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,DWORD,DispatchEx*,DispatchEx**);
136
137 HRESULT create_object(script_ctx_t*,DispatchEx*,DispatchEx**);
138 HRESULT create_math(script_ctx_t*,DispatchEx**);
139 HRESULT create_array(script_ctx_t*,DWORD,DispatchEx**);
140 HRESULT create_regexp_str(script_ctx_t*,const WCHAR*,DWORD,const WCHAR*,DWORD,DispatchEx**);
141 HRESULT create_string(script_ctx_t*,const WCHAR*,DWORD,DispatchEx**);
142 HRESULT create_bool(script_ctx_t*,VARIANT_BOOL,DispatchEx**);
143 HRESULT create_number(script_ctx_t*,VARIANT*,DispatchEx**);
144
145 HRESULT to_primitive(script_ctx_t*,VARIANT*,jsexcept_t*,VARIANT*);
146 HRESULT to_boolean(VARIANT*,VARIANT_BOOL*);
147 HRESULT to_number(script_ctx_t*,VARIANT*,jsexcept_t*,VARIANT*);
148 HRESULT to_integer(script_ctx_t*,VARIANT*,jsexcept_t*,VARIANT*);
149 HRESULT to_int32(script_ctx_t*,VARIANT*,jsexcept_t*,INT*);
150 HRESULT to_uint32(script_ctx_t*,VARIANT*,jsexcept_t*,DWORD*);
151 HRESULT to_string(script_ctx_t*,VARIANT*,jsexcept_t*,BSTR*);
152 HRESULT to_object(exec_ctx_t*,VARIANT*,IDispatch**);
153
154 typedef struct named_item_t {
155 IDispatch *disp;
156 DWORD flags;
157 LPWSTR name;
158
159 struct named_item_t *next;
160 } named_item_t;
161
162 struct _script_ctx_t {
163 LONG ref;
164
165 SCRIPTSTATE state;
166 exec_ctx_t *exec_ctx;
167 named_item_t *named_items;
168 IActiveScriptSite *site;
169 LCID lcid;
170
171 jsheap_t tmp_heap;
172
173 DispatchEx *script_disp;
174 DispatchEx *global;
175 DispatchEx *function_constr;
176 DispatchEx *array_constr;
177 DispatchEx *bool_constr;
178 DispatchEx *date_constr;
179 DispatchEx *number_constr;
180 DispatchEx *object_constr;
181 DispatchEx *regexp_constr;
182 DispatchEx *string_constr;
183 };
184
185 void script_release(script_ctx_t*);
186
187 static inline void script_addref(script_ctx_t *ctx)
188 {
189 ctx->ref++;
190 }
191
192 HRESULT init_global(script_ctx_t*);
193 HRESULT init_function_constr(script_ctx_t*);
194
195 HRESULT create_array_constr(script_ctx_t*,DispatchEx**);
196 HRESULT create_bool_constr(script_ctx_t*,DispatchEx**);
197 HRESULT create_date_constr(script_ctx_t*,DispatchEx**);
198 HRESULT create_number_constr(script_ctx_t*,DispatchEx**);
199 HRESULT create_object_constr(script_ctx_t*,DispatchEx**);
200 HRESULT create_regexp_constr(script_ctx_t*,DispatchEx**);
201 HRESULT create_string_constr(script_ctx_t*,DispatchEx**);
202
203 typedef struct {
204 const WCHAR *str;
205 DWORD len;
206 } match_result_t;
207
208 HRESULT regexp_match_next(DispatchEx*,BOOL,const WCHAR*,DWORD,const WCHAR**,match_result_t**,
209 DWORD*,DWORD*,match_result_t*);
210 HRESULT regexp_match(DispatchEx*,const WCHAR*,DWORD,BOOL,match_result_t**,DWORD*);
211
212 static inline VARIANT *get_arg(DISPPARAMS *dp, DWORD i)
213 {
214 return dp->rgvarg + dp->cArgs-i-1;
215 }
216
217 static inline DWORD arg_cnt(const DISPPARAMS *dp)
218 {
219 return dp->cArgs - dp->cNamedArgs;
220 }
221
222 static inline BOOL is_class(DispatchEx *jsdisp, jsclass_t class)
223 {
224 return jsdisp->builtin_info->class == class;
225 }
226
227 static inline BOOL is_num_vt(enum VARENUM vt)
228 {
229 return vt == VT_I4 || vt == VT_R8;
230 }
231
232 static inline DOUBLE num_val(const VARIANT *v)
233 {
234 return V_VT(v) == VT_I4 ? V_I4(v) : V_R8(v);
235 }
236
237 static inline void num_set_val(VARIANT *v, DOUBLE d)
238 {
239 if(d == (DOUBLE)(INT)d) {
240 V_VT(v) = VT_I4;
241 V_I4(v) = d;
242 }else {
243 V_VT(v) = VT_R8;
244 V_R8(v) = d;
245 }
246 }
247
248 static inline void num_set_nan(VARIANT *v)
249 {
250 V_VT(v) = VT_R8;
251 #ifdef NAN
252 V_R8(v) = NAN;
253 #else
254 V_UI8(v) = (ULONGLONG)0x7ff80000<<32;
255 #endif
256 }
257
258 static inline DOUBLE ret_nan()
259 {
260 VARIANT v;
261 num_set_nan(&v);
262 return V_R8(&v);
263 }
264
265 static inline void num_set_inf(VARIANT *v, BOOL positive)
266 {
267 V_VT(v) = VT_R8;
268 #ifdef INFINITY
269 V_R8(v) = positive ? INFINITY : -INFINITY;
270 #else
271 V_UI8(v) = (ULONGLONG)0x7ff00000<<32;
272 if(!positive)
273 V_R8(v) = -V_R8(v);
274 #endif
275 }
276
277 const char *debugstr_variant(const VARIANT*);
278
279 HRESULT WINAPI JScriptFactory_CreateInstance(IClassFactory*,IUnknown*,REFIID,void**);
280
281 extern LONG module_ref;
282
283 static inline void lock_module(void)
284 {
285 InterlockedIncrement(&module_ref);
286 }
287
288 static inline void unlock_module(void)
289 {
290 InterlockedDecrement(&module_ref);
291 }
292
293 static inline void *heap_alloc(size_t len)
294 {
295 return HeapAlloc(GetProcessHeap(), 0, len);
296 }
297
298 static inline void *heap_alloc_zero(size_t len)
299 {
300 return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
301 }
302
303 static inline void *heap_realloc(void *mem, size_t len)
304 {
305 return HeapReAlloc(GetProcessHeap(), 0, mem, len);
306 }
307
308 static inline BOOL heap_free(void *mem)
309 {
310 return HeapFree(GetProcessHeap(), 0, mem);
311 }
312
313 static inline LPWSTR heap_strdupW(LPCWSTR str)
314 {
315 LPWSTR ret = NULL;
316
317 if(str) {
318 DWORD size;
319
320 size = (strlenW(str)+1)*sizeof(WCHAR);
321 ret = heap_alloc(size);
322 memcpy(ret, str, size);
323 }
324
325 return ret;
326 }
327
328 #define DEFINE_THIS(cls,ifc,iface) ((cls*)((BYTE*)(iface)-offsetof(cls,lp ## ifc ## Vtbl)))
329
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