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 struct _class_desc_t {
  59     const WCHAR *name;
  60     script_ctx_t *ctx;
  61     struct _class_desc_t *next;
  62 } class_desc_t;
  63
  64 typedef struct {
  65     IDispatchEx IDispatchEx_iface;
  66
  67     LONG ref;
  68 } vbdisp_t;
  69
  70 typedef enum {
  71     VBDISP_CALLGET,
  72     VBDISP_LET,
  73     VBDISP_SET,
  74     VBDISP_ANY
  75 } vbdisp_invoke_type_t;
  76
  77 HRESULT disp_get_id(IDispatch*,BSTR,DISPID*);
  78 HRESULT disp_call(script_ctx_t*,IDispatch*,DISPID,DISPPARAMS*,VARIANT*);
  79 HRESULT disp_propput(script_ctx_t*,IDispatch*,DISPID,VARIANT*);
  80
  81 static inline unsigned arg_cnt(const DISPPARAMS *dp)
  82 {
  83     return dp->cArgs - dp->cNamedArgs;
  84 }
  85
  86 static inline VARIANT *get_arg(DISPPARAMS *dp, DWORD i)
  87 {
  88     return dp->rgvarg + dp->cArgs-i-1;
  89 }
  90
  91 typedef struct _dynamic_var_t {
  92     struct _dynamic_var_t *next;
  93     VARIANT v;
  94     const WCHAR *name;
  95 } dynamic_var_t;
  96
  97 struct _script_ctx_t {
  98     IActiveScriptSite *site;
  99     LCID lcid;
 100
 101     IDispatch *host_global;
 102
 103     vbdisp_t *script_obj;
 104
 105     dynamic_var_t *global_vars;
 106     function_t *global_funcs;
 107     class_desc_t *classes;
 108
 109     struct list code_list;
 110     struct list named_items;
 111 };
 112
 113 HRESULT init_global(script_ctx_t*);
 114
 115 typedef enum {
 116     ARG_NONE = 0,
 117     ARG_STR,
 118     ARG_BSTR,
 119     ARG_INT,
 120     ARG_UINT,
 121     ARG_ADDR,
 122     ARG_DOUBLE
 123 } instr_arg_type_t;
 124
 125 #define OP_LIST                                   \
 126     X(add,            1, 0,           0)          \
 127     X(and,            1, 0,           0)          \
 128     X(assign_ident,   1, ARG_BSTR,    0)          \
 129     X(assign_member,  1, ARG_BSTR,    0)          \
 130     X(bool,           1, ARG_INT,     0)          \
 131     X(concat,         1, 0,           0)          \
 132     X(div,            1, 0,           0)          \
 133     X(double,         1, ARG_DOUBLE,  0)          \
 134     X(empty,          1, 0,           0)          \
 135     X(equal,          1, 0,           0)          \
 136     X(eqv,            1, 0,           0)          \
 137     X(exp,            1, 0,           0)          \
 138     X(icall,          1, ARG_BSTR,    ARG_UINT)   \
 139     X(icallv,         1, ARG_BSTR,    ARG_UINT)   \
 140     X(idiv,           1, 0,           0)          \
 141     X(imp,            1, 0,           0)          \
 142     X(jmp,            0, ARG_ADDR,    0)          \
 143     X(jmp_false,      0, ARG_ADDR,    0)          \
 144     X(long,           1, ARG_INT,     0)          \
 145     X(mod,            1, 0,           0)          \
 146     X(mul,            1, 0,           0)          \
 147     X(neg,            1, 0,           0)          \
 148     X(nequal,         1, 0,           0)          \
 149     X(not,            1, 0,           0)          \
 150     X(null,           1, 0,           0)          \
 151     X(or,             1, 0,           0)          \
 152     X(ret,            0, 0,           0)          \
 153     X(short,          1, ARG_INT,     0)          \
 154     X(string,         1, ARG_STR,     0)          \
 155     X(sub,            1, 0,           0)          \
 156     X(xor,            1, 0,           0)
 157
 158 typedef enum {
 159 #define X(x,n,a,b) OP_##x,
 160 OP_LIST
 161 #undef X
 162     OP_LAST
 163 } vbsop_t;
 164
 165 typedef union {
 166     const WCHAR *str;
 167     BSTR bstr;
 168     unsigned uint;
 169     LONG lng;
 170     double *dbl;
 171 } instr_arg_t;
 172
 173 typedef struct {
 174     vbsop_t op;
 175     instr_arg_t arg1;
 176     instr_arg_t arg2;
 177 } instr_t;
 178
 179 typedef struct {
 180     const WCHAR *name;
 181     BOOL by_ref;
 182 } arg_desc_t;
 183
 184 typedef enum {
 185     FUNC_GLOBAL,
 186     FUNC_FUNCTION,
 187     FUNC_SUB
 188 } function_type_t;
 189
 190 typedef struct {
 191     const WCHAR *name;
 192 } var_desc_t;
 193
 194 struct _function_t {
 195     function_type_t type;
 196     const WCHAR *name;
 197     arg_desc_t *args;
 198     unsigned arg_cnt;
 199     var_desc_t *vars;
 200     unsigned var_cnt;
 201     unsigned code_off;
 202     vbscode_t *code_ctx;
 203     function_t *next;
 204 };
 205
 206 struct _vbscode_t {
 207     instr_t *instrs;
 208     WCHAR *source;
 209
 210     BOOL option_explicit;
 211
 212     BOOL global_executed;
 213     function_t global_code;
 214
 215     BSTR *bstr_pool;
 216     unsigned bstr_pool_size;
 217     unsigned bstr_cnt;
 218     vbsheap_t heap;
 219
 220     struct list entry;
 221 };
 222
 223 void release_vbscode(vbscode_t*) DECLSPEC_HIDDEN;
 224 HRESULT compile_script(script_ctx_t*,const WCHAR*,vbscode_t**) DECLSPEC_HIDDEN;
 225 HRESULT exec_script(script_ctx_t*,function_t*,DISPPARAMS*,VARIANT*) DECLSPEC_HIDDEN;
 226
 227 HRESULT WINAPI VBScriptFactory_CreateInstance(IClassFactory*,IUnknown*,REFIID,void**);
 228
 229 const char *debugstr_variant(const VARIANT*) DECLSPEC_HIDDEN;
 230
 231 static inline void *heap_alloc(size_t len)
 232 {
 233     return HeapAlloc(GetProcessHeap(), 0, len);
 234 }
 235
 236 static inline void *heap_alloc_zero(size_t len)
 237 {
 238     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 239 }
 240
 241 static inline void *heap_realloc(void *mem, size_t len)
 242 {
 243     return HeapReAlloc(GetProcessHeap(), 0, mem, len);
 244 }
 245
 246 static inline BOOL heap_free(void *mem)
 247 {
 248     return HeapFree(GetProcessHeap(), 0, mem);
 249 }
 250
 251 static inline LPWSTR heap_strdupW(LPCWSTR str)
 252 {
 253     LPWSTR ret = NULL;
 254
 255     if(str) {
 256         DWORD size;
 257
 258         size = (strlenW(str)+1)*sizeof(WCHAR);
 259         ret = heap_alloc(size);
 260         if(ret)
 261             memcpy(ret, str, size);
 262     }
 263
 264     return ret;
 265 }