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