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 DWORD64 scale1, scale2, scale3;
282 struct dbg_type type1, type2;
284 const struct dbg_internal_var* div;
287 rtn.type.id = dbg_itype_none;
289 rtn.addr.Mode = AddrModeFlat;
291 rtn.addr.Segment = 0;
296 /* this is really brute force, we simply change the type... without
297 * checking if this is right or not
299 rtn = expr_eval(exp->un.cast.expr);
300 switch (exp->un.cast.cast_to.type)
302 case type_expr_type_id:
303 if (exp->un.cast.cast_to.u.type.id == dbg_itype_none)
305 dbg_printf("Can't cast to unknown type\n");
306 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
308 rtn.type = exp->un.cast.cast_to.u.type;
310 case type_expr_udt_class:
311 case type_expr_udt_struct:
312 case type_expr_udt_union:
313 rtn.type = types_find_type(rtn.type.module, exp->un.cast.cast_to.u.name,
315 if (rtn.type.id == dbg_itype_none)
317 dbg_printf("Can't cast to UDT %s\n", exp->un.cast.cast_to.u.name);
318 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
321 case type_expr_enumeration:
322 rtn.type = types_find_type(rtn.type.module, exp->un.cast.cast_to.u.name,
324 if (rtn.type.id == dbg_itype_none)
326 dbg_printf("Can't cast to enumeration %s\n", exp->un.cast.cast_to.u.name);
327 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
331 dbg_printf("Unsupported cast type %u\n", exp->un.cast.cast_to.type);
332 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
334 for (i = 0; i < exp->un.cast.cast_to.deref_count; i++)
336 rtn.type = types_find_pointer(&rtn.type);
337 if (rtn.type.id == dbg_itype_none)
339 dbg_printf("Cannot find pointer type\n");
340 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
344 case EXPR_TYPE_STRING:
345 rtn.cookie = DLV_HOST;
346 rtn.type.id = dbg_itype_astring;
348 rtn.addr.Offset = (ULONG_PTR)&exp->un.string.str;
350 case EXPR_TYPE_U_CONST:
351 rtn.cookie = DLV_HOST;
352 rtn.type.id = dbg_itype_unsigned_long_int;
354 rtn.addr.Offset = (ULONG_PTR)&exp->un.u_const.value;
356 case EXPR_TYPE_S_CONST:
357 rtn.cookie = DLV_HOST;
358 rtn.type.id = dbg_itype_signed_long_int;
360 rtn.addr.Offset = (ULONG_PTR)&exp->un.s_const.value;
362 case EXPR_TYPE_SYMBOL:
363 switch (symbol_get_lvalue(exp->un.symbol.name, -1, &rtn, FALSE))
368 RaiseException(DEBUG_STATUS_NO_SYMBOL, 0, 0, NULL);
369 /* should never be here */
371 RaiseException(DEBUG_STATUS_ABORT, 0, 0, NULL);
372 /* should never be here */
375 case EXPR_TYPE_PSTRUCT:
376 exp1 = expr_eval(exp->un.structure.exp1);
377 if (exp1.type.id == dbg_itype_none || !types_array_index(&exp1, 0, &rtn) ||
378 rtn.type.id == dbg_itype_none)
379 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
380 if (!types_udt_find_element(&rtn, exp->un.structure.element_name,
381 &exp->un.structure.result))
383 dbg_printf("%s\n", exp->un.structure.element_name);
384 RaiseException(DEBUG_STATUS_NO_FIELD, 0, 0, NULL);
387 case EXPR_TYPE_STRUCT:
388 exp1 = expr_eval(exp->un.structure.exp1);
389 if (exp1.type.id == dbg_itype_none) RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
391 if (!types_udt_find_element(&rtn, exp->un.structure.element_name,
392 &exp->un.structure.result))
394 dbg_printf("%s\n", exp->un.structure.element_name);
395 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 */
427 /* FIXME: NEWDBG NIY */
428 /* Anyway, I wonder how this could work depending on the calling order of
429 * the function (cdecl vs pascal for example)
433 fptr = (int (*)()) rtn.addr.off;
434 switch (exp->un.call.nargs)
437 exp->un.call.result = (*fptr)();
440 exp->un.call.result = (*fptr)(cexp[0]);
443 exp->un.call.result = (*fptr)(cexp[0], cexp[1]);
446 exp->un.call.result = (*fptr)(cexp[0], cexp[1], cexp[2]);
449 exp->un.call.result = (*fptr)(cexp[0], cexp[1], cexp[2], cexp[3]);
452 exp->un.call.result = (*fptr)(cexp[0], cexp[1], cexp[2], cexp[3], cexp[4]);
456 dbg_printf("Function call no longer implemented\n");
457 /* would need to set up a call to this function, and then restore the current
458 * context afterwards...
460 exp->un.call.result = 0;
462 rtn.cookie = DLV_HOST;
463 /* get return type from function signature tupe */
464 types_get_info(&rtn.type, TI_GET_TYPE, &rtn.type.id);
465 rtn.addr.Offset = (ULONG_PTR)&exp->un.call.result;
467 case EXPR_TYPE_INTVAR:
468 rtn.cookie = DLV_HOST;
469 if (!(div = dbg_get_internal_var(exp->un.intvar.name)))
470 RaiseException(DEBUG_STATUS_NO_SYMBOL, 0, 0, NULL);
471 rtn.type.id = div->typeid;
473 rtn.addr.Offset = (ULONG_PTR)div->pval;
475 case EXPR_TYPE_BINOP:
476 rtn.cookie = DLV_HOST;
477 exp1 = expr_eval(exp->un.binop.exp1);
478 exp2 = expr_eval(exp->un.binop.exp2);
479 if (exp1.type.id == dbg_itype_none || exp2.type.id == dbg_itype_none)
480 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
481 rtn.type.id = dbg_itype_signed_int;
483 rtn.addr.Offset = (ULONG_PTR)&exp->un.binop.result;
486 switch (exp->un.binop.binop_type)
489 if (!types_get_info(&exp1.type, TI_GET_SYMTAG, &tag) ||
490 tag != SymTagPointerType ||
491 !types_get_info(&exp1.type, TI_GET_TYPE, &type1.id))
492 type1.id = dbg_itype_none;
493 if (!types_get_info(&exp2.type, TI_GET_SYMTAG, &tag) ||
494 tag != SymTagPointerType ||
495 !types_get_info(&exp2.type, TI_GET_TYPE, &type2.id))
496 type2.id = dbg_itype_none;
499 if (type1.id != dbg_itype_none && type2.id != dbg_itype_none)
500 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
501 if (type1.id != dbg_itype_none)
503 types_get_info(&type1, TI_GET_LENGTH, &scale2);
504 rtn.type = exp1.type;
506 else if (type2.id != dbg_itype_none)
508 types_get_info(&type2, TI_GET_LENGTH, &scale1);
509 rtn.type = exp2.type;
511 exp->un.binop.result = types_extract_as_integer(&exp1) * (DWORD)scale1 +
512 (DWORD)scale2 * types_extract_as_integer(&exp2);
515 if (!types_get_info(&exp1.type, TI_GET_SYMTAG, &tag) ||
516 tag != SymTagPointerType ||
517 !types_get_info(&exp1.type, TI_GET_TYPE, &type1.id))
518 type1.id = dbg_itype_none;
519 if (!types_get_info(&exp2.type, TI_GET_SYMTAG, &tag) ||
520 tag != SymTagPointerType ||
521 !types_get_info(&exp2.type, TI_GET_TYPE, &type2.id))
522 type2.id = dbg_itype_none;
526 if (type1.id != dbg_itype_none && type2.id != dbg_itype_none)
528 WINE_FIXME("This may fail (if module base address are wrongly calculated)\n");
529 if (memcmp(&type1, &type2, sizeof(struct dbg_type)))
530 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
531 types_get_info(&type1, TI_GET_LENGTH, &scale3);
533 else if (type1.id != dbg_itype_none)
535 types_get_info(&type1, TI_GET_LENGTH, &scale2);
536 rtn.type = exp1.type;
538 else if (type2.id != dbg_itype_none)
540 types_get_info(&type2, TI_GET_LENGTH, &scale1);
541 rtn.type = exp2.type;
543 exp->un.binop.result = (types_extract_as_integer(&exp1) * (DWORD)scale1 -
544 types_extract_as_integer(&exp2) * (DWORD)scale2) / (DWORD)scale3;
547 rtn.type.id = dbg_itype_segptr;
549 be_cpu->build_addr(dbg_curr_thread->handle, &dbg_context, &rtn.addr,
550 types_extract_as_integer(&exp1), types_extract_as_integer(&exp2));
553 exp->un.binop.result = (types_extract_as_integer(&exp1) || types_extract_as_integer(&exp2));
556 exp->un.binop.result = (types_extract_as_integer(&exp1) && types_extract_as_integer(&exp2));
559 exp->un.binop.result = (types_extract_as_integer(&exp1) | types_extract_as_integer(&exp2));
562 exp->un.binop.result = (types_extract_as_integer(&exp1) & types_extract_as_integer(&exp2));
565 exp->un.binop.result = (types_extract_as_integer(&exp1) ^ types_extract_as_integer(&exp2));
568 exp->un.binop.result = (types_extract_as_integer(&exp1) == types_extract_as_integer(&exp2));
571 exp->un.binop.result = (types_extract_as_integer(&exp1) > types_extract_as_integer(&exp2));
574 exp->un.binop.result = (types_extract_as_integer(&exp1) < types_extract_as_integer(&exp2));
577 exp->un.binop.result = (types_extract_as_integer(&exp1) >= types_extract_as_integer(&exp2));
580 exp->un.binop.result = (types_extract_as_integer(&exp1) <= types_extract_as_integer(&exp2));
583 exp->un.binop.result = (types_extract_as_integer(&exp1) != types_extract_as_integer(&exp2));
586 exp->un.binop.result = ((unsigned long)types_extract_as_integer(&exp1) << types_extract_as_integer(&exp2));
589 exp->un.binop.result = ((unsigned long)types_extract_as_integer(&exp1) >> types_extract_as_integer(&exp2));
592 exp->un.binop.result = (types_extract_as_integer(&exp1) * types_extract_as_integer(&exp2));
595 if (types_extract_as_integer(&exp2) == 0) RaiseException(DEBUG_STATUS_DIV_BY_ZERO, 0, 0, NULL);
596 exp->un.binop.result = (types_extract_as_integer(&exp1) / types_extract_as_integer(&exp2));
599 if (types_extract_as_integer(&exp2) == 0) RaiseException(DEBUG_STATUS_DIV_BY_ZERO, 0, 0, NULL);
600 exp->un.binop.result = (types_extract_as_integer(&exp1) % types_extract_as_integer(&exp2));
603 if (!types_array_index(&exp1, types_extract_as_integer(&exp2), &rtn))
604 RaiseException(DEBUG_STATUS_CANT_DEREF, 0, 0, NULL);
606 default: RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
610 rtn.cookie = DLV_HOST;
611 exp1 = expr_eval(exp->un.unop.exp1);
612 if (exp1.type.id == dbg_itype_none) RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
613 rtn.addr.Offset = (ULONG_PTR)&exp->un.unop.result;
614 rtn.type.id = dbg_itype_signed_int;
616 switch (exp->un.unop.unop_type)
619 exp->un.unop.result = -types_extract_as_integer(&exp1);
622 exp->un.unop.result = !types_extract_as_integer(&exp1);
625 exp->un.unop.result = ~types_extract_as_integer(&exp1);
628 if (!types_array_index(&exp1, 0, &rtn))
629 RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL);
631 case EXP_OP_FORCE_DEREF:
633 if (exp1.cookie == DLV_TARGET)
634 dbg_read_memory(memory_to_linear_addr(&exp1.addr), &rtn.addr.Offset, sizeof(rtn.addr.Offset));
637 /* only do it on linear addresses */
638 if (exp1.addr.Mode != AddrModeFlat)
639 RaiseException(DEBUG_STATUS_CANT_DEREF, 0, 0, NULL);
640 exp->un.unop.result = (ULONG_PTR)memory_to_linear_addr(&exp1.addr);
641 rtn.type = types_find_pointer(&exp1.type);
642 if (rtn.type.id == dbg_itype_none)
643 RaiseException(DEBUG_STATUS_CANT_DEREF, 0, 0, NULL);
645 default: RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
649 WINE_FIXME("Unexpected expression (%d).\n", exp->type);
650 RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
657 int expr_print(const struct expr* exp)
660 struct dbg_type type;
665 WINE_FIXME("No longer supported (missing module base)\n");
667 switch (exp->un.cast.cast_to.type)
669 case type_expr_type_id:
671 type.id = exp->un.cast.cast_to.type;
672 types_print_type(&type, FALSE); break;
673 case type_expr_udt_class:
674 dbg_printf("class %s", exp->un.cast.cast_to.u.name); break;
675 case type_expr_udt_struct:
676 dbg_printf("struct %s", exp->un.cast.cast_to.u.name); break;
677 case type_expr_udt_union:
678 dbg_printf("union %s", exp->un.cast.cast_to.u.name); break;
679 case type_expr_enumeration:
680 dbg_printf("enum %s", exp->un.cast.cast_to.u.name); break;
682 for (i = 0; i < exp->un.cast.cast_to.deref_count; i++)
685 expr_print(exp->un.cast.expr);
688 case EXPR_TYPE_INTVAR:
689 dbg_printf("$%s", exp->un.intvar.name);
691 case EXPR_TYPE_U_CONST:
692 dbg_printf("%lu", exp->un.u_const.value);
694 case EXPR_TYPE_S_CONST:
695 dbg_printf("%ld", exp->un.s_const.value);
697 case EXPR_TYPE_STRING:
698 dbg_printf("\"%s\"", exp->un.string.str);
700 case EXPR_TYPE_SYMBOL:
701 dbg_printf("%s" , exp->un.symbol.name);
703 case EXPR_TYPE_PSTRUCT:
704 expr_print(exp->un.structure.exp1);
705 dbg_printf("->%s", exp->un.structure.element_name);
707 case EXPR_TYPE_STRUCT:
708 expr_print(exp->un.structure.exp1);
709 dbg_printf(".%s", exp->un.structure.element_name);
712 dbg_printf("%s(",exp->un.call.funcname);
713 for (i = 0; i < exp->un.call.nargs; i++)
715 expr_print(exp->un.call.arg[i]);
716 if (i != exp->un.call.nargs - 1) dbg_printf(", ");
720 case EXPR_TYPE_BINOP:
722 expr_print(exp->un.binop.exp1);
723 switch (exp->un.binop.binop_type)
725 case EXP_OP_ADD: dbg_printf(" + "); break;
726 case EXP_OP_SUB: dbg_printf(" - "); break;
727 case EXP_OP_SEG: dbg_printf(":"); break;
728 case EXP_OP_LOR: dbg_printf(" || "); break;
729 case EXP_OP_LAND: dbg_printf(" && "); break;
730 case EXP_OP_OR: dbg_printf(" | "); break;
731 case EXP_OP_AND: dbg_printf(" & "); break;
732 case EXP_OP_XOR: dbg_printf(" ^ "); break;
733 case EXP_OP_EQ: dbg_printf(" == "); break;
734 case EXP_OP_GT: dbg_printf(" > "); break;
735 case EXP_OP_LT: dbg_printf(" < "); break;
736 case EXP_OP_GE: dbg_printf(" >= "); break;
737 case EXP_OP_LE: dbg_printf(" <= "); break;
738 case EXP_OP_NE: dbg_printf(" != "); break;
739 case EXP_OP_SHL: dbg_printf(" << "); break;
740 case EXP_OP_SHR: dbg_printf(" >> "); break;
741 case EXP_OP_MUL: dbg_printf(" * "); break;
742 case EXP_OP_DIV: dbg_printf(" / "); break;
743 case EXP_OP_REM: dbg_printf(" %% "); break;
744 case EXP_OP_ARR: dbg_printf("["); break;
747 expr_print(exp->un.binop.exp2);
748 if (exp->un.binop.binop_type == EXP_OP_ARR) dbg_printf("]");
752 switch (exp->un.unop.unop_type)
754 case EXP_OP_NEG: dbg_printf("-"); break;
755 case EXP_OP_NOT: dbg_printf("!"); break;
756 case EXP_OP_LNOT: dbg_printf("~"); break;
757 case EXP_OP_DEREF: dbg_printf("*"); break;
758 case EXP_OP_ADDR: dbg_printf("&"); break;
760 expr_print(exp->un.unop.exp1);
763 WINE_FIXME("Unexpected expression (%u).\n", exp->type);
764 RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
771 struct expr* expr_clone(const struct expr* exp, BOOL *local_binding)
776 rtn = HeapAlloc(GetProcessHeap(), 0, sizeof(struct expr));
779 * First copy the contents of the expression itself.
786 rtn->un.cast.expr = expr_clone(exp->un.cast.expr, local_binding);
788 case EXPR_TYPE_INTVAR:
789 rtn->un.intvar.name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.intvar.name) + 1), exp->un.intvar.name);
791 case EXPR_TYPE_U_CONST:
792 case EXPR_TYPE_S_CONST:
794 case EXPR_TYPE_STRING:
795 rtn->un.string.str = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.string.str) + 1), exp->un.string.str);
797 case EXPR_TYPE_SYMBOL:
798 rtn->un.symbol.name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.symbol.name) + 1), exp->un.symbol.name);
799 if (local_binding && symbol_is_local(exp->un.symbol.name))
800 *local_binding = TRUE;
802 case EXPR_TYPE_PSTRUCT:
803 case EXPR_TYPE_STRUCT:
804 rtn->un.structure.exp1 = expr_clone(exp->un.structure.exp1, local_binding);
805 rtn->un.structure.element_name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.structure.element_name) + 1), exp->un.structure.element_name);
808 for (i = 0; i < exp->un.call.nargs; i++)
810 rtn->un.call.arg[i] = expr_clone(exp->un.call.arg[i], local_binding);
812 rtn->un.call.funcname = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.call.funcname) + 1), exp->un.call.funcname);
814 case EXPR_TYPE_BINOP:
815 rtn->un.binop.exp1 = expr_clone(exp->un.binop.exp1, local_binding);
816 rtn->un.binop.exp2 = expr_clone(exp->un.binop.exp2, local_binding);
819 rtn->un.unop.exp1 = expr_clone(exp->un.unop.exp1, local_binding);
822 WINE_FIXME("Unexpected expression (%u).\n", exp->type);
823 RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
832 * Recursively go through an expression tree and free all memory associated
835 int expr_free(struct expr* exp)
842 expr_free(exp->un.cast.expr);
844 case EXPR_TYPE_INTVAR:
845 HeapFree(GetProcessHeap(), 0, (char*)exp->un.intvar.name);
847 case EXPR_TYPE_U_CONST:
848 case EXPR_TYPE_S_CONST:
850 case EXPR_TYPE_STRING:
851 HeapFree(GetProcessHeap(), 0, (char*)exp->un.string.str);
853 case EXPR_TYPE_SYMBOL:
854 HeapFree(GetProcessHeap(), 0, (char*)exp->un.symbol.name);
856 case EXPR_TYPE_PSTRUCT:
857 case EXPR_TYPE_STRUCT:
858 expr_free(exp->un.structure.exp1);
859 HeapFree(GetProcessHeap(), 0, (char*)exp->un.structure.element_name);
862 for (i = 0; i < exp->un.call.nargs; i++)
864 expr_free(exp->un.call.arg[i]);
866 HeapFree(GetProcessHeap(), 0, (char*)exp->un.call.funcname);
868 case EXPR_TYPE_BINOP:
869 expr_free(exp->un.binop.exp1);
870 expr_free(exp->un.binop.exp2);
873 expr_free(exp->un.unop.exp1);
876 WINE_FIXME("Unexpected expression (%u).\n", exp->type);
877 RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
881 HeapFree(GetProcessHeap(), 0, exp);