dlls/jscript/jscript.h

   1 /*
   2  * Copyright 2008-2009 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 #include <stdint.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "ole2.h"
  29 #include "dispex.h"
  30 #include "activscp.h"
  31
  32 #include "resource.h"
  33
  34 #include "wine/list.h"
  35 #include "wine/rbtree.h"
  36
  37 /*
  38  * This is Wine jscript extension for ES5 compatible mode. Native IE9+ implements
  39  * a separated JavaScript enging in side MSHTML. We implement its features here
  40  * and enable it when HTML flag is specified in SCRIPTPROP_INVOKEVERSIONING property.
  41  */
  42 #define SCRIPTLANGUAGEVERSION_HTML 0x400
  43
  44 /*
  45  * This is Wine jscript extension for ES5 and ES6 compatible mode. Allowed only in HTML mode.
  46  */
  47 #define SCRIPTLANGUAGEVERSION_ES5  0x102
  48 #define SCRIPTLANGUAGEVERSION_ES6  0x103
  49
  50 typedef struct _jsval_t jsval_t;
  51 typedef struct _jsstr_t jsstr_t;
  52 typedef struct _jsexcept_t jsexcept_t;
  53 typedef struct _script_ctx_t script_ctx_t;
  54 typedef struct _dispex_prop_t dispex_prop_t;
  55 typedef struct _property_desc_t property_desc_t;
  56
  57 typedef struct {
  58     void **blocks;
  59     DWORD block_cnt;
  60     DWORD last_block;
  61     DWORD offset;
  62     BOOL mark;
  63     struct list custom_blocks;
  64 } heap_pool_t;
  65
  66 void heap_pool_init(heap_pool_t*);
  67 void *heap_pool_alloc(heap_pool_t*,DWORD) __WINE_ALLOC_SIZE(2);
  68 void *heap_pool_grow(heap_pool_t*,void*,DWORD,DWORD);
  69 void heap_pool_clear(heap_pool_t*);
  70 void heap_pool_free(heap_pool_t*);
  71 heap_pool_t *heap_pool_mark(heap_pool_t*);
  72
  73 typedef struct jsdisp_t jsdisp_t;
  74
  75 extern HINSTANCE jscript_hinstance ;
  76 HRESULT get_dispatch_typeinfo(ITypeInfo**);
  77
  78 #define PROPF_ARGMASK       0x00ff
  79 #define PROPF_METHOD        0x0100
  80 #define PROPF_CONSTR        0x0200
  81
  82 #define PROPF_ENUMERABLE    0x0400
  83 #define PROPF_WRITABLE      0x0800
  84 #define PROPF_CONFIGURABLE  0x1000
  85 #define PROPF_ALL           (PROPF_ENUMERABLE | PROPF_WRITABLE | PROPF_CONFIGURABLE)
  86
  87 #define PROPF_VERSION_MASK  0x01ff0000
  88 #define PROPF_VERSION_SHIFT 16
  89 #define PROPF_HTML          (SCRIPTLANGUAGEVERSION_HTML << PROPF_VERSION_SHIFT)
  90 #define PROPF_ES5           ((SCRIPTLANGUAGEVERSION_HTML|SCRIPTLANGUAGEVERSION_ES5) << PROPF_VERSION_SHIFT)
  91 #define PROPF_ES6           ((SCRIPTLANGUAGEVERSION_HTML|SCRIPTLANGUAGEVERSION_ES6) << PROPF_VERSION_SHIFT)
  92
  93 /*
  94  * This is our internal dispatch flag informing calee that it's called directly from interpreter.
  95  * If calee is executed as interpreted function, we may let already running interpreter to take
  96  * of execution.
  97  */
  98 #define DISPATCH_JSCRIPT_CALLEREXECSSOURCE  0x8000
  99 #define DISPATCH_JSCRIPT_INTERNAL_MASK      DISPATCH_JSCRIPT_CALLEREXECSSOURCE
 100
 101 /* NOTE: Keep in sync with names in Object.toString implementation */
 102 typedef enum {
 103     JSCLASS_NONE,
 104     JSCLASS_ARRAY,
 105     JSCLASS_BOOLEAN,
 106     JSCLASS_DATE,
 107     JSCLASS_ENUMERATOR,
 108     JSCLASS_ERROR,
 109     JSCLASS_FUNCTION,
 110     JSCLASS_GLOBAL,
 111     JSCLASS_MATH,
 112     JSCLASS_NUMBER,
 113     JSCLASS_OBJECT,
 114     JSCLASS_REGEXP,
 115     JSCLASS_STRING,
 116     JSCLASS_ARGUMENTS,
 117     JSCLASS_VBARRAY,
 118     JSCLASS_JSON,
 119     JSCLASS_MAP,
 120     JSCLASS_SET,
 121     JSCLASS_WEAKMAP,
 122 } jsclass_t;
 123
 124 jsdisp_t *iface_to_jsdisp(IDispatch*);
 125
 126 typedef HRESULT (*builtin_invoke_t)(script_ctx_t*,jsval_t,WORD,unsigned,jsval_t*,jsval_t*);
 127 typedef HRESULT (*builtin_getter_t)(script_ctx_t*,jsdisp_t*,jsval_t*);
 128 typedef HRESULT (*builtin_setter_t)(script_ctx_t*,jsdisp_t*,jsval_t);
 129
 130 HRESULT builtin_set_const(script_ctx_t*,jsdisp_t*,jsval_t);
 131
 132 typedef struct named_item_t {
 133     jsdisp_t *script_obj;
 134     IDispatch *disp;
 135     unsigned ref;
 136     DWORD flags;
 137     LPWSTR name;
 138
 139     struct list entry;
 140 } named_item_t;
 141
 142 struct gc_ctx;
 143
 144 enum gc_traverse_op {
 145     GC_TRAVERSE_UNLINK,
 146     GC_TRAVERSE_SPECULATIVELY,
 147     GC_TRAVERSE
 148 };
 149
 150 HRESULT create_named_item_script_obj(script_ctx_t*,named_item_t*);
 151 named_item_t *lookup_named_item(script_ctx_t*,const WCHAR*,unsigned);
 152 void release_named_item(named_item_t*);
 153 HRESULT gc_run(script_ctx_t*);
 154 HRESULT gc_process_linked_obj(struct gc_ctx*,enum gc_traverse_op,jsdisp_t*,jsdisp_t*,void**);
 155 HRESULT gc_process_linked_val(struct gc_ctx*,enum gc_traverse_op,jsdisp_t*,jsval_t*);
 156
 157 typedef struct {
 158     const WCHAR *name;
 159     builtin_invoke_t invoke;
 160     DWORD flags;
 161     builtin_getter_t getter;
 162     builtin_setter_t setter;
 163 } builtin_prop_t;
 164
 165 typedef struct {
 166     jsclass_t class;
 167     builtin_invoke_t call;
 168     DWORD props_cnt;
 169     const builtin_prop_t *props;
 170     void (*destructor)(jsdisp_t*);
 171     void (*on_put)(jsdisp_t*,const WCHAR*);
 172     unsigned (*idx_length)(jsdisp_t*);
 173     HRESULT (*idx_get)(jsdisp_t*,unsigned,jsval_t*);
 174     HRESULT (*idx_put)(jsdisp_t*,unsigned,jsval_t);
 175     HRESULT (*gc_traverse)(struct gc_ctx*,enum gc_traverse_op,jsdisp_t*);
 176 } builtin_info_t;
 177
 178 struct jsdisp_t {
 179     IDispatchEx IDispatchEx_iface;
 180
 181     LONG ref;
 182
 183     BOOLEAN has_weak_refs;
 184     BOOLEAN extensible;
 185     BOOLEAN gc_marked;
 186
 187     DWORD buf_size;
 188     DWORD prop_cnt;
 189     dispex_prop_t *props;
 190     script_ctx_t *ctx;
 191
 192     jsdisp_t *prototype;
 193
 194     const builtin_info_t *builtin_info;
 195     struct list entry;
 196 };
 197
 198 static inline IDispatch *to_disp(jsdisp_t *jsdisp)
 199 {
 200     return (IDispatch*)&jsdisp->IDispatchEx_iface;
 201 }
 202
 203 jsdisp_t *as_jsdisp(IDispatch*);
 204 jsdisp_t *to_jsdisp(IDispatch*);
 205 void jsdisp_free(jsdisp_t*);
 206
 207 #ifndef TRACE_REFCNT
 208
 209 /*
 210  * We do a lot of refcount calls during script execution, so having an inline
 211  * version is a nice perf win. Define TRACE_REFCNT macro when debugging
 212  * refcount bugs to have traces. Also, since jsdisp_t is not thread safe anyways,
 213  * there is no point in using atomic operations.
 214  */
 215 static inline jsdisp_t *jsdisp_addref(jsdisp_t *jsdisp)
 216 {
 217     jsdisp->ref++;
 218     return jsdisp;
 219 }
 220
 221 static inline void jsdisp_release(jsdisp_t *jsdisp)
 222 {
 223     if(!--jsdisp->ref)
 224         jsdisp_free(jsdisp);
 225 }
 226
 227 #else
 228
 229 jsdisp_t *jsdisp_addref(jsdisp_t*);
 230 void jsdisp_release(jsdisp_t*);
 231
 232 #endif
 233
 234 enum jsdisp_enum_type {
 235     JSDISP_ENUM_ALL,
 236     JSDISP_ENUM_OWN,
 237     JSDISP_ENUM_OWN_ENUMERABLE
 238 };
 239
 240 HRESULT create_dispex(script_ctx_t*,const builtin_info_t*,jsdisp_t*,jsdisp_t**);
 241 HRESULT init_dispex(jsdisp_t*,script_ctx_t*,const builtin_info_t*,jsdisp_t*);
 242 HRESULT init_dispex_from_constr(jsdisp_t*,script_ctx_t*,const builtin_info_t*,jsdisp_t*);
 243
 244 HRESULT disp_call(script_ctx_t*,IDispatch*,DISPID,WORD,unsigned,jsval_t*,jsval_t*);
 245 HRESULT disp_call_name(script_ctx_t*,IDispatch*,const WCHAR*,WORD,unsigned,jsval_t*,jsval_t*);
 246 HRESULT disp_call_value_with_caller(script_ctx_t*,IDispatch*,jsval_t,WORD,unsigned,jsval_t*,jsval_t*,IServiceProvider*);
 247 HRESULT jsdisp_call_value(jsdisp_t*,jsval_t,WORD,unsigned,jsval_t*,jsval_t*);
 248 HRESULT jsdisp_call(jsdisp_t*,DISPID,WORD,unsigned,jsval_t*,jsval_t*);
 249 HRESULT jsdisp_call_name(jsdisp_t*,const WCHAR*,WORD,unsigned,jsval_t*,jsval_t*);
 250 HRESULT disp_propget(script_ctx_t*,IDispatch*,DISPID,jsval_t*);
 251 HRESULT disp_propput(script_ctx_t*,IDispatch*,DISPID,jsval_t);
 252 HRESULT disp_propput_name(script_ctx_t*,IDispatch*,const WCHAR*,jsval_t);
 253 HRESULT jsdisp_propget(jsdisp_t*,DISPID,jsval_t*);
 254 HRESULT jsdisp_propput(jsdisp_t*,const WCHAR*,DWORD,BOOL,jsval_t);
 255 HRESULT jsdisp_propput_name(jsdisp_t*,const WCHAR*,jsval_t);
 256 HRESULT jsdisp_propput_idx(jsdisp_t*,DWORD,jsval_t);
 257 HRESULT jsdisp_propget_name(jsdisp_t*,LPCWSTR,jsval_t*);
 258 HRESULT jsdisp_get_idx(jsdisp_t*,DWORD,jsval_t*);
 259 HRESULT jsdisp_get_id(jsdisp_t*,const WCHAR*,DWORD,DISPID*);
 260 HRESULT jsdisp_get_idx_id(jsdisp_t*,DWORD,DISPID*);
 261 HRESULT disp_delete(IDispatch*,DISPID,BOOL*);
 262 HRESULT disp_delete_name(script_ctx_t*,IDispatch*,jsstr_t*,BOOL*);
 263 HRESULT jsdisp_delete_idx(jsdisp_t*,DWORD);
 264 HRESULT jsdisp_get_own_property(jsdisp_t*,const WCHAR*,BOOL,property_desc_t*);
 265 HRESULT jsdisp_define_property(jsdisp_t*,const WCHAR*,property_desc_t*);
 266 HRESULT jsdisp_define_data_property(jsdisp_t*,const WCHAR*,unsigned,jsval_t);
 267 HRESULT jsdisp_next_prop(jsdisp_t*,DISPID,enum jsdisp_enum_type,DISPID*);
 268 HRESULT jsdisp_get_prop_name(jsdisp_t*,DISPID,jsstr_t**);
 269 HRESULT jsdisp_change_prototype(jsdisp_t*,jsdisp_t*);
 270 void jsdisp_freeze(jsdisp_t*,BOOL);
 271 BOOL jsdisp_is_frozen(jsdisp_t*,BOOL);
 272
 273 HRESULT create_builtin_function(script_ctx_t*,builtin_invoke_t,const WCHAR*,const builtin_info_t*,DWORD,
 274         jsdisp_t*,jsdisp_t**);
 275 HRESULT create_builtin_constructor(script_ctx_t*,builtin_invoke_t,const WCHAR*,const builtin_info_t*,DWORD,
 276         jsdisp_t*,jsdisp_t**);
 277 HRESULT Function_invoke(jsdisp_t*,jsval_t,WORD,unsigned,jsval_t*,jsval_t*);
 278
 279 HRESULT Function_value(script_ctx_t*,jsval_t,WORD,unsigned,jsval_t*,jsval_t*);
 280 HRESULT Function_get_value(script_ctx_t*,jsdisp_t*,jsval_t*);
 281 struct _function_code_t *Function_get_code(jsdisp_t*);
 282
 283 HRESULT throw_error(script_ctx_t*,HRESULT,const WCHAR*);
 284 jsdisp_t *create_builtin_error(script_ctx_t *ctx);
 285
 286 HRESULT create_object(script_ctx_t*,jsdisp_t*,jsdisp_t**);
 287 HRESULT create_math(script_ctx_t*,jsdisp_t**);
 288 HRESULT create_array(script_ctx_t*,DWORD,jsdisp_t**);
 289 HRESULT create_regexp(script_ctx_t*,jsstr_t*,DWORD,jsdisp_t**);
 290 HRESULT create_regexp_var(script_ctx_t*,jsval_t,jsval_t*,jsdisp_t**);
 291 HRESULT create_string(script_ctx_t*,jsstr_t*,jsdisp_t**);
 292 HRESULT create_bool(script_ctx_t*,BOOL,jsdisp_t**);
 293 HRESULT create_number(script_ctx_t*,double,jsdisp_t**);
 294 HRESULT create_vbarray(script_ctx_t*,SAFEARRAY*,jsdisp_t**);
 295 HRESULT create_json(script_ctx_t*,jsdisp_t**);
 296
 297 typedef enum {
 298     NO_HINT,
 299     HINT_STRING,
 300     HINT_NUMBER
 301 } hint_t;
 302
 303 HRESULT to_primitive(script_ctx_t*,jsval_t,jsval_t*, hint_t);
 304 HRESULT to_boolean(jsval_t,BOOL*);
 305 HRESULT to_number(script_ctx_t*,jsval_t,double*);
 306 HRESULT to_integer(script_ctx_t*,jsval_t,double*);
 307 HRESULT to_int32(script_ctx_t*,jsval_t,INT*);
 308 HRESULT to_long(script_ctx_t*,jsval_t,LONG*);
 309 HRESULT to_uint32(script_ctx_t*,jsval_t,UINT32*);
 310 HRESULT to_string(script_ctx_t*,jsval_t,jsstr_t**);
 311 HRESULT to_flat_string(script_ctx_t*,jsval_t,jsstr_t**,const WCHAR**);
 312 HRESULT to_object(script_ctx_t*,jsval_t,IDispatch**);
 313
 314 HRESULT jsval_strict_equal(jsval_t,jsval_t,BOOL*);
 315
 316 HRESULT variant_change_type(script_ctx_t*,VARIANT*,VARIANT*,VARTYPE);
 317 HRESULT variant_date_to_number(double,double*);
 318 HRESULT variant_date_to_string(script_ctx_t*,double,jsstr_t**);
 319
 320 HRESULT decode_source(WCHAR*);
 321
 322 HRESULT double_to_string(double,jsstr_t**);
 323 WCHAR *idx_to_str(DWORD,WCHAR*);
 324
 325 static inline BOOL is_digit(WCHAR c)
 326 {
 327     return '0' <= c && c <= '9';
 328 }
 329
 330 typedef struct _cc_var_t cc_var_t;
 331
 332 typedef struct {
 333     cc_var_t *vars;
 334 } cc_ctx_t;
 335
 336 void release_cc(cc_ctx_t*);
 337
 338 #define SP_CALLER_UNINITIALIZED ((IServiceProvider*)IntToPtr(-1))
 339
 340 typedef struct {
 341     IServiceProvider IServiceProvider_iface;
 342
 343     LONG ref;
 344
 345     script_ctx_t *ctx;
 346     IServiceProvider *caller;
 347 } JSCaller;
 348
 349 #include "jsval.h"
 350
 351 struct _property_desc_t {
 352     unsigned flags;
 353     unsigned mask;
 354     BOOL explicit_value;
 355     jsval_t value;
 356     BOOL explicit_getter;
 357     jsdisp_t *getter;
 358     BOOL explicit_setter;
 359     jsdisp_t *setter;
 360 };
 361
 362 typedef struct {
 363     unsigned index;
 364     unsigned length;
 365 } match_result_t;
 366
 367 struct weak_refs_entry {
 368     struct rb_entry entry;
 369     struct list list;
 370 };
 371
 372 struct _script_ctx_t {
 373     LONG ref;
 374
 375     SCRIPTSTATE state;
 376     IActiveScript *active_script;
 377
 378     struct _call_frame_t *call_ctx;
 379     struct list named_items;
 380     struct list objects;
 381     struct rb_tree weak_refs;
 382     IActiveScriptSite *site;
 383     IInternetHostSecurityManager *secmgr;
 384     DWORD safeopt;
 385     DWORD version;
 386     BOOL html_mode;
 387     LCID lcid;
 388     cc_ctx_t *cc;
 389     JSCaller *jscaller;
 390     jsexcept_t *ei;
 391
 392     heap_pool_t tmp_heap;
 393
 394     BOOL gc_is_unlinking;
 395     DWORD gc_last_tick;
 396
 397     jsval_t *stack;
 398     unsigned stack_top;
 399     jsval_t acc;
 400
 401     jsstr_t *last_match;
 402     match_result_t match_parens[9];
 403     DWORD last_match_index;
 404     DWORD last_match_length;
 405
 406     union {
 407         struct {
 408             jsdisp_t *global;
 409             jsdisp_t *function_constr;
 410             jsdisp_t *array_constr;
 411             jsdisp_t *bool_constr;
 412             jsdisp_t *date_constr;
 413             jsdisp_t *enumerator_constr;
 414             jsdisp_t *error_constr;
 415             jsdisp_t *eval_error_constr;
 416             jsdisp_t *range_error_constr;
 417             jsdisp_t *reference_error_constr;
 418             jsdisp_t *regexp_error_constr;
 419             jsdisp_t *syntax_error_constr;
 420             jsdisp_t *type_error_constr;
 421             jsdisp_t *uri_error_constr;
 422             jsdisp_t *number_constr;
 423             jsdisp_t *object_constr;
 424             jsdisp_t *object_prototype;
 425             jsdisp_t *regexp_constr;
 426             jsdisp_t *string_constr;
 427             jsdisp_t *vbarray_constr;
 428             jsdisp_t *map_prototype;
 429             jsdisp_t *set_prototype;
 430             jsdisp_t *weakmap_prototype;
 431         };
 432         jsdisp_t *global_objects[23];
 433     };
 434 };
 435 C_ASSERT(RTL_SIZEOF_THROUGH_FIELD(script_ctx_t, weakmap_prototype) == RTL_SIZEOF_THROUGH_FIELD(script_ctx_t, global_objects));
 436
 437 struct weakmap_entry {
 438     struct rb_entry entry;
 439     jsdisp_t *key;
 440     jsval_t value;
 441     jsdisp_t *weakmap;
 442     struct list weak_refs_entry;
 443 };
 444 void remove_weakmap_entry(struct weakmap_entry*);
 445
 446 void script_release(script_ctx_t*);
 447
 448 static inline void script_addref(script_ctx_t *ctx)
 449 {
 450     ctx->ref++;
 451 }
 452
 453 HRESULT init_global(script_ctx_t*);
 454 HRESULT init_function_constr(script_ctx_t*,jsdisp_t*);
 455 HRESULT create_object_prototype(script_ctx_t*,jsdisp_t**);
 456 HRESULT init_set_constructor(script_ctx_t*);
 457
 458 HRESULT create_activex_constr(script_ctx_t*,jsdisp_t**);
 459 HRESULT create_array_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**);
 460 HRESULT create_bool_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**);
 461 HRESULT create_date_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**);
 462 HRESULT init_error_constr(script_ctx_t*,jsdisp_t*);
 463 HRESULT create_enumerator_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**);
 464 HRESULT create_number_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**);
 465 HRESULT create_object_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**);
 466 HRESULT create_regexp_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**);
 467 HRESULT create_string_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**);
 468 HRESULT create_vbarray_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**);
 469
 470 IUnknown *create_ax_site(script_ctx_t*);
 471 HRESULT create_jscaller(script_ctx_t*);
 472
 473 #define REM_CHECK_GLOBAL   0x0001
 474 #define REM_RESET_INDEX    0x0002
 475 #define REM_NO_CTX_UPDATE  0x0004
 476 #define REM_ALLOC_RESULT   0x0008
 477 #define REM_NO_PARENS      0x0010
 478 struct match_state_t;
 479 HRESULT regexp_match_next(script_ctx_t*,jsdisp_t*,DWORD,jsstr_t*,struct match_state_t**);
 480 HRESULT parse_regexp_flags(const WCHAR*,DWORD,DWORD*);
 481 HRESULT regexp_string_match(script_ctx_t*,jsdisp_t*,jsstr_t*,jsval_t*);
 482
 483 BOOL bool_obj_value(jsdisp_t*);
 484 unsigned array_get_length(jsdisp_t*);
 485 HRESULT localize_number(script_ctx_t*,DOUBLE,BOOL,jsstr_t**);
 486
 487 BOOL is_builtin_eval_func(jsdisp_t*);
 488 HRESULT builtin_eval(script_ctx_t*,struct _call_frame_t*,WORD,unsigned,jsval_t*,jsval_t*);
 489 HRESULT JSGlobal_eval(script_ctx_t*,jsval_t,WORD,unsigned,jsval_t*,jsval_t*);
 490 HRESULT Object_get_proto_(script_ctx_t*,jsval_t,WORD,unsigned,jsval_t*,jsval_t*);
 491 HRESULT Object_set_proto_(script_ctx_t*,jsval_t,WORD,unsigned,jsval_t*,jsval_t*);
 492
 493 static inline BOOL is_class(jsdisp_t *jsdisp, jsclass_t class)
 494 {
 495     return jsdisp->builtin_info->class == class;
 496 }
 497
 498 static inline BOOL is_int32(double d)
 499 {
 500     return INT32_MIN <= d && d <= INT32_MAX && (double)(int)d == d;
 501 }
 502
 503 static inline DWORD make_grfdex(script_ctx_t *ctx, DWORD flags)
 504 {
 505     return ((ctx->version & 0xff) << 28) | flags;
 506 }
 507
 508 static inline HRESULT disp_call_value(script_ctx_t *ctx, IDispatch *disp, jsval_t vthis, WORD flags, unsigned argc,
 509         jsval_t *argv, jsval_t *r)
 510 {
 511     return disp_call_value_with_caller(ctx, disp, vthis, flags, argc, argv, r, &ctx->jscaller->IServiceProvider_iface);
 512 }
 513
 514 #define FACILITY_JSCRIPT 10
 515
 516 #define MAKE_JSERROR(code) MAKE_HRESULT(SEVERITY_ERROR, FACILITY_JSCRIPT, code)
 517
 518 #define JS_E_TO_PRIMITIVE            MAKE_JSERROR(IDS_TO_PRIMITIVE)
 519 #define JS_E_INVALIDARG              MAKE_JSERROR(IDS_INVALID_CALL_ARG)
 520 #define JS_E_SUBSCRIPT_OUT_OF_RANGE  MAKE_JSERROR(IDS_SUBSCRIPT_OUT_OF_RANGE)
 521 #define JS_E_STACK_OVERFLOW          MAKE_JSERROR(IDS_STACK_OVERFLOW)
 522 #define JS_E_OBJECT_REQUIRED         MAKE_JSERROR(IDS_OBJECT_REQUIRED)
 523 #define JS_E_CANNOT_CREATE_OBJ       MAKE_JSERROR(IDS_CREATE_OBJ_ERROR)
 524 #define JS_E_INVALID_PROPERTY        MAKE_JSERROR(IDS_NO_PROPERTY)
 525 #define JS_E_INVALID_ACTION          MAKE_JSERROR(IDS_UNSUPPORTED_ACTION)
 526 #define JS_E_MISSING_ARG             MAKE_JSERROR(IDS_ARG_NOT_OPT)
 527 #define JS_E_SYNTAX                  MAKE_JSERROR(IDS_SYNTAX_ERROR)
 528 #define JS_E_MISSING_SEMICOLON       MAKE_JSERROR(IDS_SEMICOLON)
 529 #define JS_E_MISSING_LBRACKET        MAKE_JSERROR(IDS_LBRACKET)
 530 #define JS_E_MISSING_RBRACKET        MAKE_JSERROR(IDS_RBRACKET)
 531 #define JS_E_EXPECTED_IDENTIFIER     MAKE_JSERROR(IDS_EXPECTED_IDENTIFIER)
 532 #define JS_E_EXPECTED_ASSIGN         MAKE_JSERROR(IDS_EXPECTED_ASSIGN)
 533 #define JS_E_INVALID_CHAR            MAKE_JSERROR(IDS_INVALID_CHAR)
 534 #define JS_E_UNTERMINATED_STRING     MAKE_JSERROR(IDS_UNTERMINATED_STR)
 535 #define JS_E_MISPLACED_RETURN        MAKE_JSERROR(IDS_MISPLACED_RETURN)
 536 #define JS_E_INVALID_BREAK           MAKE_JSERROR(IDS_INVALID_BREAK)
 537 #define JS_E_INVALID_CONTINUE        MAKE_JSERROR(IDS_INVALID_CONTINUE)
 538 #define JS_E_LABEL_REDEFINED         MAKE_JSERROR(IDS_LABEL_REDEFINED)
 539 #define JS_E_LABEL_NOT_FOUND         MAKE_JSERROR(IDS_LABEL_NOT_FOUND)
 540 #define JS_E_EXPECTED_CCEND          MAKE_JSERROR(IDS_EXPECTED_CCEND)
 541 #define JS_E_DISABLED_CC             MAKE_JSERROR(IDS_DISABLED_CC)
 542 #define JS_E_EXPECTED_AT             MAKE_JSERROR(IDS_EXPECTED_AT)
 543 #define JS_E_FUNCTION_EXPECTED       MAKE_JSERROR(IDS_NOT_FUNC)
 544 #define JS_E_DATE_EXPECTED           MAKE_JSERROR(IDS_NOT_DATE)
 545 #define JS_E_NUMBER_EXPECTED         MAKE_JSERROR(IDS_NOT_NUM)
 546 #define JS_E_OBJECT_EXPECTED         MAKE_JSERROR(IDS_OBJECT_EXPECTED)
 547 #define JS_E_ILLEGAL_ASSIGN          MAKE_JSERROR(IDS_ILLEGAL_ASSIGN)
 548 #define JS_E_UNDEFINED_VARIABLE      MAKE_JSERROR(IDS_UNDEFINED)
 549 #define JS_E_BOOLEAN_EXPECTED        MAKE_JSERROR(IDS_NOT_BOOL)
 550 #define JS_E_VBARRAY_EXPECTED        MAKE_JSERROR(IDS_NOT_VBARRAY)
 551 #define JS_E_INVALID_DELETE          MAKE_JSERROR(IDS_INVALID_DELETE)
 552 #define JS_E_JSCRIPT_EXPECTED        MAKE_JSERROR(IDS_JSCRIPT_EXPECTED)
 553 #define JS_E_ENUMERATOR_EXPECTED     MAKE_JSERROR(IDS_ENUMERATOR_EXPECTED)
 554 #define JS_E_REGEXP_EXPECTED         MAKE_JSERROR(IDS_REGEXP_EXPECTED)
 555 #define JS_E_REGEXP_SYNTAX           MAKE_JSERROR(IDS_REGEXP_SYNTAX_ERROR)
 556 #define JS_E_UNEXPECTED_QUANTIFIER   MAKE_JSERROR(IDS_UNEXPECTED_QUANTIFIER)
 557 #define JS_E_EXCEPTION_THROWN        MAKE_JSERROR(IDS_EXCEPTION_THROWN)
 558 #define JS_E_INVALID_URI_CODING      MAKE_JSERROR(IDS_URI_INVALID_CODING)
 559 #define JS_E_INVALID_URI_CHAR        MAKE_JSERROR(IDS_URI_INVALID_CHAR)
 560 #define JS_E_FRACTION_DIGITS_OUT_OF_RANGE MAKE_JSERROR(IDS_FRACTION_DIGITS_OUT_OF_RANGE)
 561 #define JS_E_PRECISION_OUT_OF_RANGE  MAKE_JSERROR(IDS_PRECISION_OUT_OF_RANGE)
 562 #define JS_E_INVALID_LENGTH          MAKE_JSERROR(IDS_INVALID_LENGTH)
 563 #define JS_E_ARRAY_EXPECTED          MAKE_JSERROR(IDS_ARRAY_EXPECTED)
 564 #define JS_E_CYCLIC_PROTO_VALUE      MAKE_JSERROR(IDS_CYCLIC_PROTO_VALUE)
 565 #define JS_E_CANNOT_CREATE_FOR_NONEXTENSIBLE MAKE_JSERROR(IDS_CREATE_FOR_NONEXTENSIBLE)
 566 #define JS_E_OBJECT_NONEXTENSIBLE    MAKE_JSERROR(IDS_OBJECT_NONEXTENSIBLE)
 567 #define JS_E_NONCONFIGURABLE_REDEFINED MAKE_JSERROR(IDS_NONCONFIGURABLE_REDEFINED)
 568 #define JS_E_NONWRITABLE_MODIFIED    MAKE_JSERROR(IDS_NONWRITABLE_MODIFIED)
 569 #define JS_E_WRONG_THIS              MAKE_JSERROR(IDS_WRONG_THIS)
 570 #define JS_E_KEY_NOT_OBJECT          MAKE_JSERROR(IDS_KEY_NOT_OBJECT)
 571 #define JS_E_PROP_DESC_MISMATCH      MAKE_JSERROR(IDS_PROP_DESC_MISMATCH)
 572 #define JS_E_INVALID_WRITABLE_PROP_DESC MAKE_JSERROR(IDS_INVALID_WRITABLE_PROP_DESC)
 573
 574 static inline BOOL is_jscript_error(HRESULT hres)
 575 {
 576     return HRESULT_FACILITY(hres) == FACILITY_JSCRIPT;
 577 }
 578
 579 const char *debugstr_jsval(const jsval_t);
 580
 581 HRESULT create_jscript_object(BOOL,REFIID,void**);
 582
 583 extern LONG module_ref ;
 584
 585 static inline void lock_module(void)
 586 {
 587     InterlockedIncrement(&module_ref);
 588 }
 589
 590 static inline void unlock_module(void)
 591 {
 592     InterlockedDecrement(&module_ref);
 593 }