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
);
30 typedef struct _statement_ctx_t
{
33 unsigned while_end_label
;
34 unsigned for_end_label
;
36 struct _statement_ctx_t
*next
;
46 statement_ctx_t
*stat_ctx
;
52 unsigned sub_end_label
;
53 unsigned func_end_label
;
54 unsigned prop_end_label
;
56 dim_decl_t
*dim_decls
;
57 dynamic_var_t
*global_vars
;
59 const_decl_t
*const_decls
;
60 const_decl_t
*global_consts
;
64 function_decl_t
*func_decls
;
66 class_desc_t
*classes
;
69 static HRESULT
compile_expression(compile_ctx_t
*,expression_t
*);
70 static HRESULT
compile_statement(compile_ctx_t
*,statement_ctx_t
*,statement_t
*);
74 instr_arg_type_t arg1_type
;
75 instr_arg_type_t arg2_type
;
77 #define X(n,a,b,c) {#n,b,c},
82 static void dump_instr_arg(instr_arg_type_t type
, instr_arg_t
*arg
)
87 TRACE_(vbscript_disas
)("\t%s", debugstr_w(arg
->str
));
90 TRACE_(vbscript_disas
)("\t%d", arg
->uint
);
94 TRACE_(vbscript_disas
)("\t%u", arg
->uint
);
97 TRACE_(vbscript_disas
)("\t%lf", *arg
->dbl
);
106 static void dump_code(compile_ctx_t
*ctx
)
110 for(instr
= ctx
->code
->instrs
+1; instr
< ctx
->code
->instrs
+ctx
->instr_cnt
; instr
++) {
111 assert(instr
->op
< OP_LAST
);
112 TRACE_(vbscript_disas
)("%d:\t%s", (int)(instr
-ctx
->code
->instrs
), instr_info
[instr
->op
].op_str
);
113 dump_instr_arg(instr_info
[instr
->op
].arg1_type
, &instr
->arg1
);
114 dump_instr_arg(instr_info
[instr
->op
].arg2_type
, &instr
->arg2
);
115 TRACE_(vbscript_disas
)("\n");
119 static inline void *compiler_alloc(vbscode_t
*vbscode
, size_t size
)
121 return vbsheap_alloc(&vbscode
->heap
, size
);
124 static inline void *compiler_alloc_zero(vbscode_t
*vbscode
, size_t size
)
128 ret
= vbsheap_alloc(&vbscode
->heap
, size
);
130 memset(ret
, 0, size
);
134 static WCHAR
*compiler_alloc_string(vbscode_t
*vbscode
, const WCHAR
*str
)
139 size
= (strlenW(str
)+1)*sizeof(WCHAR
);
140 ret
= compiler_alloc(vbscode
, size
);
142 memcpy(ret
, str
, size
);
146 static inline instr_t
*instr_ptr(compile_ctx_t
*ctx
, unsigned id
)
148 assert(id
< ctx
->instr_cnt
);
149 return ctx
->code
->instrs
+ id
;
152 static unsigned push_instr(compile_ctx_t
*ctx
, vbsop_t op
)
154 assert(ctx
->instr_size
&& ctx
->instr_size
>= ctx
->instr_cnt
);
156 if(ctx
->instr_size
== ctx
->instr_cnt
) {
159 new_instr
= heap_realloc(ctx
->code
->instrs
, ctx
->instr_size
*2*sizeof(instr_t
));
163 ctx
->code
->instrs
= new_instr
;
164 ctx
->instr_size
*= 2;
167 ctx
->code
->instrs
[ctx
->instr_cnt
].op
= op
;
168 return ctx
->instr_cnt
++;
171 static HRESULT
push_instr_int(compile_ctx_t
*ctx
, vbsop_t op
, LONG arg
)
175 ret
= push_instr(ctx
, op
);
177 return E_OUTOFMEMORY
;
179 instr_ptr(ctx
, ret
)->arg1
.lng
= arg
;
183 static HRESULT
push_instr_uint(compile_ctx_t
*ctx
, vbsop_t op
, unsigned arg
)
187 ret
= push_instr(ctx
, op
);
189 return E_OUTOFMEMORY
;
191 instr_ptr(ctx
, ret
)->arg1
.uint
= arg
;
195 static HRESULT
push_instr_addr(compile_ctx_t
*ctx
, vbsop_t op
, unsigned arg
)
199 ret
= push_instr(ctx
, op
);
201 return E_OUTOFMEMORY
;
203 instr_ptr(ctx
, ret
)->arg1
.uint
= arg
;
207 static HRESULT
push_instr_str(compile_ctx_t
*ctx
, vbsop_t op
, const WCHAR
*arg
)
212 str
= compiler_alloc_string(ctx
->code
, arg
);
214 return E_OUTOFMEMORY
;
216 instr
= push_instr(ctx
, op
);
218 return E_OUTOFMEMORY
;
220 instr_ptr(ctx
, instr
)->arg1
.str
= str
;
224 static HRESULT
push_instr_double(compile_ctx_t
*ctx
, vbsop_t op
, double arg
)
229 d
= compiler_alloc(ctx
->code
, sizeof(double));
231 return E_OUTOFMEMORY
;
233 instr
= push_instr(ctx
, op
);
235 return E_OUTOFMEMORY
;
238 instr_ptr(ctx
, instr
)->arg1
.dbl
= d
;
242 static BSTR
alloc_bstr_arg(compile_ctx_t
*ctx
, const WCHAR
*str
)
244 if(!ctx
->code
->bstr_pool_size
) {
245 ctx
->code
->bstr_pool
= heap_alloc(8 * sizeof(BSTR
));
246 if(!ctx
->code
->bstr_pool
)
248 ctx
->code
->bstr_pool_size
= 8;
249 }else if(ctx
->code
->bstr_pool_size
== ctx
->code
->bstr_cnt
) {
252 new_pool
= heap_realloc(ctx
->code
->bstr_pool
, ctx
->code
->bstr_pool_size
*2*sizeof(BSTR
));
256 ctx
->code
->bstr_pool
= new_pool
;
257 ctx
->code
->bstr_pool_size
*= 2;
260 ctx
->code
->bstr_pool
[ctx
->code
->bstr_cnt
] = SysAllocString(str
);
261 if(!ctx
->code
->bstr_pool
[ctx
->code
->bstr_cnt
])
264 return ctx
->code
->bstr_pool
[ctx
->code
->bstr_cnt
++];
267 static HRESULT
push_instr_bstr(compile_ctx_t
*ctx
, vbsop_t op
, const WCHAR
*arg
)
272 bstr
= alloc_bstr_arg(ctx
, arg
);
274 return E_OUTOFMEMORY
;
276 instr
= push_instr(ctx
, op
);
278 return E_OUTOFMEMORY
;
280 instr_ptr(ctx
, instr
)->arg1
.bstr
= bstr
;
284 static HRESULT
push_instr_bstr_uint(compile_ctx_t
*ctx
, vbsop_t op
, const WCHAR
*arg1
, unsigned arg2
)
289 bstr
= alloc_bstr_arg(ctx
, arg1
);
291 return E_OUTOFMEMORY
;
293 instr
= push_instr(ctx
, op
);
295 return E_OUTOFMEMORY
;
297 instr_ptr(ctx
, instr
)->arg1
.bstr
= bstr
;
298 instr_ptr(ctx
, instr
)->arg2
.uint
= arg2
;
302 static HRESULT
push_instr_uint_bstr(compile_ctx_t
*ctx
, vbsop_t op
, unsigned arg1
, const WCHAR
*arg2
)
307 bstr
= alloc_bstr_arg(ctx
, arg2
);
309 return E_OUTOFMEMORY
;
311 instr
= push_instr(ctx
, op
);
313 return E_OUTOFMEMORY
;
315 instr_ptr(ctx
, instr
)->arg1
.uint
= arg1
;
316 instr_ptr(ctx
, instr
)->arg2
.bstr
= bstr
;
320 #define LABEL_FLAG 0x80000000
322 static unsigned alloc_label(compile_ctx_t
*ctx
)
324 if(!ctx
->labels_size
) {
325 ctx
->labels
= heap_alloc(8 * sizeof(*ctx
->labels
));
328 ctx
->labels_size
= 8;
329 }else if(ctx
->labels_size
== ctx
->labels_cnt
) {
330 unsigned *new_labels
;
332 new_labels
= heap_realloc(ctx
->labels
, 2*ctx
->labels_size
*sizeof(*ctx
->labels
));
336 ctx
->labels
= new_labels
;
337 ctx
->labels_size
*= 2;
340 return ctx
->labels_cnt
++ | LABEL_FLAG
;
343 static inline void label_set_addr(compile_ctx_t
*ctx
, unsigned label
)
345 assert(label
& LABEL_FLAG
);
346 ctx
->labels
[label
& ~LABEL_FLAG
] = ctx
->instr_cnt
;
349 static expression_t
*lookup_const_decls(compile_ctx_t
*ctx
, const WCHAR
*name
, BOOL lookup_global
)
353 for(decl
= ctx
->const_decls
; decl
; decl
= decl
->next
) {
354 if(!strcmpiW(decl
->name
, name
))
355 return decl
->value_expr
;
361 for(decl
= ctx
->global_consts
; decl
; decl
= decl
->next
) {
362 if(!strcmpiW(decl
->name
, name
))
363 return decl
->value_expr
;
369 static HRESULT
compile_args(compile_ctx_t
*ctx
, expression_t
*args
, unsigned *ret
)
371 unsigned arg_cnt
= 0;
375 hres
= compile_expression(ctx
, args
);
387 static HRESULT
compile_member_expression(compile_ctx_t
*ctx
, member_expression_t
*expr
, BOOL ret_val
)
389 unsigned arg_cnt
= 0;
392 if(ret_val
&& !expr
->args
) {
393 expression_t
*const_expr
;
395 const_expr
= lookup_const_decls(ctx
, expr
->identifier
, TRUE
);
397 return compile_expression(ctx
, const_expr
);
400 hres
= compile_args(ctx
, expr
->args
, &arg_cnt
);
405 hres
= compile_expression(ctx
, expr
->obj_expr
);
409 hres
= push_instr_bstr_uint(ctx
, ret_val
? OP_mcall
: OP_mcallv
, expr
->identifier
, arg_cnt
);
411 hres
= push_instr_bstr_uint(ctx
, ret_val
? OP_icall
: OP_icallv
, expr
->identifier
, arg_cnt
);
417 static HRESULT
compile_unary_expression(compile_ctx_t
*ctx
, unary_expression_t
*expr
, vbsop_t op
)
421 hres
= compile_expression(ctx
, expr
->subexpr
);
425 return push_instr(ctx
, op
) ? S_OK
: E_OUTOFMEMORY
;
428 static HRESULT
compile_binary_expression(compile_ctx_t
*ctx
, binary_expression_t
*expr
, vbsop_t op
)
432 hres
= compile_expression(ctx
, expr
->left
);
436 hres
= compile_expression(ctx
, expr
->right
);
440 return push_instr(ctx
, op
) ? S_OK
: E_OUTOFMEMORY
;
443 static HRESULT
compile_expression(compile_ctx_t
*ctx
, expression_t
*expr
)
447 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_add
);
449 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_and
);
451 return push_instr_int(ctx
, OP_bool
, ((bool_expression_t
*)expr
)->value
);
453 return compile_expression(ctx
, ((unary_expression_t
*)expr
)->subexpr
);
455 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_concat
);
457 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_div
);
459 return push_instr_double(ctx
, OP_double
, ((double_expression_t
*)expr
)->value
);
461 return push_instr(ctx
, OP_empty
) ? S_OK
: E_OUTOFMEMORY
;
463 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_equal
);
465 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_eqv
);
467 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_exp
);
469 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_gt
);
471 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_gteq
);
473 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_idiv
);
475 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_is
);
477 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_imp
);
479 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_lt
);
481 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_lteq
);
483 return push_instr(ctx
, OP_me
) ? S_OK
: E_OUTOFMEMORY
;
485 return compile_member_expression(ctx
, (member_expression_t
*)expr
, TRUE
);
487 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_mod
);
489 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_mul
);
491 return compile_unary_expression(ctx
, (unary_expression_t
*)expr
, OP_neg
);
493 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_nequal
);
495 return push_instr_str(ctx
, OP_new
, ((string_expression_t
*)expr
)->value
);
497 return compile_unary_expression(ctx
, (unary_expression_t
*)expr
, OP_not
);
499 return push_instr(ctx
, OP_nothing
) ? S_OK
: E_OUTOFMEMORY
;
501 return push_instr(ctx
, OP_null
) ? S_OK
: E_OUTOFMEMORY
;
503 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_or
);
505 return push_instr_str(ctx
, OP_string
, ((string_expression_t
*)expr
)->value
);
507 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_sub
);
509 return push_instr_int(ctx
, OP_short
, ((int_expression_t
*)expr
)->value
);
511 return push_instr_int(ctx
, OP_long
, ((int_expression_t
*)expr
)->value
);
513 return compile_binary_expression(ctx
, (binary_expression_t
*)expr
, OP_xor
);
515 FIXME("Unimplemented expression type %d\n", expr
->type
);
522 static HRESULT
compile_if_statement(compile_ctx_t
*ctx
, if_statement_t
*stat
)
524 unsigned cnd_jmp
, endif_label
= 0;
525 elseif_decl_t
*elseif_decl
;
528 hres
= compile_expression(ctx
, stat
->expr
);
532 cnd_jmp
= push_instr(ctx
, OP_jmp_false
);
534 return E_OUTOFMEMORY
;
536 hres
= compile_statement(ctx
, NULL
, stat
->if_stat
);
540 if(stat
->else_stat
|| stat
->elseifs
) {
541 endif_label
= alloc_label(ctx
);
543 return E_OUTOFMEMORY
;
545 hres
= push_instr_addr(ctx
, OP_jmp
, endif_label
);
550 for(elseif_decl
= stat
->elseifs
; elseif_decl
; elseif_decl
= elseif_decl
->next
) {
551 instr_ptr(ctx
, cnd_jmp
)->arg1
.uint
= ctx
->instr_cnt
;
553 hres
= compile_expression(ctx
, elseif_decl
->expr
);
557 cnd_jmp
= push_instr(ctx
, OP_jmp_false
);
559 return E_OUTOFMEMORY
;
561 hres
= compile_statement(ctx
, NULL
, elseif_decl
->stat
);
565 hres
= push_instr_addr(ctx
, OP_jmp
, endif_label
);
570 instr_ptr(ctx
, cnd_jmp
)->arg1
.uint
= ctx
->instr_cnt
;
572 if(stat
->else_stat
) {
573 hres
= compile_statement(ctx
, NULL
, stat
->else_stat
);
579 label_set_addr(ctx
, endif_label
);
583 static HRESULT
compile_while_statement(compile_ctx_t
*ctx
, while_statement_t
*stat
)
585 statement_ctx_t stat_ctx
= {0}, *loop_ctx
;
590 start_addr
= ctx
->instr_cnt
;
592 hres
= compile_expression(ctx
, stat
->expr
);
596 jmp_end
= push_instr(ctx
, stat
->stat
.type
== STAT_UNTIL
? OP_jmp_true
: OP_jmp_false
);
598 return E_OUTOFMEMORY
;
600 if(stat
->stat
.type
== STAT_WHILE
) {
603 if(!(stat_ctx
.while_end_label
= alloc_label(ctx
)))
604 return E_OUTOFMEMORY
;
605 loop_ctx
= &stat_ctx
;
608 hres
= compile_statement(ctx
, loop_ctx
, stat
->body
);
612 hres
= push_instr_addr(ctx
, OP_jmp
, start_addr
);
616 instr_ptr(ctx
, jmp_end
)->arg1
.uint
= ctx
->instr_cnt
;
619 label_set_addr(ctx
, stat_ctx
.while_end_label
);
624 static HRESULT
compile_dowhile_statement(compile_ctx_t
*ctx
, while_statement_t
*stat
)
626 statement_ctx_t loop_ctx
= {0};
631 start_addr
= ctx
->instr_cnt
;
633 if(!(loop_ctx
.while_end_label
= alloc_label(ctx
)))
634 return E_OUTOFMEMORY
;
636 hres
= compile_statement(ctx
, &loop_ctx
, stat
->body
);
641 hres
= compile_expression(ctx
, stat
->expr
);
645 jmp_op
= stat
->stat
.type
== STAT_DOUNTIL
? OP_jmp_false
: OP_jmp_true
;
650 hres
= push_instr_addr(ctx
, jmp_op
, start_addr
);
654 label_set_addr(ctx
, loop_ctx
.while_end_label
);
658 static HRESULT
compile_foreach_statement(compile_ctx_t
*ctx
, foreach_statement_t
*stat
)
660 statement_ctx_t loop_ctx
= {1};
664 hres
= compile_expression(ctx
, stat
->group_expr
);
668 if(!push_instr(ctx
, OP_newenum
))
669 return E_OUTOFMEMORY
;
671 loop_start
= ctx
->instr_cnt
;
672 if(!(loop_ctx
.for_end_label
= alloc_label(ctx
)))
673 return E_OUTOFMEMORY
;
675 hres
= push_instr_uint_bstr(ctx
, OP_enumnext
, loop_ctx
.for_end_label
, stat
->identifier
);
679 hres
= compile_statement(ctx
, &loop_ctx
, stat
->body
);
683 hres
= push_instr_addr(ctx
, OP_jmp
, loop_start
);
687 label_set_addr(ctx
, loop_ctx
.for_end_label
);
691 static HRESULT
compile_forto_statement(compile_ctx_t
*ctx
, forto_statement_t
*stat
)
693 statement_ctx_t loop_ctx
= {2};
694 unsigned step_instr
, instr
;
698 identifier
= alloc_bstr_arg(ctx
, stat
->identifier
);
700 return E_OUTOFMEMORY
;
702 hres
= compile_expression(ctx
, stat
->from_expr
);
706 instr
= push_instr(ctx
, OP_assign_ident
);
708 return E_OUTOFMEMORY
;
709 instr_ptr(ctx
, instr
)->arg1
.bstr
= identifier
;
710 instr_ptr(ctx
, instr
)->arg2
.uint
= 0;
712 hres
= compile_expression(ctx
, stat
->to_expr
);
716 if(!push_instr(ctx
, OP_val
))
717 return E_OUTOFMEMORY
;
719 if(stat
->step_expr
) {
720 hres
= compile_expression(ctx
, stat
->step_expr
);
724 if(!push_instr(ctx
, OP_val
))
725 return E_OUTOFMEMORY
;
727 hres
= push_instr_int(ctx
, OP_short
, 1);
732 loop_ctx
.for_end_label
= alloc_label(ctx
);
733 if(!loop_ctx
.for_end_label
)
734 return E_OUTOFMEMORY
;
736 step_instr
= push_instr(ctx
, OP_step
);
738 return E_OUTOFMEMORY
;
739 instr_ptr(ctx
, step_instr
)->arg2
.bstr
= identifier
;
740 instr_ptr(ctx
, step_instr
)->arg1
.uint
= loop_ctx
.for_end_label
;
742 hres
= compile_statement(ctx
, &loop_ctx
, stat
->body
);
746 instr
= push_instr(ctx
, OP_incc
);
748 return E_OUTOFMEMORY
;
749 instr_ptr(ctx
, instr
)->arg1
.bstr
= identifier
;
751 hres
= push_instr_addr(ctx
, OP_jmp
, step_instr
);
755 hres
= push_instr_uint(ctx
, OP_pop
, 2);
759 label_set_addr(ctx
, loop_ctx
.for_end_label
);
763 static HRESULT
compile_select_statement(compile_ctx_t
*ctx
, select_statement_t
*stat
)
765 unsigned end_label
, case_cnt
= 0, *case_labels
= NULL
, i
;
766 case_clausule_t
*case_iter
;
767 expression_t
*expr_iter
;
770 hres
= compile_expression(ctx
, stat
->expr
);
774 if(!push_instr(ctx
, OP_val
))
775 return E_OUTOFMEMORY
;
777 end_label
= alloc_label(ctx
);
779 return E_OUTOFMEMORY
;
781 for(case_iter
= stat
->case_clausules
; case_iter
; case_iter
= case_iter
->next
)
785 case_labels
= heap_alloc(case_cnt
*sizeof(*case_labels
));
787 return E_OUTOFMEMORY
;
790 for(case_iter
= stat
->case_clausules
, i
=0; case_iter
; case_iter
= case_iter
->next
, i
++) {
791 case_labels
[i
] = alloc_label(ctx
);
792 if(!case_labels
[i
]) {
793 hres
= E_OUTOFMEMORY
;
800 for(expr_iter
= case_iter
->expr
; expr_iter
; expr_iter
= expr_iter
->next
) {
801 hres
= compile_expression(ctx
, expr_iter
);
805 hres
= push_instr_addr(ctx
, OP_case
, case_labels
[i
]);
812 heap_free(case_labels
);
816 hres
= push_instr_uint(ctx
, OP_pop
, 1);
818 heap_free(case_labels
);
822 hres
= push_instr_addr(ctx
, OP_jmp
, case_iter
? case_labels
[i
] : end_label
);
824 heap_free(case_labels
);
828 for(case_iter
= stat
->case_clausules
, i
=0; case_iter
; case_iter
= case_iter
->next
, i
++) {
829 label_set_addr(ctx
, case_labels
[i
]);
830 hres
= compile_statement(ctx
, NULL
, case_iter
->stat
);
837 hres
= push_instr_addr(ctx
, OP_jmp
, end_label
);
842 heap_free(case_labels
);
846 label_set_addr(ctx
, end_label
);
850 static HRESULT
compile_assignment(compile_ctx_t
*ctx
, member_expression_t
*member_expr
, expression_t
*value_expr
, BOOL is_set
)
856 if(member_expr
->obj_expr
) {
857 hres
= compile_expression(ctx
, member_expr
->obj_expr
);
861 op
= is_set
? OP_set_member
: OP_assign_member
;
863 op
= is_set
? OP_set_ident
: OP_assign_ident
;
866 hres
= compile_expression(ctx
, value_expr
);
870 hres
= compile_args(ctx
, member_expr
->args
, &args_cnt
);
874 return push_instr_bstr_uint(ctx
, op
, member_expr
->identifier
, args_cnt
);
877 static HRESULT
compile_assign_statement(compile_ctx_t
*ctx
, assign_statement_t
*stat
, BOOL is_set
)
879 return compile_assignment(ctx
, stat
->member_expr
, stat
->value_expr
, is_set
);
882 static HRESULT
compile_call_statement(compile_ctx_t
*ctx
, call_statement_t
*stat
)
884 /* It's challenging for parser to distinguish parameterized assignment with one argument from call
885 * with equality expression argument, so we do it in compiler. */
886 if(!stat
->is_strict
&& stat
->expr
->args
&& !stat
->expr
->args
->next
&& stat
->expr
->args
->type
== EXPR_EQUAL
) {
887 binary_expression_t
*eqexpr
= (binary_expression_t
*)stat
->expr
->args
;
889 if(eqexpr
->left
->type
== EXPR_BRACKETS
) {
890 member_expression_t new_member
= *stat
->expr
;
892 WARN("converting call expr to assign expr\n");
894 new_member
.args
= ((unary_expression_t
*)eqexpr
->left
)->subexpr
;
895 return compile_assignment(ctx
, &new_member
, eqexpr
->right
, FALSE
);
899 return compile_member_expression(ctx
, stat
->expr
, FALSE
);
902 static BOOL
lookup_dim_decls(compile_ctx_t
*ctx
, const WCHAR
*name
)
904 dim_decl_t
*dim_decl
;
906 for(dim_decl
= ctx
->dim_decls
; dim_decl
; dim_decl
= dim_decl
->next
) {
907 if(!strcmpiW(dim_decl
->name
, name
))
914 static BOOL
lookup_args_name(compile_ctx_t
*ctx
, const WCHAR
*name
)
918 for(i
= 0; i
< ctx
->func
->arg_cnt
; i
++) {
919 if(!strcmpiW(ctx
->func
->args
[i
].name
, name
))
926 static HRESULT
compile_dim_statement(compile_ctx_t
*ctx
, dim_statement_t
*stat
)
928 dim_decl_t
*dim_decl
= stat
->dim_decls
;
931 if(lookup_dim_decls(ctx
, dim_decl
->name
) || lookup_args_name(ctx
, dim_decl
->name
)
932 || lookup_const_decls(ctx
, dim_decl
->name
, FALSE
)) {
933 FIXME("dim %s name redefined\n", debugstr_w(dim_decl
->name
));
937 ctx
->func
->var_cnt
++;
940 dim_decl
= dim_decl
->next
;
943 dim_decl
->next
= ctx
->dim_decls
;
944 ctx
->dim_decls
= stat
->dim_decls
;
948 static HRESULT
compile_const_statement(compile_ctx_t
*ctx
, const_statement_t
*stat
)
950 const_decl_t
*decl
, *next_decl
= stat
->decls
;
955 if(lookup_const_decls(ctx
, decl
->name
, FALSE
) || lookup_args_name(ctx
, decl
->name
)
956 || lookup_dim_decls(ctx
, decl
->name
)) {
957 FIXME("%s redefined\n", debugstr_w(decl
->name
));
961 if(ctx
->func
->type
== FUNC_GLOBAL
) {
964 hres
= compile_expression(ctx
, decl
->value_expr
);
968 hres
= push_instr_bstr(ctx
, OP_const
, decl
->name
);
973 next_decl
= decl
->next
;
974 decl
->next
= ctx
->const_decls
;
975 ctx
->const_decls
= decl
;
981 static HRESULT
compile_function_statement(compile_ctx_t
*ctx
, function_statement_t
*stat
)
983 if(ctx
->func
!= &ctx
->code
->main_code
) {
984 FIXME("Function is not in the global code\n");
988 stat
->func_decl
->next
= ctx
->func_decls
;
989 ctx
->func_decls
= stat
->func_decl
;
993 static HRESULT
compile_exitdo_statement(compile_ctx_t
*ctx
)
995 statement_ctx_t
*iter
;
996 unsigned pop_cnt
= 0;
998 for(iter
= ctx
->stat_ctx
; iter
; iter
= iter
->next
) {
999 pop_cnt
+= iter
->stack_use
;
1000 if(iter
->while_end_label
)
1004 FIXME("Exit Do outside Do Loop\n");
1011 hres
= push_instr_uint(ctx
, OP_pop
, pop_cnt
);
1016 return push_instr_addr(ctx
, OP_jmp
, iter
->while_end_label
);
1019 static HRESULT
compile_exitfor_statement(compile_ctx_t
*ctx
)
1021 statement_ctx_t
*iter
;
1022 unsigned pop_cnt
= 0;
1024 for(iter
= ctx
->stat_ctx
; iter
; iter
= iter
->next
) {
1025 pop_cnt
+= iter
->stack_use
;
1026 if(iter
->for_end_label
)
1030 FIXME("Exit For outside For loop\n");
1037 hres
= push_instr_uint(ctx
, OP_pop
, pop_cnt
);
1042 return push_instr_addr(ctx
, OP_jmp
, iter
->for_end_label
);
1045 static HRESULT
exit_label(compile_ctx_t
*ctx
, unsigned jmp_label
)
1047 statement_ctx_t
*iter
;
1048 unsigned pop_cnt
= 0;
1050 for(iter
= ctx
->stat_ctx
; iter
; iter
= iter
->next
)
1051 pop_cnt
+= iter
->stack_use
;
1056 hres
= push_instr_uint(ctx
, OP_pop
, pop_cnt
);
1061 return push_instr_addr(ctx
, OP_jmp
, jmp_label
);
1064 static HRESULT
compile_exitsub_statement(compile_ctx_t
*ctx
)
1066 if(!ctx
->sub_end_label
) {
1067 FIXME("Exit Sub outside Sub?\n");
1071 return exit_label(ctx
, ctx
->sub_end_label
);
1074 static HRESULT
compile_exitfunc_statement(compile_ctx_t
*ctx
)
1076 if(!ctx
->func_end_label
) {
1077 FIXME("Exit Function outside Function?\n");
1081 return exit_label(ctx
, ctx
->func_end_label
);
1084 static HRESULT
compile_exitprop_statement(compile_ctx_t
*ctx
)
1086 if(!ctx
->prop_end_label
) {
1087 FIXME("Exit Property outside Property?\n");
1091 return exit_label(ctx
, ctx
->prop_end_label
);
1094 static HRESULT
compile_onerror_statement(compile_ctx_t
*ctx
, onerror_statement_t
*stat
)
1096 return push_instr_int(ctx
, OP_errmode
, stat
->resume_next
);
1099 static HRESULT
compile_statement(compile_ctx_t
*ctx
, statement_ctx_t
*stat_ctx
, statement_t
*stat
)
1104 stat_ctx
->next
= ctx
->stat_ctx
;
1105 ctx
->stat_ctx
= stat_ctx
;
1109 switch(stat
->type
) {
1111 hres
= compile_assign_statement(ctx
, (assign_statement_t
*)stat
, FALSE
);
1114 hres
= compile_call_statement(ctx
, (call_statement_t
*)stat
);
1117 hres
= compile_const_statement(ctx
, (const_statement_t
*)stat
);
1120 hres
= compile_dim_statement(ctx
, (dim_statement_t
*)stat
);
1124 hres
= compile_dowhile_statement(ctx
, (while_statement_t
*)stat
);
1127 hres
= compile_exitdo_statement(ctx
);
1130 hres
= compile_exitfor_statement(ctx
);
1133 hres
= compile_exitfunc_statement(ctx
);
1136 hres
= compile_exitprop_statement(ctx
);
1139 hres
= compile_exitsub_statement(ctx
);
1142 hres
= compile_foreach_statement(ctx
, (foreach_statement_t
*)stat
);
1145 hres
= compile_forto_statement(ctx
, (forto_statement_t
*)stat
);
1148 hres
= compile_function_statement(ctx
, (function_statement_t
*)stat
);
1151 hres
= compile_if_statement(ctx
, (if_statement_t
*)stat
);
1154 hres
= compile_onerror_statement(ctx
, (onerror_statement_t
*)stat
);
1157 hres
= compile_select_statement(ctx
, (select_statement_t
*)stat
);
1160 hres
= compile_assign_statement(ctx
, (assign_statement_t
*)stat
, TRUE
);
1163 hres
= push_instr(ctx
, OP_stop
) ? S_OK
: E_OUTOFMEMORY
;
1167 case STAT_WHILELOOP
:
1168 hres
= compile_while_statement(ctx
, (while_statement_t
*)stat
);
1171 FIXME("Unimplemented statement type %d\n", stat
->type
);
1181 assert(ctx
->stat_ctx
== stat_ctx
);
1182 ctx
->stat_ctx
= stat_ctx
->next
;
1188 static void resolve_labels(compile_ctx_t
*ctx
, unsigned off
)
1192 for(instr
= ctx
->code
->instrs
+off
; instr
< ctx
->code
->instrs
+ctx
->instr_cnt
; instr
++) {
1193 if(instr_info
[instr
->op
].arg1_type
== ARG_ADDR
&& (instr
->arg1
.uint
& LABEL_FLAG
)) {
1194 assert((instr
->arg1
.uint
& ~LABEL_FLAG
) < ctx
->labels_cnt
);
1195 instr
->arg1
.uint
= ctx
->labels
[instr
->arg1
.uint
& ~LABEL_FLAG
];
1197 assert(instr_info
[instr
->op
].arg2_type
!= ARG_ADDR
);
1200 ctx
->labels_cnt
= 0;
1203 static HRESULT
compile_func(compile_ctx_t
*ctx
, statement_t
*stat
, function_t
*func
)
1207 func
->code_off
= ctx
->instr_cnt
;
1209 ctx
->sub_end_label
= 0;
1210 ctx
->func_end_label
= 0;
1211 ctx
->prop_end_label
= 0;
1213 switch(func
->type
) {
1215 ctx
->func_end_label
= alloc_label(ctx
);
1216 if(!ctx
->func_end_label
)
1217 return E_OUTOFMEMORY
;
1220 ctx
->sub_end_label
= alloc_label(ctx
);
1221 if(!ctx
->sub_end_label
)
1222 return E_OUTOFMEMORY
;
1228 ctx
->prop_end_label
= alloc_label(ctx
);
1229 if(!ctx
->prop_end_label
)
1230 return E_OUTOFMEMORY
;
1237 ctx
->dim_decls
= NULL
;
1238 ctx
->const_decls
= NULL
;
1239 hres
= compile_statement(ctx
, NULL
, stat
);
1244 if(ctx
->sub_end_label
)
1245 label_set_addr(ctx
, ctx
->sub_end_label
);
1246 if(ctx
->func_end_label
)
1247 label_set_addr(ctx
, ctx
->func_end_label
);
1248 if(ctx
->prop_end_label
)
1249 label_set_addr(ctx
, ctx
->prop_end_label
);
1251 if(!push_instr(ctx
, OP_ret
))
1252 return E_OUTOFMEMORY
;
1254 resolve_labels(ctx
, func
->code_off
);
1257 dim_decl_t
*dim_decl
;
1259 if(func
->type
== FUNC_GLOBAL
) {
1260 dynamic_var_t
*new_var
;
1264 for(dim_decl
= ctx
->dim_decls
; dim_decl
; dim_decl
= dim_decl
->next
) {
1265 new_var
= compiler_alloc(ctx
->code
, sizeof(*new_var
));
1267 return E_OUTOFMEMORY
;
1269 new_var
->name
= compiler_alloc_string(ctx
->code
, dim_decl
->name
);
1271 return E_OUTOFMEMORY
;
1273 V_VT(&new_var
->v
) = VT_EMPTY
;
1274 new_var
->is_const
= FALSE
;
1276 new_var
->next
= ctx
->global_vars
;
1277 ctx
->global_vars
= new_var
;
1282 func
->vars
= compiler_alloc(ctx
->code
, func
->var_cnt
* sizeof(var_desc_t
));
1284 return E_OUTOFMEMORY
;
1286 for(dim_decl
= ctx
->dim_decls
, i
=0; dim_decl
; dim_decl
= dim_decl
->next
, i
++) {
1287 func
->vars
[i
].name
= compiler_alloc_string(ctx
->code
, dim_decl
->name
);
1288 if(!func
->vars
[i
].name
)
1289 return E_OUTOFMEMORY
;
1292 assert(i
== func
->var_cnt
);
1299 static BOOL
lookup_funcs_name(compile_ctx_t
*ctx
, const WCHAR
*name
)
1303 for(iter
= ctx
->funcs
; iter
; iter
= iter
->next
) {
1304 if(!strcmpiW(iter
->name
, name
))
1311 static HRESULT
create_function(compile_ctx_t
*ctx
, function_decl_t
*decl
, function_t
**ret
)
1316 if(lookup_dim_decls(ctx
, decl
->name
) || lookup_funcs_name(ctx
, decl
->name
) || lookup_const_decls(ctx
, decl
->name
, FALSE
)) {
1317 FIXME("%s: redefinition\n", debugstr_w(decl
->name
));
1321 func
= compiler_alloc(ctx
->code
, sizeof(*func
));
1323 return E_OUTOFMEMORY
;
1325 func
->name
= compiler_alloc_string(ctx
->code
, decl
->name
);
1327 return E_OUTOFMEMORY
;
1331 func
->code_ctx
= ctx
->code
;
1332 func
->type
= decl
->type
;
1333 func
->is_public
= decl
->is_public
;
1340 for(arg
= decl
->args
; arg
; arg
= arg
->next
)
1343 func
->args
= compiler_alloc(ctx
->code
, func
->arg_cnt
* sizeof(arg_desc_t
));
1345 return E_OUTOFMEMORY
;
1347 for(i
= 0, arg
= decl
->args
; arg
; arg
= arg
->next
, i
++) {
1348 func
->args
[i
].name
= compiler_alloc_string(ctx
->code
, arg
->name
);
1349 if(!func
->args
[i
].name
)
1350 return E_OUTOFMEMORY
;
1351 func
->args
[i
].by_ref
= arg
->by_ref
;
1357 hres
= compile_func(ctx
, decl
->body
, func
);
1365 static BOOL
lookup_class_name(compile_ctx_t
*ctx
, const WCHAR
*name
)
1369 for(iter
= ctx
->classes
; iter
; iter
= iter
->next
) {
1370 if(!strcmpiW(iter
->name
, name
))
1377 static HRESULT
create_class_funcprop(compile_ctx_t
*ctx
, function_decl_t
*func_decl
, vbdisp_funcprop_desc_t
*desc
)
1379 vbdisp_invoke_type_t invoke_type
;
1380 function_decl_t
*funcprop_decl
;
1383 desc
->name
= compiler_alloc_string(ctx
->code
, func_decl
->name
);
1385 return E_OUTOFMEMORY
;
1387 for(funcprop_decl
= func_decl
; funcprop_decl
; funcprop_decl
= funcprop_decl
->next_prop_func
) {
1388 switch(funcprop_decl
->type
) {
1393 invoke_type
= VBDISP_CALLGET
;
1396 invoke_type
= VBDISP_LET
;
1399 invoke_type
= VBDISP_SET
;
1405 assert(!desc
->entries
[invoke_type
]);
1407 if(funcprop_decl
->is_public
)
1408 desc
->is_public
= TRUE
;
1410 hres
= create_function(ctx
, funcprop_decl
, desc
->entries
+invoke_type
);
1418 static BOOL
lookup_class_funcs(class_desc_t
*class_desc
, const WCHAR
*name
)
1422 for(i
=0; i
< class_desc
->func_cnt
; i
++) {
1423 if(class_desc
->funcs
[i
].name
&& !strcmpiW(class_desc
->funcs
[i
].name
, name
))
1430 static HRESULT
compile_class(compile_ctx_t
*ctx
, class_decl_t
*class_decl
)
1432 function_decl_t
*func_decl
, *func_prop_decl
;
1433 class_prop_decl_t
*prop_decl
;
1434 class_desc_t
*class_desc
;
1438 static const WCHAR class_initializeW
[] = {'c','l','a','s','s','_','i','n','i','t','i','a','l','i','z','e',0};
1439 static const WCHAR class_terminateW
[] = {'c','l','a','s','s','_','t','e','r','m','i','n','a','t','e',0};
1441 if(lookup_dim_decls(ctx
, class_decl
->name
) || lookup_funcs_name(ctx
, class_decl
->name
)
1442 || lookup_const_decls(ctx
, class_decl
->name
, FALSE
) || lookup_class_name(ctx
, class_decl
->name
)) {
1443 FIXME("%s: redefinition\n", debugstr_w(class_decl
->name
));
1447 class_desc
= compiler_alloc_zero(ctx
->code
, sizeof(*class_desc
));
1449 return E_OUTOFMEMORY
;
1451 class_desc
->name
= compiler_alloc_string(ctx
->code
, class_decl
->name
);
1452 if(!class_desc
->name
)
1453 return E_OUTOFMEMORY
;
1455 class_desc
->func_cnt
= 1; /* always allocate slot for default getter */
1457 for(func_decl
= class_decl
->funcs
; func_decl
; func_decl
= func_decl
->next
) {
1458 for(func_prop_decl
= func_decl
; func_prop_decl
; func_prop_decl
= func_prop_decl
->next_prop_func
) {
1459 if(func_prop_decl
->type
== FUNC_DEFGET
)
1463 class_desc
->func_cnt
++;
1466 class_desc
->funcs
= compiler_alloc(ctx
->code
, class_desc
->func_cnt
*sizeof(*class_desc
->funcs
));
1467 if(!class_desc
->funcs
)
1468 return E_OUTOFMEMORY
;
1469 memset(class_desc
->funcs
, 0, class_desc
->func_cnt
*sizeof(*class_desc
->funcs
));
1471 for(func_decl
= class_decl
->funcs
, i
=1; func_decl
; func_decl
= func_decl
->next
, i
++) {
1472 for(func_prop_decl
= func_decl
; func_prop_decl
; func_prop_decl
= func_prop_decl
->next_prop_func
) {
1473 if(func_prop_decl
->type
== FUNC_DEFGET
) {
1479 if(!strcmpiW(class_initializeW
, func_decl
->name
)) {
1480 if(func_decl
->type
!= FUNC_SUB
) {
1481 FIXME("class initializer is not sub\n");
1485 class_desc
->class_initialize_id
= i
;
1486 }else if(!strcmpiW(class_terminateW
, func_decl
->name
)) {
1487 if(func_decl
->type
!= FUNC_SUB
) {
1488 FIXME("class terminator is not sub\n");
1492 class_desc
->class_terminate_id
= i
;
1495 hres
= create_class_funcprop(ctx
, func_decl
, class_desc
->funcs
+ (func_prop_decl
? 0 : i
));
1500 for(prop_decl
= class_decl
->props
; prop_decl
; prop_decl
= prop_decl
->next
)
1501 class_desc
->prop_cnt
++;
1503 class_desc
->props
= compiler_alloc(ctx
->code
, class_desc
->prop_cnt
*sizeof(*class_desc
->props
));
1504 if(!class_desc
->props
)
1505 return E_OUTOFMEMORY
;
1507 for(prop_decl
= class_decl
->props
, i
=0; prop_decl
; prop_decl
= prop_decl
->next
, i
++) {
1508 if(lookup_class_funcs(class_desc
, prop_decl
->name
)) {
1509 FIXME("Property %s redefined\n", debugstr_w(prop_decl
->name
));
1513 class_desc
->props
[i
].name
= compiler_alloc_string(ctx
->code
, prop_decl
->name
);
1514 if(!class_desc
->props
[i
].name
)
1515 return E_OUTOFMEMORY
;
1517 class_desc
->props
[i
].is_public
= prop_decl
->is_public
;
1520 class_desc
->next
= ctx
->classes
;
1521 ctx
->classes
= class_desc
;
1525 static BOOL
lookup_script_identifier(script_ctx_t
*script
, const WCHAR
*identifier
)
1527 class_desc_t
*class;
1531 for(var
= script
->global_vars
; var
; var
= var
->next
) {
1532 if(!strcmpiW(var
->name
, identifier
))
1536 for(func
= script
->global_funcs
; func
; func
= func
->next
) {
1537 if(!strcmpiW(func
->name
, identifier
))
1541 for(class = script
->classes
; class; class = class->next
) {
1542 if(!strcmpiW(class->name
, identifier
))
1549 static HRESULT
check_script_collisions(compile_ctx_t
*ctx
, script_ctx_t
*script
)
1551 class_desc_t
*class;
1555 for(var
= ctx
->global_vars
; var
; var
= var
->next
) {
1556 if(lookup_script_identifier(script
, var
->name
)) {
1557 FIXME("%s: redefined\n", debugstr_w(var
->name
));
1562 for(func
= ctx
->funcs
; func
; func
= func
->next
) {
1563 if(lookup_script_identifier(script
, func
->name
)) {
1564 FIXME("%s: redefined\n", debugstr_w(func
->name
));
1569 for(class = ctx
->classes
; class; class = class->next
) {
1570 if(lookup_script_identifier(script
, class->name
)) {
1571 FIXME("%s: redefined\n", debugstr_w(class->name
));
1579 void release_vbscode(vbscode_t
*code
)
1583 list_remove(&code
->entry
);
1585 for(i
=0; i
< code
->bstr_cnt
; i
++)
1586 SysFreeString(code
->bstr_pool
[i
]);
1588 vbsheap_free(&code
->heap
);
1590 heap_free(code
->bstr_pool
);
1591 heap_free(code
->source
);
1592 heap_free(code
->instrs
);
1596 static vbscode_t
*alloc_vbscode(compile_ctx_t
*ctx
, const WCHAR
*source
)
1600 ret
= heap_alloc(sizeof(*ret
));
1604 ret
->source
= heap_strdupW(source
);
1610 ret
->instrs
= heap_alloc(32*sizeof(instr_t
));
1612 release_vbscode(ret
);
1617 ctx
->instr_size
= 32;
1618 vbsheap_init(&ret
->heap
);
1620 ret
->option_explicit
= ctx
->parser
.option_explicit
;
1622 ret
->bstr_pool
= NULL
;
1623 ret
->bstr_pool_size
= 0;
1625 ret
->pending_exec
= FALSE
;
1627 ret
->main_code
.type
= FUNC_GLOBAL
;
1628 ret
->main_code
.name
= NULL
;
1629 ret
->main_code
.code_ctx
= ret
;
1630 ret
->main_code
.vars
= NULL
;
1631 ret
->main_code
.var_cnt
= 0;
1632 ret
->main_code
.arg_cnt
= 0;
1633 ret
->main_code
.args
= NULL
;
1635 list_init(&ret
->entry
);
1639 static void release_compiler(compile_ctx_t
*ctx
)
1641 parser_release(&ctx
->parser
);
1642 heap_free(ctx
->labels
);
1644 release_vbscode(ctx
->code
);
1647 HRESULT
compile_script(script_ctx_t
*script
, const WCHAR
*src
, vbscode_t
**ret
)
1649 function_t
*new_func
;
1650 function_decl_t
*func_decl
;
1651 class_decl_t
*class_decl
;
1656 hres
= parse_script(&ctx
.parser
, src
);
1660 code
= ctx
.code
= alloc_vbscode(&ctx
, src
);
1662 return E_OUTOFMEMORY
;
1665 ctx
.func_decls
= NULL
;
1666 ctx
.global_vars
= NULL
;
1667 ctx
.dim_decls
= NULL
;
1670 ctx
.global_consts
= NULL
;
1671 ctx
.stat_ctx
= NULL
;
1672 ctx
.labels_cnt
= ctx
.labels_size
= 0;
1674 hres
= compile_func(&ctx
, ctx
.parser
.stats
, &ctx
.code
->main_code
);
1676 release_compiler(&ctx
);
1680 ctx
.global_consts
= ctx
.const_decls
;
1682 for(func_decl
= ctx
.func_decls
; func_decl
; func_decl
= func_decl
->next
) {
1683 hres
= create_function(&ctx
, func_decl
, &new_func
);
1685 release_compiler(&ctx
);
1689 new_func
->next
= ctx
.funcs
;
1690 ctx
.funcs
= new_func
;
1693 for(class_decl
= ctx
.parser
.class_decls
; class_decl
; class_decl
= class_decl
->next
) {
1694 hres
= compile_class(&ctx
, class_decl
);
1696 release_compiler(&ctx
);
1701 hres
= check_script_collisions(&ctx
, script
);
1703 release_compiler(&ctx
);
1707 if(ctx
.global_vars
) {
1710 for(var
= ctx
.global_vars
; var
->next
; var
= var
->next
);
1712 var
->next
= script
->global_vars
;
1713 script
->global_vars
= ctx
.global_vars
;
1717 for(new_func
= ctx
.funcs
; new_func
->next
; new_func
= new_func
->next
);
1719 new_func
->next
= script
->global_funcs
;
1720 script
->global_funcs
= ctx
.funcs
;
1724 class_desc_t
*class = ctx
.classes
;
1727 class->ctx
= script
;
1730 class = class->next
;
1733 class->next
= script
->classes
;
1734 script
->classes
= ctx
.classes
;
1737 if(TRACE_ON(vbscript_disas
))
1741 release_compiler(&ctx
);
1743 list_add_tail(&script
->code_list
, &code
->entry
);