1 /*
2 * Copyright 2008 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 #include <stdio.h>
21
22 #define COBJMACROS
23
24 #include "windef.h"
25 #include "winbase.h"
26 #include "winuser.h"
27 #include "ole2.h"
28 #include "dispex.h"
29 #include "activscp.h"
30
31 #include "wine/unicode.h"
32 #include "wine/list.h"
33
34 typedef struct _script_ctx_t script_ctx_t;
35 typedef struct _exec_ctx_t exec_ctx_t;
36 typedef struct _dispex_prop_t dispex_prop_t;
37
38 typedef struct {
39 EXCEPINFO ei;
40 VARIANT var;
41 } jsexcept_t;
42
43 typedef struct {
44 void **blocks;
45 DWORD block_cnt;
46 DWORD last_block;
47 DWORD offset;
48 BOOL mark;
49 struct list custom_blocks;
50 } jsheap_t;
51
52 void jsheap_init(jsheap_t*);
53 void *jsheap_alloc(jsheap_t*,DWORD);
54 void *jsheap_grow(jsheap_t*,void*,DWORD,DWORD);
55 void jsheap_clear(jsheap_t*);
56 void jsheap_free(jsheap_t*);
57 jsheap_t *jsheap_mark(jsheap_t*);
58
59 typedef struct DispatchEx DispatchEx;
60
61 #define PROPF_ARGMASK 0x00ff
62 #define PROPF_METHOD 0x0100
63 #define PROPF_ENUM 0x0200
64 #define PROPF_CONSTR 0x0400
65
66 typedef enum {
67 JSCLASS_NONE,
68 JSCLASS_ARRAY,
69 JSCLASS_BOOLEAN,
70 JSCLASS_DATE,
71 JSCLASS_FUNCTION,
72 JSCLASS_GLOBAL,
73 JSCLASS_MATH,
74 JSCLASS_NUMBER,
75 JSCLASS_OBJECT,
76 JSCLASS_REGEXP,
77 JSCLASS_STRING
78 } jsclass_t;
79
80 typedef HRESULT (*builtin_invoke_t)(DispatchEx*,LCID,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
81
82 typedef struct {
83 const WCHAR *name;
84 builtin_invoke_t invoke;
85 DWORD flags;
86 } builtin_prop_t;
87
88 typedef struct {
89 jsclass_t class;
90 builtin_prop_t value_prop;
91 DWORD props_cnt;
92 const builtin_prop_t *props;
93 void (*destructor)(DispatchEx*);
94 void (*on_put)(DispatchEx*,const WCHAR*);
95 } builtin_info_t;
96
97 struct DispatchEx {
98 const IDispatchExVtbl *lpIDispatchExVtbl;
99
100 LONG ref;
101
102 DWORD buf_size;
103 DWORD prop_cnt;
104 dispex_prop_t *props;
105 script_ctx_t *ctx;
106
107 DispatchEx *prototype;
108
109 const builtin_info_t *builtin_info;
110 };
111
112 #define _IDispatchEx_(x) ((IDispatchEx*) &(x)->lpIDispatchExVtbl)
113
114 static inline void jsdisp_release(DispatchEx *jsdisp)
115 {
116 IDispatchEx_Release(_IDispatchEx_(jsdisp));
117 }
118
119 HRESULT create_dispex(script_ctx_t*,const builtin_info_t*,DispatchEx*,DispatchEx**);
120 HRESULT init_dispex(DispatchEx*,script_ctx_t*,const builtin_info_t*,DispatchEx*);
121 HRESULT init_dispex_from_constr(DispatchEx*,script_ctx_t*,const builtin_info_t*,DispatchEx*);
122 DispatchEx *iface_to_jsdisp(IUnknown*);
123
124 HRESULT disp_call(IDispatch*,DISPID,LCID,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
125 HRESULT jsdisp_call_value(DispatchEx*,LCID,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
126 HRESULT disp_propget(IDispatch*,DISPID,LCID,VARIANT*,jsexcept_t*,IServiceProvider*);
127 HRESULT disp_propput(IDispatch*,DISPID,LCID,VARIANT*,jsexcept_t*,IServiceProvider*);
128 HRESULT jsdisp_propget(DispatchEx*,DISPID,LCID,VARIANT*,jsexcept_t*,IServiceProvider*);
129 HRESULT jsdisp_propput_name(DispatchEx*,const WCHAR*,LCID,VARIANT*,jsexcept_t*,IServiceProvider*);
130 HRESULT jsdisp_propput_idx(DispatchEx*,DWORD,LCID,VARIANT*,jsexcept_t*,IServiceProvider*);
131 HRESULT jsdisp_propget_name(DispatchEx*,LPCWSTR,LCID,VARIANT*,jsexcept_t*,IServiceProvider*);
132 HRESULT jsdisp_propget_idx(DispatchEx*,DWORD,LCID,VARIANT*,jsexcept_t*,IServiceProvider*);
133 HRESULT jsdisp_get_id(DispatchEx*,const WCHAR*,DWORD,DISPID*);
134
135 HRESULT create_builtin_function(script_ctx_t*,builtin_invoke_t,const builtin_info_t*,DWORD,
136 DispatchEx*,DispatchEx**);
137 HRESULT Function_value(DispatchEx*,LCID,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
138
139
140 HRESULT create_object(script_ctx_t*,DispatchEx*,DispatchEx**);
141 HRESULT create_math(script_ctx_t*,DispatchEx**);
142 HRESULT create_array(script_ctx_t*,DWORD,DispatchEx**);
143 HRESULT create_regexp_str(script_ctx_t*,const WCHAR*,DWORD,const WCHAR*,DWORD,DispatchEx**);
144 HRESULT create_string(script_ctx_t*,const WCHAR*,DWORD,DispatchEx**);
145 HRESULT create_bool(script_ctx_t*,VARIANT_BOOL,DispatchEx**);
146 HRESULT create_number(script_ctx_t*,VARIANT*,DispatchEx**);
147
148 HRESULT to_primitive(script_ctx_t*,VARIANT*,jsexcept_t*,VARIANT*);
149 HRESULT to_boolean(VARIANT*,VARIANT_BOOL*);
150 HRESULT to_number(script_ctx_t*,VARIANT*,jsexcept_t*,VARIANT*);
151 HRESULT to_integer(script_ctx_t*,VARIANT*,jsexcept_t*,VARIANT*);
152 HRESULT to_int32(script_ctx_t*,VARIANT*,jsexcept_t*,INT*);
153 HRESULT to_uint32(script_ctx_t*,VARIANT*,jsexcept_t*,DWORD*);
154 HRESULT to_string(script_ctx_t*,VARIANT*,jsexcept_t*,BSTR*);
155 HRESULT to_object(exec_ctx_t*,VARIANT*,IDispatch**);
156
157 typedef struct named_item_t {
158 IDispatch *disp;
159 DWORD flags;
160 LPWSTR name;
161
162 struct named_item_t *next;
163 } named_item_t;
164
165 struct _script_ctx_t {
166 LONG ref;
167
168 SCRIPTSTATE state;
169 exec_ctx_t *exec_ctx;
170 named_item_t *named_items;
171 IActiveScriptSite *site;
172 LCID lcid;
173
174 jsheap_t tmp_heap;
175
176 DispatchEx *script_disp;
177 DispatchEx *global;
178 DispatchEx *function_constr;
179 DispatchEx *array_constr;
180 DispatchEx *bool_constr;
181 DispatchEx *date_constr;
182 DispatchEx *number_constr;
183 DispatchEx *object_constr;
184 DispatchEx *regexp_constr;
185 DispatchEx *string_constr;
186 };
187
188 void script_release(script_ctx_t*);
189
190 static inline void script_addref(script_ctx_t *ctx)
191 {
192 ctx->ref++;
193 }
194
195 HRESULT init_global(script_ctx_t*);
196 HRESULT init_function_constr(script_ctx_t*);
197
198 HRESULT create_array_constr(script_ctx_t*,DispatchEx**);
199 HRESULT create_bool_constr(script_ctx_t*,DispatchEx**);
200 HRESULT create_date_constr(script_ctx_t*,DispatchEx**);
201 HRESULT create_number_constr(script_ctx_t*,DispatchEx**);
202 HRESULT create_object_constr(script_ctx_t*,DispatchEx**);
203 HRESULT create_regexp_constr(script_ctx_t*,DispatchEx**);
204 HRESULT create_string_constr(script_ctx_t*,DispatchEx**);
205
206 typedef struct {
207 const WCHAR *str;
208 DWORD len;
209 } match_result_t;
210
211 HRESULT regexp_match_next(DispatchEx*,BOOL,const WCHAR*,DWORD,const WCHAR**,match_result_t**,
212 DWORD*,DWORD*,match_result_t*);
213 HRESULT regexp_match(DispatchEx*,const WCHAR*,DWORD,BOOL,match_result_t**,DWORD*);
214
215 static inline VARIANT *get_arg(DISPPARAMS *dp, DWORD i)
216 {
217 return dp->rgvarg + dp->cArgs-i-1;
218 }
219
220 static inline DWORD arg_cnt(const DISPPARAMS *dp)
221 {
222 return dp->cArgs - dp->cNamedArgs;
223 }
224
225 static inline BOOL is_class(DispatchEx *jsdisp, jsclass_t class)
226 {
227 return jsdisp->builtin_info->class == class;
228 }
229
230 static inline BOOL is_num_vt(enum VARENUM vt)
231 {
232 return vt == VT_I4 || vt == VT_R8;
233 }
234
235 static inline DOUBLE num_val(const VARIANT *v)
236 {
237 return V_VT(v) == VT_I4 ? V_I4(v) : V_R8(v);
238 }
239
240 static inline void num_set_val(VARIANT *v, DOUBLE d)
241 {
242 if(d == (DOUBLE)(INT)d) {
243 V_VT(v) = VT_I4;
244 V_I4(v) = d;
245 }else {
246 V_VT(v) = VT_R8;
247 V_R8(v) = d;
248 }
249 }
250
251 static inline void num_set_nan(VARIANT *v)
252 {
253 V_VT(v) = VT_R8;
254 #ifdef NAN
255 V_R8(v) = NAN;
256 #else
257 V_UI8(v) = (ULONGLONG)0x7ff80000<<32;
258 #endif
259 }
260
261 static inline DOUBLE ret_nan()
262 {
263 VARIANT v;
264 num_set_nan(&v);
265 return V_R8(&v);
266 }
267
268 static inline void num_set_inf(VARIANT *v, BOOL positive)
269 {
270 V_VT(v) = VT_R8;
271 #ifdef INFINITY
272 V_R8(v) = positive ? INFINITY : -INFINITY;
273 #else
274 V_UI8(v) = (ULONGLONG)0x7ff00000<<32;
275 if(!positive)
276 V_R8(v) = -V_R8(v);
277 #endif
278 }
279
280 const char *debugstr_variant(const VARIANT*);
281
282 HRESULT WINAPI JScriptFactory_CreateInstance(IClassFactory*,IUnknown*,REFIID,void**);
283
284 extern LONG module_ref;
285
286 static inline void lock_module(void)
287 {
288 InterlockedIncrement(&module_ref);
289 }
290
291 static inline void unlock_module(void)
292 {
293 InterlockedDecrement(&module_ref);
294 }
295
296 static inline void *heap_alloc(size_t len)
297 {
298 return HeapAlloc(GetProcessHeap(), 0, len);
299 }
300
301 static inline void *heap_alloc_zero(size_t len)
302 {
303 return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
304 }
305
306 static inline void *heap_realloc(void *mem, size_t len)
307 {
308 return HeapReAlloc(GetProcessHeap(), 0, mem, len);
309 }
310
311 static inline BOOL heap_free(void *mem)
312 {
313 return HeapFree(GetProcessHeap(), 0, mem);
314 }
315
316 static inline LPWSTR heap_strdupW(LPCWSTR str)
317 {
318 LPWSTR ret = NULL;
319
320 if(str) {
321 DWORD size;
322
323 size = (strlenW(str)+1)*sizeof(WCHAR);
324 ret = heap_alloc(size);
325 memcpy(ret, str, size);
326 }
327
328 return ret;
329 }
330
331 #define DEFINE_THIS(cls,ifc,iface) ((cls*)((BYTE*)(iface)-offsetof(cls,lp ## ifc ## Vtbl)))
332
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