vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | #include "asn1c_internal.h" |
vlm | b283901 | 2004-08-20 13:37:01 +0000 | [diff] [blame] | 2 | #include "asn1c_misc.h" |
| 3 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 4 | #include <asn1fix_export.h> |
| 5 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 6 | /* |
vlm | af84197 | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 7 | * Checks that the given string is not a reserved C/C++ keyword. |
vlm | 4bf5551 | 2005-03-03 21:29:27 +0000 | [diff] [blame] | 8 | * ISO/IEC 9899:1999 (C99), A.1.2 |
vlm | af84197 | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 9 | */ |
| 10 | static char *res_kwd[] = { |
vlm | 4bf5551 | 2005-03-03 21:29:27 +0000 | [diff] [blame] | 11 | "const", "auto", "register", "volatile", "restrict", "extern", |
| 12 | "static", "inline", |
| 13 | "signed", "unsigned", |
| 14 | "void", "char", "short", "int", "long", "float", "double", |
| 15 | "enum", "union", "struct", "typedef", "class", |
| 16 | "switch", "case", "default", "break", "continue", |
| 17 | "if", "else", "do", "for", "while", "goto", |
| 18 | "sizeof", "return" |
| 19 | }; |
vlm | af84197 | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 20 | static int |
| 21 | reserved_keyword(const char *str) { |
| 22 | int i; |
| 23 | for(i = 0 ; i < sizeof(res_kwd)/sizeof(res_kwd[0]); i++) { |
| 24 | if(strcmp(str, res_kwd[i]) == 0) |
| 25 | return 1; |
| 26 | } |
| 27 | return 0; |
| 28 | } |
| 29 | |
| 30 | /* |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 31 | * Construct identifier from multiple parts. |
| 32 | * Convert unsafe characters to underscores. |
| 33 | */ |
| 34 | char * |
vlm | af84197 | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 35 | asn1c_make_identifier(enum ami_flags_e flags, char *arg1, ...) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 36 | static char *storage; |
| 37 | static int storage_size; |
| 38 | int nodelimiter = 0; |
| 39 | va_list ap; |
| 40 | char *str; |
vlm | af84197 | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 41 | char *nextstr; |
vlm | 8a09e0f | 2005-02-25 14:20:30 +0000 | [diff] [blame] | 42 | size_t size; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 43 | char *p; |
| 44 | |
| 45 | if(arg1 == NULL) |
| 46 | return NULL; |
| 47 | |
| 48 | /* |
| 49 | * Estimate the necessary storage size |
| 50 | */ |
| 51 | size = strlen(arg1); |
| 52 | va_start(ap, arg1); |
| 53 | while((str = va_arg(ap, char *))) |
| 54 | size += 1 + strlen(str); |
| 55 | va_end(ap); |
| 56 | |
| 57 | /* |
| 58 | * Make sure we have this amount of storage. |
| 59 | */ |
| 60 | if(storage_size <= size) { |
| 61 | if(storage) free(storage); |
| 62 | storage = malloc(size + 1); |
| 63 | if(storage) { |
| 64 | storage_size = size; |
| 65 | } else { |
| 66 | storage_size = 0; |
| 67 | return NULL; |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | /* |
| 72 | * Fill-in the storage. |
| 73 | */ |
| 74 | va_start(ap, arg1); |
| 75 | str = arg1; |
| 76 | p = storage; |
vlm | af84197 | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 77 | for(str = arg1; str; str = nextstr) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 78 | int subst_made = 0; |
vlm | af84197 | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 79 | nextstr = va_arg(ap, char *); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 80 | |
| 81 | if(str[0] == ' ' && str[1] == '\0') { |
| 82 | *p++ = ' '; |
| 83 | nodelimiter = 1; /* No delimiter */ |
| 84 | continue; |
| 85 | } |
| 86 | |
| 87 | if(str != arg1 && !nodelimiter) |
| 88 | *p++ = '_'; /* Delimiter between tokens */ |
| 89 | nodelimiter = 0; |
| 90 | |
vlm | af84197 | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 91 | /* |
| 92 | * If it is a single argument, check that it does not clash |
| 93 | * with C/C++ language keywords. |
| 94 | */ |
| 95 | if((flags & AMI_CHECK_RESERVED) |
| 96 | && str == arg1 && !nextstr && reserved_keyword(str)) { |
| 97 | *p++ = toupper(*str++); |
| 98 | /* Fall through */ |
| 99 | } |
| 100 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 101 | for(; *str; str++) { |
| 102 | if(isalnum(*str)) { |
| 103 | *p++ = *str; |
| 104 | subst_made = 0; |
| 105 | } else if(!subst_made++) { |
vlm | af84197 | 2005-01-28 12:18:50 +0000 | [diff] [blame] | 106 | if((flags & AMI_MASK_ONLY_SPACES) |
| 107 | && !isspace(*str)) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 108 | *p ++ = *str; |
| 109 | } else { |
| 110 | *p++ = '_'; |
| 111 | } |
| 112 | } |
| 113 | } |
| 114 | } |
| 115 | va_end(ap); |
| 116 | *p = '\0'; |
| 117 | |
| 118 | assert((p - storage) <= storage_size); |
| 119 | |
| 120 | return storage; |
| 121 | } |
| 122 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 123 | char * |
| 124 | asn1c_type_name(arg_t *arg, asn1p_expr_t *expr, enum tnfmt _format) { |
vlm | fb41dbb | 2004-09-08 00:28:57 +0000 | [diff] [blame] | 125 | asn1p_expr_t *top_parent; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 126 | char *typename; |
| 127 | |
vlm | fb41dbb | 2004-09-08 00:28:57 +0000 | [diff] [blame] | 128 | /* Rewind to the topmost parent expression */ |
| 129 | if((top_parent = expr->parent_expr)) |
| 130 | while(top_parent->parent_expr) |
| 131 | top_parent = top_parent->parent_expr; |
| 132 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 133 | switch(expr->expr_type) { |
| 134 | case A1TC_REFERENCE: |
| 135 | typename = expr->reference->components[ |
| 136 | expr->reference->comp_count-1].name; |
| 137 | if(typename[0] == '&') { |
| 138 | arg_t tmp = *arg; |
| 139 | |
| 140 | /* |
| 141 | * This is a reference to a type defined in a class. |
| 142 | * Resolve it and use instead. |
| 143 | */ |
| 144 | tmp.expr = asn1f_class_access_ex(arg->asn, arg->mod, |
vlm | b179d31 | 2004-08-22 03:23:15 +0000 | [diff] [blame] | 145 | arg->expr, expr->reference); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 146 | if(tmp.expr) return NULL; |
| 147 | |
vlm | b179d31 | 2004-08-22 03:23:15 +0000 | [diff] [blame] | 148 | tmp.mod = tmp.expr->module; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 149 | return asn1c_type_name(&tmp, tmp.expr, _format); |
vlm | fb41dbb | 2004-09-08 00:28:57 +0000 | [diff] [blame] | 150 | } |
| 151 | |
vlm | 0b567bf | 2005-03-04 22:18:20 +0000 | [diff] [blame] | 152 | if(_format == TNF_RSAFE) { |
| 153 | asn1p_expr_t *terminal; |
| 154 | terminal = asn1f_find_terminal_type_ex(arg->asn, expr); |
| 155 | if(terminal && terminal->expr_type & ASN_CONSTR_MASK) { |
| 156 | typename = terminal->Identifier; |
| 157 | } |
| 158 | } |
| 159 | |
vlm | b47f48e | 2004-09-17 06:32:12 +0000 | [diff] [blame] | 160 | if(_format == TNF_CTYPE) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 161 | /* |
vlm | b47f48e | 2004-09-17 06:32:12 +0000 | [diff] [blame] | 162 | * If the component references the type itself, |
vlm | 0b567bf | 2005-03-04 22:18:20 +0000 | [diff] [blame] | 163 | * switch to a recursion-safe type naming |
vlm | b47f48e | 2004-09-17 06:32:12 +0000 | [diff] [blame] | 164 | * ("struct foo" instead of "foo_t"). |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 165 | */ |
| 166 | asn1p_expr_t *terminal; |
vlm | cbebb81 | 2004-09-22 16:05:13 +0000 | [diff] [blame] | 167 | terminal = asn1f_find_terminal_type_ex(arg->asn, expr); |
vlm | b47f48e | 2004-09-17 06:32:12 +0000 | [diff] [blame] | 168 | if(terminal && terminal == top_parent) { |
| 169 | _format = TNF_RSAFE; |
vlm | fb41dbb | 2004-09-08 00:28:57 +0000 | [diff] [blame] | 170 | } |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 171 | } |
| 172 | break; |
vlm | c161f0c | 2004-08-25 02:03:26 +0000 | [diff] [blame] | 173 | #if 0 |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 174 | case ASN_CONSTR_SEQUENCE_OF: |
| 175 | case ASN_CONSTR_SET_OF: |
| 176 | if(expr->Identifier) { |
| 177 | typename = expr->Identifier; |
| 178 | } else { |
| 179 | asn1p_expr_t *child; |
| 180 | child = TQ_FIRST(&(expr->members)); |
| 181 | typename = asn1c_type_name(arg, child, _format); |
| 182 | if(typename) |
| 183 | return typename; |
| 184 | _format = TNF_SAFE; |
| 185 | typename = child->Identifier; |
| 186 | } |
| 187 | break; |
vlm | c161f0c | 2004-08-25 02:03:26 +0000 | [diff] [blame] | 188 | #endif |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 189 | case ASN_BASIC_INTEGER: |
| 190 | case ASN_BASIC_ENUMERATED: |
vlm | f9d178d | 2004-09-14 12:47:45 +0000 | [diff] [blame] | 191 | case ASN_BASIC_REAL: |
| 192 | if((arg->flags & A1C_USE_NATIVE_TYPES)) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 193 | switch(_format) { |
| 194 | case TNF_CTYPE: |
| 195 | case TNF_RSAFE: |
vlm | f9d178d | 2004-09-14 12:47:45 +0000 | [diff] [blame] | 196 | if(expr->expr_type == ASN_BASIC_REAL) |
| 197 | return "double"; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 198 | else |
vlm | 909b6c6 | 2005-02-25 12:09:55 +0000 | [diff] [blame] | 199 | return "long"; |
vlm | f9d178d | 2004-09-14 12:47:45 +0000 | [diff] [blame] | 200 | default: break; |
| 201 | } |
| 202 | switch(expr->expr_type) { |
| 203 | case ASN_BASIC_INTEGER: |
| 204 | return "NativeInteger"; |
| 205 | case ASN_BASIC_ENUMERATED: |
| 206 | return "NativeEnumerated"; |
| 207 | case ASN_BASIC_REAL: |
| 208 | return "NativeReal"; |
| 209 | default: break; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 210 | } |
| 211 | } |
| 212 | /* Fall through */ |
| 213 | default: |
vlm | c161f0c | 2004-08-25 02:03:26 +0000 | [diff] [blame] | 214 | if(expr->expr_type |
| 215 | & (ASN_CONSTR_MASK | ASN_BASIC_MASK | ASN_STRING_MASK)) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 216 | if(_format == TNF_RSAFE) |
| 217 | _format = TNF_CTYPE; |
| 218 | typename = ASN_EXPR_TYPE2STR(expr->expr_type); |
| 219 | } else { |
vlm | b47f48e | 2004-09-17 06:32:12 +0000 | [diff] [blame] | 220 | _format = TNF_RSAFE; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 221 | typename = expr->Identifier; |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | switch(_format) { |
| 226 | case TNF_UNMODIFIED: |
| 227 | case TNF_INCLUDE: |
vlm | 0b567bf | 2005-03-04 22:18:20 +0000 | [diff] [blame] | 228 | return asn1c_make_identifier(AMI_MASK_ONLY_SPACES, typename, 0); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 229 | case TNF_SAFE: |
vlm | 0b567bf | 2005-03-04 22:18:20 +0000 | [diff] [blame] | 230 | return asn1c_make_identifier(0, typename, 0); |
| 231 | case TNF_CTYPE: /* C type */ |
| 232 | return asn1c_make_identifier(0, typename, "t", 0); |
| 233 | case TNF_RSAFE: /* Recursion-safe type */ |
| 234 | return asn1c_make_identifier(AMI_CHECK_RESERVED, |
| 235 | "struct", " ", typename, 0); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 236 | } |
| 237 | |
vlm | b47f48e | 2004-09-17 06:32:12 +0000 | [diff] [blame] | 238 | assert(!"unreachable"); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 239 | return typename; |
| 240 | } |
| 241 | |