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annotate Python/getargs.c @ 70889:2d62ee4e7d98

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use a invalid name for the __class__ closure for super() (closes #12370) This prevents the assignment of __class__ in the class body from breaking super. (Although a determined person could do locals()["@__class__"] = 4)
author Benjamin Peterson <benjamin@python.org>
date Sun, 19 Jun 2011 19:42:22 -0500
parents 4c2135930882
children 536fccc75f5a
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8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
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1
8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
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2 /* New getargs implementation */
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3
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4 #include "Python.h"
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6 #include <ctype.h>
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9 #ifdef __cplusplus
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10 extern "C" {
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11 #endif
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12 int PyArg_Parse(PyObject *, const char *, ...);
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13 int PyArg_ParseTuple(PyObject *, const char *, ...);
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14 int PyArg_VaParse(PyObject *, const char *, va_list);
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16 int PyArg_ParseTupleAndKeywords(PyObject *, PyObject *,
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17 const char *, char **, ...);
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18 int PyArg_VaParseTupleAndKeywords(PyObject *, PyObject *,
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19 const char *, char **, va_list);
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21 #ifdef HAVE_DECLSPEC_DLL
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22 /* Export functions */
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23 PyAPI_FUNC(int) _PyArg_Parse_SizeT(PyObject *, char *, ...);
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24 PyAPI_FUNC(int) _PyArg_ParseTuple_SizeT(PyObject *, char *, ...);
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25 PyAPI_FUNC(int) _PyArg_ParseTupleAndKeywords_SizeT(PyObject *, PyObject *,
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26 const char *, char **, ...);
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27 PyAPI_FUNC(PyObject *) _Py_BuildValue_SizeT(const char *, ...);
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28 PyAPI_FUNC(int) _PyArg_VaParse_SizeT(PyObject *, char *, va_list);
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29 PyAPI_FUNC(int) _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *, PyObject *,
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30 const char *, char **, va_list);
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31 #endif
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32
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33 #define FLAG_COMPAT 1
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34 #define FLAG_SIZE_T 2
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37 /* Forward */
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38 static int vgetargs1(PyObject *, const char *, va_list *, int);
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39 static void seterror(int, const char *, int *, const char *, const char *);
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40 static char *convertitem(PyObject *, const char **, va_list *, int, int *,
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41 char *, size_t, PyObject **);
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42 static char *converttuple(PyObject *, const char **, va_list *, int,
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43 int *, char *, size_t, int, PyObject **);
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44 static char *convertsimple(PyObject *, const char **, va_list *, int, char *,
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45 size_t, PyObject **);
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46 static Py_ssize_t convertbuffer(PyObject *, void **p, char **);
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47 static int getbuffer(PyObject *, Py_buffer *, char**);
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49 static int vgetargskeywords(PyObject *, PyObject *,
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50 const char *, char **, va_list *, int);
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51 static char *skipitem(const char **, va_list *, int);
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52
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53 int
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54 PyArg_Parse(PyObject *args, const char *format, ...)
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55 {
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56 int retval;
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57 va_list va;
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58
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59 va_start(va, format);
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60 retval = vgetargs1(args, format, &va, FLAG_COMPAT);
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61 va_end(va);
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62 return retval;
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63 }
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64
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65 int
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66 _PyArg_Parse_SizeT(PyObject *args, char *format, ...)
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67 {
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68 int retval;
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69 va_list va;
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70
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71 va_start(va, format);
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72 retval = vgetargs1(args, format, &va, FLAG_COMPAT|FLAG_SIZE_T);
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73 va_end(va);
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74 return retval;
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75 }
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78 int
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79 PyArg_ParseTuple(PyObject *args, const char *format, ...)
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80 {
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81 int retval;
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82 va_list va;
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83
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84 va_start(va, format);
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85 retval = vgetargs1(args, format, &va, 0);
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86 va_end(va);
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87 return retval;
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88 }
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90 int
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91 _PyArg_ParseTuple_SizeT(PyObject *args, char *format, ...)
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92 {
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93 int retval;
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94 va_list va;
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95
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96 va_start(va, format);
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97 retval = vgetargs1(args, format, &va, FLAG_SIZE_T);
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98 va_end(va);
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99 return retval;
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100 }
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103 int
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104 PyArg_VaParse(PyObject *args, const char *format, va_list va)
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105 {
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106 va_list lva;
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108 Py_VA_COPY(lva, va);
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109
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110 return vgetargs1(args, format, &lva, 0);
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111 }
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112
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113 int
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114 _PyArg_VaParse_SizeT(PyObject *args, char *format, va_list va)
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115 {
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116 va_list lva;
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117
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118 Py_VA_COPY(lva, va);
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119
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120 return vgetargs1(args, format, &lva, FLAG_SIZE_T);
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121 }
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123
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124 /* Handle cleanup of allocated memory in case of exception */
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125
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126 #define GETARGS_CAPSULE_NAME_CLEANUP_PTR "getargs.cleanup_ptr"
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127 #define GETARGS_CAPSULE_NAME_CLEANUP_BUFFER "getargs.cleanup_buffer"
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128 #define GETARGS_CAPSULE_NAME_CLEANUP_CONVERT "getargs.cleanup_convert"
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129
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130 static void
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131 cleanup_ptr(PyObject *self)
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132 {
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133 void *ptr = PyCapsule_GetPointer(self, GETARGS_CAPSULE_NAME_CLEANUP_PTR);
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134 if (ptr) {
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135 PyMem_FREE(ptr);
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136 }
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137 }
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138
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139 static void
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140 cleanup_buffer(PyObject *self)
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141 {
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142 Py_buffer *ptr = (Py_buffer *)PyCapsule_GetPointer(self, GETARGS_CAPSULE_NAME_CLEANUP_BUFFER);
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143 if (ptr) {
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144 PyBuffer_Release(ptr);
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145 }
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146 }
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147
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148 static int
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149 addcleanup(void *ptr, PyObject **freelist, int is_buffer)
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150 {
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151 PyObject *cobj;
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152 const char *name;
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153 PyCapsule_Destructor destr;
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154
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155 if (is_buffer) {
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156 destr = cleanup_buffer;
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157 name = GETARGS_CAPSULE_NAME_CLEANUP_BUFFER;
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158 } else {
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159 destr = cleanup_ptr;
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160 name = GETARGS_CAPSULE_NAME_CLEANUP_PTR;
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161 }
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162
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163 if (!*freelist) {
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164 *freelist = PyList_New(0);
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165 if (!*freelist) {
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166 destr(ptr);
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167 return -1;
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168 }
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169 }
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170
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171 cobj = PyCapsule_New(ptr, name, destr);
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172 if (!cobj) {
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173 destr(ptr);
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174 return -1;
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175 }
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176 if (PyList_Append(*freelist, cobj)) {
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177 Py_DECREF(cobj);
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178 return -1;
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179 }
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180 Py_DECREF(cobj);
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181 return 0;
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182 }
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183
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184 static void
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185 cleanup_convert(PyObject *self)
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186 {
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187 typedef int (*destr_t)(PyObject *, void *);
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188 destr_t destr = (destr_t)PyCapsule_GetContext(self);
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189 void *ptr = PyCapsule_GetPointer(self,
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190 GETARGS_CAPSULE_NAME_CLEANUP_CONVERT);
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191 if (ptr && destr)
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192 destr(NULL, ptr);
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193 }
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194
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195 static int
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196 addcleanup_convert(void *ptr, PyObject **freelist, int (*destr)(PyObject*,void*))
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197 {
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198 PyObject *cobj;
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199 if (!*freelist) {
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200 *freelist = PyList_New(0);
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201 if (!*freelist) {
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202 destr(NULL, ptr);
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203 return -1;
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204 }
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205 }
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206 cobj = PyCapsule_New(ptr, GETARGS_CAPSULE_NAME_CLEANUP_CONVERT,
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207 cleanup_convert);
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208 if (!cobj) {
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209 destr(NULL, ptr);
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210 return -1;
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211 }
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212 if (PyCapsule_SetContext(cobj, destr) == -1) {
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213 /* This really should not happen. */
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214 Py_FatalError("capsule refused setting of context.");
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215 }
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216 if (PyList_Append(*freelist, cobj)) {
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217 Py_DECREF(cobj); /* This will also call destr. */
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218 return -1;
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219 }
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220 Py_DECREF(cobj);
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221 return 0;
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222 }
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223
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224 static int
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225 cleanreturn(int retval, PyObject *freelist)
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226 {
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227 if (freelist && retval != 0) {
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228 /* We were successful, reset the destructors so that they
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229 don't get called. */
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230 Py_ssize_t len = PyList_GET_SIZE(freelist), i;
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231 for (i = 0; i < len; i++)
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232 PyCapsule_SetDestructor(PyList_GET_ITEM(freelist, i), NULL);
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233 }
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234 Py_XDECREF(freelist);
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235 return retval;
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236 }
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237
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238
1913
8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
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239 static int
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240 vgetargs1(PyObject *args, const char *format, va_list *p_va, int flags)
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241 {
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242 char msgbuf[256];
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243 int levels[32];
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244 const char *fname = NULL;
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245 const char *message = NULL;
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246 int min = -1;
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247 int max = 0;
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248 int level = 0;
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249 int endfmt = 0;
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250 const char *formatsave = format;
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251 Py_ssize_t i, len;
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252 char *msg;
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253 PyObject *freelist = NULL;
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254 int compat = flags & FLAG_COMPAT;
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255
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256 assert(compat || (args != (PyObject*)NULL));
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257 flags = flags & ~FLAG_COMPAT;
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258
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259 while (endfmt == 0) {
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260 int c = *format++;
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261 switch (c) {
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262 case '(':
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263 if (level == 0)
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264 max++;
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265 level++;
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266 if (level >= 30)
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267 Py_FatalError("too many tuple nesting levels "
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268 "in argument format string");
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269 break;
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270 case ')':
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271 if (level == 0)
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272 Py_FatalError("excess ')' in getargs format");
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273 else
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274 level--;
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275 break;
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276 case '\0':
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277 endfmt = 1;
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278 break;
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279 case ':':
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280 fname = format;
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281 endfmt = 1;
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282 break;
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283 case ';':
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284 message = format;
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285 endfmt = 1;
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286 break;
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287 default:
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288 if (level == 0) {
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289 if (c == 'O')
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290 max++;
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291 else if (isalpha(Py_CHARMASK(c))) {
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292 if (c != 'e') /* skip encoded */
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293 max++;
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294 } else if (c == '|')
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295 min = max;
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296 }
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297 break;
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298 }
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299 }
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300
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301 if (level != 0)
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302 Py_FatalError(/* '(' */ "missing ')' in getargs format");
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303
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304 if (min < 0)
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305 min = max;
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306
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307 format = formatsave;
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308
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309 if (compat) {
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310 if (max == 0) {
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311 if (args == NULL)
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312 return 1;
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313 PyErr_Format(PyExc_TypeError,
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314 "%.200s%s takes no arguments",
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315 fname==NULL ? "function" : fname,
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316 fname==NULL ? "" : "()");
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317 return 0;
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318 }
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319 else if (min == 1 && max == 1) {
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320 if (args == NULL) {
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321 PyErr_Format(PyExc_TypeError,
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322 "%.200s%s takes at least one argument",
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323 fname==NULL ? "function" : fname,
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324 fname==NULL ? "" : "()");
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325 return 0;
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326 }
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327 msg = convertitem(args, &format, p_va, flags, levels,
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328 msgbuf, sizeof(msgbuf), &freelist);
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329 if (msg == NULL)
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330 return cleanreturn(1, freelist);
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331 seterror(levels[0], msg, levels+1, fname, message);
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332 return cleanreturn(0, freelist);
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333 }
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334 else {
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335 PyErr_SetString(PyExc_SystemError,
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336 "old style getargs format uses new features");
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337 return 0;
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338 }
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339 }
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340
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341 if (!PyTuple_Check(args)) {
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342 PyErr_SetString(PyExc_SystemError,
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343 "new style getargs format but argument is not a tuple");
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344 return 0;
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345 }
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346
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347 len = PyTuple_GET_SIZE(args);
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348
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349 if (len < min || max < len) {
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350 if (message == NULL)
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351 PyErr_Format(PyExc_TypeError,
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352 "%.150s%s takes %s %d argument%s (%ld given)",
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353 fname==NULL ? "function" : fname,
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354 fname==NULL ? "" : "()",
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355 min==max ? "exactly"
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356 : len < min ? "at least" : "at most",
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357 len < min ? min : max,
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358 (len < min ? min : max) == 1 ? "" : "s",
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359 Py_SAFE_DOWNCAST(len, Py_ssize_t, long));
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360 else
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361 PyErr_SetString(PyExc_TypeError, message);
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362 return 0;
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363 }
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364
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365 for (i = 0; i < len; i++) {
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366 if (*format == '|')
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367 format++;
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368 msg = convertitem(PyTuple_GET_ITEM(args, i), &format, p_va,
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369 flags, levels, msgbuf,
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370 sizeof(msgbuf), &freelist);
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371 if (msg) {
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372 seterror(i+1, msg, levels, fname, msg);
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373 return cleanreturn(0, freelist);
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374 }
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375 }
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376
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377 if (*format != '\0' && !isalpha(Py_CHARMASK(*format)) &&
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378 *format != '(' &&
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379 *format != '|' && *format != ':' && *format != ';') {
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380 PyErr_Format(PyExc_SystemError,
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381 "bad format string: %.200s", formatsave);
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382 return cleanreturn(0, freelist);
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383 }
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384
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385 return cleanreturn(1, freelist);
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386 }
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387
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388
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389
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390 static void
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391 seterror(int iarg, const char *msg, int *levels, const char *fname,
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392 const char *message)
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393 {
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394 char buf[512];
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395 int i;
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396 char *p = buf;
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397
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398 if (PyErr_Occurred())
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399 return;
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400 else if (message == NULL) {
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401 if (fname != NULL) {
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402 PyOS_snprintf(p, sizeof(buf), "%.200s() ", fname);
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403 p += strlen(p);
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404 }
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405 if (iarg != 0) {
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406 PyOS_snprintf(p, sizeof(buf) - (p - buf),
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407 "argument %d", iarg);
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408 i = 0;
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409 p += strlen(p);
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410 while (levels[i] > 0 && i < 32 && (int)(p-buf) < 220) {
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411 PyOS_snprintf(p, sizeof(buf) - (p - buf),
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412 ", item %d", levels[i]-1);
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413 p += strlen(p);
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414 i++;
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415 }
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416 }
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417 else {
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418 PyOS_snprintf(p, sizeof(buf) - (p - buf), "argument");
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419 p += strlen(p);
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420 }
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421 PyOS_snprintf(p, sizeof(buf) - (p - buf), " %.256s", msg);
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422 message = buf;
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423 }
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424 PyErr_SetString(PyExc_TypeError, message);
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425 }
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426
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427
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428 /* Convert a tuple argument.
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429 On entry, *p_format points to the character _after_ the opening '('.
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430 On successful exit, *p_format points to the closing ')'.
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431 If successful:
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432 *p_format and *p_va are updated,
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433 *levels and *msgbuf are untouched,
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434 and NULL is returned.
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435 If the argument is invalid:
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436 *p_format is unchanged,
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437 *p_va is undefined,
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438 *levels is a 0-terminated list of item numbers,
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439 *msgbuf contains an error message, whose format is:
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440 "must be <typename1>, not <typename2>", where:
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441 <typename1> is the name of the expected type, and
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442 <typename2> is the name of the actual type,
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443 and msgbuf is returned.
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444 */
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445
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446 static char *
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447 converttuple(PyObject *arg, const char **p_format, va_list *p_va, int flags,
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448 int *levels, char *msgbuf, size_t bufsize, int toplevel,
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449 PyObject **freelist)
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450 {
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451 int level = 0;
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452 int n = 0;
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453 const char *format = *p_format;
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454 int i;
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455
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456 for (;;) {
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457 int c = *format++;
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458 if (c == '(') {
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459 if (level == 0)
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460 n++;
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461 level++;
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462 }
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463 else if (c == ')') {
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464 if (level == 0)
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465 break;
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466 level--;
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467 }
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468 else if (c == ':' || c == ';' || c == '\0')
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469 break;
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470 else if (level == 0 && isalpha(Py_CHARMASK(c)))
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471 n++;
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472 }
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473
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474 if (!PySequence_Check(arg) || PyBytes_Check(arg)) {
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475 levels[0] = 0;
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476 PyOS_snprintf(msgbuf, bufsize,
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477 toplevel ? "expected %d arguments, not %.50s" :
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478 "must be %d-item sequence, not %.50s",
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479 n,
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480 arg == Py_None ? "None" : arg->ob_type->tp_name);
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481 return msgbuf;
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482 }
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483
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484 if ((i = PySequence_Size(arg)) != n) {
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485 levels[0] = 0;
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486 PyOS_snprintf(msgbuf, bufsize,
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487 toplevel ? "expected %d arguments, not %d" :
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488 "must be sequence of length %d, not %d",
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489 n, i);
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490 return msgbuf;
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491 }
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492
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493 format = *p_format;
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494 for (i = 0; i < n; i++) {
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495 char *msg;
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496 PyObject *item;
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497 item = PySequence_GetItem(arg, i);
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498 if (item == NULL) {
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499 PyErr_Clear();
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500 levels[0] = i+1;
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501 levels[1] = 0;
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502 strncpy(msgbuf, "is not retrievable", bufsize);
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503 return msgbuf;
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504 }
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505 msg = convertitem(item, &format, p_va, flags, levels+1,
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506 msgbuf, bufsize, freelist);
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507 /* PySequence_GetItem calls tp->sq_item, which INCREFs */
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508 Py_XDECREF(item);
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509 if (msg != NULL) {
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510 levels[0] = i+1;
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511 return msg;
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512 }
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513 }
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514
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515 *p_format = format;
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516 return NULL;
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517 }
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518
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519
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520 /* Convert a single item. */
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521
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522 static char *
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523 convertitem(PyObject *arg, const char **p_format, va_list *p_va, int flags,
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524 int *levels, char *msgbuf, size_t bufsize, PyObject **freelist)
1913
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525 {
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526 char *msg;
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527 const char *format = *p_format;
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528
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529 if (*format == '(' /* ')' */) {
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530 format++;
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531 msg = converttuple(arg, &format, p_va, flags, levels, msgbuf,
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532 bufsize, 0, freelist);
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533 if (msg == NULL)
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534 format++;
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535 }
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536 else {
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537 msg = convertsimple(arg, &format, p_va, flags,
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538 msgbuf, bufsize, freelist);
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539 if (msg != NULL)
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540 levels[0] = 0;
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541 }
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542 if (msg == NULL)
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543 *p_format = format;
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544 return msg;
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545 }
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546
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547
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548
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549 #define UNICODE_DEFAULT_ENCODING(arg) \
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550 _PyUnicode_AsDefaultEncodedString(arg)
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551
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552 /* Format an error message generated by convertsimple(). */
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553
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554 static char *
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diff changeset
555 converterr(const char *expected, PyObject *arg, char *msgbuf, size_t bufsize)
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556 {
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557 assert(expected != NULL);
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558 assert(arg != NULL);
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559 PyOS_snprintf(msgbuf, bufsize,
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560 "must be %.50s, not %.50s", expected,
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561 arg == Py_None ? "None" : arg->ob_type->tp_name);
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562 return msgbuf;
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563 }
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564
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565 #define CONV_UNICODE "(unicode conversion error)"
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566
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567 /* Explicitly check for float arguments when integers are expected.
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568 Return 1 for error, 0 if ok. */
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569 static int
9e47f9ed49f6 If a float is passed where a int is expected, issue a DeprecationWarning
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570 float_argument_error(PyObject *arg)
9e47f9ed49f6 If a float is passed where a int is expected, issue a DeprecationWarning
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571 {
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572 if (PyFloat_Check(arg)) {
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573 PyErr_SetString(PyExc_TypeError,
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574 "integer argument expected, got float" );
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575 return 1;
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576 }
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577 else
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578 return 0;
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579 }
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580
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581 /* Convert a non-tuple argument. Return NULL if conversion went OK,
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diff changeset
582 or a string with a message describing the failure. The message is
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583 formatted as "must be <desired type>, not <actual type>".
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584 When failing, an exception may or may not have been raised.
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diff changeset
585 Don't call if a tuple is expected.
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586
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587 When you add new format codes, please don't forget poor skipitem() below.
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588 */
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589
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diff changeset
590 static char *
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591 convertsimple(PyObject *arg, const char **p_format, va_list *p_va, int flags,
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592 char *msgbuf, size_t bufsize, PyObject **freelist)
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593 {
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594 /* For # codes */
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595 #define FETCH_SIZE int *q=NULL;Py_ssize_t *q2=NULL;\
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596 if (flags & FLAG_SIZE_T) q2=va_arg(*p_va, Py_ssize_t*); \
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597 else q=va_arg(*p_va, int*);
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598 #define STORE_SIZE(s) \
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599 if (flags & FLAG_SIZE_T) \
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600 *q2=s; \
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601 else { \
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602 if (INT_MAX < s) { \
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603 PyErr_SetString(PyExc_OverflowError, \
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604 "size does not fit in an int"); \
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605 return converterr("", arg, msgbuf, bufsize); \
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606 } \
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607 *q=s; \
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608 }
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609 #define BUFFER_LEN ((flags & FLAG_SIZE_T) ? *q2:*q)
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98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
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610 #define RETURN_ERR_OCCURRED return msgbuf
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611
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612 const char *format = *p_format;
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613 char c = *format++;
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614 PyObject *uarg;
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615
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616 switch (c) {
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617
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618 case 'b': { /* unsigned byte -- very short int */
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619 char *p = va_arg(*p_va, char *);
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620 long ival;
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621 if (float_argument_error(arg))
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622 RETURN_ERR_OCCURRED;
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623 ival = PyLong_AsLong(arg);
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624 if (ival == -1 && PyErr_Occurred())
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625 RETURN_ERR_OCCURRED;
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626 else if (ival < 0) {
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627 PyErr_SetString(PyExc_OverflowError,
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628 "unsigned byte integer is less than minimum");
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629 RETURN_ERR_OCCURRED;
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630 }
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631 else if (ival > UCHAR_MAX) {
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632 PyErr_SetString(PyExc_OverflowError,
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633 "unsigned byte integer is greater than maximum");
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634 RETURN_ERR_OCCURRED;
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635 }
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636 else
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637 *p = (unsigned char) ival;
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638 break;
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639 }
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640
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641 case 'B': {/* byte sized bitfield - both signed and unsigned
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642 values allowed */
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643 char *p = va_arg(*p_va, char *);
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644 long ival;
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645 if (float_argument_error(arg))
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Victor Stinner <victor.stinner@haypocalc.com>
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646 RETURN_ERR_OCCURRED;
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647 ival = PyLong_AsUnsignedLongMask(arg);
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648 if (ival == -1 && PyErr_Occurred())
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649 RETURN_ERR_OCCURRED;
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650 else
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651 *p = (unsigned char) ival;
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652 break;
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653 }
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654
61467
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655 case 'h': {/* signed short int */
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656 short *p = va_arg(*p_va, short *);
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657 long ival;
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658 if (float_argument_error(arg))
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659 RETURN_ERR_OCCURRED;
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660 ival = PyLong_AsLong(arg);
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661 if (ival == -1 && PyErr_Occurred())
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662 RETURN_ERR_OCCURRED;
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663 else if (ival < SHRT_MIN) {
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664 PyErr_SetString(PyExc_OverflowError,
67346
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Victor Stinner <victor.stinner@haypocalc.com>
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665 "signed short integer is less than minimum");
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
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666 RETURN_ERR_OCCURRED;
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667 }
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668 else if (ival > SHRT_MAX) {
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669 PyErr_SetString(PyExc_OverflowError,
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670 "signed short integer is greater than maximum");
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
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671 RETURN_ERR_OCCURRED;
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672 }
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673 else
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674 *p = (short) ival;
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675 break;
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676 }
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677
61467
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678 case 'H': { /* short int sized bitfield, both signed and
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679 unsigned allowed */
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680 unsigned short *p = va_arg(*p_va, unsigned short *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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681 long ival;
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682 if (float_argument_error(arg))
67346
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683 RETURN_ERR_OCCURRED;
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684 ival = PyLong_AsUnsignedLongMask(arg);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
685 if (ival == -1 && PyErr_Occurred())
67346
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Victor Stinner <victor.stinner@haypocalc.com>
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diff changeset
686 RETURN_ERR_OCCURRED;
61467
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687 else
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688 *p = (unsigned short) ival;
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689 break;
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690 }
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
691
61467
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692 case 'i': {/* signed int */
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693 int *p = va_arg(*p_va, int *);
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694 long ival;
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695 if (float_argument_error(arg))
67346
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696 RETURN_ERR_OCCURRED;
61467
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diff changeset
697 ival = PyLong_AsLong(arg);
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diff changeset
698 if (ival == -1 && PyErr_Occurred())
67346
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699 RETURN_ERR_OCCURRED;
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700 else if (ival > INT_MAX) {
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701 PyErr_SetString(PyExc_OverflowError,
67346
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Victor Stinner <victor.stinner@haypocalc.com>
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702 "signed integer is greater than maximum");
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
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703 RETURN_ERR_OCCURRED;
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704 }
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705 else if (ival < INT_MIN) {
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diff changeset
706 PyErr_SetString(PyExc_OverflowError,
67346
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Victor Stinner <victor.stinner@haypocalc.com>
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707 "signed integer is less than minimum");
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
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708 RETURN_ERR_OCCURRED;
61467
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709 }
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diff changeset
710 else
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diff changeset
711 *p = ival;
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712 break;
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713 }
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
diff changeset
714
61467
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diff changeset
715 case 'I': { /* int sized bitfield, both signed and
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716 unsigned allowed */
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717 unsigned int *p = va_arg(*p_va, unsigned int *);
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718 unsigned int ival;
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719 if (float_argument_error(arg))
67346
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720 RETURN_ERR_OCCURRED;
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721 ival = (unsigned int)PyLong_AsUnsignedLongMask(arg);
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722 if (ival == (unsigned int)-1 && PyErr_Occurred())
67346
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diff changeset
723 RETURN_ERR_OCCURRED;
61467
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724 else
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diff changeset
725 *p = ival;
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diff changeset
726 break;
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727 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
728
61467
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729 case 'n': /* Py_ssize_t */
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diff changeset
730 {
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diff changeset
731 PyObject *iobj;
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732 Py_ssize_t *p = va_arg(*p_va, Py_ssize_t *);
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diff changeset
733 Py_ssize_t ival = -1;
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diff changeset
734 if (float_argument_error(arg))
67346
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735 RETURN_ERR_OCCURRED;
61467
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diff changeset
736 iobj = PyNumber_Index(arg);
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diff changeset
737 if (iobj != NULL) {
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738 ival = PyLong_AsSsize_t(iobj);
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diff changeset
739 Py_DECREF(iobj);
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740 }
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741 if (ival == -1 && PyErr_Occurred())
67346
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diff changeset
742 RETURN_ERR_OCCURRED;
61467
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743 *p = ival;
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744 break;
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745 }
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746 case 'l': {/* long int */
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diff changeset
747 long *p = va_arg(*p_va, long *);
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diff changeset
748 long ival;
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749 if (float_argument_error(arg))
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750 RETURN_ERR_OCCURRED;
61467
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751 ival = PyLong_AsLong(arg);
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752 if (ival == -1 && PyErr_Occurred())
67346
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753 RETURN_ERR_OCCURRED;
61467
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754 else
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755 *p = ival;
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diff changeset
756 break;
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757 }
28652
28a2975514cd SF # 595026: support for masks in getargs.c.
Thomas Heller <theller@ctypes.org>
parents: 28437
diff changeset
758
61467
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diff changeset
759 case 'k': { /* long sized bitfield */
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760 unsigned long *p = va_arg(*p_va, unsigned long *);
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diff changeset
761 unsigned long ival;
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762 if (PyLong_Check(arg))
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763 ival = PyLong_AsUnsignedLongMask(arg);
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764 else
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765 return converterr("integer<k>", arg, msgbuf, bufsize);
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766 *p = ival;
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767 break;
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768 }
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Guido van Rossum <guido@python.org>
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769
9949
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Guido van Rossum <guido@python.org>
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diff changeset
770 #ifdef HAVE_LONG_LONG
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diff changeset
771 case 'L': {/* PY_LONG_LONG */
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diff changeset
772 PY_LONG_LONG *p = va_arg( *p_va, PY_LONG_LONG * );
61466
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diff changeset
773 PY_LONG_LONG ival;
62221
fe5ed70283ef Issue #8950: Make PyArg_Parse* with 'L' code raise for float inputs,
Mark Dickinson <dickinsm@gmail.com>
parents: 62202
diff changeset
774 if (float_argument_error(arg))
67346
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
775 RETURN_ERR_OCCURRED;
61466
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diff changeset
776 ival = PyLong_AsLongLong(arg);
62221
fe5ed70283ef Issue #8950: Make PyArg_Parse* with 'L' code raise for float inputs,
Mark Dickinson <dickinsm@gmail.com>
parents: 62202
diff changeset
777 if (ival == (PY_LONG_LONG)-1 && PyErr_Occurred())
67346
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
778 RETURN_ERR_OCCURRED;
62221
fe5ed70283ef Issue #8950: Make PyArg_Parse* with 'L' code raise for float inputs,
Mark Dickinson <dickinsm@gmail.com>
parents: 62202
diff changeset
779 else
61467
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diff changeset
780 *p = ival;
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diff changeset
781 break;
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diff changeset
782 }
28652
28a2975514cd SF # 595026: support for masks in getargs.c.
Thomas Heller <theller@ctypes.org>
parents: 28437
diff changeset
783
61467
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diff changeset
784 case 'K': { /* long long sized bitfield */
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diff changeset
785 unsigned PY_LONG_LONG *p = va_arg(*p_va, unsigned PY_LONG_LONG *);
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diff changeset
786 unsigned PY_LONG_LONG ival;
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diff changeset
787 if (PyLong_Check(arg))
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diff changeset
788 ival = PyLong_AsUnsignedLongLongMask(arg);
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diff changeset
789 else
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diff changeset
790 return converterr("integer<K>", arg, msgbuf, bufsize);
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diff changeset
791 *p = ival;
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diff changeset
792 break;
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793 }
8822
bd47ee068b83 Changes for BeOS, QNX and long long, by Chris Herborth.
Guido van Rossum <guido@python.org>
parents: 8358
diff changeset
794 #endif
43777
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diff changeset
795
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diff changeset
796 case 'f': {/* float */
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diff changeset
797 float *p = va_arg(*p_va, float *);
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diff changeset
798 double dval = PyFloat_AsDouble(arg);
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diff changeset
799 if (PyErr_Occurred())
67346
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
800 RETURN_ERR_OCCURRED;
61467
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diff changeset
801 else
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diff changeset
802 *p = (float) dval;
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diff changeset
803 break;
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diff changeset
804 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
805
61467
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diff changeset
806 case 'd': {/* double */
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diff changeset
807 double *p = va_arg(*p_va, double *);
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diff changeset
808 double dval = PyFloat_AsDouble(arg);
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diff changeset
809 if (PyErr_Occurred())
67346
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
810 RETURN_ERR_OCCURRED;
61467
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diff changeset
811 else
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diff changeset
812 *p = dval;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
813 break;
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diff changeset
814 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
815
61467
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diff changeset
816 case 'D': {/* complex double */
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diff changeset
817 Py_complex *p = va_arg(*p_va, Py_complex *);
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diff changeset
818 Py_complex cval;
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diff changeset
819 cval = PyComplex_AsCComplex(arg);
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diff changeset
820 if (PyErr_Occurred())
67346
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
821 RETURN_ERR_OCCURRED;
61467
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diff changeset
822 else
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diff changeset
823 *p = cval;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
824 break;
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diff changeset
825 }
43777
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parents: 43651
diff changeset
826
61467
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diff changeset
827 case 'c': {/* char */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
828 char *p = va_arg(*p_va, char *);
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diff changeset
829 if (PyBytes_Check(arg) && PyBytes_Size(arg) == 1)
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diff changeset
830 *p = PyBytes_AS_STRING(arg)[0];
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diff changeset
831 else
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diff changeset
832 return converterr("a byte string of length 1", arg, msgbuf, bufsize);
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diff changeset
833 break;
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diff changeset
834 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
835
61467
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diff changeset
836 case 'C': {/* unicode char */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
837 int *p = va_arg(*p_va, int *);
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diff changeset
838 if (PyUnicode_Check(arg) &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
839 PyUnicode_GET_SIZE(arg) == 1)
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diff changeset
840 *p = PyUnicode_AS_UNICODE(arg)[0];
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diff changeset
841 else
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diff changeset
842 return converterr("a unicode character", arg, msgbuf, bufsize);
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diff changeset
843 break;
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diff changeset
844 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
845
62202
d7113cacd428 Issue #8838, #8339: Remove codecs.charbuffer_encode() and "t#" parsing format
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62197
diff changeset
846 /* XXX WAAAAH! 's', 'y', 'z', 'u', 'Z', 'e', 'w' codes all
61467
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diff changeset
847 need to be cleaned up! */
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
848
61467
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diff changeset
849 case 'y': {/* any buffer-like object, but not PyUnicode */
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parents: 57549
diff changeset
850 void **p = (void **)va_arg(*p_va, char **);
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diff changeset
851 char *buf;
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diff changeset
852 Py_ssize_t count;
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parents: 57549
diff changeset
853 if (*format == '*') {
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
854 if (getbuffer(arg, (Py_buffer*)p, &buf) < 0)
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diff changeset
855 return converterr(buf, arg, msgbuf, bufsize);
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
856 format++;
67345
a7d15df7d67d Issue #8992: Simplify addcleanup() API
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67342
diff changeset
857 if (addcleanup(p, freelist, 1)) {
61467
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diff changeset
858 return converterr(
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
859 "(cleanup problem)",
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diff changeset
860 arg, msgbuf, bufsize);
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diff changeset
861 }
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diff changeset
862 break;
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diff changeset
863 }
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diff changeset
864 count = convertbuffer(arg, p, &buf);
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diff changeset
865 if (count < 0)
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
866 return converterr(buf, arg, msgbuf, bufsize);
62322
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
867 if (*format == '#') {
61467
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diff changeset
868 FETCH_SIZE;
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diff changeset
869 STORE_SIZE(count);
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diff changeset
870 format++;
62322
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
871 } else {
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
872 if (strlen(*p) != count)
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
873 return converterr(
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
874 "bytes without null bytes",
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
875 arg, msgbuf, bufsize);
61467
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diff changeset
876 }
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diff changeset
877 break;
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diff changeset
878 }
41611
c48fe4dc34a9 Change UnicodeDecodeError objects so that the 'object' attribute
Walter Dörwald <walter@livinglogic.de>
parents: 41596
diff changeset
879
62478
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
880 case 's': /* text string */
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
881 case 'z': /* text string or None */
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
882 {
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883 if (*format == '*') {
62478
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parents: 62476
diff changeset
884 /* "s*" or "z*" */
61467
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diff changeset
885 Py_buffer *p = (Py_buffer *)va_arg(*p_va, Py_buffer *);
48683
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Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
886
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
887 if (c == 'z' && arg == Py_None)
61467
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diff changeset
888 PyBuffer_FillInfo(p, NULL, NULL, 0, 1, 0);
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diff changeset
889 else if (PyUnicode_Check(arg)) {
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diff changeset
890 uarg = UNICODE_DEFAULT_ENCODING(arg);
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diff changeset
891 if (uarg == NULL)
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diff changeset
892 return converterr(CONV_UNICODE,
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diff changeset
893 arg, msgbuf, bufsize);
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diff changeset
894 PyBuffer_FillInfo(p, arg,
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diff changeset
895 PyBytes_AS_STRING(uarg), PyBytes_GET_SIZE(uarg),
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diff changeset
896 1, 0);
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897 }
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898 else { /* any buffer-like object */
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diff changeset
899 char *buf;
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900 if (getbuffer(arg, p, &buf) < 0)
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901 return converterr(buf, arg, msgbuf, bufsize);
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diff changeset
902 }
67345
a7d15df7d67d Issue #8992: Simplify addcleanup() API
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67342
diff changeset
903 if (addcleanup(p, freelist, 1)) {
61467
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diff changeset
904 return converterr(
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diff changeset
905 "(cleanup problem)",
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diff changeset
906 arg, msgbuf, bufsize);
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907 }
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908 format++;
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909 } else if (*format == '#') { /* any buffer-like object */
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diff changeset
910 /* "s#" or "z#" */
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911 void **p = (void **)va_arg(*p_va, char **);
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912 FETCH_SIZE;
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diff changeset
913
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diff changeset
914 if (c == 'z' && arg == Py_None) {
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
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915 *p = NULL;
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916 STORE_SIZE(0);
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917 }
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918 else if (PyUnicode_Check(arg)) {
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919 uarg = UNICODE_DEFAULT_ENCODING(arg);
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920 if (uarg == NULL)
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921 return converterr(CONV_UNICODE,
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922 arg, msgbuf, bufsize);
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923 *p = PyBytes_AS_STRING(uarg);
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924 STORE_SIZE(PyBytes_GET_SIZE(uarg));
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925 }
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926 else { /* any buffer-like object */
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927 /* XXX Really? */
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928 char *buf;
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929 Py_ssize_t count = convertbuffer(arg, p, &buf);
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930 if (count < 0)
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931 return converterr(buf, arg, msgbuf, bufsize);
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932 STORE_SIZE(count);
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933 }
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934 format++;
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935 } else {
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936 /* "s" or "z" */
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937 char **p = va_arg(*p_va, char **);
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938 uarg = NULL;
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939
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940 if (c == 'z' && arg == Py_None)
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
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941 *p = NULL;
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942 else if (PyUnicode_Check(arg)) {
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943 uarg = UNICODE_DEFAULT_ENCODING(arg);
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944 if (uarg == NULL)
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945 return converterr(CONV_UNICODE,
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946 arg, msgbuf, bufsize);
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947 *p = PyBytes_AS_STRING(uarg);
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948 }
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949 else
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950 return converterr(c == 'z' ? "str or None" : "str",
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951 arg, msgbuf, bufsize);
61972
852d5ea625e7 Remove dead code
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952 if (*p != NULL && uarg != NULL &&
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953 (Py_ssize_t) strlen(*p) != PyBytes_GET_SIZE(uarg))
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954 return converterr(
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955 c == 'z' ? "str without null bytes or None"
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956 : "str without null bytes",
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957 arg, msgbuf, bufsize);
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958 }
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959 break;
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960 }
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961
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962 case 'u': /* raw unicode buffer (Py_UNICODE *) */
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963 case 'Z': /* raw unicode buffer or None */
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964 {
68102
e2f96bd29252 Issue #8914: fix various warnings from the Clang static analyzer v254.
Brett Cannon <bcannon@gmail.com>
parents: 67346
diff changeset
965 Py_UNICODE **p = va_arg(*p_va, Py_UNICODE **);
e2f96bd29252 Issue #8914: fix various warnings from the Clang static analyzer v254.
Brett Cannon <bcannon@gmail.com>
parents: 67346
diff changeset
966
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967 if (*format == '#') { /* any buffer-like object */
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968 /* "s#" or "Z#" */
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969 FETCH_SIZE;
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970
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971 if (c == 'Z' && arg == Py_None) {
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972 *p = NULL;
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973 STORE_SIZE(0);
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974 }
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975 else if (PyUnicode_Check(arg)) {
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976 *p = PyUnicode_AS_UNICODE(arg);
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977 STORE_SIZE(PyUnicode_GET_SIZE(arg));
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978 }
62198
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979 else
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980 return converterr("str or None", arg, msgbuf, bufsize);
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981 format++;
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982 } else {
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983 /* "s" or "Z" */
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984 if (c == 'Z' && arg == Py_None)
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985 *p = NULL;
62322
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
986 else if (PyUnicode_Check(arg)) {
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987 *p = PyUnicode_AS_UNICODE(arg);
62322
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
988 if (Py_UNICODE_strlen(*p) != PyUnicode_GET_SIZE(arg))
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
989 return converterr(
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
990 "str without null character or None",
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
991 arg, msgbuf, bufsize);
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
992 } else
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993 return converterr(c == 'Z' ? "str or None" : "str",
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994 arg, msgbuf, bufsize);
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995 }
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996 break;
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997 }
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998
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999 case 'e': {/* encoded string */
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1000 char **buffer;
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1001 const char *encoding;
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1002 PyObject *s;
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1003 int recode_strings;
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1004 Py_ssize_t size;
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1005 const char *ptr;
12051
d89556c04ef9 Marc-Andre Lemburg:
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1006
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1007 /* Get 'e' parameter: the encoding name */
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1008 encoding = (const char *)va_arg(*p_va, const char *);
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1009 if (encoding == NULL)
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1010 encoding = PyUnicode_GetDefaultEncoding();
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1011
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1012 /* Get output buffer parameter:
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1013 's' (recode all objects via Unicode) or
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1014 't' (only recode non-string objects)
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1015 */
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1016 if (*format == 's')
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1017 recode_strings = 1;
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1018 else if (*format == 't')
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1019 recode_strings = 0;
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1020 else
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1021 return converterr(
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1022 "(unknown parser marker combination)",
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1023 arg, msgbuf, bufsize);
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1024 buffer = (char **)va_arg(*p_va, char **);
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1025 format++;
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1026 if (buffer == NULL)
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1027 return converterr("(buffer is NULL)",
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1028 arg, msgbuf, bufsize);
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1029
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1030 /* Encode object */
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1031 if (!recode_strings &&
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1032 (PyBytes_Check(arg) || PyByteArray_Check(arg))) {
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1033 s = arg;
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1034 Py_INCREF(s);
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1035 if (PyObject_AsCharBuffer(s, &ptr, &size) < 0)
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1036 return converterr("(AsCharBuffer failed)",
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1037 arg, msgbuf, bufsize);
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1038 }
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1039 else {
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1040 PyObject *u;
19343
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Martin v. Löwis <martin@v.loewis.de>
parents: 18887
diff changeset
1041
61467
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1042 /* Convert object to Unicode */
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1043 u = PyUnicode_FromObject(arg);
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1044 if (u == NULL)
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1045 return converterr(
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1046 "string or unicode or text buffer",
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1047 arg, msgbuf, bufsize);
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1048
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1049 /* Encode object; use default error handling */
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1050 s = PyUnicode_AsEncodedString(u,
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1051 encoding,
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1052 NULL);
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1053 Py_DECREF(u);
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1054 if (s == NULL)
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1055 return converterr("(encoding failed)",
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1056 arg, msgbuf, bufsize);
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1057 if (!PyBytes_Check(s)) {
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1058 Py_DECREF(s);
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1059 return converterr(
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1060 "(encoder failed to return bytes)",
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1061 arg, msgbuf, bufsize);
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1062 }
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1063 size = PyBytes_GET_SIZE(s);
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1064 ptr = PyBytes_AS_STRING(s);
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1065 if (ptr == NULL)
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1066 ptr = "";
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1067 }
12051
d89556c04ef9 Marc-Andre Lemburg:
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diff changeset
1068
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1069 /* Write output; output is guaranteed to be 0-terminated */
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1070 if (*format == '#') {
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1071 /* Using buffer length parameter '#':
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1072
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1073 - if *buffer is NULL, a new buffer of the
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1074 needed size is allocated and the data
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1075 copied into it; *buffer is updated to point
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1076 to the new buffer; the caller is
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1077 responsible for PyMem_Free()ing it after
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1078 usage
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1079
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1080 - if *buffer is not NULL, the data is
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1081 copied to *buffer; *buffer_len has to be
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1082 set to the size of the buffer on input;
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1083 buffer overflow is signalled with an error;
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1084 buffer has to provide enough room for the
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1085 encoded string plus the trailing 0-byte
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1086
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1087 - in both cases, *buffer_len is updated to
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1088 the size of the buffer /excluding/ the
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1089 trailing 0-byte
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1090
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1091 */
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1092 FETCH_SIZE;
12051
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parents: 11975
diff changeset
1093
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1094 format++;
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1095 if (q == NULL && q2 == NULL) {
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1096 Py_DECREF(s);
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1097 return converterr(
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1098 "(buffer_len is NULL)",
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1099 arg, msgbuf, bufsize);
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1100 }
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1101 if (*buffer == NULL) {
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1102 *buffer = PyMem_NEW(char, size + 1);
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1103 if (*buffer == NULL) {
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1104 Py_DECREF(s);
62151
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62149
diff changeset
1105 PyErr_NoMemory();
67346
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1106 RETURN_ERR_OCCURRED;
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1107 }
67345
a7d15df7d67d Issue #8992: Simplify addcleanup() API
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67342
diff changeset
1108 if (addcleanup(*buffer, freelist, 0)) {
61467
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1109 Py_DECREF(s);
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1110 return converterr(
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1111 "(cleanup problem)",
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1112 arg, msgbuf, bufsize);
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1113 }
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1114 } else {
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1115 if (size + 1 > BUFFER_LEN) {
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1116 Py_DECREF(s);
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1117 return converterr(
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1118 "(buffer overflow)",
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1119 arg, msgbuf, bufsize);
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1120 }
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1121 }
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1122 memcpy(*buffer, ptr, size+1);
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1123 STORE_SIZE(size);
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1124 } else {
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1125 /* Using a 0-terminated buffer:
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1126
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1127 - the encoded string has to be 0-terminated
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1128 for this variant to work; if it is not, an
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1129 error raised
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
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1130
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1131 - a new buffer of the needed size is
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1132 allocated and the data copied into it;
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1133 *buffer is updated to point to the new
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1134 buffer; the caller is responsible for
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1135 PyMem_Free()ing it after usage
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parents: 17857
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1136
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1137 */
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1138 if ((Py_ssize_t)strlen(ptr) != size) {
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1139 Py_DECREF(s);
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1140 return converterr(
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1141 "encoded string without NULL bytes",
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1142 arg, msgbuf, bufsize);
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1143 }
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1144 *buffer = PyMem_NEW(char, size + 1);
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1145 if (*buffer == NULL) {
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1146 Py_DECREF(s);
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1147 PyErr_NoMemory();
67346
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1148 RETURN_ERR_OCCURRED;
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1149 }
67345
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parents: 67342
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1150 if (addcleanup(*buffer, freelist, 0)) {
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1151 Py_DECREF(s);
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1152 return converterr("(cleanup problem)",
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1153 arg, msgbuf, bufsize);
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diff changeset
1154 }
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diff changeset
1155 memcpy(*buffer, ptr, size+1);
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diff changeset
1156 }
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diff changeset
1157 Py_DECREF(s);
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diff changeset
1158 break;
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diff changeset
1159 }
12570
3dbe41380266 Brian Hooper <brian_takashi@hotmail.com>:
Fred Drake <fdrake@acm.org>
parents: 12510
diff changeset
1160
61467
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diff changeset
1161 case 'S': { /* PyBytes object */
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diff changeset
1162 PyObject **p = va_arg(*p_va, PyObject **);
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diff changeset
1163 if (PyBytes_Check(arg))
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diff changeset
1164 *p = arg;
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diff changeset
1165 else
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diff changeset
1166 return converterr("bytes", arg, msgbuf, bufsize);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1167 break;
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diff changeset
1168 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1169
61467
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diff changeset
1170 case 'Y': { /* PyByteArray object */
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diff changeset
1171 PyObject **p = va_arg(*p_va, PyObject **);
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diff changeset
1172 if (PyByteArray_Check(arg))
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diff changeset
1173 *p = arg;
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diff changeset
1174 else
62198
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diff changeset
1175 return converterr("bytearray", arg, msgbuf, bufsize);
61467
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diff changeset
1176 break;
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1177 }
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1178
61467
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diff changeset
1179 case 'U': { /* PyUnicode object */
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diff changeset
1180 PyObject **p = va_arg(*p_va, PyObject **);
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diff changeset
1181 if (PyUnicode_Check(arg))
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diff changeset
1182 *p = arg;
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1183 else
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1184 return converterr("str", arg, msgbuf, bufsize);
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diff changeset
1185 break;
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1186 }
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diff changeset
1187
61467
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diff changeset
1188 case 'O': { /* object */
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diff changeset
1189 PyTypeObject *type;
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diff changeset
1190 PyObject **p;
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diff changeset
1191 if (*format == '!') {
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diff changeset
1192 type = va_arg(*p_va, PyTypeObject*);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1193 p = va_arg(*p_va, PyObject **);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1194 format++;
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diff changeset
1195 if (PyType_IsSubtype(arg->ob_type, type))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1196 *p = arg;
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diff changeset
1197 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1198 return converterr(type->tp_name, arg, msgbuf, bufsize);
8358
da4bdceeaad7 Another veeeeeery old patch...
Guido van Rossum <guido@python.org>
parents: 7982
diff changeset
1199
61467
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diff changeset
1200 }
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diff changeset
1201 else if (*format == '&') {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1202 typedef int (*converter)(PyObject *, void *);
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diff changeset
1203 converter convert = va_arg(*p_va, converter);
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diff changeset
1204 void *addr = va_arg(*p_va, void *);
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diff changeset
1205 int res;
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diff changeset
1206 format++;
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diff changeset
1207 if (! (res = (*convert)(arg, addr)))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1208 return converterr("(unspecified)",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1209 arg, msgbuf, bufsize);
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diff changeset
1210 if (res == Py_CLEANUP_SUPPORTED &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1211 addcleanup_convert(addr, freelist, convert) == -1)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1212 return converterr("(cleanup problem)",
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diff changeset
1213 arg, msgbuf, bufsize);
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diff changeset
1214 }
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diff changeset
1215 else {
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diff changeset
1216 p = va_arg(*p_va, PyObject **);
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diff changeset
1217 *p = arg;
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diff changeset
1218 }
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diff changeset
1219 break;
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diff changeset
1220 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1221
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1222
62484
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1223 case 'w': { /* "w*": memory buffer, read-write access */
61467
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diff changeset
1224 void **p = va_arg(*p_va, void **);
48683
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Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1225
62484
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1226 if (*format != '*')
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1227 return converterr(
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1228 "invalid use of 'w' format character",
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1229 arg, msgbuf, bufsize);
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1230 format++;
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1231
62484
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1232 /* Caller is interested in Py_buffer, and the object
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1233 supports it directly. */
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1234 if (PyObject_GetBuffer(arg, (Py_buffer*)p, PyBUF_WRITABLE) < 0) {
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1235 PyErr_Clear();
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1236 return converterr("read-write buffer", arg, msgbuf, bufsize);
61467
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diff changeset
1237 }
63259
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1238 if (!PyBuffer_IsContiguous((Py_buffer*)p, 'C')) {
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1239 PyBuffer_Release((Py_buffer*)p);
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1240 return converterr("contiguous buffer", arg, msgbuf, bufsize);
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1241 }
67345
a7d15df7d67d Issue #8992: Simplify addcleanup() API
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67342
diff changeset
1242 if (addcleanup(p, freelist, 1)) {
61467
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parents: 57549
diff changeset
1243 return converterr(
62484
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1244 "(cleanup problem)",
61467
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diff changeset
1245 arg, msgbuf, bufsize);
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diff changeset
1246 }
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diff changeset
1247 break;
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diff changeset
1248 }
9306
79439e4e9976 Implement new format character 't#'. This is like s#, accepting an
Guido van Rossum <guido@python.org>
parents: 9044
diff changeset
1249
61467
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diff changeset
1250 default:
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diff changeset
1251 return converterr("impossible<bad format char>", arg, msgbuf, bufsize);
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1252
61467
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1253 }
43777
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parents: 43651
diff changeset
1254
61467
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diff changeset
1255 *p_format = format;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1256 return NULL;
67346
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1257
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1258 #undef FETCH_SIZE
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1259 #undef STORE_SIZE
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1260 #undef BUFFER_LEN
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1261 #undef RETURN_ERR_OCCURRED
1913
8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
Guido van Rossum <guido@python.org>
parents:
diff changeset
1262 }
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1263
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1264 static Py_ssize_t
20629
acc7e3b4d042 Style conformance: function name begins a new line *consistently*.
Fred Drake <fdrake@acm.org>
parents: 20371
diff changeset
1265 convertbuffer(PyObject *arg, void **p, char **errmsg)
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
diff changeset
1266 {
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1267 PyBufferProcs *pb = Py_TYPE(arg)->tp_as_buffer;
61467
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diff changeset
1268 Py_ssize_t count;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1269 Py_buffer view;
42665
85c22b4d4455 Merged in py3k-buffer branch to main line. All objects now use the buffer protocol in PEP 3118.
Travis E. Oliphant <oliphant@enthought.com>
parents: 42139
diff changeset
1270
61467
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diff changeset
1271 *errmsg = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1272 *p = NULL;
63259
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1273 if (pb != NULL && pb->bf_releasebuffer != NULL) {
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1274 *errmsg = "read-only pinned buffer";
61467
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diff changeset
1275 return -1;
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1276 }
42665
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Travis E. Oliphant <oliphant@enthought.com>
parents: 42139
diff changeset
1277
63259
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1278 if (getbuffer(arg, &view, errmsg) < 0)
61467
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diff changeset
1279 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1280 count = view.len;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1281 *p = view.buf;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1282 PyBuffer_Release(&view);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1283 return count;
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
diff changeset
1284 }
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1285
48683
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1286 static int
48848
5c75a33ef5b2 Merged revisions 66006 via svnmerge from
Neal Norwitz <nnorwitz@gmail.com>
parents: 48683
diff changeset
1287 getbuffer(PyObject *arg, Py_buffer *view, char **errmsg)
48683
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1288 {
63259
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1289 if (PyObject_GetBuffer(arg, view, PyBUF_SIMPLE) != 0) {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1290 *errmsg = "bytes or buffer";
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1291 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1292 }
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1293 if (!PyBuffer_IsContiguous(view, 'C')) {
62482
bb6222a4ed24 getbuffer(): release the buffer on error (if the buffer is not contiguous)
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62478
diff changeset
1294 PyBuffer_Release(view);
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1295 *errmsg = "contiguous buffer";
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1296 return -1;
61467
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diff changeset
1297 }
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diff changeset
1298 return 0;
48683
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1299 }
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1300
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1301 /* Support for keyword arguments donated by
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1302 Geoff Philbrick <philbric@delphi.hks.com> */
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1303
20711
2890769b1e69 PyArg_ParseTupleAndKeywords: return false on internal error, not -1 (I
Tim Peters <tim.peters@gmail.com>
parents: 20710
diff changeset
1304 /* Return false (0) for error, else true. */
20629
acc7e3b4d042 Style conformance: function name begins a new line *consistently*.
Fred Drake <fdrake@acm.org>
parents: 20371
diff changeset
1305 int
acc7e3b4d042 Style conformance: function name begins a new line *consistently*.
Fred Drake <fdrake@acm.org>
parents: 20371
diff changeset
1306 PyArg_ParseTupleAndKeywords(PyObject *args,
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1307 PyObject *keywords,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1308 const char *format,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1309 char **kwlist, ...)
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1310 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1311 int retval;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1312 va_list va;
20710
a44cc0c21cfe PyArg_ParseTupleAndKeywords: do basic sanity checks on the arguments,
Tim Peters <tim.peters@gmail.com>
parents: 20709
diff changeset
1313
61467
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parents: 57549
diff changeset
1314 if ((args == NULL || !PyTuple_Check(args)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1315 (keywords != NULL && !PyDict_Check(keywords)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1316 format == NULL ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1317 kwlist == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1318 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1319 PyErr_BadInternalCall();
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diff changeset
1320 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1321 }
20710
a44cc0c21cfe PyArg_ParseTupleAndKeywords: do basic sanity checks on the arguments,
Tim Peters <tim.peters@gmail.com>
parents: 20709
diff changeset
1322
61467
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diff changeset
1323 va_start(va, kwlist);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1324 retval = vgetargskeywords(args, keywords, format, kwlist, &va, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1325 va_end(va);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1326 return retval;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1327 }
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1328
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1329 int
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1330 _PyArg_ParseTupleAndKeywords_SizeT(PyObject *args,
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1331 PyObject *keywords,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1332 const char *format,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1333 char **kwlist, ...)
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1334 {
61467
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diff changeset
1335 int retval;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1336 va_list va;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1337
61467
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diff changeset
1338 if ((args == NULL || !PyTuple_Check(args)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1339 (keywords != NULL && !PyDict_Check(keywords)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1340 format == NULL ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1341 kwlist == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1342 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1343 PyErr_BadInternalCall();
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diff changeset
1344 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1345 }
36501
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diff changeset
1346
61467
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diff changeset
1347 va_start(va, kwlist);
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diff changeset
1348 retval = vgetargskeywords(args, keywords, format,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1349 kwlist, &va, FLAG_SIZE_T);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1350 va_end(va);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1351 return retval;
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1352 }
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1353
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1354
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1355 int
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1356 PyArg_VaParseTupleAndKeywords(PyObject *args,
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 35552
diff changeset
1357 PyObject *keywords,
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1358 const char *format,
36675
dba6494735d0 Revert backwards-incompatible const changes.
Martin v. Löwis <martin@v.loewis.de>
parents: 36625
diff changeset
1359 char **kwlist, va_list va)
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1360 {
61467
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diff changeset
1361 int retval;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1362 va_list lva;
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1363
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1364 if ((args == NULL || !PyTuple_Check(args)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1365 (keywords != NULL && !PyDict_Check(keywords)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1366 format == NULL ||
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diff changeset
1367 kwlist == NULL)
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parents: 57549
diff changeset
1368 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1369 PyErr_BadInternalCall();
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parents: 57549
diff changeset
1370 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1371 }
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1372
63924
9108e7dcd7d8 Issue #2443: Added a new macro, Py_VA_COPY, which is equivalent to C99
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 63259
diff changeset
1373 Py_VA_COPY(lva, va);
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1374
61467
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diff changeset
1375 retval = vgetargskeywords(args, keywords, format, kwlist, &lva, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1376 return retval;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1377 }
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1378
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1379 int
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1380 _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *args,
61467
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diff changeset
1381 PyObject *keywords,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1382 const char *format,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1383 char **kwlist, va_list va)
36501
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diff changeset
1384 {
61467
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diff changeset
1385 int retval;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1386 va_list lva;
36501
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diff changeset
1387
61467
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diff changeset
1388 if ((args == NULL || !PyTuple_Check(args)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1389 (keywords != NULL && !PyDict_Check(keywords)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1390 format == NULL ||
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parents: 57549
diff changeset
1391 kwlist == NULL)
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diff changeset
1392 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1393 PyErr_BadInternalCall();
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parents: 57549
diff changeset
1394 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1395 }
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1396
63924
9108e7dcd7d8 Issue #2443: Added a new macro, Py_VA_COPY, which is equivalent to C99
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 63259
diff changeset
1397 Py_VA_COPY(lva, va);
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1398
61467
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diff changeset
1399 retval = vgetargskeywords(args, keywords, format,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1400 kwlist, &lva, FLAG_SIZE_T);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1401 return retval;
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1402 }
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1403
60931
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1404 int
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1405 PyArg_ValidateKeywordArguments(PyObject *kwargs)
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1406 {
66220
379029714e24 handle dict subclasses gracefully in PyArg_ValidateKeywordArguments
Benjamin Peterson <benjamin@python.org>
parents: 63924
diff changeset
1407 if (!PyDict_Check(kwargs)) {
61466
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diff changeset
1408 PyErr_BadInternalCall();
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diff changeset
1409 return 0;
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diff changeset
1410 }
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diff changeset
1411 if (!_PyDict_HasOnlyStringKeys(kwargs)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1412 PyErr_SetString(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1413 "keyword arguments must be strings");
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diff changeset
1414 return 0;
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diff changeset
1415 }
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diff changeset
1416 return 1;
60931
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1417 }
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1418
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Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
1419 #define IS_END_OF_FORMAT(c) (c == '\0' || c == ';' || c == ':')
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1420
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1421 static int
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 35552
diff changeset
1422 vgetargskeywords(PyObject *args, PyObject *keywords, const char *format,
61467
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diff changeset
1423 char **kwlist, va_list *p_va, int flags)
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1424 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1425 char msgbuf[512];
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diff changeset
1426 int levels[32];
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diff changeset
1427 const char *fname, *msg, *custom_msg, *keyword;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1428 int min = INT_MAX;
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diff changeset
1429 int i, len, nargs, nkeywords;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1430 PyObject *freelist = NULL, *current_arg;
20708
e912b683ed3e vgetargskeywords(): remove test that can't succeed. Not a bugfix, just
Tim Peters <tim.peters@gmail.com>
parents: 20632
diff changeset
1431
61467
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diff changeset
1432 assert(args != NULL && PyTuple_Check(args));
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diff changeset
1433 assert(keywords == NULL || PyDict_Check(keywords));
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diff changeset
1434 assert(format != NULL);
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diff changeset
1435 assert(kwlist != NULL);
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diff changeset
1436 assert(p_va != NULL);
20710
a44cc0c21cfe PyArg_ParseTupleAndKeywords: do basic sanity checks on the arguments,
Tim Peters <tim.peters@gmail.com>
parents: 20709
diff changeset
1437
61467
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diff changeset
1438 /* grab the function name or custom error msg first (mutually exclusive) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1439 fname = strchr(format, ':');
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diff changeset
1440 if (fname) {
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parents: 57549
diff changeset
1441 fname++;
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diff changeset
1442 custom_msg = NULL;
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diff changeset
1443 }
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diff changeset
1444 else {
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diff changeset
1445 custom_msg = strchr(format,';');
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diff changeset
1446 if (custom_msg)
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diff changeset
1447 custom_msg++;
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1448 }
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Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
1449
61467
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1450 /* scan kwlist and get greatest possible nbr of args */
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diff changeset
1451 for (len=0; kwlist[len]; len++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1452 continue;
20711
2890769b1e69 PyArg_ParseTupleAndKeywords: return false on internal error, not -1 (I
Tim Peters <tim.peters@gmail.com>
parents: 20710
diff changeset
1453
61467
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diff changeset
1454 nargs = PyTuple_GET_SIZE(args);
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diff changeset
1455 nkeywords = (keywords == NULL) ? 0 : PyDict_Size(keywords);
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diff changeset
1456 if (nargs + nkeywords > len) {
68809
4c2135930882 Issue #10833: Use PyErr_Format() and PyUnicode_FromFormat() instead of
Victor Stinner <victor.stinner@haypocalc.com>
parents: 68796
diff changeset
1457 PyErr_Format(PyExc_TypeError,
4c2135930882 Issue #10833: Use PyErr_Format() and PyUnicode_FromFormat() instead of
Victor Stinner <victor.stinner@haypocalc.com>
parents: 68796
diff changeset
1458 "%s%s takes at most %d argument%s (%d given)",
61467
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diff changeset
1459 (fname == NULL) ? "function" : fname,
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diff changeset
1460 (fname == NULL) ? "" : "()",
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diff changeset
1461 len,
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diff changeset
1462 (len == 1) ? "" : "s",
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diff changeset
1463 nargs + nkeywords);
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diff changeset
1464 return 0;
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diff changeset
1465 }
20723
6ac45244c41e vgetargskeywords()
Tim Peters <tim.peters@gmail.com>
parents: 20722
diff changeset
1466
61467
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diff changeset
1467 /* convert tuple args and keyword args in same loop, using kwlist to drive process */
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diff changeset
1468 for (i = 0; i < len; i++) {
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diff changeset
1469 keyword = kwlist[i];
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diff changeset
1470 if (*format == '|') {
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diff changeset
1471 min = i;
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diff changeset
1472 format++;
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1473 }
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1474 if (IS_END_OF_FORMAT(*format)) {
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diff changeset
1475 PyErr_Format(PyExc_RuntimeError,
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diff changeset
1476 "More keyword list entries (%d) than "
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1477 "format specifiers (%d)", len, i);
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diff changeset
1478 return cleanreturn(0, freelist);
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diff changeset
1479 }
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diff changeset
1480 current_arg = NULL;
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diff changeset
1481 if (nkeywords) {
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diff changeset
1482 current_arg = PyDict_GetItemString(keywords, keyword);
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1483 }
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diff changeset
1484 if (current_arg) {
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diff changeset
1485 --nkeywords;
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diff changeset
1486 if (i < nargs) {
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diff changeset
1487 /* arg present in tuple and in dict */
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diff changeset
1488 PyErr_Format(PyExc_TypeError,
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diff changeset
1489 "Argument given by name ('%s') "
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diff changeset
1490 "and position (%d)",
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diff changeset
1491 keyword, i+1);
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diff changeset
1492 return cleanreturn(0, freelist);
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diff changeset
1493 }
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diff changeset
1494 }
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1495 else if (nkeywords && PyErr_Occurred())
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diff changeset
1496 return cleanreturn(0, freelist);
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diff changeset
1497 else if (i < nargs)
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diff changeset
1498 current_arg = PyTuple_GET_ITEM(args, i);
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diff changeset
1499
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1500 if (current_arg) {
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diff changeset
1501 msg = convertitem(current_arg, &format, p_va, flags,
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1502 levels, msgbuf, sizeof(msgbuf), &freelist);
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diff changeset
1503 if (msg) {
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1504 seterror(i+1, msg, levels, fname, custom_msg);
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diff changeset
1505 return cleanreturn(0, freelist);
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1506 }
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diff changeset
1507 continue;
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1508 }
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diff changeset
1509
61467
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1510 if (i < min) {
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diff changeset
1511 PyErr_Format(PyExc_TypeError, "Required argument "
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1512 "'%s' (pos %d) not found",
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diff changeset
1513 keyword, i+1);
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1514 return cleanreturn(0, freelist);
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1515 }
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diff changeset
1516 /* current code reports success when all required args
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1517 * fulfilled and no keyword args left, with no further
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1518 * validation. XXX Maybe skip this in debug build ?
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1519 */
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1520 if (!nkeywords)
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1521 return cleanreturn(1, freelist);
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1522
61467
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1523 /* We are into optional args, skip thru to any remaining
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diff changeset
1524 * keyword args */
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1525 msg = skipitem(&format, p_va, flags);
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1526 if (msg) {
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1527 PyErr_Format(PyExc_RuntimeError, "%s: '%s'", msg,
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diff changeset
1528 format);
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1529 return cleanreturn(0, freelist);
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1530 }
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1531 }
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1532
61467
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1533 if (!IS_END_OF_FORMAT(*format) && *format != '|') {
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1534 PyErr_Format(PyExc_RuntimeError,
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diff changeset
1535 "more argument specifiers than keyword list entries "
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1536 "(remaining format:'%s')", format);
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diff changeset
1537 return cleanreturn(0, freelist);
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1538 }
20715
5e6f8187bd48 vgetargskeywords:
Tim Peters <tim.peters@gmail.com>
parents: 20714
diff changeset
1539
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1540 /* make sure there are no extraneous keyword arguments */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1541 if (nkeywords > 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1542 PyObject *key, *value;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1543 Py_ssize_t pos = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1544 while (PyDict_Next(keywords, &pos, &key, &value)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1545 int match = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1546 char *ks;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1547 if (!PyUnicode_Check(key)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1548 PyErr_SetString(PyExc_TypeError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1549 "keywords must be strings");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1550 return cleanreturn(0, freelist);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1551 }
61717
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1552 /* check that _PyUnicode_AsString() result is not NULL */
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1553 ks = _PyUnicode_AsString(key);
61717
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1554 if (ks != NULL) {
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1555 for (i = 0; i < len; i++) {
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1556 if (!strcmp(ks, kwlist[i])) {
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1557 match = 1;
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1558 break;
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1559 }
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1560 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1561 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1562 if (!match) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1563 PyErr_Format(PyExc_TypeError,
61717
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1564 "'%U' is an invalid keyword "
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1565 "argument for this function",
61717
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1566 key);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1567 return cleanreturn(0, freelist);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1568 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1569 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1570 }
20723
6ac45244c41e vgetargskeywords()
Tim Peters <tim.peters@gmail.com>
parents: 20722
diff changeset
1571
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1572 return cleanreturn(1, freelist);
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1573 }
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1574
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1575
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1576 static char *
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1577 skipitem(const char **p_format, va_list *p_va, int flags)
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1578 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1579 const char *format = *p_format;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1580 char c = *format++;
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1581
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1582 switch (c) {
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1583
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1584 /* simple codes
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1585 * The individual types (second arg of va_arg) are irrelevant */
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1586
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1587 case 'b': /* byte -- very short int */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1588 case 'B': /* byte as bitfield */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1589 case 'h': /* short int */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1590 case 'H': /* short int as bitfield */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1591 case 'i': /* int */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1592 case 'I': /* int sized bitfield */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1593 case 'l': /* long int */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1594 case 'k': /* long int sized bitfield */
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1595 #ifdef HAVE_LONG_LONG
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1596 case 'L': /* PY_LONG_LONG */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1597 case 'K': /* PY_LONG_LONG sized bitfield */
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1598 #endif
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1599 case 'f': /* float */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1600 case 'd': /* double */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1601 case 'D': /* complex double */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1602 case 'c': /* char */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1603 case 'C': /* unicode char */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1604 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1605 (void) va_arg(*p_va, void *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1606 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1607 }
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1608
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1609 case 'n': /* Py_ssize_t */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1610 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1611 (void) va_arg(*p_va, Py_ssize_t *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1612 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1613 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1614
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1615 /* string codes */
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1616
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1617 case 'e': /* string with encoding */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1618 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1619 (void) va_arg(*p_va, const char *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1620 if (!(*format == 's' || *format == 't'))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1621 /* after 'e', only 's' and 't' is allowed */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1622 goto err;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1623 format++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1624 /* explicit fallthrough to string cases */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1625 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1626
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1627 case 's': /* string */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1628 case 'z': /* string or None */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1629 case 'y': /* bytes */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1630 case 'u': /* unicode string */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1631 case 'w': /* buffer, read-write */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1632 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1633 (void) va_arg(*p_va, char **);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1634 if (*format == '#') {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1635 if (flags & FLAG_SIZE_T)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1636 (void) va_arg(*p_va, Py_ssize_t *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1637 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1638 (void) va_arg(*p_va, int *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1639 format++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1640 } else if ((c == 's' || c == 'z' || c == 'y') && *format == '*') {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1641 format++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1642 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1643 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1644 }
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1645
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1646 /* object codes */
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1647
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1648 case 'S': /* string object */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1649 case 'Y': /* string object */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1650 case 'U': /* unicode string object */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1651 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1652 (void) va_arg(*p_va, PyObject **);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1653 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1654 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1655
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1656 case 'O': /* object */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1657 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1658 if (*format == '!') {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1659 format++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1660 (void) va_arg(*p_va, PyTypeObject*);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1661 (void) va_arg(*p_va, PyObject **);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1662 }
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diff changeset
1663 else if (*format == '&') {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1664 typedef int (*converter)(PyObject *, void *);
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parents: 57549
diff changeset
1665 (void) va_arg(*p_va, converter);
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diff changeset
1666 (void) va_arg(*p_va, void *);
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diff changeset
1667 format++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1668 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1669 else {
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diff changeset
1670 (void) va_arg(*p_va, PyObject **);
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diff changeset
1671 }
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diff changeset
1672 break;
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diff changeset
1673 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1674
61467
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diff changeset
1675 case '(': /* bypass tuple, not handled at all previously */
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diff changeset
1676 {
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diff changeset
1677 char *msg;
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diff changeset
1678 for (;;) {
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diff changeset
1679 if (*format==')')
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diff changeset
1680 break;
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diff changeset
1681 if (IS_END_OF_FORMAT(*format))
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parents: 57549
diff changeset
1682 return "Unmatched left paren in format "
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diff changeset
1683 "string";
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diff changeset
1684 msg = skipitem(&format, p_va, flags);
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diff changeset
1685 if (msg)
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diff changeset
1686 return msg;
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diff changeset
1687 }
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diff changeset
1688 format++;
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diff changeset
1689 break;
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1690 }
45548
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Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
1691
61467
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diff changeset
1692 case ')':
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1693 return "Unmatched right paren in format string";
45548
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Christian Heimes <christian@cheimes.de>
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diff changeset
1694
61467
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diff changeset
1695 default:
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1696 err:
61467
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diff changeset
1697 return "impossible<bad format char>";
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1698
61467
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1699 }
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1700
61467
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diff changeset
1701 *p_format = format;
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parents: 57549
diff changeset
1702 return NULL;
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1703 }
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1704
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1705
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1706 int
36750
92ba72484ff3 Use Py_ssize_t for PyArg_UnpackTuple arguments.
Martin v. Löwis <martin@v.loewis.de>
parents: 36675
diff changeset
1707 PyArg_UnpackTuple(PyObject *args, const char *name, Py_ssize_t min, Py_ssize_t max, ...)
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1708 {
61467
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diff changeset
1709 Py_ssize_t i, l;
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diff changeset
1710 PyObject **o;
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diff changeset
1711 va_list vargs;
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1712
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1713 #ifdef HAVE_STDARG_PROTOTYPES
61467
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diff changeset
1714 va_start(vargs, max);
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1715 #else
61467
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diff changeset
1716 va_start(vargs);
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1717 #endif
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1718
61467
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diff changeset
1719 assert(min >= 0);
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diff changeset
1720 assert(min <= max);
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diff changeset
1721 if (!PyTuple_Check(args)) {
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parents: 57549
diff changeset
1722 PyErr_SetString(PyExc_SystemError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1723 "PyArg_UnpackTuple() argument list is not a tuple");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1724 return 0;
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parents: 57549
diff changeset
1725 }
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diff changeset
1726 l = PyTuple_GET_SIZE(args);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1727 if (l < min) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1728 if (name != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1729 PyErr_Format(
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1730 PyExc_TypeError,
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parents: 57549
diff changeset
1731 "%s expected %s%zd arguments, got %zd",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1732 name, (min == max ? "" : "at least "), min, l);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1733 else
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diff changeset
1734 PyErr_Format(
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diff changeset
1735 PyExc_TypeError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1736 "unpacked tuple should have %s%zd elements,"
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1737 " but has %zd",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1738 (min == max ? "" : "at least "), min, l);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1739 va_end(vargs);
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diff changeset
1740 return 0;
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diff changeset
1741 }
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diff changeset
1742 if (l > max) {
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parents: 57549
diff changeset
1743 if (name != NULL)
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diff changeset
1744 PyErr_Format(
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diff changeset
1745 PyExc_TypeError,
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parents: 57549
diff changeset
1746 "%s expected %s%zd arguments, got %zd",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1747 name, (min == max ? "" : "at most "), max, l);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1748 else
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parents: 57549
diff changeset
1749 PyErr_Format(
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diff changeset
1750 PyExc_TypeError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1751 "unpacked tuple should have %s%zd elements,"
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1752 " but has %zd",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1753 (min == max ? "" : "at most "), max, l);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1754 va_end(vargs);
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diff changeset
1755 return 0;
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diff changeset
1756 }
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diff changeset
1757 for (i = 0; i < l; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1758 o = va_arg(vargs, PyObject **);
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diff changeset
1759 *o = PyTuple_GET_ITEM(args, i);
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diff changeset
1760 }
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diff changeset
1761 va_end(vargs);
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diff changeset
1762 return 1;
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1763 }
35449
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1764
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1765
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1766 /* For type constructors that don't take keyword args
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1767 *
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1768 * Sets a TypeError and returns 0 if the kwds dict is
40450
cc992d75d5b3 Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents: 39442
diff changeset
1769 * not empty, returns 1 otherwise
35449
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1770 */
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1771 int
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 35552
diff changeset
1772 _PyArg_NoKeywords(const char *funcname, PyObject *kw)
35449
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1773 {
61467
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1774 if (kw == NULL)
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1775 return 1;
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diff changeset
1776 if (!PyDict_CheckExact(kw)) {
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parents: 57549
diff changeset
1777 PyErr_BadInternalCall();
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diff changeset
1778 return 0;
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diff changeset
1779 }
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1780 if (PyDict_Size(kw) == 0)
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1781 return 1;
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1782
61467
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1783 PyErr_Format(PyExc_TypeError, "%s does not take keyword arguments",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1784 funcname);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1785 return 0;
35449
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1786 }
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36988
diff changeset
1787 #ifdef __cplusplus
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36988
diff changeset
1788 };
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36988
diff changeset
1789 #endif