Mercurial > pymonkey
annotate undefined.c @ 57:a2b617731398
pymonkey.undefined now has a 'falsy' value.
author | Atul Varma <varmaa@toolness.com> |
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date | Fri, 10 Jul 2009 18:41:14 -0700 |
parents | bc4263c6ae82 |
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rev | line source |
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Added license blocks to all .c/.h files.
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1 /* ***** BEGIN LICENSE BLOCK ***** |
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2 * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
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3 * |
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4 * The contents of this file are subject to the Mozilla Public License Version |
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5 * 1.1 (the "License"); you may not use this file except in compliance with |
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6 * the License. You may obtain a copy of the License at |
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7 * http://www.mozilla.org/MPL/ |
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8 * |
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9 * Software distributed under the License is distributed on an "AS IS" basis, |
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10 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
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11 * for the specific language governing rights and limitations under the |
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12 * License. |
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13 * |
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14 * The Original Code is Pymonkey. |
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15 * |
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16 * The Initial Developer of the Original Code is Mozilla. |
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17 * Portions created by the Initial Developer are Copyright (C) 2007 |
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18 * the Initial Developer. All Rights Reserved. |
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19 * |
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20 * Contributor(s): |
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21 * Atul Varma <atul@mozilla.com> |
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22 * |
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23 * Alternatively, the contents of this file may be used under the terms of |
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24 * either the GNU General Public License Version 2 or later (the "GPL"), or |
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25 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
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26 * in which case the provisions of the GPL or the LGPL are applicable instead |
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27 * of those above. If you wish to allow use of your version of this file only |
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28 * under the terms of either the GPL or the LGPL, and not to allow others to |
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29 * use your version of this file under the terms of the MPL, indicate your |
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30 * decision by deleting the provisions above and replace them with the notice |
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31 * and other provisions required by the GPL or the LGPL. If you do not delete |
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32 * the provisions above, a recipient may use your version of this file under |
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33 * the terms of any one of the MPL, the GPL or the LGPL. |
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34 * |
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35 * ***** END LICENSE BLOCK ***** */ |
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36 |
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37 #include "undefined.h" |
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38 |
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39 static Py_ssize_t PYM_undefinedLength(PyObject *o) { |
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40 return 0; |
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41 }; |
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42 |
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43 static PyMappingMethods PYM_undefinedAsMapping = { |
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44 PYM_undefinedLength, /*mp_length*/ |
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45 0, /*mp_subscript*/ |
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46 0 /*mp_ass_subscript*/ |
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47 }; |
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48 |
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49 static PyObject *PYM_undefinedRepr(PyObject *o) { |
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50 return PyString_FromString("pymonkey.undefined"); |
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51 } |
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52 |
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53 // TODO: We should make this behave as much like JavaScript's |
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54 // "undefined" value as possible; e.g., its string value should |
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55 // be "undefined", the singleton should be falsy, etc. |
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56 PyTypeObject PYM_undefinedType = { |
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57 PyObject_HEAD_INIT(NULL) |
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58 0, /*ob_size*/ |
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59 "pymonkey.undefined", /*tp_name*/ |
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60 sizeof(PYM_undefinedObject), /*tp_basicsize*/ |
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61 0, /*tp_itemsize*/ |
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62 0, /*tp_dealloc*/ |
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63 0, /*tp_print*/ |
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64 0, /*tp_getattr*/ |
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65 0, /*tp_setattr*/ |
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66 0, /*tp_compare*/ |
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67 PYM_undefinedRepr, /*tp_repr*/ |
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68 0, /*tp_as_number*/ |
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69 0, /*tp_as_sequence*/ |
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70 &PYM_undefinedAsMapping, /*tp_as_mapping*/ |
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71 0, /*tp_hash */ |
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72 0, /*tp_call*/ |
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73 PYM_undefinedRepr, /*tp_str*/ |
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74 0, /*tp_getattro*/ |
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75 0, /*tp_setattro*/ |
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76 0, /*tp_as_buffer*/ |
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77 Py_TPFLAGS_DEFAULT, /*tp_flags*/ |
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78 /* tp_doc */ |
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79 "Pythonic equivalent of JavaScript's 'undefined' value", |
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80 }; |
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81 |
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82 PYM_undefinedObject *PYM_undefined; |