2 * File expr.c - expression handling for Wine internal debugger.
4 * Copyright (C) 1997, Eric Youngdale.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library 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 GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
29 #include "wine/debug.h"
31 WINE_DEFAULT_DEBUG_CHANNEL(winedbg);
45 long unsigned int value;
80 struct type_expr_t cast_to;
87 const char* element_name;
102 #define EXPR_TYPE_S_CONST 0
103 #define EXPR_TYPE_U_CONST 1
104 #define EXPR_TYPE_SYMBOL 2
105 #define EXPR_TYPE_INTVAR 3
106 #define EXPR_TYPE_BINOP 4
107 #define EXPR_TYPE_UNOP 5
108 #define EXPR_TYPE_STRUCT 6
109 #define EXPR_TYPE_PSTRUCT 7
110 #define EXPR_TYPE_CALL 8
111 #define EXPR_TYPE_STRING 9
112 #define EXPR_TYPE_CAST 10
114 static char expr_list[4096];
115 static unsigned int next_expr_free = 0;
117 static struct expr* expr_alloc(void)
121 rtn = (struct expr*)&expr_list[next_expr_free];
123 next_expr_free += sizeof(struct expr);
124 assert(next_expr_free < sizeof(expr_list));
129 void expr_free_all(void)
134 struct expr* expr_alloc_typecast(struct type_expr_t* tet, struct expr* exp)
140 ex->type = EXPR_TYPE_CAST;
141 ex->un.cast.cast_to = *tet;
142 ex->un.cast.expr = exp;
146 struct expr* expr_alloc_internal_var(const char* name)
152 ex->type = EXPR_TYPE_INTVAR;
153 ex->un.intvar.name = name;
157 struct expr* expr_alloc_symbol(const char* name)
163 ex->type = EXPR_TYPE_SYMBOL;
164 ex->un.symbol.name = name;
168 struct expr* expr_alloc_sconstant(long int value)
174 ex->type = EXPR_TYPE_S_CONST;
175 ex->un.s_const.value = value;
179 struct expr* expr_alloc_uconstant(long unsigned int value)
185 ex->type = EXPR_TYPE_U_CONST;
186 ex->un.u_const.value = value;
190 struct expr* expr_alloc_string(const char* str)
196 ex->type = EXPR_TYPE_STRING;
197 ex->un.string.str = str;
201 struct expr* expr_alloc_binary_op(int op_type, struct expr* exp1, struct expr* exp2)
207 ex->type = EXPR_TYPE_BINOP;
208 ex->un.binop.binop_type = op_type;
209 ex->un.binop.exp1 = exp1;
210 ex->un.binop.exp2 = exp2;
214 struct expr* expr_alloc_unary_op(int op_type, struct expr* exp1)
220 ex->type = EXPR_TYPE_UNOP;
221 ex->un.unop.unop_type = op_type;
222 ex->un.unop.exp1 = exp1;
226 struct expr* expr_alloc_struct(struct expr* exp, const char* element)
232 ex->type = EXPR_TYPE_STRUCT;
233 ex->un.structure.exp1 = exp;
234 ex->un.structure.element_name = element;
238 struct expr* expr_alloc_pstruct(struct expr* exp, const char* element)
244 ex->type = EXPR_TYPE_PSTRUCT;
245 ex->un.structure.exp1 = exp;
246 ex->un.structure.element_name = element;
250 struct expr* expr_alloc_func_call(const char* funcname, int nargs, ...)
258 ex->type = EXPR_TYPE_CALL;
259 ex->un.call.funcname = funcname;
260 ex->un.call.nargs = nargs;
263 for (i = 0; i < nargs; i++)
265 ex->un.call.arg[i] = va_arg(ap, struct expr*);
271 /******************************************************************
275 struct dbg_lvalue expr_eval(struct expr* exp)
277 struct dbg_lvalue rtn;
279 struct dbg_lvalue exp1;
280 struct dbg_lvalue exp2;
281 unsigned int cexp[5];
282 DWORD64 scale1, scale2, scale3;
283 struct dbg_type type1, type2;
285 const struct dbg_internal_var* div;
288 rtn.type.id = dbg_itype_none;
290 rtn.addr.Mode = AddrModeFlat;
292 rtn.addr.Segment = 0;
297 /* this is really brute force, we simply change the type... without
298 * checking if this is right or not
300 rtn = expr_eval(exp->un.cast.expr);
301 switch (exp->un.cast.cast_to.type)
303 case type_expr_type_id:
304 if (exp->un.cast.cast_to.u.type.id == dbg_itype_none)
306 dbg_printf("Can't cast to unknown type\n");
307 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
309 rtn.type = exp->un.cast.cast_to.u.type;
311 case type_expr_udt_class:
312 case type_expr_udt_struct:
313 case type_expr_udt_union:
314 rtn.type = types_find_type(rtn.type.module, exp->un.cast.cast_to.u.name,
316 if (rtn.type.id == dbg_itype_none)
318 dbg_printf("Can't cast to UDT %s\n", exp->un.cast.cast_to.u.name);
319 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
322 case type_expr_enumeration:
323 rtn.type = types_find_type(rtn.type.module, exp->un.cast.cast_to.u.name,
325 if (rtn.type.id == dbg_itype_none)
327 dbg_printf("Can't cast to enumeration %s\n", exp->un.cast.cast_to.u.name);
328 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
332 dbg_printf("Unsupported cast type %u\n", exp->un.cast.cast_to.type);
333 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
335 for (i = 0; i < exp->un.cast.cast_to.deref_count; i++)
337 rtn.type = types_find_pointer(&rtn.type);
338 if (rtn.type.id == dbg_itype_none)
340 dbg_printf("Cannot find pointer type\n");
341 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
345 case EXPR_TYPE_STRING:
346 rtn.cookie = DLV_HOST;
347 rtn.type.id = dbg_itype_astring;
349 rtn.addr.Offset = (ULONG_PTR)&exp->un.string.str;
351 case EXPR_TYPE_U_CONST:
352 rtn.cookie = DLV_HOST;
353 rtn.type.id = dbg_itype_unsigned_long_int;
355 rtn.addr.Offset = (ULONG_PTR)&exp->un.u_const.value;
357 case EXPR_TYPE_S_CONST:
358 rtn.cookie = DLV_HOST;
359 rtn.type.id = dbg_itype_signed_long_int;
361 rtn.addr.Offset = (ULONG_PTR)&exp->un.s_const.value;
363 case EXPR_TYPE_SYMBOL:
364 switch (symbol_get_lvalue(exp->un.symbol.name, -1, &rtn, FALSE))
369 RaiseException(DEBUG_STATUS_NO_SYMBOL, 0, 0, NULL);
370 /* should never be here */
372 RaiseException(DEBUG_STATUS_ABORT, 0, 0, NULL);
373 /* should never be here */
376 case EXPR_TYPE_PSTRUCT:
377 exp1 = expr_eval(exp->un.structure.exp1);
378 if (exp1.type.id == dbg_itype_none || !types_array_index(&exp1, 0, &rtn) ||
379 rtn.type.id == dbg_itype_none)
380 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
381 if (!types_udt_find_element(&rtn, exp->un.structure.element_name,
382 &exp->un.structure.result))
384 dbg_printf("%s\n", exp->un.structure.element_name);
385 RaiseException(DEBUG_STATUS_NO_FIELD, 0, 0, NULL);
388 case EXPR_TYPE_STRUCT:
389 exp1 = expr_eval(exp->un.structure.exp1);
390 if (exp1.type.id == dbg_itype_none) RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
392 if (!types_udt_find_element(&rtn, exp->un.structure.element_name,
393 &exp->un.structure.result))
395 dbg_printf("%s\n", exp->un.structure.element_name);
396 RaiseException(DEBUG_STATUS_NO_FIELD, 0, 0, NULL);
401 * First, evaluate all of the arguments. If any of them are not
402 * evaluable, then bail.
404 for (i = 0; i < exp->un.call.nargs; i++)
406 exp1 = expr_eval(exp->un.call.arg[i]);
407 if (exp1.type.id == dbg_itype_none)
408 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
409 cexp[i] = types_extract_as_integer(&exp1);
413 * Now look up the address of the function itself.
415 switch (symbol_get_lvalue(exp->un.call.funcname, -1, &rtn, FALSE))
420 RaiseException(DEBUG_STATUS_NO_SYMBOL, 0, 0, NULL);
421 /* should never be here */
423 RaiseException(DEBUG_STATUS_ABORT, 0, 0, NULL);
424 /* should never be here */
428 /* FIXME: NEWDBG NIY */
429 /* Anyway, I wonder how this could work depending on the calling order of
430 * the function (cdecl vs pascal for example)
434 fptr = (int (*)()) rtn.addr.off;
435 switch (exp->un.call.nargs)
438 exp->un.call.result = (*fptr)();
441 exp->un.call.result = (*fptr)(cexp[0]);
444 exp->un.call.result = (*fptr)(cexp[0], cexp[1]);
447 exp->un.call.result = (*fptr)(cexp[0], cexp[1], cexp[2]);
450 exp->un.call.result = (*fptr)(cexp[0], cexp[1], cexp[2], cexp[3]);
453 exp->un.call.result = (*fptr)(cexp[0], cexp[1], cexp[2], cexp[3], cexp[4]);
457 dbg_printf("Function call no longer implemented\n");
458 /* would need to set up a call to this function, and then restore the current
459 * context afterwards...
461 exp->un.call.result = 0;
463 rtn.cookie = DLV_HOST;
464 /* get return type from function signature tupe */
465 types_get_info(&rtn.type, TI_GET_TYPE, &rtn.type.id);
466 rtn.addr.Offset = (ULONG_PTR)&exp->un.call.result;
468 case EXPR_TYPE_INTVAR:
469 rtn.cookie = DLV_HOST;
470 if (!(div = dbg_get_internal_var(exp->un.intvar.name)))
471 RaiseException(DEBUG_STATUS_NO_SYMBOL, 0, 0, NULL);
472 rtn.type.id = div->typeid;
474 rtn.addr.Offset = (ULONG_PTR)div->pval;
476 case EXPR_TYPE_BINOP:
477 rtn.cookie = DLV_HOST;
478 exp1 = expr_eval(exp->un.binop.exp1);
479 exp2 = expr_eval(exp->un.binop.exp2);
480 if (exp1.type.id == dbg_itype_none || exp2.type.id == dbg_itype_none)
481 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
482 rtn.type.id = dbg_itype_signed_int;
484 rtn.addr.Offset = (ULONG_PTR)&exp->un.binop.result;
487 switch (exp->un.binop.binop_type)
490 if (!types_get_info(&exp1.type, TI_GET_SYMTAG, &tag) ||
491 tag != SymTagPointerType ||
492 !types_get_info(&exp1.type, TI_GET_TYPE, &type1.id))
493 type1.id = dbg_itype_none;
494 if (!types_get_info(&exp2.type, TI_GET_SYMTAG, &tag) ||
495 tag != SymTagPointerType ||
496 !types_get_info(&exp2.type, TI_GET_TYPE, &type2.id))
497 type2.id = dbg_itype_none;
500 if (type1.id != dbg_itype_none && type2.id != dbg_itype_none)
501 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
502 if (type1.id != dbg_itype_none)
504 types_get_info(&type1, TI_GET_LENGTH, &scale2);
505 rtn.type = exp1.type;
507 else if (type2.id != dbg_itype_none)
509 types_get_info(&type2, TI_GET_LENGTH, &scale1);
510 rtn.type = exp2.type;
512 exp->un.binop.result = types_extract_as_integer(&exp1) * (DWORD)scale1 +
513 (DWORD)scale2 * types_extract_as_integer(&exp2);
516 if (!types_get_info(&exp1.type, TI_GET_SYMTAG, &tag) ||
517 tag != SymTagPointerType ||
518 !types_get_info(&exp1.type, TI_GET_TYPE, &type1.id))
519 type1.id = dbg_itype_none;
520 if (!types_get_info(&exp2.type, TI_GET_SYMTAG, &tag) ||
521 tag != SymTagPointerType ||
522 !types_get_info(&exp2.type, TI_GET_TYPE, &type2.id))
523 type2.id = dbg_itype_none;
527 if (type1.id != dbg_itype_none && type2.id != dbg_itype_none)
529 WINE_FIXME("This may fail (if module base address are wrongly calculated)\n");
530 if (memcmp(&type1, &type2, sizeof(struct dbg_type)))
531 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
532 types_get_info(&type1, TI_GET_LENGTH, &scale3);
534 else if (type1.id != dbg_itype_none)
536 types_get_info(&type1, TI_GET_LENGTH, &scale2);
537 rtn.type = exp1.type;
539 else if (type2.id != dbg_itype_none)
541 types_get_info(&type2, TI_GET_LENGTH, &scale1);
542 rtn.type = exp2.type;
544 exp->un.binop.result = (types_extract_as_integer(&exp1) * (DWORD)scale1 -
545 types_extract_as_integer(&exp2) * (DWORD)scale2) / (DWORD)scale3;
548 rtn.type.id = dbg_itype_segptr;
550 be_cpu->build_addr(dbg_curr_thread->handle, &dbg_context, &rtn.addr,
551 types_extract_as_integer(&exp1), types_extract_as_integer(&exp2));
554 exp->un.binop.result = (types_extract_as_integer(&exp1) || types_extract_as_integer(&exp2));
557 exp->un.binop.result = (types_extract_as_integer(&exp1) && types_extract_as_integer(&exp2));
560 exp->un.binop.result = (types_extract_as_integer(&exp1) | types_extract_as_integer(&exp2));
563 exp->un.binop.result = (types_extract_as_integer(&exp1) & types_extract_as_integer(&exp2));
566 exp->un.binop.result = (types_extract_as_integer(&exp1) ^ types_extract_as_integer(&exp2));
569 exp->un.binop.result = (types_extract_as_integer(&exp1) == types_extract_as_integer(&exp2));
572 exp->un.binop.result = (types_extract_as_integer(&exp1) > types_extract_as_integer(&exp2));
575 exp->un.binop.result = (types_extract_as_integer(&exp1) < types_extract_as_integer(&exp2));
578 exp->un.binop.result = (types_extract_as_integer(&exp1) >= types_extract_as_integer(&exp2));
581 exp->un.binop.result = (types_extract_as_integer(&exp1) <= types_extract_as_integer(&exp2));
584 exp->un.binop.result = (types_extract_as_integer(&exp1) != types_extract_as_integer(&exp2));
587 exp->un.binop.result = ((unsigned long)types_extract_as_integer(&exp1) << types_extract_as_integer(&exp2));
590 exp->un.binop.result = ((unsigned long)types_extract_as_integer(&exp1) >> types_extract_as_integer(&exp2));
593 exp->un.binop.result = (types_extract_as_integer(&exp1) * types_extract_as_integer(&exp2));
596 if (types_extract_as_integer(&exp2) == 0) RaiseException(DEBUG_STATUS_DIV_BY_ZERO, 0, 0, NULL);
597 exp->un.binop.result = (types_extract_as_integer(&exp1) / types_extract_as_integer(&exp2));
600 if (types_extract_as_integer(&exp2) == 0) RaiseException(DEBUG_STATUS_DIV_BY_ZERO, 0, 0, NULL);
601 exp->un.binop.result = (types_extract_as_integer(&exp1) % types_extract_as_integer(&exp2));
604 if (!types_array_index(&exp1, types_extract_as_integer(&exp2), &rtn))
605 RaiseException(DEBUG_STATUS_CANT_DEREF, 0, 0, NULL);
607 default: RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
611 rtn.cookie = DLV_HOST;
612 exp1 = expr_eval(exp->un.unop.exp1);
613 if (exp1.type.id == dbg_itype_none) RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
614 rtn.addr.Offset = (ULONG_PTR)&exp->un.unop.result;
615 rtn.type.id = dbg_itype_signed_int;
617 switch (exp->un.unop.unop_type)
620 exp->un.unop.result = -types_extract_as_integer(&exp1);
623 exp->un.unop.result = !types_extract_as_integer(&exp1);
626 exp->un.unop.result = ~types_extract_as_integer(&exp1);
629 if (!types_array_index(&exp1, 0, &rtn))
630 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
632 case EXP_OP_FORCE_DEREF:
634 if (exp1.cookie == DLV_TARGET)
635 dbg_read_memory(memory_to_linear_addr(&exp1.addr), &rtn.addr.Offset, sizeof(rtn.addr.Offset));
638 /* only do it on linear addresses */
639 if (exp1.addr.Mode != AddrModeFlat)
640 RaiseException(DEBUG_STATUS_CANT_DEREF, 0, 0, NULL);
641 exp->un.unop.result = (ULONG_PTR)memory_to_linear_addr(&exp1.addr);
642 rtn.type = types_find_pointer(&exp1.type);
643 if (rtn.type.id == dbg_itype_none)
644 RaiseException(DEBUG_STATUS_CANT_DEREF, 0, 0, NULL);
646 default: RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
650 WINE_FIXME("Unexpected expression (%d).\n", exp->type);
651 RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
658 int expr_print(const struct expr* exp)
661 struct dbg_type type;
666 WINE_FIXME("No longer supported (missing module base)\n");
668 switch (exp->un.cast.cast_to.type)
670 case type_expr_type_id:
672 type.id = exp->un.cast.cast_to.type;
673 types_print_type(&type, FALSE); break;
674 case type_expr_udt_class:
675 dbg_printf("class %s", exp->un.cast.cast_to.u.name); break;
676 case type_expr_udt_struct:
677 dbg_printf("struct %s", exp->un.cast.cast_to.u.name); break;
678 case type_expr_udt_union:
679 dbg_printf("union %s", exp->un.cast.cast_to.u.name); break;
680 case type_expr_enumeration:
681 dbg_printf("enum %s", exp->un.cast.cast_to.u.name); break;
683 for (i = 0; i < exp->un.cast.cast_to.deref_count; i++)
686 expr_print(exp->un.cast.expr);
689 case EXPR_TYPE_INTVAR:
690 dbg_printf("$%s", exp->un.intvar.name);
692 case EXPR_TYPE_U_CONST:
693 dbg_printf("%lu", exp->un.u_const.value);
695 case EXPR_TYPE_S_CONST:
696 dbg_printf("%ld", exp->un.s_const.value);
698 case EXPR_TYPE_STRING:
699 dbg_printf("\"%s\"", exp->un.string.str);
701 case EXPR_TYPE_SYMBOL:
702 dbg_printf("%s" , exp->un.symbol.name);
704 case EXPR_TYPE_PSTRUCT:
705 expr_print(exp->un.structure.exp1);
706 dbg_printf("->%s", exp->un.structure.element_name);
708 case EXPR_TYPE_STRUCT:
709 expr_print(exp->un.structure.exp1);
710 dbg_printf(".%s", exp->un.structure.element_name);
713 dbg_printf("%s(",exp->un.call.funcname);
714 for (i = 0; i < exp->un.call.nargs; i++)
716 expr_print(exp->un.call.arg[i]);
717 if (i != exp->un.call.nargs - 1) dbg_printf(", ");
721 case EXPR_TYPE_BINOP:
723 expr_print(exp->un.binop.exp1);
724 switch (exp->un.binop.binop_type)
726 case EXP_OP_ADD: dbg_printf(" + "); break;
727 case EXP_OP_SUB: dbg_printf(" - "); break;
728 case EXP_OP_SEG: dbg_printf(":"); break;
729 case EXP_OP_LOR: dbg_printf(" || "); break;
730 case EXP_OP_LAND: dbg_printf(" && "); break;
731 case EXP_OP_OR: dbg_printf(" | "); break;
732 case EXP_OP_AND: dbg_printf(" & "); break;
733 case EXP_OP_XOR: dbg_printf(" ^ "); break;
734 case EXP_OP_EQ: dbg_printf(" == "); break;
735 case EXP_OP_GT: dbg_printf(" > "); break;
736 case EXP_OP_LT: dbg_printf(" < "); break;
737 case EXP_OP_GE: dbg_printf(" >= "); break;
738 case EXP_OP_LE: dbg_printf(" <= "); break;
739 case EXP_OP_NE: dbg_printf(" != "); break;
740 case EXP_OP_SHL: dbg_printf(" << "); break;
741 case EXP_OP_SHR: dbg_printf(" >> "); break;
742 case EXP_OP_MUL: dbg_printf(" * "); break;
743 case EXP_OP_DIV: dbg_printf(" / "); break;
744 case EXP_OP_REM: dbg_printf(" %% "); break;
745 case EXP_OP_ARR: dbg_printf("["); break;
748 expr_print(exp->un.binop.exp2);
749 if (exp->un.binop.binop_type == EXP_OP_ARR) dbg_printf("]");
753 switch (exp->un.unop.unop_type)
755 case EXP_OP_NEG: dbg_printf("-"); break;
756 case EXP_OP_NOT: dbg_printf("!"); break;
757 case EXP_OP_LNOT: dbg_printf("~"); break;
758 case EXP_OP_DEREF: dbg_printf("*"); break;
759 case EXP_OP_ADDR: dbg_printf("&"); break;
761 expr_print(exp->un.unop.exp1);
764 WINE_FIXME("Unexpected expression (%u).\n", exp->type);
765 RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
772 struct expr* expr_clone(const struct expr* exp, BOOL *local_binding)
777 rtn = HeapAlloc(GetProcessHeap(), 0, sizeof(struct expr));
780 * First copy the contents of the expression itself.
787 rtn->un.cast.expr = expr_clone(exp->un.cast.expr, local_binding);
789 case EXPR_TYPE_INTVAR:
790 rtn->un.intvar.name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.intvar.name) + 1), exp->un.intvar.name);
792 case EXPR_TYPE_U_CONST:
793 case EXPR_TYPE_S_CONST:
795 case EXPR_TYPE_STRING:
796 rtn->un.string.str = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.string.str) + 1), exp->un.string.str);
798 case EXPR_TYPE_SYMBOL:
799 rtn->un.symbol.name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.symbol.name) + 1), exp->un.symbol.name);
800 if (local_binding && symbol_is_local(exp->un.symbol.name))
801 *local_binding = TRUE;
803 case EXPR_TYPE_PSTRUCT:
804 case EXPR_TYPE_STRUCT:
805 rtn->un.structure.exp1 = expr_clone(exp->un.structure.exp1, local_binding);
806 rtn->un.structure.element_name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.structure.element_name) + 1), exp->un.structure.element_name);
809 for (i = 0; i < exp->un.call.nargs; i++)
811 rtn->un.call.arg[i] = expr_clone(exp->un.call.arg[i], local_binding);
813 rtn->un.call.funcname = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.call.funcname) + 1), exp->un.call.funcname);
815 case EXPR_TYPE_BINOP:
816 rtn->un.binop.exp1 = expr_clone(exp->un.binop.exp1, local_binding);
817 rtn->un.binop.exp2 = expr_clone(exp->un.binop.exp2, local_binding);
820 rtn->un.unop.exp1 = expr_clone(exp->un.unop.exp1, local_binding);
823 WINE_FIXME("Unexpected expression (%u).\n", exp->type);
824 RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
833 * Recursively go through an expression tree and free all memory associated
836 int expr_free(struct expr* exp)
843 expr_free(exp->un.cast.expr);
845 case EXPR_TYPE_INTVAR:
846 HeapFree(GetProcessHeap(), 0, (char*)exp->un.intvar.name);
848 case EXPR_TYPE_U_CONST:
849 case EXPR_TYPE_S_CONST:
851 case EXPR_TYPE_STRING:
852 HeapFree(GetProcessHeap(), 0, (char*)exp->un.string.str);
854 case EXPR_TYPE_SYMBOL:
855 HeapFree(GetProcessHeap(), 0, (char*)exp->un.symbol.name);
857 case EXPR_TYPE_PSTRUCT:
858 case EXPR_TYPE_STRUCT:
859 expr_free(exp->un.structure.exp1);
860 HeapFree(GetProcessHeap(), 0, (char*)exp->un.structure.element_name);
863 for (i = 0; i < exp->un.call.nargs; i++)
865 expr_free(exp->un.call.arg[i]);
867 HeapFree(GetProcessHeap(), 0, (char*)exp->un.call.funcname);
869 case EXPR_TYPE_BINOP:
870 expr_free(exp->un.binop.exp1);
871 expr_free(exp->un.binop.exp2);
874 expr_free(exp->un.unop.exp1);
877 WINE_FIXME("Unexpected expression (%u).\n", exp->type);
878 RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
882 HeapFree(GetProcessHeap(), 0, exp);