* oct-py-types.cc (pytave::make_py_dict): Likewise.
* oct-py-util.cc (pytave::py_objstore): Likewise.
* pycall.cc (Fpycall): Remove exception handling logic.
* pyeval.cc (Fpyeval): Likewise.
* pyexec.cc (Fpyexec): Likewise.
* exceptions.cc, exceptions.h: Delete.
* Makefile.am (COMMON_SOURCE_FILES, PYTAVE_HEADER_FILES): Remove them.
author | Mike Miller <mtmiller@octave.org> |
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date | Thu, 04 May 2017 21:15:07 -0700 |
parents | 24555fba9964 |
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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 <string> |
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29 #include <octave/ov.h> |
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30 #include <octave/ovl.h> |
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31 |
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32 #include "oct-py-error.h" |
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33 #include "oct-py-eval.h" |
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34 #include "oct-py-object.h" |
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35 #include "oct-py-util.h" |
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36 #include "oct-py-types.h" |
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37 |
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38 namespace pytave |
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39 { |
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40 |
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41 PyObject * |
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42 py_call_function (const std::string& func, const octave_value_list& args) |
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43 { |
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44 python_object func_obj = py_find_function (func); |
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45 python_object retval = py_call_function (func_obj, args); |
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46 return retval.release (); |
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47 } |
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48 |
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49 PyObject * |
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50 py_call_function (const std::string& func, PyObject *args, PyObject *kwargs) |
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51 { |
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52 python_object func_obj = py_find_function (func); |
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53 python_object retval = py_call_function (func_obj, args, kwargs); |
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54 return retval.release (); |
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55 } |
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56 |
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57 PyObject * |
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58 py_call_function (PyObject *callable, const octave_value_list& args) |
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59 { |
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60 python_object kwargs; |
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61 python_object args_list = PyList_New (0); |
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62 if (! args_list) |
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63 octave_throw_bad_alloc (); |
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64 |
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65 for (int i = 0; i < args.length (); ++i) |
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66 { |
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67 python_object obj = py_implicitly_convert_argument (args(i)); |
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68 |
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69 if (pytave::is_py_kwargs_argument (obj)) |
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70 kwargs = pytave::update_py_dict (kwargs, obj); |
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71 else |
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72 PyList_Append (args_list, obj.release ()); |
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73 } |
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74 |
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75 python_object args_tuple = PyList_AsTuple (args_list); |
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76 |
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77 python_object retval = py_call_function (callable, args_tuple, kwargs); |
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78 |
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79 return retval.release (); |
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80 } |
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81 |
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82 PyObject * |
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83 py_call_function (PyObject *callable, PyObject *args, PyObject *kwargs) |
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84 { |
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85 python_object retval = PyEval_CallObjectWithKeywords (callable, args, kwargs); |
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86 if (! retval) |
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87 error_python_exception (); |
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88 |
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89 return retval.release (); |
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90 } |
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91 |
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92 PyObject * |
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93 py_run_string_safe (const std::string& expr, int start, PyObject *globals, |
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94 PyObject *locals) |
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95 { |
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96 bool alloc = false; |
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97 |
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98 if (! globals || (globals == Py_None)) |
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99 { |
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100 python_object main = py_import_module ("__main__"); |
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101 globals = PyModule_GetDict (main); |
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102 if (! globals) |
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103 { |
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104 globals = PyDict_New (); |
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105 alloc = true; |
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106 } |
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107 } |
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108 |
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109 if (! locals || (locals == Py_None)) |
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110 locals = globals; |
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111 |
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112 // Evaluate all expressions under "from __future__ import print_function" |
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113 PyCompilerFlags flags { CO_FUTURE_PRINT_FUNCTION }; |
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114 |
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115 python_object retval = PyRun_StringFlags (expr.c_str (), start, globals, locals, |
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116 &flags); |
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117 |
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118 if (alloc) |
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119 Py_DECREF (globals); |
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120 |
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121 if (! retval) |
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122 error_python_exception (); |
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123 |
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124 return retval.release (); |
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125 } |
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126 |
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127 PyObject * |
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128 py_eval_string (const std::string& expr, PyObject *globals, PyObject *locals) |
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129 { |
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130 return py_run_string_safe (expr, Py_eval_input, globals, locals); |
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131 } |
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132 |
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133 PyObject * |
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134 py_exec_string (const std::string& expr, PyObject *globals, PyObject *locals) |
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135 { |
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136 return py_run_string_safe (expr, Py_file_input, globals, locals); |
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137 } |
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138 |
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139 } |