dlls/vbscript/vbscript.h

   1 /*
   2  * Copyright 2011 Jacek Caban for CodeWeavers
   3  *
   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.
   8  *
   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.
  13  *
  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
  17  */
  18
  19 #include <stdarg.h>
  20
  21 #define COBJMACROS
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "ole2.h"
  26 #include "dispex.h"
  27 #include "activscp.h"
  28
  29 #include "vbscript_classes.h"
  30
  31 #include "wine/list.h"
  32 #include "wine/unicode.h"
  33
  34 typedef struct {
  35     void **blocks;
  36     DWORD block_cnt;
  37     DWORD last_block;
  38     DWORD offset;
  39     struct list custom_blocks;
  40 } vbsheap_t;
  41
  42 void vbsheap_init(vbsheap_t*) DECLSPEC_HIDDEN;
  43 void *vbsheap_alloc(vbsheap_t*,size_t) __WINE_ALLOC_SIZE(2) DECLSPEC_HIDDEN;
  44 void vbsheap_free(vbsheap_t*) DECLSPEC_HIDDEN;
  45
  46 typedef struct _function_t function_t;
  47 typedef struct _vbscode_t vbscode_t;
  48 typedef struct _script_ctx_t script_ctx_t;
  49 typedef struct _vbdisp_t vbdisp_t;
  50
  51 typedef struct named_item_t {
  52     IDispatch *disp;
  53     DWORD flags;
  54     LPWSTR name;
  55
  56     struct list entry;
  57 } named_item_t;
  58
  59 typedef enum {
  60     VBDISP_CALLGET,
  61     VBDISP_LET,
  62     VBDISP_SET,
  63     VBDISP_ANY
  64 } vbdisp_invoke_type_t;
  65
  66 typedef struct {
  67     BOOL is_public;
  68     const WCHAR *name;
  69 } vbdisp_prop_desc_t;
  70
  71 typedef struct {
  72     const WCHAR *name;
  73     BOOL is_public;
  74     function_t *entries[VBDISP_ANY];
  75 } vbdisp_funcprop_desc_t;
  76
  77 #define BP_GET      1
  78 #define BP_GETPUT   2
  79
  80 typedef struct {
  81     DISPID id;
  82     HRESULT (*proc)(vbdisp_t*,VARIANT*,unsigned,VARIANT*);
  83     DWORD flags;
  84     unsigned min_args;
  85     unsigned max_args;
  86 } builtin_prop_t;
  87
  88 typedef struct _class_desc_t {
  89     const WCHAR *name;
  90     script_ctx_t *ctx;
  91
  92     unsigned class_initialize_id;
  93     unsigned class_terminate_id;
  94     unsigned func_cnt;
  95     vbdisp_funcprop_desc_t *funcs;
  96
  97     unsigned prop_cnt;
  98     vbdisp_prop_desc_t *props;
  99
 100     unsigned builtin_prop_cnt;
 101     const builtin_prop_t *builtin_props;
 102     ITypeInfo *typeinfo;
 103     function_t *value_func;
 104
 105     struct _class_desc_t *next;
 106 } class_desc_t;
 107
 108 struct _vbdisp_t {
 109     IDispatchEx IDispatchEx_iface;
 110
 111     LONG ref;
 112     BOOL terminator_ran;
 113     struct list entry;
 114
 115     const class_desc_t *desc;
 116     VARIANT props[1];
 117 };
 118
 119 typedef struct _ident_map_t ident_map_t;
 120
 121 typedef struct {
 122     IDispatchEx IDispatchEx_iface;
 123     LONG ref;
 124
 125     ident_map_t *ident_map;
 126     unsigned ident_map_cnt;
 127     unsigned ident_map_size;
 128
 129     script_ctx_t *ctx;
 130 } ScriptDisp;
 131
 132 HRESULT create_vbdisp(const class_desc_t*,vbdisp_t**) DECLSPEC_HIDDEN;
 133 HRESULT disp_get_id(IDispatch*,BSTR,vbdisp_invoke_type_t,BOOL,DISPID*) DECLSPEC_HIDDEN;
 134 HRESULT vbdisp_get_id(vbdisp_t*,BSTR,vbdisp_invoke_type_t,BOOL,DISPID*) DECLSPEC_HIDDEN;
 135 HRESULT disp_call(script_ctx_t*,IDispatch*,DISPID,DISPPARAMS*,VARIANT*) DECLSPEC_HIDDEN;
 136 HRESULT disp_propput(script_ctx_t*,IDispatch*,DISPID,DISPPARAMS*) DECLSPEC_HIDDEN;
 137 void collect_objects(script_ctx_t*) DECLSPEC_HIDDEN;
 138 HRESULT create_procedure_disp(script_ctx_t*,vbscode_t*,IDispatch**) DECLSPEC_HIDDEN;
 139 HRESULT create_script_disp(script_ctx_t*,ScriptDisp**) DECLSPEC_HIDDEN;
 140
 141 static inline unsigned arg_cnt(const DISPPARAMS *dp)
 142 {
 143     return dp->cArgs - dp->cNamedArgs;
 144 }
 145
 146 static inline VARIANT *get_arg(DISPPARAMS *dp, DWORD i)
 147 {
 148     return dp->rgvarg + dp->cArgs-i-1;
 149 }
 150
 151 typedef struct _dynamic_var_t {
 152     struct _dynamic_var_t *next;
 153     VARIANT v;
 154     const WCHAR *name;
 155     BOOL is_const;
 156 } dynamic_var_t;
 157
 158 struct _script_ctx_t {
 159     IActiveScriptSite *site;
 160     LCID lcid;
 161
 162     IInternetHostSecurityManager *secmgr;
 163     DWORD safeopt;
 164
 165     IDispatch *host_global;
 166
 167     ScriptDisp *script_obj;
 168
 169     class_desc_t global_desc;
 170     vbdisp_t *global_obj;
 171
 172     class_desc_t err_desc;
 173     vbdisp_t *err_obj;
 174
 175     dynamic_var_t *global_vars;
 176     function_t *global_funcs;
 177     class_desc_t *classes;
 178     class_desc_t *procs;
 179
 180     vbsheap_t heap;
 181
 182     struct list objects;
 183     struct list code_list;
 184     struct list named_items;
 185 };
 186
 187 HRESULT init_global(script_ctx_t*) DECLSPEC_HIDDEN;
 188 HRESULT init_err(script_ctx_t*) DECLSPEC_HIDDEN;
 189
 190 IUnknown *create_ax_site(script_ctx_t*) DECLSPEC_HIDDEN;
 191
 192 typedef enum {
 193     ARG_NONE = 0,
 194     ARG_STR,
 195     ARG_BSTR,
 196     ARG_INT,
 197     ARG_UINT,
 198     ARG_ADDR,
 199     ARG_DOUBLE
 200 } instr_arg_type_t;
 201
 202 #define OP_LIST                                   \
 203     X(add,            1, 0,           0)          \
 204     X(and,            1, 0,           0)          \
 205     X(assign_ident,   1, ARG_BSTR,    ARG_UINT)   \
 206     X(assign_member,  1, ARG_BSTR,    ARG_UINT)   \
 207     X(bool,           1, ARG_INT,     0)          \
 208     X(case,           0, ARG_ADDR,    0)          \
 209     X(concat,         1, 0,           0)          \
 210     X(const,          1, ARG_BSTR,    0)          \
 211     X(div,            1, 0,           0)          \
 212     X(double,         1, ARG_DOUBLE,  0)          \
 213     X(empty,          1, 0,           0)          \
 214     X(enumnext,       0, ARG_ADDR,    ARG_BSTR)   \
 215     X(equal,          1, 0,           0)          \
 216     X(errmode,        1, ARG_INT,     0)          \
 217     X(eqv,            1, 0,           0)          \
 218     X(exp,            1, 0,           0)          \
 219     X(gt,             1, 0,           0)          \
 220     X(gteq,           1, 0,           0)          \
 221     X(icall,          1, ARG_BSTR,    ARG_UINT)   \
 222     X(icallv,         1, ARG_BSTR,    ARG_UINT)   \
 223     X(idiv,           1, 0,           0)          \
 224     X(imp,            1, 0,           0)          \
 225     X(incc,           1, ARG_BSTR,    0)          \
 226     X(is,             1, 0,           0)          \
 227     X(jmp,            0, ARG_ADDR,    0)          \
 228     X(jmp_false,      0, ARG_ADDR,    0)          \
 229     X(jmp_true,       0, ARG_ADDR,    0)          \
 230     X(long,           1, ARG_INT,     0)          \
 231     X(lt,             1, 0,           0)          \
 232     X(lteq,           1, 0,           0)          \
 233     X(mcall,          1, ARG_BSTR,    ARG_UINT)   \
 234     X(mcallv,         1, ARG_BSTR,    ARG_UINT)   \
 235     X(me,             1, 0,           0)          \
 236     X(mod,            1, 0,           0)          \
 237     X(mul,            1, 0,           0)          \
 238     X(neg,            1, 0,           0)          \
 239     X(nequal,         1, 0,           0)          \
 240     X(new,            1, ARG_STR,     0)          \
 241     X(newenum,        1, 0,           0)          \
 242     X(not,            1, 0,           0)          \
 243     X(nothing,        1, 0,           0)          \
 244     X(null,           1, 0,           0)          \
 245     X(or,             1, 0,           0)          \
 246     X(pop,            1, ARG_UINT,    0)          \
 247     X(ret,            0, 0,           0)          \
 248     X(set_ident,      1, ARG_BSTR,    ARG_UINT)   \
 249     X(set_member,     1, ARG_BSTR,    ARG_UINT)   \
 250     X(short,          1, ARG_INT,     0)          \
 251     X(step,           0, ARG_ADDR,    ARG_BSTR)   \
 252     X(stop,           1, 0,           0)          \
 253     X(string,         1, ARG_STR,     0)          \
 254     X(sub,            1, 0,           0)          \
 255     X(val,            1, 0,           0)          \
 256     X(xor,            1, 0,           0)
 257
 258 typedef enum {
 259 #define X(x,n,a,b) OP_##x,
 260 OP_LIST
 261 #undef X
 262     OP_LAST
 263 } vbsop_t;
 264
 265 typedef union {
 266     const WCHAR *str;
 267     BSTR bstr;
 268     unsigned uint;
 269     LONG lng;
 270     double *dbl;
 271 } instr_arg_t;
 272
 273 typedef struct {
 274     vbsop_t op;
 275     instr_arg_t arg1;
 276     instr_arg_t arg2;
 277 } instr_t;
 278
 279 typedef struct {
 280     const WCHAR *name;
 281     BOOL by_ref;
 282 } arg_desc_t;
 283
 284 typedef enum {
 285     FUNC_GLOBAL,
 286     FUNC_FUNCTION,
 287     FUNC_SUB,
 288     FUNC_PROPGET,
 289     FUNC_PROPLET,
 290     FUNC_PROPSET,
 291     FUNC_DEFGET
 292 } function_type_t;
 293
 294 typedef struct {
 295     const WCHAR *name;
 296 } var_desc_t;
 297
 298 struct _function_t {
 299     function_type_t type;
 300     const WCHAR *name;
 301     BOOL is_public;
 302     arg_desc_t *args;
 303     unsigned arg_cnt;
 304     var_desc_t *vars;
 305     unsigned var_cnt;
 306     unsigned code_off;
 307     vbscode_t *code_ctx;
 308     function_t *next;
 309 };
 310
 311 struct _vbscode_t {
 312     instr_t *instrs;
 313     WCHAR *source;
 314
 315     BOOL option_explicit;
 316
 317     BOOL pending_exec;
 318     function_t main_code;
 319
 320     BSTR *bstr_pool;
 321     unsigned bstr_pool_size;
 322     unsigned bstr_cnt;
 323     vbsheap_t heap;
 324
 325     struct list entry;
 326 };
 327
 328 void release_vbscode(vbscode_t*) DECLSPEC_HIDDEN;
 329 HRESULT compile_script(script_ctx_t*,const WCHAR*,const WCHAR*,vbscode_t**) DECLSPEC_HIDDEN;
 330 HRESULT exec_script(script_ctx_t*,function_t*,IDispatch*,DISPPARAMS*,VARIANT*) DECLSPEC_HIDDEN;
 331 void release_dynamic_vars(dynamic_var_t*) DECLSPEC_HIDDEN;
 332
 333 #define TID_LIST \
 334     XDIID(ErrObj) \
 335     XDIID(GlobalObj)
 336
 337 typedef enum {
 338 #define XDIID(iface) iface ## _tid,
 339 TID_LIST
 340 #undef XDIID
 341     LAST_tid
 342 } tid_t;
 343
 344 HRESULT get_typeinfo(tid_t,ITypeInfo**) DECLSPEC_HIDDEN;
 345
 346 #ifndef INT32_MIN
 347 #define INT32_MIN (-2147483647-1)
 348 #endif
 349
 350 #ifndef INT32_MAX
 351 #define INT32_MAX (2147483647)
 352 #endif
 353
 354 static inline BOOL is_int32(double d)
 355 {
 356     return INT32_MIN <= d && d <= INT32_MAX && (double)(int)d == d;
 357 }
 358
 359 HRESULT WINAPI VBScriptFactory_CreateInstance(IClassFactory*,IUnknown*,REFIID,void**) DECLSPEC_HIDDEN;
 360
 361 const char *debugstr_variant(const VARIANT*) DECLSPEC_HIDDEN;
 362
 363 static inline void *heap_alloc(size_t len)
 364 {
 365     return HeapAlloc(GetProcessHeap(), 0, len);
 366 }
 367
 368 static inline void *heap_alloc_zero(size_t len)
 369 {
 370     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 371 }
 372
 373 static inline void *heap_realloc(void *mem, size_t len)
 374 {
 375     return HeapReAlloc(GetProcessHeap(), 0, mem, len);
 376 }
 377
 378 static inline BOOL heap_free(void *mem)
 379 {
 380     return HeapFree(GetProcessHeap(), 0, mem);
 381 }
 382
 383 static inline LPWSTR heap_strdupW(LPCWSTR str)
 384 {
 385     LPWSTR ret = NULL;
 386
 387     if(str) {
 388         DWORD size;
 389
 390         size = (strlenW(str)+1)*sizeof(WCHAR);
 391         ret = heap_alloc(size);
 392         if(ret)
 393             memcpy(ret, str, size);
 394     }
 395
 396     return ret;
 397 }