| /* |
| * File expr.c - expression handling for Wine internal debugger. |
| * |
| * Copyright (C) 1997, Eric Youngdale. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #include "config.h" |
| |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdarg.h> |
| |
| #include "debugger.h" |
| #include "expr.h" |
| #include "wine/debug.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(winedbg); |
| |
| struct expr |
| { |
| unsigned int type; |
| union |
| { |
| struct |
| { |
| int value; |
| } s_const; |
| |
| struct |
| { |
| unsigned int value; |
| } u_const; |
| |
| struct |
| { |
| const char* str; |
| } string; |
| |
| struct |
| { |
| const char* name; |
| } symbol; |
| |
| struct |
| { |
| const char* name; |
| } intvar; |
| |
| struct |
| { |
| int unop_type; |
| struct expr* exp1; |
| long int result; |
| } unop; |
| |
| struct |
| { |
| int binop_type; |
| struct expr* exp1; |
| struct expr* exp2; |
| long int result; |
| } binop; |
| |
| struct |
| { |
| struct type_expr_t cast_to; |
| struct expr* expr; |
| } cast; |
| |
| struct |
| { |
| struct expr* exp1; |
| const char* element_name; |
| long int result; |
| } structure; |
| |
| struct |
| { |
| const char* funcname; |
| int nargs; |
| struct expr* arg[5]; |
| long int result; |
| } call; |
| |
| } un; |
| }; |
| |
| #define EXPR_TYPE_S_CONST 0 |
| #define EXPR_TYPE_U_CONST 1 |
| #define EXPR_TYPE_SYMBOL 2 |
| #define EXPR_TYPE_INTVAR 3 |
| #define EXPR_TYPE_BINOP 4 |
| #define EXPR_TYPE_UNOP 5 |
| #define EXPR_TYPE_STRUCT 6 |
| #define EXPR_TYPE_PSTRUCT 7 |
| #define EXPR_TYPE_CALL 8 |
| #define EXPR_TYPE_STRING 9 |
| #define EXPR_TYPE_CAST 10 |
| |
| static char expr_list[4096]; |
| static unsigned int next_expr_free = 0; |
| |
| static struct expr* expr_alloc(void) |
| { |
| struct expr* rtn; |
| |
| rtn = (struct expr*)&expr_list[next_expr_free]; |
| |
| next_expr_free += sizeof(struct expr); |
| assert(next_expr_free < sizeof(expr_list)); |
| |
| return rtn; |
| } |
| |
| void expr_free_all(void) |
| { |
| next_expr_free = 0; |
| } |
| |
| struct expr* expr_alloc_typecast(struct type_expr_t* tet, struct expr* exp) |
| { |
| struct expr* ex; |
| |
| ex = expr_alloc(); |
| |
| ex->type = EXPR_TYPE_CAST; |
| ex->un.cast.cast_to = *tet; |
| ex->un.cast.expr = exp; |
| return ex; |
| } |
| |
| struct expr* expr_alloc_internal_var(const char* name) |
| { |
| struct expr* ex; |
| |
| ex = expr_alloc(); |
| |
| ex->type = EXPR_TYPE_INTVAR; |
| ex->un.intvar.name = name; |
| return ex; |
| } |
| |
| struct expr* expr_alloc_symbol(const char* name) |
| { |
| struct expr* ex; |
| |
| ex = expr_alloc(); |
| |
| ex->type = EXPR_TYPE_SYMBOL; |
| ex->un.symbol.name = name; |
| return ex; |
| } |
| |
| struct expr* expr_alloc_sconstant(int value) |
| { |
| struct expr* ex; |
| |
| ex = expr_alloc(); |
| |
| ex->type = EXPR_TYPE_S_CONST; |
| ex->un.s_const.value = value; |
| return ex; |
| } |
| |
| struct expr* expr_alloc_uconstant(unsigned int value) |
| { |
| struct expr* ex; |
| |
| ex = expr_alloc(); |
| |
| ex->type = EXPR_TYPE_U_CONST; |
| ex->un.u_const.value = value; |
| return ex; |
| } |
| |
| struct expr* expr_alloc_string(const char* str) |
| { |
| struct expr* ex; |
| |
| ex = expr_alloc(); |
| |
| ex->type = EXPR_TYPE_STRING; |
| ex->un.string.str = str; |
| return ex; |
| } |
| |
| struct expr* expr_alloc_binary_op(int op_type, struct expr* exp1, struct expr* exp2) |
| { |
| struct expr* ex; |
| |
| ex = expr_alloc(); |
| |
| ex->type = EXPR_TYPE_BINOP; |
| ex->un.binop.binop_type = op_type; |
| ex->un.binop.exp1 = exp1; |
| ex->un.binop.exp2 = exp2; |
| return ex; |
| } |
| |
| struct expr* expr_alloc_unary_op(int op_type, struct expr* exp1) |
| { |
| struct expr* ex; |
| |
| ex = expr_alloc(); |
| |
| ex->type = EXPR_TYPE_UNOP; |
| ex->un.unop.unop_type = op_type; |
| ex->un.unop.exp1 = exp1; |
| return ex; |
| } |
| |
| struct expr* expr_alloc_struct(struct expr* exp, const char* element) |
| { |
| struct expr* ex; |
| |
| ex = expr_alloc(); |
| |
| ex->type = EXPR_TYPE_STRUCT; |
| ex->un.structure.exp1 = exp; |
| ex->un.structure.element_name = element; |
| return ex; |
| } |
| |
| struct expr* expr_alloc_pstruct(struct expr* exp, const char* element) |
| { |
| struct expr* ex; |
| |
| ex = expr_alloc(); |
| |
| ex->type = EXPR_TYPE_PSTRUCT; |
| ex->un.structure.exp1 = exp; |
| ex->un.structure.element_name = element; |
| return ex; |
| } |
| |
| struct expr* expr_alloc_func_call(const char* funcname, int nargs, ...) |
| { |
| struct expr* ex; |
| va_list ap; |
| int i; |
| |
| ex = expr_alloc(); |
| |
| ex->type = EXPR_TYPE_CALL; |
| ex->un.call.funcname = funcname; |
| ex->un.call.nargs = nargs; |
| |
| va_start(ap, nargs); |
| for (i = 0; i < nargs; i++) |
| { |
| ex->un.call.arg[i] = va_arg(ap, struct expr*); |
| } |
| va_end(ap); |
| return ex; |
| } |
| |
| /****************************************************************** |
| * expr_eval |
| * |
| */ |
| struct dbg_lvalue expr_eval(struct expr* exp) |
| { |
| struct dbg_lvalue rtn; |
| int i; |
| struct dbg_lvalue exp1; |
| struct dbg_lvalue exp2; |
| unsigned int cexp[5]; |
| DWORD64 scale1, scale2, scale3; |
| struct dbg_type type1, type2; |
| DWORD tag; |
| const struct dbg_internal_var* div; |
| |
| rtn.cookie = 0; |
| rtn.type.id = dbg_itype_none; |
| rtn.type.module = 0; |
| rtn.addr.Mode = AddrModeFlat; |
| rtn.addr.Offset = 0; |
| rtn.addr.Segment = 0; |
| |
| switch (exp->type) |
| { |
| case EXPR_TYPE_CAST: |
| /* this is really brute force, we simply change the type... without |
| * checking if this is right or not |
| */ |
| rtn = expr_eval(exp->un.cast.expr); |
| switch (exp->un.cast.cast_to.type) |
| { |
| case type_expr_type_id: |
| if (exp->un.cast.cast_to.u.type.id == dbg_itype_none) |
| { |
| dbg_printf("Can't cast to unknown type\n"); |
| RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| } |
| rtn.type = exp->un.cast.cast_to.u.type; |
| break; |
| case type_expr_udt_class: |
| case type_expr_udt_struct: |
| case type_expr_udt_union: |
| rtn.type = types_find_type(rtn.type.module, exp->un.cast.cast_to.u.name, |
| SymTagUDT); |
| if (rtn.type.id == dbg_itype_none) |
| { |
| dbg_printf("Can't cast to UDT %s\n", exp->un.cast.cast_to.u.name); |
| RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| } |
| break; |
| case type_expr_enumeration: |
| rtn.type = types_find_type(rtn.type.module, exp->un.cast.cast_to.u.name, |
| SymTagEnum); |
| if (rtn.type.id == dbg_itype_none) |
| { |
| dbg_printf("Can't cast to enumeration %s\n", exp->un.cast.cast_to.u.name); |
| RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| } |
| break; |
| default: |
| dbg_printf("Unsupported cast type %u\n", exp->un.cast.cast_to.type); |
| RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| } |
| for (i = 0; i < exp->un.cast.cast_to.deref_count; i++) |
| { |
| rtn.type = types_find_pointer(&rtn.type); |
| if (rtn.type.id == dbg_itype_none) |
| { |
| dbg_printf("Cannot find pointer type\n"); |
| RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| } |
| } |
| break; |
| case EXPR_TYPE_STRING: |
| rtn.cookie = DLV_HOST; |
| rtn.type.id = dbg_itype_astring; |
| rtn.type.module = 0; |
| rtn.addr.Offset = (ULONG_PTR)&exp->un.string.str; |
| break; |
| case EXPR_TYPE_U_CONST: |
| rtn.cookie = DLV_HOST; |
| rtn.type.id = dbg_itype_unsigned_int; |
| rtn.type.module = 0; |
| rtn.addr.Offset = (ULONG_PTR)&exp->un.u_const.value; |
| break; |
| case EXPR_TYPE_S_CONST: |
| rtn.cookie = DLV_HOST; |
| rtn.type.id = dbg_itype_signed_int; |
| rtn.type.module = 0; |
| rtn.addr.Offset = (ULONG_PTR)&exp->un.s_const.value; |
| break; |
| case EXPR_TYPE_SYMBOL: |
| switch (symbol_get_lvalue(exp->un.symbol.name, -1, &rtn, FALSE)) |
| { |
| case sglv_found: |
| break; |
| case sglv_unknown: |
| RaiseException(DEBUG_STATUS_NO_SYMBOL, 0, 0, NULL); |
| /* should never be here */ |
| case sglv_aborted: |
| RaiseException(DEBUG_STATUS_ABORT, 0, 0, NULL); |
| /* should never be here */ |
| } |
| break; |
| case EXPR_TYPE_PSTRUCT: |
| exp1 = expr_eval(exp->un.structure.exp1); |
| if (exp1.type.id == dbg_itype_none || !types_deref(&exp1, &rtn) || |
| rtn.type.id == dbg_itype_none) |
| RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| if (!types_udt_find_element(&rtn, exp->un.structure.element_name, |
| &exp->un.structure.result)) |
| { |
| dbg_printf("%s\n", exp->un.structure.element_name); |
| RaiseException(DEBUG_STATUS_NO_FIELD, 0, 0, NULL); |
| } |
| break; |
| case EXPR_TYPE_STRUCT: |
| exp1 = expr_eval(exp->un.structure.exp1); |
| if (exp1.type.id == dbg_itype_none) RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| rtn = exp1; |
| if (!types_udt_find_element(&rtn, exp->un.structure.element_name, |
| &exp->un.structure.result)) |
| { |
| dbg_printf("%s\n", exp->un.structure.element_name); |
| RaiseException(DEBUG_STATUS_NO_FIELD, 0, 0, NULL); |
| } |
| break; |
| case EXPR_TYPE_CALL: |
| /* |
| * First, evaluate all of the arguments. If any of them are not |
| * evaluable, then bail. |
| */ |
| for (i = 0; i < exp->un.call.nargs; i++) |
| { |
| exp1 = expr_eval(exp->un.call.arg[i]); |
| if (exp1.type.id == dbg_itype_none) |
| RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| cexp[i] = types_extract_as_integer(&exp1); |
| } |
| |
| /* |
| * Now look up the address of the function itself. |
| */ |
| switch (symbol_get_lvalue(exp->un.call.funcname, -1, &rtn, FALSE)) |
| { |
| case sglv_found: |
| break; |
| case sglv_unknown: |
| RaiseException(DEBUG_STATUS_NO_SYMBOL, 0, 0, NULL); |
| /* should never be here */ |
| case sglv_aborted: |
| RaiseException(DEBUG_STATUS_ABORT, 0, 0, NULL); |
| /* should never be here */ |
| } |
| |
| #if 0 |
| /* FIXME: NEWDBG NIY */ |
| /* Anyway, I wonder how this could work depending on the calling order of |
| * the function (cdecl vs pascal for example) |
| */ |
| int (*fptr)(); |
| |
| fptr = (int (*)()) rtn.addr.off; |
| switch (exp->un.call.nargs) |
| { |
| case 0: |
| exp->un.call.result = (*fptr)(); |
| break; |
| case 1: |
| exp->un.call.result = (*fptr)(cexp[0]); |
| break; |
| case 2: |
| exp->un.call.result = (*fptr)(cexp[0], cexp[1]); |
| break; |
| case 3: |
| exp->un.call.result = (*fptr)(cexp[0], cexp[1], cexp[2]); |
| break; |
| case 4: |
| exp->un.call.result = (*fptr)(cexp[0], cexp[1], cexp[2], cexp[3]); |
| break; |
| case 5: |
| exp->un.call.result = (*fptr)(cexp[0], cexp[1], cexp[2], cexp[3], cexp[4]); |
| break; |
| } |
| #else |
| dbg_printf("Function call no longer implemented\n"); |
| /* would need to set up a call to this function, and then restore the current |
| * context afterwards... |
| */ |
| exp->un.call.result = 0; |
| #endif |
| rtn.cookie = DLV_HOST; |
| /* get return type from function signature tupe */ |
| types_get_info(&rtn.type, TI_GET_TYPE, &rtn.type.id); |
| rtn.addr.Offset = (ULONG_PTR)&exp->un.call.result; |
| break; |
| case EXPR_TYPE_INTVAR: |
| rtn.cookie = DLV_HOST; |
| if (!(div = dbg_get_internal_var(exp->un.intvar.name))) |
| RaiseException(DEBUG_STATUS_NO_SYMBOL, 0, 0, NULL); |
| rtn.type.id = div->typeid; |
| rtn.type.module = 0; |
| rtn.addr.Offset = (ULONG_PTR)div->pval; |
| break; |
| case EXPR_TYPE_BINOP: |
| rtn.cookie = DLV_HOST; |
| exp1 = expr_eval(exp->un.binop.exp1); |
| exp2 = expr_eval(exp->un.binop.exp2); |
| if (exp1.type.id == dbg_itype_none || exp2.type.id == dbg_itype_none) |
| RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| rtn.type.id = dbg_itype_signed_int; |
| rtn.type.module = 0; |
| rtn.addr.Offset = (ULONG_PTR)&exp->un.binop.result; |
| type1 = exp1.type; |
| type2 = exp2.type; |
| switch (exp->un.binop.binop_type) |
| { |
| case EXP_OP_ADD: |
| if (!types_get_info(&exp1.type, TI_GET_SYMTAG, &tag) || |
| tag != SymTagPointerType || |
| !types_get_info(&exp1.type, TI_GET_TYPE, &type1.id)) |
| type1.id = dbg_itype_none; |
| if (!types_get_info(&exp2.type, TI_GET_SYMTAG, &tag) || |
| tag != SymTagPointerType || |
| !types_get_info(&exp2.type, TI_GET_TYPE, &type2.id)) |
| type2.id = dbg_itype_none; |
| scale1 = 1; |
| scale2 = 1; |
| if (type1.id != dbg_itype_none && type2.id != dbg_itype_none) |
| RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| if (type1.id != dbg_itype_none) |
| { |
| types_get_info(&type1, TI_GET_LENGTH, &scale2); |
| rtn.type = exp1.type; |
| } |
| else if (type2.id != dbg_itype_none) |
| { |
| types_get_info(&type2, TI_GET_LENGTH, &scale1); |
| rtn.type = exp2.type; |
| } |
| exp->un.binop.result = types_extract_as_integer(&exp1) * (DWORD)scale1 + |
| (DWORD)scale2 * types_extract_as_integer(&exp2); |
| break; |
| case EXP_OP_SUB: |
| if (!types_get_info(&exp1.type, TI_GET_SYMTAG, &tag) || |
| tag != SymTagPointerType || |
| !types_get_info(&exp1.type, TI_GET_TYPE, &type1.id)) |
| type1.id = dbg_itype_none; |
| if (!types_get_info(&exp2.type, TI_GET_SYMTAG, &tag) || |
| tag != SymTagPointerType || |
| !types_get_info(&exp2.type, TI_GET_TYPE, &type2.id)) |
| type2.id = dbg_itype_none; |
| scale1 = 1; |
| scale2 = 1; |
| scale3 = 1; |
| if (type1.id != dbg_itype_none && type2.id != dbg_itype_none) |
| { |
| WINE_FIXME("This may fail (if module base address are wrongly calculated)\n"); |
| if (memcmp(&type1, &type2, sizeof(struct dbg_type))) |
| RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| types_get_info(&type1, TI_GET_LENGTH, &scale3); |
| } |
| else if (type1.id != dbg_itype_none) |
| { |
| types_get_info(&type1, TI_GET_LENGTH, &scale2); |
| rtn.type = exp1.type; |
| } |
| else if (type2.id != dbg_itype_none) |
| { |
| types_get_info(&type2, TI_GET_LENGTH, &scale1); |
| rtn.type = exp2.type; |
| } |
| exp->un.binop.result = (types_extract_as_integer(&exp1) * (DWORD)scale1 - |
| types_extract_as_integer(&exp2) * (DWORD)scale2) / (DWORD)scale3; |
| break; |
| case EXP_OP_SEG: |
| rtn.type.id = dbg_itype_segptr; |
| rtn.type.module = 0; |
| be_cpu->build_addr(dbg_curr_thread->handle, &dbg_context, &rtn.addr, |
| types_extract_as_integer(&exp1), types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_LOR: |
| exp->un.binop.result = (types_extract_as_integer(&exp1) || types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_LAND: |
| exp->un.binop.result = (types_extract_as_integer(&exp1) && types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_OR: |
| exp->un.binop.result = (types_extract_as_integer(&exp1) | types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_AND: |
| exp->un.binop.result = (types_extract_as_integer(&exp1) & types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_XOR: |
| exp->un.binop.result = (types_extract_as_integer(&exp1) ^ types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_EQ: |
| exp->un.binop.result = (types_extract_as_integer(&exp1) == types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_GT: |
| exp->un.binop.result = (types_extract_as_integer(&exp1) > types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_LT: |
| exp->un.binop.result = (types_extract_as_integer(&exp1) < types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_GE: |
| exp->un.binop.result = (types_extract_as_integer(&exp1) >= types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_LE: |
| exp->un.binop.result = (types_extract_as_integer(&exp1) <= types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_NE: |
| exp->un.binop.result = (types_extract_as_integer(&exp1) != types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_SHL: |
| exp->un.binop.result = ((unsigned long)types_extract_as_integer(&exp1) << types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_SHR: |
| exp->un.binop.result = ((unsigned long)types_extract_as_integer(&exp1) >> types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_MUL: |
| exp->un.binop.result = (types_extract_as_integer(&exp1) * types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_DIV: |
| if (types_extract_as_integer(&exp2) == 0) RaiseException(DEBUG_STATUS_DIV_BY_ZERO, 0, 0, NULL); |
| exp->un.binop.result = (types_extract_as_integer(&exp1) / types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_REM: |
| if (types_extract_as_integer(&exp2) == 0) RaiseException(DEBUG_STATUS_DIV_BY_ZERO, 0, 0, NULL); |
| exp->un.binop.result = (types_extract_as_integer(&exp1) % types_extract_as_integer(&exp2)); |
| break; |
| case EXP_OP_ARR: |
| if (!types_array_index(&exp1, types_extract_as_integer(&exp2), &rtn)) |
| RaiseException(DEBUG_STATUS_CANT_DEREF, 0, 0, NULL); |
| break; |
| default: RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL); |
| } |
| break; |
| case EXPR_TYPE_UNOP: |
| rtn.cookie = DLV_HOST; |
| exp1 = expr_eval(exp->un.unop.exp1); |
| if (exp1.type.id == dbg_itype_none) RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| rtn.addr.Offset = (ULONG_PTR)&exp->un.unop.result; |
| rtn.type.id = dbg_itype_signed_int; |
| rtn.type.module = 0; |
| switch (exp->un.unop.unop_type) |
| { |
| case EXP_OP_NEG: |
| exp->un.unop.result = -types_extract_as_integer(&exp1); |
| break; |
| case EXP_OP_NOT: |
| exp->un.unop.result = !types_extract_as_integer(&exp1); |
| break; |
| case EXP_OP_LNOT: |
| exp->un.unop.result = ~types_extract_as_integer(&exp1); |
| break; |
| case EXP_OP_DEREF: |
| if (!types_deref(&exp1, &rtn)) |
| RaiseException(DEBUG_STATUS_BAD_TYPE, 0, 0, NULL); |
| break; |
| case EXP_OP_FORCE_DEREF: |
| rtn = exp1; |
| if (exp1.cookie == DLV_TARGET) |
| dbg_read_memory(memory_to_linear_addr(&exp1.addr), &rtn.addr.Offset, sizeof(rtn.addr.Offset)); |
| break; |
| case EXP_OP_ADDR: |
| /* only do it on linear addresses */ |
| if (exp1.addr.Mode != AddrModeFlat) |
| RaiseException(DEBUG_STATUS_CANT_DEREF, 0, 0, NULL); |
| exp->un.unop.result = (ULONG_PTR)memory_to_linear_addr(&exp1.addr); |
| rtn.type = types_find_pointer(&exp1.type); |
| if (rtn.type.id == dbg_itype_none) |
| RaiseException(DEBUG_STATUS_CANT_DEREF, 0, 0, NULL); |
| break; |
| default: RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL); |
| } |
| break; |
| default: |
| WINE_FIXME("Unexpected expression (%d).\n", exp->type); |
| RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL); |
| break; |
| } |
| |
| return rtn; |
| } |
| |
| int expr_print(const struct expr* exp) |
| { |
| int i; |
| struct dbg_type type; |
| |
| switch (exp->type) |
| { |
| case EXPR_TYPE_CAST: |
| WINE_FIXME("No longer supported (missing module base)\n"); |
| dbg_printf("(("); |
| switch (exp->un.cast.cast_to.type) |
| { |
| case type_expr_type_id: |
| type.module = 0; |
| type.id = exp->un.cast.cast_to.type; |
| types_print_type(&type, FALSE); break; |
| case type_expr_udt_class: |
| dbg_printf("class %s", exp->un.cast.cast_to.u.name); break; |
| case type_expr_udt_struct: |
| dbg_printf("struct %s", exp->un.cast.cast_to.u.name); break; |
| case type_expr_udt_union: |
| dbg_printf("union %s", exp->un.cast.cast_to.u.name); break; |
| case type_expr_enumeration: |
| dbg_printf("enum %s", exp->un.cast.cast_to.u.name); break; |
| } |
| for (i = 0; i < exp->un.cast.cast_to.deref_count; i++) |
| dbg_printf("*"); |
| dbg_printf(")"); |
| expr_print(exp->un.cast.expr); |
| dbg_printf(")"); |
| break; |
| case EXPR_TYPE_INTVAR: |
| dbg_printf("$%s", exp->un.intvar.name); |
| break; |
| case EXPR_TYPE_U_CONST: |
| dbg_printf("%u", exp->un.u_const.value); |
| break; |
| case EXPR_TYPE_S_CONST: |
| dbg_printf("%d", exp->un.s_const.value); |
| break; |
| case EXPR_TYPE_STRING: |
| dbg_printf("\"%s\"", exp->un.string.str); |
| break; |
| case EXPR_TYPE_SYMBOL: |
| dbg_printf("%s" , exp->un.symbol.name); |
| break; |
| case EXPR_TYPE_PSTRUCT: |
| expr_print(exp->un.structure.exp1); |
| dbg_printf("->%s", exp->un.structure.element_name); |
| break; |
| case EXPR_TYPE_STRUCT: |
| expr_print(exp->un.structure.exp1); |
| dbg_printf(".%s", exp->un.structure.element_name); |
| break; |
| case EXPR_TYPE_CALL: |
| dbg_printf("%s(",exp->un.call.funcname); |
| for (i = 0; i < exp->un.call.nargs; i++) |
| { |
| expr_print(exp->un.call.arg[i]); |
| if (i != exp->un.call.nargs - 1) dbg_printf(", "); |
| } |
| dbg_printf(")"); |
| break; |
| case EXPR_TYPE_BINOP: |
| dbg_printf("("); |
| expr_print(exp->un.binop.exp1); |
| switch (exp->un.binop.binop_type) |
| { |
| case EXP_OP_ADD: dbg_printf(" + "); break; |
| case EXP_OP_SUB: dbg_printf(" - "); break; |
| case EXP_OP_SEG: dbg_printf(":"); break; |
| case EXP_OP_LOR: dbg_printf(" || "); break; |
| case EXP_OP_LAND: dbg_printf(" && "); break; |
| case EXP_OP_OR: dbg_printf(" | "); break; |
| case EXP_OP_AND: dbg_printf(" & "); break; |
| case EXP_OP_XOR: dbg_printf(" ^ "); break; |
| case EXP_OP_EQ: dbg_printf(" == "); break; |
| case EXP_OP_GT: dbg_printf(" > "); break; |
| case EXP_OP_LT: dbg_printf(" < "); break; |
| case EXP_OP_GE: dbg_printf(" >= "); break; |
| case EXP_OP_LE: dbg_printf(" <= "); break; |
| case EXP_OP_NE: dbg_printf(" != "); break; |
| case EXP_OP_SHL: dbg_printf(" << "); break; |
| case EXP_OP_SHR: dbg_printf(" >> "); break; |
| case EXP_OP_MUL: dbg_printf(" * "); break; |
| case EXP_OP_DIV: dbg_printf(" / "); break; |
| case EXP_OP_REM: dbg_printf(" %% "); break; |
| case EXP_OP_ARR: dbg_printf("["); break; |
| default: break; |
| } |
| expr_print(exp->un.binop.exp2); |
| if (exp->un.binop.binop_type == EXP_OP_ARR) dbg_printf("]"); |
| dbg_printf(")"); |
| break; |
| case EXPR_TYPE_UNOP: |
| switch (exp->un.unop.unop_type) |
| { |
| case EXP_OP_NEG: dbg_printf("-"); break; |
| case EXP_OP_NOT: dbg_printf("!"); break; |
| case EXP_OP_LNOT: dbg_printf("~"); break; |
| case EXP_OP_DEREF: dbg_printf("*"); break; |
| case EXP_OP_ADDR: dbg_printf("&"); break; |
| } |
| expr_print(exp->un.unop.exp1); |
| break; |
| default: |
| WINE_FIXME("Unexpected expression (%u).\n", exp->type); |
| RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL); |
| break; |
| } |
| |
| return TRUE; |
| } |
| |
| struct expr* expr_clone(const struct expr* exp, BOOL *local_binding) |
| { |
| int i; |
| struct expr* rtn; |
| |
| rtn = HeapAlloc(GetProcessHeap(), 0, sizeof(struct expr)); |
| |
| /* |
| * First copy the contents of the expression itself. |
| */ |
| *rtn = *exp; |
| |
| switch (exp->type) |
| { |
| case EXPR_TYPE_CAST: |
| rtn->un.cast.expr = expr_clone(exp->un.cast.expr, local_binding); |
| break; |
| case EXPR_TYPE_INTVAR: |
| rtn->un.intvar.name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.intvar.name) + 1), exp->un.intvar.name); |
| break; |
| case EXPR_TYPE_U_CONST: |
| case EXPR_TYPE_S_CONST: |
| break; |
| case EXPR_TYPE_STRING: |
| rtn->un.string.str = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.string.str) + 1), exp->un.string.str); |
| break; |
| case EXPR_TYPE_SYMBOL: |
| rtn->un.symbol.name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.symbol.name) + 1), exp->un.symbol.name); |
| if (local_binding && symbol_is_local(exp->un.symbol.name)) |
| *local_binding = TRUE; |
| break; |
| case EXPR_TYPE_PSTRUCT: |
| case EXPR_TYPE_STRUCT: |
| rtn->un.structure.exp1 = expr_clone(exp->un.structure.exp1, local_binding); |
| rtn->un.structure.element_name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.structure.element_name) + 1), exp->un.structure.element_name); |
| break; |
| case EXPR_TYPE_CALL: |
| for (i = 0; i < exp->un.call.nargs; i++) |
| { |
| rtn->un.call.arg[i] = expr_clone(exp->un.call.arg[i], local_binding); |
| } |
| rtn->un.call.funcname = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(exp->un.call.funcname) + 1), exp->un.call.funcname); |
| break; |
| case EXPR_TYPE_BINOP: |
| rtn->un.binop.exp1 = expr_clone(exp->un.binop.exp1, local_binding); |
| rtn->un.binop.exp2 = expr_clone(exp->un.binop.exp2, local_binding); |
| break; |
| case EXPR_TYPE_UNOP: |
| rtn->un.unop.exp1 = expr_clone(exp->un.unop.exp1, local_binding); |
| break; |
| default: |
| WINE_FIXME("Unexpected expression (%u).\n", exp->type); |
| RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL); |
| break; |
| } |
| |
| return rtn; |
| } |
| |
| |
| /* |
| * Recursively go through an expression tree and free all memory associated |
| * with it. |
| */ |
| int expr_free(struct expr* exp) |
| { |
| int i; |
| |
| switch (exp->type) |
| { |
| case EXPR_TYPE_CAST: |
| expr_free(exp->un.cast.expr); |
| break; |
| case EXPR_TYPE_INTVAR: |
| HeapFree(GetProcessHeap(), 0, (char*)exp->un.intvar.name); |
| break; |
| case EXPR_TYPE_U_CONST: |
| case EXPR_TYPE_S_CONST: |
| break; |
| case EXPR_TYPE_STRING: |
| HeapFree(GetProcessHeap(), 0, (char*)exp->un.string.str); |
| break; |
| case EXPR_TYPE_SYMBOL: |
| HeapFree(GetProcessHeap(), 0, (char*)exp->un.symbol.name); |
| break; |
| case EXPR_TYPE_PSTRUCT: |
| case EXPR_TYPE_STRUCT: |
| expr_free(exp->un.structure.exp1); |
| HeapFree(GetProcessHeap(), 0, (char*)exp->un.structure.element_name); |
| break; |
| case EXPR_TYPE_CALL: |
| for (i = 0; i < exp->un.call.nargs; i++) |
| { |
| expr_free(exp->un.call.arg[i]); |
| } |
| HeapFree(GetProcessHeap(), 0, (char*)exp->un.call.funcname); |
| break; |
| case EXPR_TYPE_BINOP: |
| expr_free(exp->un.binop.exp1); |
| expr_free(exp->un.binop.exp2); |
| break; |
| case EXPR_TYPE_UNOP: |
| expr_free(exp->un.unop.exp1); |
| break; |
| default: |
| WINE_FIXME("Unexpected expression (%u).\n", exp->type); |
| RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL); |
| break; |
| } |
| |
| HeapFree(GetProcessHeap(), 0, exp); |
| return TRUE; |
| } |
