| 1 | /* Chill language support routines for GDB, the GNU debugger. |
| 2 | Copyright 1992, 1995, 1996 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 19 | |
| 20 | #include "defs.h" |
| 21 | #include "symtab.h" |
| 22 | #include "gdbtypes.h" |
| 23 | #include "value.h" |
| 24 | #include "expression.h" |
| 25 | #include "parser-defs.h" |
| 26 | #include "language.h" |
| 27 | #include "ch-lang.h" |
| 28 | |
| 29 | static value_ptr |
| 30 | evaluate_subexp_chill PARAMS ((struct type *, struct expression *, int *, enum noside)); |
| 31 | |
| 32 | static value_ptr |
| 33 | value_chill_max_min PARAMS ((enum exp_opcode, value_ptr)); |
| 34 | |
| 35 | static value_ptr |
| 36 | value_chill_card PARAMS ((value_ptr)); |
| 37 | |
| 38 | static value_ptr |
| 39 | value_chill_length PARAMS ((value_ptr)); |
| 40 | |
| 41 | static struct type * |
| 42 | chill_create_fundamental_type PARAMS ((struct objfile *, int)); |
| 43 | |
| 44 | static void |
| 45 | chill_printstr PARAMS ((GDB_FILE *, char *, unsigned int, int)); |
| 46 | |
| 47 | static void |
| 48 | chill_printchar PARAMS ((int, GDB_FILE *)); |
| 49 | |
| 50 | /* For now, Chill uses a simple mangling algorithm whereby you simply |
| 51 | discard everything after the occurance of two successive CPLUS_MARKER |
| 52 | characters to derive the demangled form. */ |
| 53 | |
| 54 | char * |
| 55 | chill_demangle (mangled) |
| 56 | const char *mangled; |
| 57 | { |
| 58 | const char *joiner = NULL; |
| 59 | char *demangled; |
| 60 | const char *cp = mangled; |
| 61 | |
| 62 | while (*cp) |
| 63 | { |
| 64 | if (is_cplus_marker (*cp)) |
| 65 | { |
| 66 | joiner = cp; |
| 67 | break; |
| 68 | } |
| 69 | cp++; |
| 70 | } |
| 71 | if (joiner != NULL && *(joiner + 1) == *joiner) |
| 72 | { |
| 73 | demangled = savestring (mangled, joiner - mangled); |
| 74 | } |
| 75 | else |
| 76 | { |
| 77 | demangled = NULL; |
| 78 | } |
| 79 | return (demangled); |
| 80 | } |
| 81 | |
| 82 | static void |
| 83 | chill_printchar (c, stream) |
| 84 | register int c; |
| 85 | GDB_FILE *stream; |
| 86 | { |
| 87 | c &= 0xFF; /* Avoid sign bit follies */ |
| 88 | |
| 89 | if (PRINT_LITERAL_FORM (c)) |
| 90 | { |
| 91 | if (c == '\'' || c == '^') |
| 92 | fprintf_filtered (stream, "'%c%c'", c, c); |
| 93 | else |
| 94 | fprintf_filtered (stream, "'%c'", c); |
| 95 | } |
| 96 | else |
| 97 | { |
| 98 | fprintf_filtered (stream, "'^(%u)'", (unsigned int) c); |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | /* Print the character string STRING, printing at most LENGTH characters. |
| 103 | Printing stops early if the number hits print_max; repeat counts |
| 104 | are printed as appropriate. Print ellipses at the end if we |
| 105 | had to stop before printing LENGTH characters, or if FORCE_ELLIPSES. |
| 106 | Note that gdb maintains the length of strings without counting the |
| 107 | terminating null byte, while chill strings are typically written with |
| 108 | an explicit null byte. So we always assume an implied null byte |
| 109 | until gdb is able to maintain non-null terminated strings as well |
| 110 | as null terminated strings (FIXME). |
| 111 | */ |
| 112 | |
| 113 | static void |
| 114 | chill_printstr (stream, string, length, force_ellipses) |
| 115 | GDB_FILE *stream; |
| 116 | char *string; |
| 117 | unsigned int length; |
| 118 | int force_ellipses; |
| 119 | { |
| 120 | register unsigned int i; |
| 121 | unsigned int things_printed = 0; |
| 122 | int in_literal_form = 0; |
| 123 | int in_control_form = 0; |
| 124 | int need_slashslash = 0; |
| 125 | unsigned int c; |
| 126 | extern int repeat_count_threshold; |
| 127 | extern int print_max; |
| 128 | |
| 129 | if (length == 0) |
| 130 | { |
| 131 | fputs_filtered ("\"\"", stream); |
| 132 | return; |
| 133 | } |
| 134 | |
| 135 | for (i = 0; i < length && things_printed < print_max; ++i) |
| 136 | { |
| 137 | /* Position of the character we are examining |
| 138 | to see whether it is repeated. */ |
| 139 | unsigned int rep1; |
| 140 | /* Number of repetitions we have detected so far. */ |
| 141 | unsigned int reps; |
| 142 | |
| 143 | QUIT; |
| 144 | |
| 145 | if (need_slashslash) |
| 146 | { |
| 147 | fputs_filtered ("//", stream); |
| 148 | need_slashslash = 0; |
| 149 | } |
| 150 | |
| 151 | rep1 = i + 1; |
| 152 | reps = 1; |
| 153 | while (rep1 < length && string[rep1] == string[i]) |
| 154 | { |
| 155 | ++rep1; |
| 156 | ++reps; |
| 157 | } |
| 158 | |
| 159 | c = string[i]; |
| 160 | if (reps > repeat_count_threshold) |
| 161 | { |
| 162 | if (in_control_form || in_literal_form) |
| 163 | { |
| 164 | if (in_control_form) |
| 165 | fputs_filtered (")", stream); |
| 166 | fputs_filtered ("\"//", stream); |
| 167 | in_control_form = in_literal_form = 0; |
| 168 | } |
| 169 | chill_printchar (c, stream); |
| 170 | fprintf_filtered (stream, "<repeats %u times>", reps); |
| 171 | i = rep1 - 1; |
| 172 | things_printed += repeat_count_threshold; |
| 173 | need_slashslash = 1; |
| 174 | } |
| 175 | else |
| 176 | { |
| 177 | if (! in_literal_form && ! in_control_form) |
| 178 | fputs_filtered ("\"", stream); |
| 179 | if (PRINT_LITERAL_FORM (c)) |
| 180 | { |
| 181 | if (!in_literal_form) |
| 182 | { |
| 183 | if (in_control_form) |
| 184 | { |
| 185 | fputs_filtered (")", stream); |
| 186 | in_control_form = 0; |
| 187 | } |
| 188 | in_literal_form = 1; |
| 189 | } |
| 190 | fprintf_filtered (stream, "%c", c); |
| 191 | if (c == '"' || c == '^') |
| 192 | /* duplicate this one as must be done at input */ |
| 193 | fprintf_filtered (stream, "%c", c); |
| 194 | } |
| 195 | else |
| 196 | { |
| 197 | if (!in_control_form) |
| 198 | { |
| 199 | if (in_literal_form) |
| 200 | { |
| 201 | in_literal_form = 0; |
| 202 | } |
| 203 | fputs_filtered ("^(", stream); |
| 204 | in_control_form = 1; |
| 205 | } |
| 206 | else |
| 207 | fprintf_filtered (stream, ","); |
| 208 | c = c & 0xff; |
| 209 | fprintf_filtered (stream, "%u", (unsigned int) c); |
| 210 | } |
| 211 | ++things_printed; |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | /* Terminate the quotes if necessary. */ |
| 216 | if (in_control_form) |
| 217 | { |
| 218 | fputs_filtered (")", stream); |
| 219 | } |
| 220 | if (in_literal_form || in_control_form) |
| 221 | { |
| 222 | fputs_filtered ("\"", stream); |
| 223 | } |
| 224 | if (force_ellipses || (i < length)) |
| 225 | { |
| 226 | fputs_filtered ("...", stream); |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | static struct type * |
| 231 | chill_create_fundamental_type (objfile, typeid) |
| 232 | struct objfile *objfile; |
| 233 | int typeid; |
| 234 | { |
| 235 | register struct type *type = NULL; |
| 236 | |
| 237 | switch (typeid) |
| 238 | { |
| 239 | default: |
| 240 | /* FIXME: For now, if we are asked to produce a type not in this |
| 241 | language, create the equivalent of a C integer type with the |
| 242 | name "<?type?>". When all the dust settles from the type |
| 243 | reconstruction work, this should probably become an error. */ |
| 244 | type = init_type (TYPE_CODE_INT, 2, 0, "<?type?>", objfile); |
| 245 | warning ("internal error: no chill fundamental type %d", typeid); |
| 246 | break; |
| 247 | case FT_VOID: |
| 248 | /* FIXME: Currently the GNU Chill compiler emits some DWARF entries for |
| 249 | typedefs, unrelated to anything directly in the code being compiled, |
| 250 | that have some FT_VOID types. Just fake it for now. */ |
| 251 | type = init_type (TYPE_CODE_VOID, 0, 0, "<?VOID?>", objfile); |
| 252 | break; |
| 253 | case FT_BOOLEAN: |
| 254 | type = init_type (TYPE_CODE_BOOL, 1, TYPE_FLAG_UNSIGNED, "BOOL", objfile); |
| 255 | break; |
| 256 | case FT_CHAR: |
| 257 | type = init_type (TYPE_CODE_CHAR, 1, TYPE_FLAG_UNSIGNED, "CHAR", objfile); |
| 258 | break; |
| 259 | case FT_SIGNED_CHAR: |
| 260 | type = init_type (TYPE_CODE_INT, 1, 0, "BYTE", objfile); |
| 261 | break; |
| 262 | case FT_UNSIGNED_CHAR: |
| 263 | type = init_type (TYPE_CODE_INT, 1, TYPE_FLAG_UNSIGNED, "UBYTE", objfile); |
| 264 | break; |
| 265 | case FT_SHORT: /* Chill ints are 2 bytes */ |
| 266 | type = init_type (TYPE_CODE_INT, 2, 0, "INT", objfile); |
| 267 | break; |
| 268 | case FT_UNSIGNED_SHORT: /* Chill ints are 2 bytes */ |
| 269 | type = init_type (TYPE_CODE_INT, 2, TYPE_FLAG_UNSIGNED, "UINT", objfile); |
| 270 | break; |
| 271 | case FT_INTEGER: /* FIXME? */ |
| 272 | case FT_SIGNED_INTEGER: /* FIXME? */ |
| 273 | case FT_LONG: /* Chill longs are 4 bytes */ |
| 274 | case FT_SIGNED_LONG: /* Chill longs are 4 bytes */ |
| 275 | type = init_type (TYPE_CODE_INT, 4, 0, "LONG", objfile); |
| 276 | break; |
| 277 | case FT_UNSIGNED_INTEGER: /* FIXME? */ |
| 278 | case FT_UNSIGNED_LONG: /* Chill longs are 4 bytes */ |
| 279 | type = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED, "ULONG", objfile); |
| 280 | break; |
| 281 | case FT_FLOAT: |
| 282 | type = init_type (TYPE_CODE_FLT, 4, 0, "REAL", objfile); |
| 283 | break; |
| 284 | case FT_DBL_PREC_FLOAT: |
| 285 | type = init_type (TYPE_CODE_FLT, 8, 0, "LONG_REAL", objfile); |
| 286 | break; |
| 287 | } |
| 288 | return (type); |
| 289 | } |
| 290 | |
| 291 | \f |
| 292 | /* Table of operators and their precedences for printing expressions. */ |
| 293 | |
| 294 | static const struct op_print chill_op_print_tab[] = { |
| 295 | {"AND", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, |
| 296 | {"OR", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, |
| 297 | {"NOT", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, |
| 298 | {"MOD", BINOP_MOD, PREC_MUL, 0}, |
| 299 | {"REM", BINOP_REM, PREC_MUL, 0}, |
| 300 | {"SIZE",UNOP_SIZEOF, PREC_BUILTIN_FUNCTION, 0}, |
| 301 | {"LOWER",UNOP_LOWER, PREC_BUILTIN_FUNCTION, 0}, |
| 302 | {"UPPER",UNOP_UPPER, PREC_BUILTIN_FUNCTION, 0}, |
| 303 | {"CARD",UNOP_CARD, PREC_BUILTIN_FUNCTION, 0}, |
| 304 | {"MAX",UNOP_CHMAX, PREC_BUILTIN_FUNCTION, 0}, |
| 305 | {"MIN",UNOP_CHMIN, PREC_BUILTIN_FUNCTION, 0}, |
| 306 | {":=", BINOP_ASSIGN, PREC_ASSIGN, 1}, |
| 307 | {"=", BINOP_EQUAL, PREC_EQUAL, 0}, |
| 308 | {"/=", BINOP_NOTEQUAL, PREC_EQUAL, 0}, |
| 309 | {"<=", BINOP_LEQ, PREC_ORDER, 0}, |
| 310 | {">=", BINOP_GEQ, PREC_ORDER, 0}, |
| 311 | {">", BINOP_GTR, PREC_ORDER, 0}, |
| 312 | {"<", BINOP_LESS, PREC_ORDER, 0}, |
| 313 | {"+", BINOP_ADD, PREC_ADD, 0}, |
| 314 | {"-", BINOP_SUB, PREC_ADD, 0}, |
| 315 | {"*", BINOP_MUL, PREC_MUL, 0}, |
| 316 | {"/", BINOP_DIV, PREC_MUL, 0}, |
| 317 | {"//", BINOP_CONCAT, PREC_PREFIX, 0}, /* FIXME: precedence? */ |
| 318 | {"-", UNOP_NEG, PREC_PREFIX, 0}, |
| 319 | {"->", UNOP_IND, PREC_SUFFIX, 1}, |
| 320 | {"->", UNOP_ADDR, PREC_PREFIX, 0}, |
| 321 | {":", BINOP_RANGE, PREC_ASSIGN, 0}, |
| 322 | {NULL, 0, 0, 0} |
| 323 | }; |
| 324 | \f |
| 325 | /* The built-in types of Chill. */ |
| 326 | |
| 327 | struct type *builtin_type_chill_bool; |
| 328 | struct type *builtin_type_chill_char; |
| 329 | struct type *builtin_type_chill_long; |
| 330 | struct type *builtin_type_chill_ulong; |
| 331 | struct type *builtin_type_chill_real; |
| 332 | |
| 333 | struct type ** CONST_PTR (chill_builtin_types[]) = |
| 334 | { |
| 335 | &builtin_type_chill_bool, |
| 336 | &builtin_type_chill_char, |
| 337 | &builtin_type_chill_long, |
| 338 | &builtin_type_chill_ulong, |
| 339 | &builtin_type_chill_real, |
| 340 | 0 |
| 341 | }; |
| 342 | |
| 343 | /* Calculate LOWER or UPPER of TYPE. |
| 344 | Returns the result as an integer. |
| 345 | *RESULT_TYPE is the appropriate type for the result. */ |
| 346 | |
| 347 | LONGEST |
| 348 | type_lower_upper (op, type, result_type) |
| 349 | enum exp_opcode op; /* Either UNOP_LOWER or UNOP_UPPER */ |
| 350 | struct type *type; |
| 351 | struct type **result_type; |
| 352 | { |
| 353 | LONGEST low, high; |
| 354 | *result_type = type; |
| 355 | CHECK_TYPEDEF (type); |
| 356 | switch (TYPE_CODE (type)) |
| 357 | { |
| 358 | case TYPE_CODE_STRUCT: |
| 359 | *result_type = builtin_type_int; |
| 360 | if (chill_varying_type (type)) |
| 361 | return type_lower_upper (op, TYPE_FIELD_TYPE (type, 1), result_type); |
| 362 | break; |
| 363 | case TYPE_CODE_ARRAY: |
| 364 | case TYPE_CODE_BITSTRING: |
| 365 | case TYPE_CODE_STRING: |
| 366 | type = TYPE_FIELD_TYPE (type, 0); /* Get index type */ |
| 367 | |
| 368 | /* ... fall through ... */ |
| 369 | case TYPE_CODE_RANGE: |
| 370 | *result_type = TYPE_TARGET_TYPE (type); |
| 371 | return op == UNOP_LOWER ? TYPE_LOW_BOUND (type) : TYPE_HIGH_BOUND (type); |
| 372 | |
| 373 | case TYPE_CODE_ENUM: |
| 374 | case TYPE_CODE_BOOL: |
| 375 | case TYPE_CODE_INT: |
| 376 | case TYPE_CODE_CHAR: |
| 377 | if (get_discrete_bounds (type, &low, &high) >= 0) |
| 378 | { |
| 379 | *result_type = type; |
| 380 | return op == UNOP_LOWER ? low : high; |
| 381 | } |
| 382 | break; |
| 383 | case TYPE_CODE_UNDEF: |
| 384 | case TYPE_CODE_PTR: |
| 385 | case TYPE_CODE_UNION: |
| 386 | case TYPE_CODE_FUNC: |
| 387 | case TYPE_CODE_FLT: |
| 388 | case TYPE_CODE_VOID: |
| 389 | case TYPE_CODE_SET: |
| 390 | case TYPE_CODE_ERROR: |
| 391 | case TYPE_CODE_MEMBER: |
| 392 | case TYPE_CODE_METHOD: |
| 393 | case TYPE_CODE_REF: |
| 394 | case TYPE_CODE_COMPLEX: |
| 395 | default: |
| 396 | break; |
| 397 | } |
| 398 | error ("unknown mode for LOWER/UPPER builtin"); |
| 399 | } |
| 400 | |
| 401 | static value_ptr |
| 402 | value_chill_length (val) |
| 403 | value_ptr val; |
| 404 | { |
| 405 | LONGEST tmp; |
| 406 | struct type *type = VALUE_TYPE (val); |
| 407 | struct type *ttype; |
| 408 | CHECK_TYPEDEF (type); |
| 409 | switch (TYPE_CODE (type)) |
| 410 | { |
| 411 | case TYPE_CODE_ARRAY: |
| 412 | case TYPE_CODE_BITSTRING: |
| 413 | case TYPE_CODE_STRING: |
| 414 | tmp = type_lower_upper (UNOP_UPPER, type, &ttype) |
| 415 | - type_lower_upper (UNOP_LOWER, type, &ttype) + 1; |
| 416 | break; |
| 417 | case TYPE_CODE_STRUCT: |
| 418 | if (chill_varying_type (type)) |
| 419 | { |
| 420 | tmp = unpack_long (TYPE_FIELD_TYPE (type, 0), VALUE_CONTENTS (val)); |
| 421 | break; |
| 422 | } |
| 423 | /* ... else fall through ... */ |
| 424 | default: |
| 425 | error ("bad argument to LENGTH builtin"); |
| 426 | } |
| 427 | return value_from_longest (builtin_type_int, tmp); |
| 428 | } |
| 429 | |
| 430 | static value_ptr |
| 431 | value_chill_card (val) |
| 432 | value_ptr val; |
| 433 | { |
| 434 | LONGEST tmp = 0; |
| 435 | struct type *type = VALUE_TYPE (val); |
| 436 | CHECK_TYPEDEF (type); |
| 437 | |
| 438 | if (TYPE_CODE (type) == TYPE_CODE_SET) |
| 439 | { |
| 440 | struct type *range_type = TYPE_INDEX_TYPE (type); |
| 441 | LONGEST lower_bound, upper_bound; |
| 442 | int i; |
| 443 | |
| 444 | get_discrete_bounds (range_type, &lower_bound, &upper_bound); |
| 445 | for (i = lower_bound; i <= upper_bound; i++) |
| 446 | if (value_bit_index (type, VALUE_CONTENTS (val), i) > 0) |
| 447 | tmp++; |
| 448 | } |
| 449 | else |
| 450 | error ("bad argument to CARD builtin"); |
| 451 | |
| 452 | return value_from_longest (builtin_type_int, tmp); |
| 453 | } |
| 454 | |
| 455 | static value_ptr |
| 456 | value_chill_max_min (op, val) |
| 457 | enum exp_opcode op; |
| 458 | value_ptr val; |
| 459 | { |
| 460 | LONGEST tmp = 0; |
| 461 | struct type *type = VALUE_TYPE (val); |
| 462 | struct type *elttype; |
| 463 | CHECK_TYPEDEF (type); |
| 464 | |
| 465 | if (TYPE_CODE (type) == TYPE_CODE_SET) |
| 466 | { |
| 467 | LONGEST lower_bound, upper_bound; |
| 468 | int i, empty = 1; |
| 469 | |
| 470 | elttype = TYPE_INDEX_TYPE (type); |
| 471 | CHECK_TYPEDEF (elttype); |
| 472 | get_discrete_bounds (elttype, &lower_bound, &upper_bound); |
| 473 | |
| 474 | if (op == UNOP_CHMAX) |
| 475 | { |
| 476 | for (i = upper_bound; i >= lower_bound; i--) |
| 477 | { |
| 478 | if (value_bit_index (type, VALUE_CONTENTS (val), i) > 0) |
| 479 | { |
| 480 | tmp = i; |
| 481 | empty = 0; |
| 482 | break; |
| 483 | } |
| 484 | } |
| 485 | } |
| 486 | else |
| 487 | { |
| 488 | for (i = lower_bound; i <= upper_bound; i++) |
| 489 | { |
| 490 | if (value_bit_index (type, VALUE_CONTENTS (val), i) > 0) |
| 491 | { |
| 492 | tmp = i; |
| 493 | empty = 0; |
| 494 | break; |
| 495 | } |
| 496 | } |
| 497 | } |
| 498 | if (empty) |
| 499 | error ("%s for empty powerset", op == UNOP_CHMAX ? "MAX" : "MIN"); |
| 500 | } |
| 501 | else |
| 502 | error ("bad argument to %s builtin", op == UNOP_CHMAX ? "MAX" : "MIN"); |
| 503 | |
| 504 | return value_from_longest (TYPE_CODE (elttype) == TYPE_CODE_RANGE |
| 505 | ? TYPE_TARGET_TYPE (elttype) |
| 506 | : elttype, |
| 507 | tmp); |
| 508 | } |
| 509 | |
| 510 | static value_ptr |
| 511 | evaluate_subexp_chill (expect_type, exp, pos, noside) |
| 512 | struct type *expect_type; |
| 513 | register struct expression *exp; |
| 514 | register int *pos; |
| 515 | enum noside noside; |
| 516 | { |
| 517 | int pc = *pos; |
| 518 | struct type *type; |
| 519 | int tem, nargs; |
| 520 | value_ptr arg1; |
| 521 | value_ptr *argvec; |
| 522 | enum exp_opcode op = exp->elts[*pos].opcode; |
| 523 | switch (op) |
| 524 | { |
| 525 | case MULTI_SUBSCRIPT: |
| 526 | if (noside == EVAL_SKIP) |
| 527 | break; |
| 528 | (*pos) += 3; |
| 529 | nargs = longest_to_int (exp->elts[pc + 1].longconst); |
| 530 | arg1 = evaluate_subexp_with_coercion (exp, pos, noside); |
| 531 | type = check_typedef (VALUE_TYPE (arg1)); |
| 532 | |
| 533 | if (nargs == 1 && TYPE_CODE (type) == TYPE_CODE_INT) |
| 534 | { |
| 535 | /* Looks like string repetition. */ |
| 536 | value_ptr string = evaluate_subexp_with_coercion (exp, pos, noside); |
| 537 | return value_concat (arg1, string); |
| 538 | } |
| 539 | |
| 540 | switch (TYPE_CODE (type)) |
| 541 | { |
| 542 | case TYPE_CODE_PTR: |
| 543 | type = check_typedef (TYPE_TARGET_TYPE (type)); |
| 544 | if (!type || TYPE_CODE (type) != TYPE_CODE_FUNC) |
| 545 | error ("reference value used as function"); |
| 546 | /* ... fall through ... */ |
| 547 | case TYPE_CODE_FUNC: |
| 548 | /* It's a function call. */ |
| 549 | if (noside == EVAL_AVOID_SIDE_EFFECTS) |
| 550 | break; |
| 551 | |
| 552 | /* Allocate arg vector, including space for the function to be |
| 553 | called in argvec[0] and a terminating NULL */ |
| 554 | argvec = (value_ptr *) alloca (sizeof (value_ptr) * (nargs + 2)); |
| 555 | argvec[0] = arg1; |
| 556 | tem = 1; |
| 557 | for (; tem <= nargs && tem <= TYPE_NFIELDS (type); tem++) |
| 558 | { |
| 559 | argvec[tem] |
| 560 | = evaluate_subexp_chill (TYPE_FIELD_TYPE (type, tem-1), |
| 561 | exp, pos, noside); |
| 562 | } |
| 563 | for (; tem <= nargs; tem++) |
| 564 | argvec[tem] = evaluate_subexp_with_coercion (exp, pos, noside); |
| 565 | argvec[tem] = 0; /* signal end of arglist */ |
| 566 | |
| 567 | return call_function_by_hand (argvec[0], nargs, argvec + 1); |
| 568 | default: |
| 569 | break; |
| 570 | } |
| 571 | |
| 572 | while (nargs-- > 0) |
| 573 | { |
| 574 | value_ptr index = evaluate_subexp_with_coercion (exp, pos, noside); |
| 575 | arg1 = value_subscript (arg1, index); |
| 576 | } |
| 577 | return (arg1); |
| 578 | |
| 579 | case UNOP_LOWER: |
| 580 | case UNOP_UPPER: |
| 581 | (*pos)++; |
| 582 | if (noside == EVAL_SKIP) |
| 583 | { |
| 584 | (*exp->language_defn->evaluate_exp) (NULL_TYPE, exp, pos, EVAL_SKIP); |
| 585 | goto nosideret; |
| 586 | } |
| 587 | arg1 = (*exp->language_defn->evaluate_exp) (NULL_TYPE, exp, pos, |
| 588 | EVAL_AVOID_SIDE_EFFECTS); |
| 589 | tem = type_lower_upper (op, VALUE_TYPE (arg1), &type); |
| 590 | return value_from_longest (type, tem); |
| 591 | |
| 592 | case UNOP_LENGTH: |
| 593 | (*pos)++; |
| 594 | arg1 = (*exp->language_defn->evaluate_exp) (NULL_TYPE, exp, pos, noside); |
| 595 | return value_chill_length (arg1); |
| 596 | |
| 597 | case UNOP_CARD: |
| 598 | (*pos)++; |
| 599 | arg1 = (*exp->language_defn->evaluate_exp) (NULL_TYPE, exp, pos, noside); |
| 600 | return value_chill_card (arg1); |
| 601 | |
| 602 | case UNOP_CHMAX: |
| 603 | case UNOP_CHMIN: |
| 604 | (*pos)++; |
| 605 | arg1 = (*exp->language_defn->evaluate_exp) (NULL_TYPE, exp, pos, noside); |
| 606 | return value_chill_max_min (op, arg1); |
| 607 | |
| 608 | case BINOP_COMMA: |
| 609 | error ("',' operator used in invalid context"); |
| 610 | |
| 611 | default: |
| 612 | break; |
| 613 | } |
| 614 | |
| 615 | return evaluate_subexp_standard (expect_type, exp, pos, noside); |
| 616 | nosideret: |
| 617 | return value_from_longest (builtin_type_long, (LONGEST) 1); |
| 618 | } |
| 619 | |
| 620 | const struct language_defn chill_language_defn = { |
| 621 | "chill", |
| 622 | language_chill, |
| 623 | chill_builtin_types, |
| 624 | range_check_on, |
| 625 | type_check_on, |
| 626 | chill_parse, /* parser */ |
| 627 | chill_error, /* parser error function */ |
| 628 | evaluate_subexp_chill, |
| 629 | chill_printchar, /* print a character constant */ |
| 630 | chill_printstr, /* function to print a string constant */ |
| 631 | chill_create_fundamental_type,/* Create fundamental type in this language */ |
| 632 | chill_print_type, /* Print a type using appropriate syntax */ |
| 633 | chill_val_print, /* Print a value using appropriate syntax */ |
| 634 | chill_value_print, /* Print a top-levl value */ |
| 635 | {"", "B'", "", ""}, /* Binary format info */ |
| 636 | {"O'%lo", "O'", "o", ""}, /* Octal format info */ |
| 637 | {"D'%ld", "D'", "d", ""}, /* Decimal format info */ |
| 638 | {"H'%lx", "H'", "x", ""}, /* Hex format info */ |
| 639 | chill_op_print_tab, /* expression operators for printing */ |
| 640 | 0, /* arrays are first-class (not c-style) */ |
| 641 | 0, /* String lower bound */ |
| 642 | &builtin_type_chill_char, /* Type of string elements */ |
| 643 | LANG_MAGIC |
| 644 | }; |
| 645 | |
| 646 | /* Initialization for Chill */ |
| 647 | |
| 648 | void |
| 649 | _initialize_chill_language () |
| 650 | { |
| 651 | builtin_type_chill_bool = |
| 652 | init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 653 | TYPE_FLAG_UNSIGNED, |
| 654 | "BOOL", (struct objfile *) NULL); |
| 655 | builtin_type_chill_char = |
| 656 | init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 657 | TYPE_FLAG_UNSIGNED, |
| 658 | "CHAR", (struct objfile *) NULL); |
| 659 | builtin_type_chill_long = |
| 660 | init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, |
| 661 | 0, |
| 662 | "LONG", (struct objfile *) NULL); |
| 663 | builtin_type_chill_ulong = |
| 664 | init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, |
| 665 | TYPE_FLAG_UNSIGNED, |
| 666 | "ULONG", (struct objfile *) NULL); |
| 667 | builtin_type_chill_real = |
| 668 | init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, |
| 669 | 0, |
| 670 | "LONG_REAL", (struct objfile *) NULL); |
| 671 | |
| 672 | add_language (&chill_language_defn); |
| 673 | } |