2 * Copyright 2011 Jacek Caban for CodeWeavers
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #include "parser.tab.h"
25 #include "wine/debug.h"
27 WINE_DEFAULT_DEBUG_CHANNEL(vbscript);
28 WINE_DECLARE_DEBUG_CHANNEL(vbscript_disas);
41 unsigned while_end_label;
42 unsigned sub_end_label;
43 unsigned func_end_label;
44 unsigned prop_end_label;
46 dim_decl_t *dim_decls;
47 dynamic_var_t *global_vars;
49 const_decl_t *const_decls;
50 const_decl_t *global_consts;
54 function_decl_t *func_decls;
56 class_desc_t *classes;
59 static HRESULT compile_expression(compile_ctx_t*,expression_t*);
60 static HRESULT compile_statement(compile_ctx_t*,statement_t*);
64 instr_arg_type_t arg1_type;
65 instr_arg_type_t arg2_type;
67 #define X(n,a,b,c) {#n,b,c},
72 static void dump_instr_arg(instr_arg_type_t type, instr_arg_t *arg)
77 TRACE_(vbscript_disas)("\t%s", debugstr_w(arg->str));
80 TRACE_(vbscript_disas)("\t%d", arg->uint);
84 TRACE_(vbscript_disas)("\t%u", arg->uint);
87 TRACE_(vbscript_disas)("\t%lf", *arg->dbl);
96 static void dump_code(compile_ctx_t *ctx)
100 for(instr = ctx->code->instrs; instr < ctx->code->instrs+ctx->instr_cnt; instr++) {
101 TRACE_(vbscript_disas)("%d:\t%s", (int)(instr-ctx->code->instrs), instr_info[instr->op].op_str);
102 dump_instr_arg(instr_info[instr->op].arg1_type, &instr->arg1);
103 dump_instr_arg(instr_info[instr->op].arg2_type, &instr->arg2);
104 TRACE_(vbscript_disas)("\n");
108 static inline void *compiler_alloc(vbscode_t *vbscode, size_t size)
110 return vbsheap_alloc(&vbscode->heap, size);
113 static inline void *compiler_alloc_zero(vbscode_t *vbscode, size_t size)
117 ret = vbsheap_alloc(&vbscode->heap, size);
119 memset(ret, 0, size);
123 static WCHAR *compiler_alloc_string(vbscode_t *vbscode, const WCHAR *str)
128 size = (strlenW(str)+1)*sizeof(WCHAR);
129 ret = compiler_alloc(vbscode, size);
131 memcpy(ret, str, size);
135 static inline instr_t *instr_ptr(compile_ctx_t *ctx, unsigned id)
137 assert(id < ctx->instr_cnt);
138 return ctx->code->instrs + id;
141 static unsigned push_instr(compile_ctx_t *ctx, vbsop_t op)
143 assert(ctx->instr_size && ctx->instr_size >= ctx->instr_cnt);
145 if(ctx->instr_size == ctx->instr_cnt) {
148 new_instr = heap_realloc(ctx->code->instrs, ctx->instr_size*2*sizeof(instr_t));
152 ctx->code->instrs = new_instr;
153 ctx->instr_size *= 2;
156 ctx->code->instrs[ctx->instr_cnt].op = op;
157 return ctx->instr_cnt++;
160 static HRESULT push_instr_int(compile_ctx_t *ctx, vbsop_t op, LONG arg)
164 ret = push_instr(ctx, op);
166 return E_OUTOFMEMORY;
168 instr_ptr(ctx, ret)->arg1.lng = arg;
172 static HRESULT push_instr_uint(compile_ctx_t *ctx, vbsop_t op, unsigned arg)
176 ret = push_instr(ctx, op);
178 return E_OUTOFMEMORY;
180 instr_ptr(ctx, ret)->arg1.uint = arg;
184 static HRESULT push_instr_addr(compile_ctx_t *ctx, vbsop_t op, unsigned arg)
188 ret = push_instr(ctx, op);
190 return E_OUTOFMEMORY;
192 instr_ptr(ctx, ret)->arg1.uint = arg;
196 static HRESULT push_instr_str(compile_ctx_t *ctx, vbsop_t op, const WCHAR *arg)
201 str = compiler_alloc_string(ctx->code, arg);
203 return E_OUTOFMEMORY;
205 instr = push_instr(ctx, op);
207 return E_OUTOFMEMORY;
209 instr_ptr(ctx, instr)->arg1.str = str;
213 static HRESULT push_instr_double(compile_ctx_t *ctx, vbsop_t op, double arg)
218 d = compiler_alloc(ctx->code, sizeof(double));
220 return E_OUTOFMEMORY;
222 instr = push_instr(ctx, op);
224 return E_OUTOFMEMORY;
227 instr_ptr(ctx, instr)->arg1.dbl = d;
231 static BSTR alloc_bstr_arg(compile_ctx_t *ctx, const WCHAR *str)
233 if(!ctx->code->bstr_pool_size) {
234 ctx->code->bstr_pool = heap_alloc(8 * sizeof(BSTR));
235 if(!ctx->code->bstr_pool)
237 ctx->code->bstr_pool_size = 8;
238 }else if(ctx->code->bstr_pool_size == ctx->code->bstr_cnt) {
241 new_pool = heap_realloc(ctx->code->bstr_pool, ctx->code->bstr_pool_size*2*sizeof(BSTR));
245 ctx->code->bstr_pool = new_pool;
246 ctx->code->bstr_pool_size *= 2;
249 ctx->code->bstr_pool[ctx->code->bstr_cnt] = SysAllocString(str);
250 if(!ctx->code->bstr_pool[ctx->code->bstr_cnt])
253 return ctx->code->bstr_pool[ctx->code->bstr_cnt++];
256 static HRESULT push_instr_bstr(compile_ctx_t *ctx, vbsop_t op, const WCHAR *arg)
261 bstr = alloc_bstr_arg(ctx, arg);
263 return E_OUTOFMEMORY;
265 instr = push_instr(ctx, op);
267 return E_OUTOFMEMORY;
269 instr_ptr(ctx, instr)->arg1.bstr = bstr;
273 static HRESULT push_instr_bstr_uint(compile_ctx_t *ctx, vbsop_t op, const WCHAR *arg1, unsigned arg2)
278 bstr = alloc_bstr_arg(ctx, arg1);
280 return E_OUTOFMEMORY;
282 instr = push_instr(ctx, op);
284 return E_OUTOFMEMORY;
286 instr_ptr(ctx, instr)->arg1.bstr = bstr;
287 instr_ptr(ctx, instr)->arg2.uint = arg2;
291 #define LABEL_FLAG 0x80000000
293 static unsigned alloc_label(compile_ctx_t *ctx)
295 if(!ctx->labels_size) {
296 ctx->labels = heap_alloc(8 * sizeof(*ctx->labels));
299 ctx->labels_size = 8;
300 }else if(ctx->labels_size == ctx->labels_cnt) {
301 unsigned *new_labels;
303 new_labels = heap_realloc(ctx->labels, 2*ctx->labels_size*sizeof(*ctx->labels));
307 ctx->labels = new_labels;
308 ctx->labels_size *= 2;
311 return ctx->labels_cnt++ | LABEL_FLAG;
314 static inline void label_set_addr(compile_ctx_t *ctx, unsigned label)
316 assert(label & LABEL_FLAG);
317 ctx->labels[label & ~LABEL_FLAG] = ctx->instr_cnt;
320 static expression_t *lookup_const_decls(compile_ctx_t *ctx, const WCHAR *name, BOOL lookup_global)
324 for(decl = ctx->const_decls; decl; decl = decl->next) {
325 if(!strcmpiW(decl->name, name))
326 return decl->value_expr;
332 for(decl = ctx->global_consts; decl; decl = decl->next) {
333 if(!strcmpiW(decl->name, name))
334 return decl->value_expr;
340 static HRESULT compile_args(compile_ctx_t *ctx, expression_t *args, unsigned *ret)
342 unsigned arg_cnt = 0;
346 hres = compile_expression(ctx, args);
358 static HRESULT compile_member_expression(compile_ctx_t *ctx, member_expression_t *expr, BOOL ret_val)
360 unsigned arg_cnt = 0;
363 if(ret_val && !expr->args) {
364 expression_t *const_expr;
366 const_expr = lookup_const_decls(ctx, expr->identifier, TRUE);
368 return compile_expression(ctx, const_expr);
371 hres = compile_args(ctx, expr->args, &arg_cnt);
376 hres = compile_expression(ctx, expr->obj_expr);
380 hres = push_instr_bstr_uint(ctx, ret_val ? OP_mcall : OP_mcallv, expr->identifier, arg_cnt);
382 hres = push_instr_bstr_uint(ctx, ret_val ? OP_icall : OP_icallv, expr->identifier, arg_cnt);
388 static HRESULT compile_unary_expression(compile_ctx_t *ctx, unary_expression_t *expr, vbsop_t op)
392 hres = compile_expression(ctx, expr->subexpr);
396 return push_instr(ctx, op) == -1 ? E_OUTOFMEMORY : S_OK;
399 static HRESULT compile_binary_expression(compile_ctx_t *ctx, binary_expression_t *expr, vbsop_t op)
403 hres = compile_expression(ctx, expr->left);
407 hres = compile_expression(ctx, expr->right);
411 return push_instr(ctx, op) == -1 ? E_OUTOFMEMORY : S_OK;
414 static HRESULT compile_expression(compile_ctx_t *ctx, expression_t *expr)
418 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_add);
420 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_and);
422 return push_instr_int(ctx, OP_bool, ((bool_expression_t*)expr)->value);
424 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_concat);
426 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_div);
428 return push_instr_double(ctx, OP_double, ((double_expression_t*)expr)->value);
430 return push_instr(ctx, OP_empty) != -1 ? S_OK : E_OUTOFMEMORY;
432 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_equal);
434 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_eqv);
436 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_exp);
438 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_gt);
440 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_gteq);
442 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_idiv);
444 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_is);
446 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_imp);
448 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_lt);
450 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_lteq);
452 return push_instr(ctx, OP_me) != -1 ? S_OK : E_OUTOFMEMORY;
454 return compile_member_expression(ctx, (member_expression_t*)expr, TRUE);
456 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_mod);
458 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_mul);
460 return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_neg);
462 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_nequal);
464 return push_instr_str(ctx, OP_new, ((string_expression_t*)expr)->value);
466 return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_not);
468 return push_instr(ctx, OP_nothing) != -1 ? S_OK : E_OUTOFMEMORY;
470 return push_instr(ctx, OP_null) != -1 ? S_OK : E_OUTOFMEMORY;
472 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_or);
474 return push_instr_str(ctx, OP_string, ((string_expression_t*)expr)->value);
476 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_sub);
478 return push_instr_int(ctx, OP_short, ((int_expression_t*)expr)->value);
480 return push_instr_int(ctx, OP_long, ((int_expression_t*)expr)->value);
482 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_xor);
484 FIXME("Unimplemented expression type %d\n", expr->type);
491 static HRESULT compile_if_statement(compile_ctx_t *ctx, if_statement_t *stat)
493 unsigned cnd_jmp, endif_label = -1;
494 elseif_decl_t *elseif_decl;
497 hres = compile_expression(ctx, stat->expr);
501 cnd_jmp = push_instr(ctx, OP_jmp_false);
503 return E_OUTOFMEMORY;
505 hres = compile_statement(ctx, stat->if_stat);
509 if(stat->else_stat || stat->elseifs) {
510 endif_label = alloc_label(ctx);
511 if(endif_label == -1)
512 return E_OUTOFMEMORY;
514 hres = push_instr_addr(ctx, OP_jmp, endif_label);
519 for(elseif_decl = stat->elseifs; elseif_decl; elseif_decl = elseif_decl->next) {
520 instr_ptr(ctx, cnd_jmp)->arg1.uint = ctx->instr_cnt;
522 hres = compile_expression(ctx, elseif_decl->expr);
526 cnd_jmp = push_instr(ctx, OP_jmp_false);
528 return E_OUTOFMEMORY;
530 hres = compile_statement(ctx, elseif_decl->stat);
534 hres = push_instr_addr(ctx, OP_jmp, endif_label);
539 instr_ptr(ctx, cnd_jmp)->arg1.uint = ctx->instr_cnt;
541 if(stat->else_stat) {
542 hres = compile_statement(ctx, stat->else_stat);
547 if(endif_label != -1)
548 label_set_addr(ctx, endif_label);
552 static HRESULT compile_while_statement(compile_ctx_t *ctx, while_statement_t *stat)
554 unsigned start_addr, prev_label;
558 start_addr = ctx->instr_cnt;
560 hres = compile_expression(ctx, stat->expr);
564 jmp_end = push_instr(ctx, stat->stat.type == STAT_UNTIL ? OP_jmp_true : OP_jmp_false);
566 return E_OUTOFMEMORY;
568 prev_label = ctx->while_end_label;
569 if(stat->stat.type != STAT_WHILE && (ctx->while_end_label = alloc_label(ctx)) == -1)
570 return E_OUTOFMEMORY;
572 hres = compile_statement(ctx, stat->body);
576 hres = push_instr_addr(ctx, OP_jmp, start_addr);
580 instr_ptr(ctx, jmp_end)->arg1.uint = ctx->instr_cnt;
582 if(stat->stat.type != STAT_WHILE) {
583 label_set_addr(ctx, ctx->while_end_label);
584 ctx->while_end_label = prev_label;
590 static HRESULT compile_dowhile_statement(compile_ctx_t *ctx, while_statement_t *stat)
592 unsigned start_addr, prev_label;
595 start_addr = ctx->instr_cnt;
597 prev_label = ctx->while_end_label;
598 if((ctx->while_end_label = alloc_label(ctx)) == -1)
599 return E_OUTOFMEMORY;
601 hres = compile_statement(ctx, stat->body);
605 hres = compile_expression(ctx, stat->expr);
609 hres = push_instr_addr(ctx, stat->stat.type == STAT_DOUNTIL ? OP_jmp_false : OP_jmp_true, start_addr);
613 label_set_addr(ctx, ctx->while_end_label);
614 ctx->while_end_label = prev_label;
618 static HRESULT compile_forto_statement(compile_ctx_t *ctx, forto_statement_t *stat)
620 unsigned step_instr, instr;
624 identifier = alloc_bstr_arg(ctx, stat->identifier);
626 return E_OUTOFMEMORY;
628 hres = compile_expression(ctx, stat->from_expr);
632 instr = push_instr(ctx, OP_assign_ident);
634 return E_OUTOFMEMORY;
635 instr_ptr(ctx, instr)->arg1.bstr = identifier;
637 hres = compile_expression(ctx, stat->to_expr);
641 if(push_instr(ctx, OP_val) == -1)
642 return E_OUTOFMEMORY;
644 if(stat->step_expr) {
645 hres = compile_expression(ctx, stat->step_expr);
649 if(push_instr(ctx, OP_val) == -1)
650 return E_OUTOFMEMORY;
652 hres = push_instr_int(ctx, OP_short, 1);
657 step_instr = push_instr(ctx, OP_step);
659 return E_OUTOFMEMORY;
660 instr_ptr(ctx, step_instr)->arg2.bstr = identifier;
662 hres = compile_statement(ctx, stat->body);
666 instr = push_instr(ctx, OP_incc);
668 return E_OUTOFMEMORY;
669 instr_ptr(ctx, instr)->arg1.bstr = identifier;
671 hres = push_instr_addr(ctx, OP_jmp, step_instr);
675 instr_ptr(ctx, step_instr)->arg1.uint = ctx->instr_cnt;
677 return push_instr_uint(ctx, OP_pop, 2);
680 static HRESULT compile_assign_statement(compile_ctx_t *ctx, assign_statement_t *stat, BOOL is_set)
684 hres = compile_expression(ctx, stat->value_expr);
688 if(stat->member_expr->args) {
689 FIXME("arguments support not implemented\n");
693 if(stat->member_expr->obj_expr) {
694 hres = compile_expression(ctx, stat->member_expr->obj_expr);
698 hres = push_instr_bstr(ctx, is_set ? OP_set_member : OP_assign_member, stat->member_expr->identifier);
700 hres = push_instr_bstr(ctx, is_set ? OP_set_ident : OP_assign_ident, stat->member_expr->identifier);
706 static BOOL lookup_dim_decls(compile_ctx_t *ctx, const WCHAR *name)
708 dim_decl_t *dim_decl;
710 for(dim_decl = ctx->dim_decls; dim_decl; dim_decl = dim_decl->next) {
711 if(!strcmpiW(dim_decl->name, name))
718 static BOOL lookup_args_name(compile_ctx_t *ctx, const WCHAR *name)
722 for(i = 0; i < ctx->func->arg_cnt; i++) {
723 if(!strcmpiW(ctx->func->args[i].name, name))
730 static HRESULT compile_dim_statement(compile_ctx_t *ctx, dim_statement_t *stat)
732 dim_decl_t *dim_decl = stat->dim_decls;
735 if(lookup_dim_decls(ctx, dim_decl->name) || lookup_args_name(ctx, dim_decl->name)
736 || lookup_const_decls(ctx, dim_decl->name, FALSE)) {
737 FIXME("dim %s name redefined\n", debugstr_w(dim_decl->name));
743 dim_decl = dim_decl->next;
746 dim_decl->next = ctx->dim_decls;
747 ctx->dim_decls = stat->dim_decls;
748 ctx->func->var_cnt++;
752 static HRESULT compile_const_statement(compile_ctx_t *ctx, const_statement_t *stat)
754 const_decl_t *decl, *next_decl = stat->decls;
759 if(lookup_const_decls(ctx, decl->name, FALSE) || lookup_args_name(ctx, decl->name)
760 || lookup_dim_decls(ctx, decl->name)) {
761 FIXME("%s redefined\n", debugstr_w(decl->name));
765 if(ctx->func->type == FUNC_GLOBAL) {
768 hres = compile_expression(ctx, decl->value_expr);
772 hres = push_instr_bstr(ctx, OP_const, decl->name);
777 next_decl = decl->next;
778 decl->next = ctx->const_decls;
779 ctx->const_decls = decl;
785 static HRESULT compile_function_statement(compile_ctx_t *ctx, function_statement_t *stat)
787 if(ctx->func != &ctx->code->global_code) {
788 FIXME("Function is not in the global code\n");
792 stat->func_decl->next = ctx->func_decls;
793 ctx->func_decls = stat->func_decl;
797 static HRESULT compile_exitdo_statement(compile_ctx_t *ctx)
799 if(ctx->while_end_label == -1) {
800 FIXME("Exit Do outside Do Loop\n");
804 return push_instr_addr(ctx, OP_jmp, ctx->while_end_label);
807 static HRESULT compile_exitsub_statement(compile_ctx_t *ctx)
809 if(ctx->sub_end_label == -1) {
810 FIXME("Exit Sub outside Sub?\n");
814 return push_instr_addr(ctx, OP_jmp, ctx->sub_end_label);
817 static HRESULT compile_exitfunc_statement(compile_ctx_t *ctx)
819 if(ctx->func_end_label == -1) {
820 FIXME("Exit Function outside Function?\n");
824 return push_instr_addr(ctx, OP_jmp, ctx->func_end_label);
827 static HRESULT compile_exitprop_statement(compile_ctx_t *ctx)
829 if(ctx->prop_end_label == -1) {
830 FIXME("Exit Property outside Property?\n");
834 return push_instr_addr(ctx, OP_jmp, ctx->prop_end_label);
837 static HRESULT compile_onerror_statement(compile_ctx_t *ctx, onerror_statement_t *stat)
839 return push_instr_int(ctx, OP_errmode, stat->resume_next);
842 static HRESULT compile_statement(compile_ctx_t *ctx, statement_t *stat)
849 hres = compile_assign_statement(ctx, (assign_statement_t*)stat, FALSE);
852 hres = compile_member_expression(ctx, ((call_statement_t*)stat)->expr, FALSE);
855 hres = compile_const_statement(ctx, (const_statement_t*)stat);
858 hres = compile_dim_statement(ctx, (dim_statement_t*)stat);
862 hres = compile_dowhile_statement(ctx, (while_statement_t*)stat);
865 hres = compile_exitdo_statement(ctx);
868 hres = compile_exitfunc_statement(ctx);
871 hres = compile_exitprop_statement(ctx);
874 hres = compile_exitsub_statement(ctx);
877 hres = compile_forto_statement(ctx, (forto_statement_t*)stat);
880 hres = compile_function_statement(ctx, (function_statement_t*)stat);
883 hres = compile_if_statement(ctx, (if_statement_t*)stat);
886 hres = compile_onerror_statement(ctx, (onerror_statement_t*)stat);
889 hres = compile_assign_statement(ctx, (assign_statement_t*)stat, TRUE);
892 hres = push_instr(ctx, OP_stop) == -1 ? E_OUTOFMEMORY : S_OK;
897 hres = compile_while_statement(ctx, (while_statement_t*)stat);
900 FIXME("Unimplemented statement type %d\n", stat->type);
912 static void resolve_labels(compile_ctx_t *ctx, unsigned off)
916 for(instr = ctx->code->instrs+off; instr < ctx->code->instrs+ctx->instr_cnt; instr++) {
917 if(instr_info[instr->op].arg1_type == ARG_ADDR && (instr->arg1.uint & LABEL_FLAG)) {
918 assert((instr->arg1.uint & ~LABEL_FLAG) < ctx->labels_cnt);
919 instr->arg1.uint = ctx->labels[instr->arg1.uint & ~LABEL_FLAG];
921 assert(instr_info[instr->op].arg2_type != ARG_ADDR);
927 static HRESULT compile_func(compile_ctx_t *ctx, statement_t *stat, function_t *func)
931 func->code_off = ctx->instr_cnt;
933 ctx->while_end_label = -1;
934 ctx->sub_end_label = -1;
935 ctx->func_end_label = -1;
936 ctx->prop_end_label = -1;
940 ctx->func_end_label = alloc_label(ctx);
941 if(ctx->func_end_label == -1)
942 return E_OUTOFMEMORY; /* FIXME ! */
945 ctx->sub_end_label = alloc_label(ctx);
946 if(ctx->sub_end_label == -1)
947 return E_OUTOFMEMORY;
953 ctx->prop_end_label = alloc_label(ctx);
954 if(ctx->prop_end_label == -1)
955 return E_OUTOFMEMORY;
962 ctx->dim_decls = NULL;
963 ctx->const_decls = NULL;
964 hres = compile_statement(ctx, stat);
969 assert(ctx->while_end_label == -1);
971 if(ctx->sub_end_label != -1)
972 label_set_addr(ctx, ctx->sub_end_label);
973 if(ctx->func_end_label != -1)
974 label_set_addr(ctx, ctx->func_end_label);
975 if(ctx->prop_end_label != -1)
976 label_set_addr(ctx, ctx->prop_end_label);
978 if(push_instr(ctx, OP_ret) == -1)
979 return E_OUTOFMEMORY;
981 resolve_labels(ctx, func->code_off);
984 dim_decl_t *dim_decl;
986 if(func->type == FUNC_GLOBAL) {
987 dynamic_var_t *new_var;
991 for(dim_decl = ctx->dim_decls; dim_decl; dim_decl = dim_decl->next) {
992 new_var = compiler_alloc(ctx->code, sizeof(*new_var));
994 return E_OUTOFMEMORY;
996 new_var->name = compiler_alloc_string(ctx->code, dim_decl->name);
998 return E_OUTOFMEMORY;
1000 V_VT(&new_var->v) = VT_EMPTY;
1001 new_var->is_const = FALSE;
1003 new_var->next = ctx->global_vars;
1004 ctx->global_vars = new_var;
1009 func->vars = compiler_alloc(ctx->code, func->var_cnt * sizeof(var_desc_t));
1011 return E_OUTOFMEMORY;
1013 for(dim_decl = ctx->dim_decls, i=0; dim_decl; dim_decl = dim_decl->next, i++) {
1014 func->vars[i].name = compiler_alloc_string(ctx->code, dim_decl->name);
1015 if(!func->vars[i].name)
1016 return E_OUTOFMEMORY;
1019 assert(i == func->var_cnt);
1026 static BOOL lookup_funcs_name(compile_ctx_t *ctx, const WCHAR *name)
1030 for(iter = ctx->funcs; iter; iter = iter->next) {
1031 if(!strcmpiW(iter->name, name))
1038 static HRESULT create_function(compile_ctx_t *ctx, function_decl_t *decl, function_t **ret)
1043 if(lookup_dim_decls(ctx, decl->name) || lookup_funcs_name(ctx, decl->name) || lookup_const_decls(ctx, decl->name, FALSE)) {
1044 FIXME("%s: redefinition\n", debugstr_w(decl->name));
1048 func = compiler_alloc(ctx->code, sizeof(*func));
1050 return E_OUTOFMEMORY;
1052 func->name = compiler_alloc_string(ctx->code, decl->name);
1054 return E_OUTOFMEMORY;
1058 func->code_ctx = ctx->code;
1059 func->type = decl->type;
1060 func->is_public = decl->is_public;
1067 for(arg = decl->args; arg; arg = arg->next)
1070 func->args = compiler_alloc(ctx->code, func->arg_cnt * sizeof(arg_desc_t));
1072 return E_OUTOFMEMORY;
1074 for(i = 0, arg = decl->args; arg; arg = arg->next, i++) {
1075 func->args[i].name = compiler_alloc_string(ctx->code, arg->name);
1076 if(!func->args[i].name)
1077 return E_OUTOFMEMORY;
1078 func->args[i].by_ref = arg->by_ref;
1084 hres = compile_func(ctx, decl->body, func);
1092 static BOOL lookup_class_name(compile_ctx_t *ctx, const WCHAR *name)
1096 for(iter = ctx->classes; iter; iter = iter->next) {
1097 if(!strcmpiW(iter->name, name))
1104 static HRESULT create_class_funcprop(compile_ctx_t *ctx, function_decl_t *func_decl, vbdisp_funcprop_desc_t *desc)
1106 vbdisp_invoke_type_t invoke_type;
1107 function_decl_t *funcprop_decl;
1110 desc->name = compiler_alloc_string(ctx->code, func_decl->name);
1112 return E_OUTOFMEMORY;
1114 for(funcprop_decl = func_decl; funcprop_decl; funcprop_decl = funcprop_decl->next_prop_func) {
1115 switch(funcprop_decl->type) {
1120 invoke_type = VBDISP_CALLGET;
1123 invoke_type = VBDISP_LET;
1126 invoke_type = VBDISP_SET;
1132 assert(!desc->entries[invoke_type]);
1134 if(funcprop_decl->is_public)
1135 desc->is_public = TRUE;
1137 hres = create_function(ctx, funcprop_decl, desc->entries+invoke_type);
1145 static BOOL lookup_class_funcs(class_desc_t *class_desc, const WCHAR *name)
1149 for(i=0; i < class_desc->func_cnt; i++) {
1150 if(class_desc->funcs[i].name && !strcmpiW(class_desc->funcs[i].name, name))
1157 static HRESULT compile_class(compile_ctx_t *ctx, class_decl_t *class_decl)
1159 function_decl_t *func_decl, *func_prop_decl;
1160 class_prop_decl_t *prop_decl;
1161 class_desc_t *class_desc;
1165 static const WCHAR class_initializeW[] = {'c','l','a','s','s','_','i','n','i','t','i','a','l','i','z','e',0};
1166 static const WCHAR class_terminateW[] = {'c','l','a','s','s','_','t','e','r','m','i','n','a','t','e',0};
1168 if(lookup_dim_decls(ctx, class_decl->name) || lookup_funcs_name(ctx, class_decl->name)
1169 || lookup_const_decls(ctx, class_decl->name, FALSE) || lookup_class_name(ctx, class_decl->name)) {
1170 FIXME("%s: redefinition\n", debugstr_w(class_decl->name));
1174 class_desc = compiler_alloc_zero(ctx->code, sizeof(*class_desc));
1176 return E_OUTOFMEMORY;
1178 class_desc->name = compiler_alloc_string(ctx->code, class_decl->name);
1179 if(!class_desc->name)
1180 return E_OUTOFMEMORY;
1182 class_desc->func_cnt = 1; /* always allocate slot for default getter */
1184 for(func_decl = class_decl->funcs; func_decl; func_decl = func_decl->next) {
1185 for(func_prop_decl = func_decl; func_prop_decl; func_prop_decl = func_prop_decl->next_prop_func) {
1186 if(func_prop_decl->type == FUNC_DEFGET)
1190 class_desc->func_cnt++;
1193 class_desc->funcs = compiler_alloc(ctx->code, class_desc->func_cnt*sizeof(*class_desc->funcs));
1194 if(!class_desc->funcs)
1195 return E_OUTOFMEMORY;
1196 memset(class_desc->funcs, 0, class_desc->func_cnt*sizeof(*class_desc->funcs));
1198 for(func_decl = class_decl->funcs, i=1; func_decl; func_decl = func_decl->next, i++) {
1199 for(func_prop_decl = func_decl; func_prop_decl; func_prop_decl = func_prop_decl->next_prop_func) {
1200 if(func_prop_decl->type == FUNC_DEFGET) {
1206 if(!strcmpiW(class_initializeW, func_decl->name)) {
1207 if(func_decl->type != FUNC_SUB) {
1208 FIXME("class initializer is not sub\n");
1212 class_desc->class_initialize_id = i;
1213 }else if(!strcmpiW(class_terminateW, func_decl->name)) {
1214 if(func_decl->type != FUNC_SUB) {
1215 FIXME("class terminator is not sub\n");
1219 class_desc->class_terminate_id = i;
1222 hres = create_class_funcprop(ctx, func_decl, class_desc->funcs + (func_prop_decl ? 0 : i));
1227 for(prop_decl = class_decl->props; prop_decl; prop_decl = prop_decl->next)
1228 class_desc->prop_cnt++;
1230 class_desc->props = compiler_alloc(ctx->code, class_desc->prop_cnt*sizeof(*class_desc->props));
1231 if(!class_desc->props)
1232 return E_OUTOFMEMORY;
1234 for(prop_decl = class_decl->props, i=0; prop_decl; prop_decl = prop_decl->next, i++) {
1235 if(lookup_class_funcs(class_desc, prop_decl->name)) {
1236 FIXME("Property %s redefined\n", debugstr_w(prop_decl->name));
1240 class_desc->props[i].name = compiler_alloc_string(ctx->code, prop_decl->name);
1241 if(!class_desc->props[i].name)
1242 return E_OUTOFMEMORY;
1244 class_desc->props[i].is_public = prop_decl->is_public;
1247 class_desc->next = ctx->classes;
1248 ctx->classes = class_desc;
1252 static BOOL lookup_script_identifier(script_ctx_t *script, const WCHAR *identifier)
1254 class_desc_t *class;
1258 for(var = script->global_vars; var; var = var->next) {
1259 if(!strcmpiW(var->name, identifier))
1263 for(func = script->global_funcs; func; func = func->next) {
1264 if(!strcmpiW(func->name, identifier))
1268 for(class = script->classes; class; class = class->next) {
1269 if(!strcmpiW(class->name, identifier))
1276 static HRESULT check_script_collisions(compile_ctx_t *ctx, script_ctx_t *script)
1278 class_desc_t *class;
1282 for(var = ctx->global_vars; var; var = var->next) {
1283 if(lookup_script_identifier(script, var->name)) {
1284 FIXME("%s: redefined\n", debugstr_w(var->name));
1289 for(func = ctx->funcs; func; func = func->next) {
1290 if(lookup_script_identifier(script, func->name)) {
1291 FIXME("%s: redefined\n", debugstr_w(func->name));
1296 for(class = ctx->classes; class; class = class->next) {
1297 if(lookup_script_identifier(script, class->name)) {
1298 FIXME("%s: redefined\n", debugstr_w(class->name));
1306 void release_vbscode(vbscode_t *code)
1310 list_remove(&code->entry);
1312 for(i=0; i < code->bstr_cnt; i++)
1313 SysFreeString(code->bstr_pool[i]);
1315 vbsheap_free(&code->heap);
1317 heap_free(code->bstr_pool);
1318 heap_free(code->source);
1319 heap_free(code->instrs);
1323 static vbscode_t *alloc_vbscode(compile_ctx_t *ctx, const WCHAR *source)
1327 ret = heap_alloc(sizeof(*ret));
1331 ret->source = heap_strdupW(source);
1337 ret->instrs = heap_alloc(32*sizeof(instr_t));
1339 release_vbscode(ret);
1344 ctx->instr_size = 32;
1345 vbsheap_init(&ret->heap);
1347 ret->option_explicit = ctx->parser.option_explicit;
1349 ret->bstr_pool = NULL;
1350 ret->bstr_pool_size = 0;
1352 ret->global_executed = FALSE;
1354 ret->global_code.type = FUNC_GLOBAL;
1355 ret->global_code.name = NULL;
1356 ret->global_code.code_ctx = ret;
1357 ret->global_code.vars = NULL;
1358 ret->global_code.var_cnt = 0;
1359 ret->global_code.arg_cnt = 0;
1360 ret->global_code.args = NULL;
1362 list_init(&ret->entry);
1366 static void release_compiler(compile_ctx_t *ctx)
1368 parser_release(&ctx->parser);
1369 heap_free(ctx->labels);
1371 release_vbscode(ctx->code);
1374 HRESULT compile_script(script_ctx_t *script, const WCHAR *src, vbscode_t **ret)
1376 function_t *new_func;
1377 function_decl_t *func_decl;
1378 class_decl_t *class_decl;
1383 hres = parse_script(&ctx.parser, src);
1387 code = ctx.code = alloc_vbscode(&ctx, src);
1389 return E_OUTOFMEMORY;
1392 ctx.func_decls = NULL;
1393 ctx.global_vars = NULL;
1394 ctx.dim_decls = NULL;
1397 ctx.global_consts = NULL;
1398 ctx.labels_cnt = ctx.labels_size = 0;
1400 hres = compile_func(&ctx, ctx.parser.stats, &ctx.code->global_code);
1402 release_compiler(&ctx);
1406 ctx.global_consts = ctx.const_decls;
1408 for(func_decl = ctx.func_decls; func_decl; func_decl = func_decl->next) {
1409 hres = create_function(&ctx, func_decl, &new_func);
1411 release_compiler(&ctx);
1415 new_func->next = ctx.funcs;
1416 ctx.funcs = new_func;
1419 for(class_decl = ctx.parser.class_decls; class_decl; class_decl = class_decl->next) {
1420 hres = compile_class(&ctx, class_decl);
1422 release_compiler(&ctx);
1427 hres = check_script_collisions(&ctx, script);
1429 release_compiler(&ctx);
1433 if(ctx.global_vars) {
1436 for(var = ctx.global_vars; var->next; var = var->next);
1438 var->next = script->global_vars;
1439 script->global_vars = ctx.global_vars;
1443 for(new_func = ctx.funcs; new_func->next; new_func = new_func->next);
1445 new_func->next = script->global_funcs;
1446 script->global_funcs = ctx.funcs;
1450 class_desc_t *class = ctx.classes;
1453 class->ctx = script;
1456 class = class->next;
1459 class->next = script->classes;
1460 script->classes = ctx.classes;
1463 if(TRACE_ON(vbscript_disas))
1467 release_compiler(&ctx);
1469 list_add_tail(&script->code_list, &code->entry);