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
  50 typedef struct named_item_t {
  51     IDispatch *disp;
  52     DWORD flags;
  53     LPWSTR name;
  54
  55     struct list entry;
  56 } named_item_t;
  57
  58 typedef enum {
  59     VBDISP_CALLGET,
  60     VBDISP_LET,
  61     VBDISP_SET,
  62     VBDISP_ANY
  63 } vbdisp_invoke_type_t;
  64
  65 typedef struct {
  66     const WCHAR *name;
  67     BOOL is_public;
  68     function_t *entries[VBDISP_ANY];
  69 } vbdisp_funcprop_desc_t;
  70
  71 typedef struct _class_desc_t {
  72     const WCHAR *name;
  73     script_ctx_t *ctx;
  74     unsigned func_cnt;
  75     vbdisp_funcprop_desc_t *funcs;
  76     struct _class_desc_t *next;
  77 } class_desc_t;
  78
  79 typedef struct {
  80     IDispatchEx IDispatchEx_iface;
  81
  82     LONG ref;
  83
  84     const class_desc_t *desc;
  85 } vbdisp_t;
  86
  87 HRESULT create_vbdisp(const class_desc_t*,vbdisp_t**);
  88 HRESULT disp_get_id(IDispatch*,BSTR,BOOL,DISPID*);
  89 HRESULT disp_call(script_ctx_t*,IDispatch*,DISPID,DISPPARAMS*,VARIANT*);
  90 HRESULT disp_propput(script_ctx_t*,IDispatch*,DISPID,VARIANT*);
  91
  92 static inline unsigned arg_cnt(const DISPPARAMS *dp)
  93 {
  94     return dp->cArgs - dp->cNamedArgs;
  95 }
  96
  97 static inline VARIANT *get_arg(DISPPARAMS *dp, DWORD i)
  98 {
  99     return dp->rgvarg + dp->cArgs-i-1;
 100 }
 101
 102 typedef struct _dynamic_var_t {
 103     struct _dynamic_var_t *next;
 104     VARIANT v;
 105     const WCHAR *name;
 106 } dynamic_var_t;
 107
 108 struct _script_ctx_t {
 109     IActiveScriptSite *site;
 110     LCID lcid;
 111
 112     IDispatch *host_global;
 113
 114     class_desc_t script_desc;
 115     vbdisp_t *script_obj;
 116
 117     dynamic_var_t *global_vars;
 118     function_t *global_funcs;
 119     class_desc_t *classes;
 120
 121     struct list code_list;
 122     struct list named_items;
 123 };
 124
 125 HRESULT init_global(script_ctx_t*);
 126
 127 typedef enum {
 128     ARG_NONE = 0,
 129     ARG_STR,
 130     ARG_BSTR,
 131     ARG_INT,
 132     ARG_UINT,
 133     ARG_ADDR,
 134     ARG_DOUBLE
 135 } instr_arg_type_t;
 136
 137 #define OP_LIST                                   \
 138     X(add,            1, 0,           0)          \
 139     X(and,            1, 0,           0)          \
 140     X(assign_ident,   1, ARG_BSTR,    0)          \
 141     X(assign_member,  1, ARG_BSTR,    0)          \
 142     X(bool,           1, ARG_INT,     0)          \
 143     X(concat,         1, 0,           0)          \
 144     X(div,            1, 0,           0)          \
 145     X(double,         1, ARG_DOUBLE,  0)          \
 146     X(empty,          1, 0,           0)          \
 147     X(equal,          1, 0,           0)          \
 148     X(eqv,            1, 0,           0)          \
 149     X(exp,            1, 0,           0)          \
 150     X(icall,          1, ARG_BSTR,    ARG_UINT)   \
 151     X(icallv,         1, ARG_BSTR,    ARG_UINT)   \
 152     X(idiv,           1, 0,           0)          \
 153     X(imp,            1, 0,           0)          \
 154     X(jmp,            0, ARG_ADDR,    0)          \
 155     X(jmp_false,      0, ARG_ADDR,    0)          \
 156     X(long,           1, ARG_INT,     0)          \
 157     X(mcall,          1, ARG_BSTR,    ARG_UINT)   \
 158     X(mcallv,         1, ARG_BSTR,    ARG_UINT)   \
 159     X(mod,            1, 0,           0)          \
 160     X(mul,            1, 0,           0)          \
 161     X(neg,            1, 0,           0)          \
 162     X(nequal,         1, 0,           0)          \
 163     X(new,            1, ARG_STR,     0)          \
 164     X(not,            1, 0,           0)          \
 165     X(nothing,        1, 0,           0)          \
 166     X(null,           1, 0,           0)          \
 167     X(or,             1, 0,           0)          \
 168     X(ret,            0, 0,           0)          \
 169     X(set_ident,      1, ARG_BSTR,    0)          \
 170     X(set_member,     1, ARG_BSTR,    0)          \
 171     X(short,          1, ARG_INT,     0)          \
 172     X(stop,           1, 0,           0)          \
 173     X(string,         1, ARG_STR,     0)          \
 174     X(sub,            1, 0,           0)          \
 175     X(xor,            1, 0,           0)
 176
 177 typedef enum {
 178 #define X(x,n,a,b) OP_##x,
 179 OP_LIST
 180 #undef X
 181     OP_LAST
 182 } vbsop_t;
 183
 184 typedef union {
 185     const WCHAR *str;
 186     BSTR bstr;
 187     unsigned uint;
 188     LONG lng;
 189     double *dbl;
 190 } instr_arg_t;
 191
 192 typedef struct {
 193     vbsop_t op;
 194     instr_arg_t arg1;
 195     instr_arg_t arg2;
 196 } instr_t;
 197
 198 typedef struct {
 199     const WCHAR *name;
 200     BOOL by_ref;
 201 } arg_desc_t;
 202
 203 typedef enum {
 204     FUNC_GLOBAL,
 205     FUNC_FUNCTION,
 206     FUNC_SUB
 207 } function_type_t;
 208
 209 typedef struct {
 210     const WCHAR *name;
 211 } var_desc_t;
 212
 213 struct _function_t {
 214     function_type_t type;
 215     const WCHAR *name;
 216     BOOL is_public;
 217     arg_desc_t *args;
 218     unsigned arg_cnt;
 219     var_desc_t *vars;
 220     unsigned var_cnt;
 221     unsigned code_off;
 222     vbscode_t *code_ctx;
 223     function_t *next;
 224 };
 225
 226 struct _vbscode_t {
 227     instr_t *instrs;
 228     WCHAR *source;
 229
 230     BOOL option_explicit;
 231
 232     BOOL global_executed;
 233     function_t global_code;
 234
 235     BSTR *bstr_pool;
 236     unsigned bstr_pool_size;
 237     unsigned bstr_cnt;
 238     vbsheap_t heap;
 239
 240     struct list entry;
 241 };
 242
 243 void release_vbscode(vbscode_t*) DECLSPEC_HIDDEN;
 244 HRESULT compile_script(script_ctx_t*,const WCHAR*,vbscode_t**) DECLSPEC_HIDDEN;
 245 HRESULT exec_script(script_ctx_t*,function_t*,IDispatch*,DISPPARAMS*,VARIANT*) DECLSPEC_HIDDEN;
 246
 247 HRESULT WINAPI VBScriptFactory_CreateInstance(IClassFactory*,IUnknown*,REFIID,void**);
 248
 249 const char *debugstr_variant(const VARIANT*) DECLSPEC_HIDDEN;
 250
 251 static inline void *heap_alloc(size_t len)
 252 {
 253     return HeapAlloc(GetProcessHeap(), 0, len);
 254 }
 255
 256 static inline void *heap_alloc_zero(size_t len)
 257 {
 258     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 259 }
 260
 261 static inline void *heap_realloc(void *mem, size_t len)
 262 {
 263     return HeapReAlloc(GetProcessHeap(), 0, mem, len);
 264 }
 265
 266 static inline BOOL heap_free(void *mem)
 267 {
 268     return HeapFree(GetProcessHeap(), 0, mem);
 269 }
 270
 271 static inline LPWSTR heap_strdupW(LPCWSTR str)
 272 {
 273     LPWSTR ret = NULL;
 274
 275     if(str) {
 276         DWORD size;
 277
 278         size = (strlenW(str)+1)*sizeof(WCHAR);
 279         ret = heap_alloc(size);
 280         if(ret)
 281             memcpy(ret, str, size);
 282     }
 283
 284     return ret;
 285 }