annotate Python/marshal.c @ 2602:bee2aed416d6 legacy-trunk

New documentation on the CD module.
author Sjoerd Mullender <sjoerd@acm.org>
date Tue, 28 Mar 1995 11:56:52 +0000
parents 4dd1af0ddef0
children 0261bf5b3819
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1 /***********************************************************
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2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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3 The Netherlands.
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4
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5 All Rights Reserved
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6
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7 Permission to use, copy, modify, and distribute this software and its
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8 documentation for any purpose and without fee is hereby granted,
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9 provided that the above copyright notice appear in all copies and that
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10 both that copyright notice and this permission notice appear in
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11 supporting documentation, and that the names of Stichting Mathematisch
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12 Centrum or CWI not be used in advertising or publicity pertaining to
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13 distribution of the software without specific, written prior permission.
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14
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15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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22
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23 ******************************************************************/
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24
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25 /* Write Python objects to files and read them back.
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26 This is intended for writing and reading compiled Python code only;
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27 a true persistent storage facility would be much harder, since
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28 it would have to take circular links and sharing into account. */
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29
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30 #include "allobjects.h"
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31 #include "modsupport.h"
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32 #include "longintrepr.h"
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33 #include "compile.h"
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34 #include "marshal.h"
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35
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36 #include <errno.h>
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37
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38 #define TYPE_NULL '0'
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39 #define TYPE_NONE 'N'
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40 #define TYPE_INT 'i'
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41 #define TYPE_FLOAT 'f'
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42 #define TYPE_LONG 'l'
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43 #define TYPE_STRING 's'
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44 #define TYPE_TUPLE '('
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45 #define TYPE_LIST '['
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46 #define TYPE_DICT '{'
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47 #define TYPE_CODE 'C'
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48 #define TYPE_UNKNOWN '?'
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49
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50 typedef struct {
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51 FILE *fp;
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52 /* If fp == NULL, the following are valid: */
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53 object *str;
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54 char *ptr;
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55 char *end;
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56 } WFILE;
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57
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58 #define w_byte(c, p) if (((p)->fp)) putc((c), (p)->fp); \
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59 else if ((p)->ptr != (p)->end) *(p)->ptr++ = (c); \
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60 else w_more(c, p)
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61
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62 static void
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63 w_more(c, p)
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64 char c;
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65 WFILE *p;
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66 {
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67 int size, newsize;
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68 if (p->str == NULL)
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69 return; /* An error already occurred */
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70 size = getstringsize(p->str);
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71 newsize = size + 1024;
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72 if (resizestring(&p->str, newsize) != 0) {
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73 p->ptr = p->end = NULL;
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74 }
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75 else {
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76 p->ptr = GETSTRINGVALUE((stringobject *)p->str) + size;
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77 p->end = GETSTRINGVALUE((stringobject *)p->str) + newsize;
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78 *p->ptr++ = c;
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79 }
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80 }
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81
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82 static void
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83 w_string(s, n, p)
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84 char *s;
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85 int n;
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86 WFILE *p;
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87 {
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88 if (p->fp != NULL) {
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89 fwrite(s, 1, n, p->fp);
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90 }
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91 else {
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92 while (--n >= 0) {
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93 w_byte(*s, p);
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94 s++;
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95 }
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96 }
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97 }
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98
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99 static void
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100 w_short(x, p)
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101 int x;
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102 WFILE *p;
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103 {
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104 w_byte( x & 0xff, p);
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105 w_byte((x>> 8) & 0xff, p);
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106 }
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107
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108 static void
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109 w_long(x, p)
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110 long x;
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111 WFILE *p;
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112 {
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113 w_byte((int)( x & 0xff), p);
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114 w_byte((int)((x>> 8) & 0xff), p);
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115 w_byte((int)((x>>16) & 0xff), p);
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116 w_byte((int)((x>>24) & 0xff), p);
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117 }
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118
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119 static void
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120 w_object(v, p)
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121 object *v;
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122 WFILE *p;
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123 {
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124 int i, n;
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125
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126 if (v == NULL)
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127 w_byte(TYPE_NULL, p);
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128 else if (v == None)
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129 w_byte(TYPE_NONE, p);
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130 else if (is_intobject(v)) {
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131 w_byte(TYPE_INT, p);
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132 w_long(getintvalue(v), p);
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133 }
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134 else if (is_longobject(v)) {
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135 longobject *ob = (longobject *)v;
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136 w_byte(TYPE_LONG, p);
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137 n = ob->ob_size;
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138 w_long((long)n, p);
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139 if (n < 0)
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140 n = -n;
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141 for (i = 0; i < n; i++)
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142 w_short(ob->ob_digit[i], p);
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143 }
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144 else if (is_floatobject(v)) {
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145 extern void float_buf_repr PROTO((char *, floatobject *));
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146 char buf[256]; /* Plenty to format any double */
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147 float_buf_repr(buf, (floatobject *)v);
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148 n = strlen(buf);
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149 w_byte(TYPE_FLOAT, p);
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150 w_byte(n, p);
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151 w_string(buf, n, p);
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152 }
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153 else if (is_stringobject(v)) {
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154 w_byte(TYPE_STRING, p);
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155 n = getstringsize(v);
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156 w_long((long)n, p);
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157 w_string(getstringvalue(v), n, p);
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158 }
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159 else if (is_tupleobject(v)) {
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160 w_byte(TYPE_TUPLE, p);
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161 n = gettuplesize(v);
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162 w_long((long)n, p);
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163 for (i = 0; i < n; i++) {
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164 w_object(GETTUPLEITEM(v, i), p);
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165 }
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166 }
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167 else if (is_listobject(v)) {
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168 w_byte(TYPE_LIST, p);
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169 n = getlistsize(v);
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170 w_long((long)n, p);
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171 for (i = 0; i < n; i++) {
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172 w_object(getlistitem(v, i), p);
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173 }
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174 }
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175 else if (is_dictobject(v)) {
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176 int pos;
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177 object *key, *value;
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178 w_byte(TYPE_DICT, p);
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179 /* This one is NULL object terminated! */
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180 pos = 0;
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181 while (mappinggetnext(v, &pos, &key, &value)) {
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182 w_object(key, p);
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183 w_object(value, p);
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184 }
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185 w_object((object *)NULL, p);
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186 }
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187 else if (is_codeobject(v)) {
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188 codeobject *co = (codeobject *)v;
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189 w_byte(TYPE_CODE, p);
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190 w_object((object *)co->co_code, p);
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191 w_object(co->co_consts, p);
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192 w_object(co->co_names, p);
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193 w_object(co->co_filename, p);
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194 w_object(co->co_name, p);
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195 }
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196 else {
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197 w_byte(TYPE_UNKNOWN, p);
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diff changeset
198 }
267
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199 }
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200
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201 void
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202 wr_long(x, fp)
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203 long x;
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204 FILE *fp;
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205 {
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206 WFILE wf;
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207 wf.fp = fp;
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208 w_long(x, &wf);
267
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209 }
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210
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211 void
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212 wr_object(x, fp)
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213 object *x;
267
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214 FILE *fp;
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215 {
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216 WFILE wf;
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diff changeset
217 wf.fp = fp;
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218 w_object(x, &wf);
267
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219 }
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220
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diff changeset
221 typedef WFILE RFILE; /* Same struct with different invariants */
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diff changeset
222
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223 #define rs_byte(p) (((p)->ptr != (p)->end) ? (unsigned char)*(p)->ptr++ : EOF)
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224
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225 #define r_byte(p) ((p)->fp ? getc((p)->fp) : rs_byte(p))
267
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226
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diff changeset
227 static int
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228 r_string(s, n, p)
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diff changeset
229 char *s;
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diff changeset
230 int n;
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diff changeset
231 RFILE *p;
38f0054f44a7 Added separate main program for the Mac: macmain.c
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diff changeset
232 {
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diff changeset
233 if (p->fp != NULL)
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diff changeset
234 return fread(s, 1, n, p->fp);
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diff changeset
235 if (p->end - p->ptr < n)
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diff changeset
236 n = p->end - p->ptr;
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diff changeset
237 memcpy(s, p->ptr, n);
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diff changeset
238 p->ptr += n;
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diff changeset
239 return n;
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diff changeset
240 }
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241
38f0054f44a7 Added separate main program for the Mac: macmain.c
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diff changeset
242 static int
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diff changeset
243 r_short(p)
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diff changeset
244 RFILE *p;
267
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diff changeset
245 {
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246 register short x;
1191
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diff changeset
247 x = r_byte(p);
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248 x |= r_byte(p) << 8;
267
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diff changeset
249 /* XXX If your short is > 16 bits, add sign-extension here!!! */
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250 return x;
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diff changeset
251 }
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252
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diff changeset
253 static long
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diff changeset
254 r_long(p)
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diff changeset
255 RFILE *p;
267
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diff changeset
256 {
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257 register long x;
2503
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diff changeset
258 register FILE *fp = p->fp;
4dd1af0ddef0 various tuple related optimizations; remove unused b/w compat code from ceval.c
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diff changeset
259 if (fp) {
4dd1af0ddef0 various tuple related optimizations; remove unused b/w compat code from ceval.c
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diff changeset
260 x = getc(fp);
4dd1af0ddef0 various tuple related optimizations; remove unused b/w compat code from ceval.c
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parents: 2368
diff changeset
261 x |= (long)getc(fp) << 8;
4dd1af0ddef0 various tuple related optimizations; remove unused b/w compat code from ceval.c
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parents: 2368
diff changeset
262 x |= (long)getc(fp) << 16;
4dd1af0ddef0 various tuple related optimizations; remove unused b/w compat code from ceval.c
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parents: 2368
diff changeset
263 x |= (long)getc(fp) << 24;
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parents: 2368
diff changeset
264 }
4dd1af0ddef0 various tuple related optimizations; remove unused b/w compat code from ceval.c
Guido van Rossum <guido@python.org>
parents: 2368
diff changeset
265 else {
4dd1af0ddef0 various tuple related optimizations; remove unused b/w compat code from ceval.c
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diff changeset
266 x = rs_byte(p);
4dd1af0ddef0 various tuple related optimizations; remove unused b/w compat code from ceval.c
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diff changeset
267 x |= (long)rs_byte(p) << 8;
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diff changeset
268 x |= (long)rs_byte(p) << 16;
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diff changeset
269 x |= (long)rs_byte(p) << 24;
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diff changeset
270 }
267
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diff changeset
271 /* XXX If your long is > 32 bits, add sign-extension here!!! */
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272 return x;
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diff changeset
273 }
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274
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275 static object *
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diff changeset
276 r_object(p)
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diff changeset
277 RFILE *p;
267
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278 {
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279 object *v;
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280 long i, n;
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diff changeset
281 int type = r_byte(p);
267
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diff changeset
282
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283 switch (type) {
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diff changeset
284
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diff changeset
285 case EOF:
475
e2c3463c4d91 Use new exceptions.
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diff changeset
286 err_setstr(EOFError, "EOF read where object expected");
267
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diff changeset
287 return NULL;
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diff changeset
288
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diff changeset
289 case TYPE_NULL:
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diff changeset
290 return NULL;
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291
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diff changeset
292 case TYPE_NONE:
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293 INCREF(None);
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diff changeset
294 return None;
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diff changeset
295
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296 case TYPE_INT:
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297 return newintobject(r_long(p));
267
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Guido van Rossum <guido@python.org>
parents:
diff changeset
298
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
299 case TYPE_LONG:
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Guido van Rossum <guido@python.org>
parents:
diff changeset
300 {
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
301 int size;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
302 longobject *ob;
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
303 n = r_long(p);
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
304 size = n<0 ? -n : n;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
305 ob = alloclongobject(size);
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
306 if (ob == NULL)
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
307 return NULL;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
308 ob->ob_size = n;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
309 for (i = 0; i < size; i++)
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
310 ob->ob_digit[i] = r_short(p);
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
311 return (object *)ob;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
312 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
313
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
314 case TYPE_FLOAT:
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
315 {
1848
b724599401ff Merge back to main trunk
Guido van Rossum <guido@python.org>
parents: 1319
diff changeset
316 extern double atof PROTO((const char *));
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
317 char buf[256];
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
318 n = r_byte(p);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
319 if (r_string(buf, (int)n, p) != n) {
475
e2c3463c4d91 Use new exceptions.
Guido van Rossum <guido@python.org>
parents: 341
diff changeset
320 err_setstr(EOFError,
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
321 "EOF read where object expected");
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
322 return NULL;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
323 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
324 buf[n] = '\0';
1848
b724599401ff Merge back to main trunk
Guido van Rossum <guido@python.org>
parents: 1319
diff changeset
325 return newfloatobject(atof(buf));
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
326 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
327
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
328 case TYPE_STRING:
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
329 n = r_long(p);
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
330 v = newsizedstringobject((char *)NULL, n);
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
331 if (v != NULL) {
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
332 if (r_string(getstringvalue(v), (int)n, p) != n) {
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
333 DECREF(v);
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
334 v = NULL;
475
e2c3463c4d91 Use new exceptions.
Guido van Rossum <guido@python.org>
parents: 341
diff changeset
335 err_setstr(EOFError,
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
336 "EOF read where object expected");
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
337 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
338 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
339 return v;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
340
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
341 case TYPE_TUPLE:
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
342 n = r_long(p);
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
343 v = newtupleobject((int)n);
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
344 if (v == NULL)
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
345 return v;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
346 for (i = 0; i < n; i++)
2503
4dd1af0ddef0 various tuple related optimizations; remove unused b/w compat code from ceval.c
Guido van Rossum <guido@python.org>
parents: 2368
diff changeset
347 SETTUPLEITEM(v, (int)i, r_object(p));
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
348 return v;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
349
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
350 case TYPE_LIST:
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
351 n = r_long(p);
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
352 v = newlistobject((int)n);
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
353 if (v == NULL)
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
354 return v;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
355 for (i = 0; i < n; i++)
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
356 setlistitem(v, (int)i, r_object(p));
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
357 return v;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
358
279
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
359 case TYPE_DICT:
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
360 v = newdictobject();
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
361 if (v == NULL)
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
362 return NULL;
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
363 for (;;) {
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
364 object *key, *val;
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
365 key = r_object(p);
279
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
366 if (key == NULL)
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
367 break;
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
368 val = r_object(p);
279
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
369 dict2insert(v, key, val);
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
370 DECREF(key);
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
371 XDECREF(val);
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
372 }
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
373 return v;
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
374
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
375 case TYPE_CODE:
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
376 {
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
377 object *code = r_object(p);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
378 object *consts = r_object(p);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
379 object *names = r_object(p);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
380 object *filename = r_object(p);
1257
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 1191
diff changeset
381 object *name = r_object(p);
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
382 if (!err_occurred()) {
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
383 v = (object *) newcodeobject(code,
1257
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 1191
diff changeset
384 consts, names, filename, name);
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
385 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
386 else
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
387 v = NULL;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
388 XDECREF(code);
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
389 XDECREF(consts);
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
390 XDECREF(names);
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
391 XDECREF(filename);
1929
f07d66c162cb Plug memory leak for code objects
Guido van Rossum <guido@python.org>
parents: 1848
diff changeset
392 XDECREF(name);
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
393
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
394 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
395 return v;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
396
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
397 default:
475
e2c3463c4d91 Use new exceptions.
Guido van Rossum <guido@python.org>
parents: 341
diff changeset
398 err_setstr(TypeError, "read unknown object");
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
399 return NULL;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
400
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
401 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
402 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
403
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
404 long
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
405 rd_long(fp)
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
406 FILE *fp;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
407 {
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
408 RFILE rf;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
409 rf.fp = fp;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
410 return r_long(&rf);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
411 }
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
412
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
413 object *
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
414 rd_object(fp)
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
415 FILE *fp;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
416 {
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
417 RFILE rf;
2052
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 1929
diff changeset
418 if (err_occurred()) {
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 1929
diff changeset
419 fprintf(stderr, "XXX rd_object called with exception set\n");
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 1929
diff changeset
420 return NULL;
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 1929
diff changeset
421 }
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
422 rf.fp = fp;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
423 return r_object(&rf);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
424 }
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
425
1270
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
426 object *
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
427 rds_object(str, len)
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
428 char *str;
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
429 int len;
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
430 {
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
431 RFILE rf;
2052
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 1929
diff changeset
432 if (err_occurred()) {
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 1929
diff changeset
433 fprintf(stderr, "XXX rds_object called with exception set\n");
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 1929
diff changeset
434 return NULL;
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 1929
diff changeset
435 }
1270
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
436 rf.fp = NULL;
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
437 rf.str = NULL;
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
438 rf.ptr = str;
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
439 rf.end = str + len;
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
440 return r_object(&rf);
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
441 }
14369a5e6167 Support for frozen scripts; added -i option.
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
442
279
9c924f9c3b16 Add marshalling for dictionaries.
Guido van Rossum <guido@python.org>
parents: 272
diff changeset
443 /* And an interface for Python programs... */
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
444
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
445 static object *
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
446 marshal_dump(self, args)
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
447 object *self;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
448 object *args;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
449 {
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
450 WFILE wf;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
451 object *x;
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
452 object *f;
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
453 if (!getargs(args, "(OO)", &x, &f))
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
454 return NULL;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
455 if (!is_fileobject(f)) {
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
456 err_setstr(TypeError, "marshal.dump() 2nd arg must be file");
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
457 return NULL;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
458 }
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
459 wf.fp = getfilefile(f);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
460 wf.str = NULL;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
461 wf.ptr = wf.end = NULL;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
462 w_object(x, &wf);
267
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Guido van Rossum <guido@python.org>
parents:
diff changeset
463 INCREF(None);
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Guido van Rossum <guido@python.org>
parents:
diff changeset
464 return None;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
465 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
466
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
467 static object *
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
468 marshal_load(self, args)
267
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Guido van Rossum <guido@python.org>
parents:
diff changeset
469 object *self;
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
470 object *args;
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
471 {
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
472 RFILE rf;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
473 object *f;
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
474 object *v;
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
475 if (!getargs(args, "O", &f))
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
476 return NULL;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
477 if (!is_fileobject(f)) {
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
478 err_setstr(TypeError, "marshal.load() arg must be file");
267
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Guido van Rossum <guido@python.org>
parents:
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479 return NULL;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
480 }
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
481 rf.fp = getfilefile(f);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
482 rf.str = NULL;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
483 rf.ptr = rf.end = NULL;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
484 err_clear();
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
485 v = r_object(&rf);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
486 if (err_occurred()) {
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
487 XDECREF(v);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
488 v = NULL;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
489 }
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
490 return v;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
491 }
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
492
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
493 static object *
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
494 marshal_dumps(self, args)
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
495 object *self;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
496 object *args;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
497 {
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
498 WFILE wf;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
499 object *x;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
500 if (!getargs(args, "O", &x))
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
501 return NULL;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
502 wf.fp = NULL;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
503 wf.str = newsizedstringobject((char *)NULL, 50);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
504 if (wf.str == NULL)
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
505 return NULL;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
506 wf.ptr = GETSTRINGVALUE((stringobject *)wf.str);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
507 wf.end = wf.ptr + getstringsize(wf.str);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
508 w_object(x, &wf);
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
509 if (wf.str != NULL)
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
510 resizestring(&wf.str,
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
511 (int) (wf.ptr - GETSTRINGVALUE((stringobject *)wf.str)));
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
512 return wf.str;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
513 }
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
514
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
515 static object *
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
516 marshal_loads(self, args)
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
517 object *self;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
518 object *args;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
519 {
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
520 RFILE rf;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
521 object *v;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
522 char *s;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
523 int n;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
524 if (!getargs(args, "s#", &s, &n))
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
525 return NULL;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
526 rf.fp = NULL;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
527 rf.str = args;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
528 rf.ptr = s;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
529 rf.end = s + n;
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
530 err_clear();
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
531 v = r_object(&rf);
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
532 if (err_occurred()) {
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
533 XDECREF(v);
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
534 v = NULL;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
535 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
536 return v;
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
537 }
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
538
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
539 static struct methodlist marshal_methods[] = {
1191
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
540 {"dump", marshal_dump},
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
541 {"load", marshal_load},
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
542 {"dumps", marshal_dumps},
38f0054f44a7 Added separate main program for the Mac: macmain.c
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
543 {"loads", marshal_loads},
267
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
544 {NULL, NULL} /* sentinel */
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
545 };
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
546
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
547 void
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
548 initmarshal()
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
549 {
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
550 (void) initmodule("marshal", marshal_methods);
457661e47c7b Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
551 }