Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | #include "asn1c_internal.h" |
Lev Walkin | 59004fa | 2004-08-20 13:37:01 +0000 | [diff] [blame] | 2 | #include "asn1c_misc.h" |
| 3 | |
Lev Walkin | 082cadc | 2005-08-14 02:18:27 +0000 | [diff] [blame] | 4 | #include <asn1fix_crange.h> /* constraint groker from libasn1fix */ |
| 5 | #include <asn1fix_export.h> /* other exportable stuff from libasn1fix */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 6 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 7 | /* |
Lev Walkin | 801fabc | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 8 | * Checks that the given string is not a reserved C/C++ keyword. |
Lev Walkin | 3fe2e12 | 2005-03-03 21:29:27 +0000 | [diff] [blame] | 9 | * ISO/IEC 9899:1999 (C99), A.1.2 |
Lev Walkin | 801fabc | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 10 | */ |
| 11 | static char *res_kwd[] = { |
Lev Walkin | 3fe2e12 | 2005-03-03 21:29:27 +0000 | [diff] [blame] | 12 | "const", "auto", "register", "volatile", "restrict", "extern", |
| 13 | "static", "inline", |
| 14 | "signed", "unsigned", |
| 15 | "void", "char", "short", "int", "long", "float", "double", |
| 16 | "enum", "union", "struct", "typedef", "class", |
| 17 | "switch", "case", "default", "break", "continue", |
| 18 | "if", "else", "do", "for", "while", "goto", |
| 19 | "sizeof", "return" |
| 20 | }; |
Lev Walkin | 801fabc | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 21 | static int |
| 22 | reserved_keyword(const char *str) { |
Lev Walkin | c46b7cb | 2006-08-18 02:27:55 +0000 | [diff] [blame] | 23 | size_t i; |
Lev Walkin | 801fabc | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 24 | for(i = 0 ; i < sizeof(res_kwd)/sizeof(res_kwd[0]); i++) { |
| 25 | if(strcmp(str, res_kwd[i]) == 0) |
| 26 | return 1; |
| 27 | } |
| 28 | return 0; |
| 29 | } |
| 30 | |
| 31 | /* |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 32 | * Construct identifier from multiple parts. |
| 33 | * Convert unsafe characters to underscores. |
| 34 | */ |
| 35 | char * |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 36 | asn1c_make_identifier(enum ami_flags_e flags, asn1p_expr_t *expr, ...) { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 37 | static char *storage; |
| 38 | static int storage_size; |
| 39 | int nodelimiter = 0; |
| 40 | va_list ap; |
| 41 | char *str; |
Lev Walkin | 801fabc | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 42 | char *nextstr; |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 43 | char *first = 0; |
| 44 | char *second = 0; |
Lev Walkin | c46b7cb | 2006-08-18 02:27:55 +0000 | [diff] [blame] | 45 | ssize_t size; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 46 | char *p; |
| 47 | |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 48 | if(expr) { |
| 49 | /* |
| 50 | * Estimate the necessary storage size |
| 51 | */ |
| 52 | if(expr->Identifier == NULL) |
| 53 | return "Member"; |
| 54 | size = strlen(expr->Identifier); |
| 55 | if(expr->spec_index != -1) { |
| 56 | static char buf[32]; |
| 57 | second = buf; |
| 58 | size += 1 + snprintf(buf, sizeof buf, "%dP%d", |
| 59 | expr->_lineno, expr->spec_index); |
| 60 | } |
| 61 | } else { |
| 62 | size = -1; |
| 63 | } |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 64 | |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 65 | va_start(ap, expr); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 66 | while((str = va_arg(ap, char *))) |
| 67 | size += 1 + strlen(str); |
| 68 | va_end(ap); |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 69 | if(size == -1) return NULL; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 70 | |
| 71 | /* |
| 72 | * Make sure we have this amount of storage. |
| 73 | */ |
| 74 | if(storage_size <= size) { |
| 75 | if(storage) free(storage); |
| 76 | storage = malloc(size + 1); |
| 77 | if(storage) { |
| 78 | storage_size = size; |
| 79 | } else { |
| 80 | storage_size = 0; |
| 81 | return NULL; |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | /* |
| 86 | * Fill-in the storage. |
| 87 | */ |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 88 | va_start(ap, expr); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 89 | p = storage; |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 90 | nextstr = ""; |
| 91 | for(p = storage, str = 0; str || nextstr; str = nextstr) { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 92 | int subst_made = 0; |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 93 | nextstr = second ? second : va_arg(ap, char *); |
| 94 | |
| 95 | if(str == 0) { |
| 96 | if(expr) { |
| 97 | str = expr->Identifier; |
| 98 | first = str; |
| 99 | second = 0; |
| 100 | } else { |
| 101 | first = nextstr; |
| 102 | continue; |
| 103 | } |
| 104 | } |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 105 | |
| 106 | if(str[0] == ' ' && str[1] == '\0') { |
| 107 | *p++ = ' '; |
| 108 | nodelimiter = 1; /* No delimiter */ |
| 109 | continue; |
| 110 | } |
| 111 | |
Lev Walkin | 22b5ed4 | 2006-09-13 02:51:20 +0000 | [diff] [blame] | 112 | if(str != first && !nodelimiter && !(flags & AMI_NODELIMITER)) |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 113 | *p++ = '_'; /* Delimiter between tokens */ |
| 114 | nodelimiter = 0; |
| 115 | |
Lev Walkin | 801fabc | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 116 | /* |
| 117 | * If it is a single argument, check that it does not clash |
| 118 | * with C/C++ language keywords. |
| 119 | */ |
| 120 | if((flags & AMI_CHECK_RESERVED) |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 121 | && str == first && !nextstr && reserved_keyword(str)) { |
Lev Walkin | 801fabc | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 122 | *p++ = toupper(*str++); |
| 123 | /* Fall through */ |
| 124 | } |
| 125 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 126 | for(; *str; str++) { |
| 127 | if(isalnum(*str)) { |
| 128 | *p++ = *str; |
| 129 | subst_made = 0; |
| 130 | } else if(!subst_made++) { |
Lev Walkin | 801fabc | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 131 | if((flags & AMI_MASK_ONLY_SPACES) |
| 132 | && !isspace(*str)) { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 133 | *p ++ = *str; |
| 134 | } else { |
| 135 | *p++ = '_'; |
| 136 | } |
| 137 | } |
| 138 | } |
| 139 | } |
| 140 | va_end(ap); |
| 141 | *p = '\0'; |
| 142 | |
| 143 | assert((p - storage) <= storage_size); |
| 144 | |
| 145 | return storage; |
| 146 | } |
| 147 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 148 | char * |
| 149 | asn1c_type_name(arg_t *arg, asn1p_expr_t *expr, enum tnfmt _format) { |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 150 | asn1p_expr_t *exprid = 0; |
Lev Walkin | 5a8219a | 2004-09-08 00:28:57 +0000 | [diff] [blame] | 151 | asn1p_expr_t *top_parent; |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 152 | asn1p_expr_t *terminal; |
Lev Walkin | 22b5ed4 | 2006-09-13 02:51:20 +0000 | [diff] [blame] | 153 | int stdname = 0; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 154 | char *typename; |
| 155 | |
Lev Walkin | 5a8219a | 2004-09-08 00:28:57 +0000 | [diff] [blame] | 156 | /* Rewind to the topmost parent expression */ |
| 157 | if((top_parent = expr->parent_expr)) |
| 158 | while(top_parent->parent_expr) |
| 159 | top_parent = top_parent->parent_expr; |
| 160 | |
Lev Walkin | 725883b | 2006-10-09 12:07:58 +0000 | [diff] [blame] | 161 | if(0) DEBUG("asn1c_type_name(%s: 0x%x)", |
| 162 | expr->Identifier, expr->expr_type); |
Lev Walkin | c2a7509 | 2006-03-14 11:52:12 +0000 | [diff] [blame] | 163 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 164 | switch(expr->expr_type) { |
| 165 | case A1TC_REFERENCE: |
| 166 | typename = expr->reference->components[ |
| 167 | expr->reference->comp_count-1].name; |
| 168 | if(typename[0] == '&') { |
| 169 | arg_t tmp = *arg; |
| 170 | |
| 171 | /* |
| 172 | * This is a reference to a type defined in a class. |
| 173 | * Resolve it and use instead. |
| 174 | */ |
Lev Walkin | b85a813 | 2005-08-18 13:38:19 +0000 | [diff] [blame] | 175 | tmp.expr = asn1f_class_access_ex(arg->asn, |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 176 | arg->expr->module, arg->expr, expr->rhs_pspecs, expr->reference); |
Lev Walkin | c2a7509 | 2006-03-14 11:52:12 +0000 | [diff] [blame] | 177 | if(!tmp.expr) return NULL; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 178 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 179 | return asn1c_type_name(&tmp, tmp.expr, _format); |
Lev Walkin | 5a8219a | 2004-09-08 00:28:57 +0000 | [diff] [blame] | 180 | } |
| 181 | |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 182 | terminal = asn1f_find_terminal_type_ex(arg->asn, expr); |
| 183 | |
Lev Walkin | c828571 | 2005-03-04 22:18:20 +0000 | [diff] [blame] | 184 | if(_format == TNF_RSAFE) { |
Lev Walkin | c828571 | 2005-03-04 22:18:20 +0000 | [diff] [blame] | 185 | if(terminal && terminal->expr_type & ASN_CONSTR_MASK) { |
| 186 | typename = terminal->Identifier; |
| 187 | } |
| 188 | } |
| 189 | |
Lev Walkin | 8dd0eed | 2004-09-17 06:32:12 +0000 | [diff] [blame] | 190 | if(_format == TNF_CTYPE) { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 191 | /* |
Lev Walkin | 8dd0eed | 2004-09-17 06:32:12 +0000 | [diff] [blame] | 192 | * If the component references the type itself, |
Lev Walkin | c828571 | 2005-03-04 22:18:20 +0000 | [diff] [blame] | 193 | * switch to a recursion-safe type naming |
Lev Walkin | 8dd0eed | 2004-09-17 06:32:12 +0000 | [diff] [blame] | 194 | * ("struct foo" instead of "foo_t"). |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 195 | */ |
Lev Walkin | 8dd0eed | 2004-09-17 06:32:12 +0000 | [diff] [blame] | 196 | if(terminal && terminal == top_parent) { |
| 197 | _format = TNF_RSAFE; |
Lev Walkin | 5a8219a | 2004-09-08 00:28:57 +0000 | [diff] [blame] | 198 | } |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 199 | } |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 200 | |
| 201 | if(terminal && terminal->spec_index != -1) { |
| 202 | exprid = terminal; |
| 203 | typename = 0; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 204 | } |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 205 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 206 | break; |
| 207 | case ASN_BASIC_INTEGER: |
| 208 | case ASN_BASIC_ENUMERATED: |
Lev Walkin | c78cbfb | 2004-09-14 12:47:45 +0000 | [diff] [blame] | 209 | case ASN_BASIC_REAL: |
Lev Walkin | 082cadc | 2005-08-14 02:18:27 +0000 | [diff] [blame] | 210 | if((expr->expr_type == ASN_BASIC_REAL |
| 211 | && (arg->flags & A1C_USE_NATIVE_TYPES)) |
| 212 | || asn1c_type_fits_long(arg, expr)) { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 213 | switch(_format) { |
| 214 | case TNF_CTYPE: |
| 215 | case TNF_RSAFE: |
Lev Walkin | c78cbfb | 2004-09-14 12:47:45 +0000 | [diff] [blame] | 216 | if(expr->expr_type == ASN_BASIC_REAL) |
| 217 | return "double"; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 218 | else |
Lev Walkin | 475d91f | 2005-02-25 12:09:55 +0000 | [diff] [blame] | 219 | return "long"; |
Lev Walkin | 22b5ed4 | 2006-09-13 02:51:20 +0000 | [diff] [blame] | 220 | default: |
| 221 | typename = 0; |
| 222 | switch(expr->expr_type) { |
| 223 | case ASN_BASIC_INTEGER: |
| 224 | typename = "NativeInteger"; break; |
| 225 | case ASN_BASIC_ENUMERATED: |
| 226 | typename = "NativeEnumerated"; break; |
| 227 | case ASN_BASIC_REAL: |
| 228 | typename = "NativeReal"; break; |
| 229 | default: |
| 230 | break; |
| 231 | } |
| 232 | break; |
Lev Walkin | c78cbfb | 2004-09-14 12:47:45 +0000 | [diff] [blame] | 233 | } |
Lev Walkin | 22b5ed4 | 2006-09-13 02:51:20 +0000 | [diff] [blame] | 234 | if(typename) { |
| 235 | if(_format != TNF_INCLUDE) |
| 236 | return typename; |
| 237 | stdname = 1; |
| 238 | break; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 239 | } |
| 240 | } |
| 241 | /* Fall through */ |
| 242 | default: |
Lev Walkin | 0e22b98 | 2004-08-25 02:03:26 +0000 | [diff] [blame] | 243 | if(expr->expr_type |
| 244 | & (ASN_CONSTR_MASK | ASN_BASIC_MASK | ASN_STRING_MASK)) { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 245 | if(_format == TNF_RSAFE) |
| 246 | _format = TNF_CTYPE; |
Lev Walkin | 22b5ed4 | 2006-09-13 02:51:20 +0000 | [diff] [blame] | 247 | stdname = 1; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 248 | typename = ASN_EXPR_TYPE2STR(expr->expr_type); |
| 249 | } else { |
Lev Walkin | 8dd0eed | 2004-09-17 06:32:12 +0000 | [diff] [blame] | 250 | _format = TNF_RSAFE; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 251 | typename = expr->Identifier; |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | switch(_format) { |
| 256 | case TNF_UNMODIFIED: |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 257 | return asn1c_make_identifier(AMI_MASK_ONLY_SPACES, |
| 258 | 0, exprid ? exprid->Identifier : typename, 0); |
Lev Walkin | 22b5ed4 | 2006-09-13 02:51:20 +0000 | [diff] [blame] | 259 | case TNF_INCLUDE: |
| 260 | return asn1c_make_identifier( |
| 261 | AMI_MASK_ONLY_SPACES | AMI_NODELIMITER, |
| 262 | 0, stdname ? "<" : "\"", |
| 263 | exprid ? exprid->Identifier : typename, |
| 264 | stdname ? ".h>" : ".h\"", 0); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 265 | case TNF_SAFE: |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 266 | return asn1c_make_identifier(0, exprid, typename, 0); |
Lev Walkin | c828571 | 2005-03-04 22:18:20 +0000 | [diff] [blame] | 267 | case TNF_CTYPE: /* C type */ |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 268 | return asn1c_make_identifier(0, exprid, |
| 269 | exprid?"t":typename, exprid?0:"t", 0); |
Lev Walkin | c828571 | 2005-03-04 22:18:20 +0000 | [diff] [blame] | 270 | case TNF_RSAFE: /* Recursion-safe type */ |
Lev Walkin | a00d6b3 | 2006-03-21 03:40:38 +0000 | [diff] [blame] | 271 | return asn1c_make_identifier(AMI_CHECK_RESERVED, 0, |
Lev Walkin | c828571 | 2005-03-04 22:18:20 +0000 | [diff] [blame] | 272 | "struct", " ", typename, 0); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 273 | } |
| 274 | |
Lev Walkin | 8dd0eed | 2004-09-17 06:32:12 +0000 | [diff] [blame] | 275 | assert(!"unreachable"); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 276 | return typename; |
| 277 | } |
| 278 | |
Lev Walkin | 082cadc | 2005-08-14 02:18:27 +0000 | [diff] [blame] | 279 | /* |
| 280 | * Check whether the specified INTEGER or ENUMERATED type can be represented |
| 281 | * using the generic 'long' type. |
| 282 | */ |
| 283 | enum asn1c_fitslong_e |
| 284 | asn1c_type_fits_long(arg_t *arg, asn1p_expr_t *expr) { |
| 285 | asn1cnst_range_t *range = 0; |
| 286 | asn1cnst_edge_t left; |
| 287 | asn1cnst_edge_t right; |
| 288 | asn1p_expr_t *v; |
| 289 | |
| 290 | /* |
| 291 | * Since we don't know the sizeof(long) on the possible target platform |
| 292 | * which will be compiling the code generated by asn1c, let's play it |
| 293 | * simple: long's range is equal to or greater than int32_t. |
Lev Walkin | 4c97bd6 | 2005-08-15 01:01:24 +0000 | [diff] [blame] | 294 | * NOTE: the most negative integer cannot be written in C, as the C99 |
| 295 | * standard will give it an unsigned type. |
| 296 | * It is defined here as a constant expression. |
Lev Walkin | 082cadc | 2005-08-14 02:18:27 +0000 | [diff] [blame] | 297 | */ |
Lev Walkin | c08c3cf | 2005-08-15 01:04:48 +0000 | [diff] [blame] | 298 | #define RIGHTMAX 2147483647 /* of 32-bit integer type */ |
| 299 | #define LEFTMIN (-RIGHTMAX-1) /* of 32-bit integer type */ |
Lev Walkin | 082cadc | 2005-08-14 02:18:27 +0000 | [diff] [blame] | 300 | |
| 301 | /* Descend to the terminal type */ |
| 302 | expr = asn1f_find_terminal_type_ex(arg->asn, expr); |
| 303 | if(expr == 0) return FL_NOTFIT; |
| 304 | |
| 305 | /* The "fits into long" operation is relevant only for integer types */ |
| 306 | switch(expr->expr_type) { |
| 307 | case ASN_BASIC_INTEGER: |
| 308 | case ASN_BASIC_ENUMERATED: |
| 309 | break; |
| 310 | default: |
| 311 | return FL_NOTFIT; |
| 312 | } |
| 313 | |
| 314 | /* |
| 315 | * First, evaluate the range of explicitly given identifiers. |
| 316 | */ |
| 317 | TQ_FOR(v, &(expr->members), next) { |
| 318 | if(v->expr_type != A1TC_UNIVERVAL) |
| 319 | continue; |
| 320 | if(v->value->value.v_integer < LEFTMIN |
| 321 | || v->value->value.v_integer > RIGHTMAX) |
| 322 | return FL_NOTFIT; |
| 323 | } |
| 324 | |
Lev Walkin | 4b55341 | 2005-08-14 14:45:44 +0000 | [diff] [blame] | 325 | if(!expr->combined_constraints) |
| 326 | return (arg->flags & A1C_USE_NATIVE_TYPES) |
| 327 | ? FL_FORCED : FL_NOTFIT; |
| 328 | |
Lev Walkin | 082cadc | 2005-08-14 02:18:27 +0000 | [diff] [blame] | 329 | /* |
Lev Walkin | 4b55341 | 2005-08-14 14:45:44 +0000 | [diff] [blame] | 330 | * Second, if -fbless-SIZE is given, the (SIZE()) constraint may be |
| 331 | * applied (non-standard! but we can deal with this) to the type. |
| 332 | * Check the range. |
Lev Walkin | 082cadc | 2005-08-14 02:18:27 +0000 | [diff] [blame] | 333 | */ |
Lev Walkin | 4b55341 | 2005-08-14 14:45:44 +0000 | [diff] [blame] | 334 | range = asn1constraint_compute_PER_range(expr->expr_type, |
| 335 | expr->combined_constraints, ACT_CT_SIZE, 0, 0, |
| 336 | CPR_simulate_fbless_SIZE); |
| 337 | if(range) { |
| 338 | if(!range->incompatible) { |
| 339 | right = range->right; |
| 340 | /* Use 4 instead of sizeof(long) is justified! */ |
| 341 | if(right.type == ARE_VALUE && right.value <= 4) |
| 342 | return FL_FITSOK; |
| 343 | } |
| 344 | asn1constraint_range_free(range); |
| 345 | } |
| 346 | |
| 347 | /* |
| 348 | * Third, pull up the PER visible range of the INTEGER. |
| 349 | */ |
| 350 | range = asn1constraint_compute_PER_range(expr->expr_type, |
| 351 | expr->combined_constraints, ACT_EL_RANGE, 0, 0, 0); |
Lev Walkin | 082cadc | 2005-08-14 02:18:27 +0000 | [diff] [blame] | 352 | if(!range |
| 353 | || range->empty_constraint |
| 354 | || range->extensible |
| 355 | || range->incompatible |
| 356 | || range->not_PER_visible |
| 357 | ) { |
| 358 | asn1constraint_range_free(range); |
| 359 | return (arg->flags & A1C_USE_NATIVE_TYPES) |
| 360 | ? FL_FORCED : FL_NOTFIT; |
| 361 | } |
| 362 | |
| 363 | left = range->left; |
| 364 | right = range->right; |
| 365 | asn1constraint_range_free(range); |
| 366 | |
| 367 | /* If some fixed value is outside of target range, not fit */ |
| 368 | if(left.type == ARE_VALUE |
| 369 | && (left.value < LEFTMIN || left.value > RIGHTMAX)) |
| 370 | return FL_NOTFIT; |
| 371 | if(right.type == ARE_VALUE |
| 372 | && (right.value > RIGHTMAX || right.value < LEFTMIN)) |
| 373 | return FL_NOTFIT; |
| 374 | |
| 375 | /* If the range is open, fits only if -fnative-types is given */ |
| 376 | if(left.type != ARE_VALUE || right.type != ARE_VALUE) { |
| 377 | return (arg->flags & A1C_USE_NATIVE_TYPES) |
| 378 | ? FL_FORCED : FL_NOTFIT; |
| 379 | } |
| 380 | |
| 381 | return FL_FITSOK; |
| 382 | } |
| 383 | |