dlls/jscript/error.c

   1 /*
   2  * Copyright 2009 Piotr Caban
   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 #include "config.h"
  19 #include "wine/port.h"
  20
  21 #include <math.h>
  22
  23 #include "jscript.h"
  24
  25 #include "wine/debug.h"
  26
  27 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  28
  29 typedef struct {
  30     DispatchEx dispex;
  31
  32     VARIANT number;
  33     VARIANT description;
  34     VARIANT message;
  35 } ErrorInstance;
  36
  37 static const WCHAR descriptionW[] = {'d','e','s','c','r','i','p','t','i','o','n',0};
  38 static const WCHAR messageW[] = {'m','e','s','s','a','g','e',0};
  39 static const WCHAR numberW[] = {'n','u','m','b','e','r',0};
  40 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  41
  42 static HRESULT Error_number(DispatchEx *dispex, LCID lcid, WORD flags,
  43         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  44 {
  45     ErrorInstance *This = (ErrorInstance*)dispex;
  46
  47     TRACE("\n");
  48
  49     switch(flags) {
  50     case DISPATCH_PROPERTYGET:
  51         return VariantCopy(retv, &This->number);
  52     case DISPATCH_PROPERTYPUT:
  53         return VariantCopy(&This->number, get_arg(dp, 0));
  54     default:
  55         FIXME("unimplemented flags %x\n", flags);
  56         return E_NOTIMPL;
  57     }
  58 }
  59
  60 static HRESULT Error_description(DispatchEx *dispex, LCID lcid, WORD flags,
  61         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  62 {
  63     ErrorInstance *This = (ErrorInstance*)dispex;
  64
  65     TRACE("\n");
  66
  67     switch(flags) {
  68     case DISPATCH_PROPERTYGET:
  69         return VariantCopy(retv, &This->description);
  70     case DISPATCH_PROPERTYPUT:
  71         return VariantCopy(&This->description, get_arg(dp, 0));
  72     default:
  73         FIXME("unimplemented flags %x\n", flags);
  74         return E_NOTIMPL;
  75     }
  76 }
  77
  78 /* ECMA-262 3rd Edition    15.11.4.3 */
  79 static HRESULT Error_message(DispatchEx *dispex, LCID lcid, WORD flags,
  80         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  81 {
  82     ErrorInstance *This = (ErrorInstance*)dispex;
  83
  84     TRACE("\n");
  85
  86     switch(flags) {
  87     case DISPATCH_PROPERTYGET:
  88         return VariantCopy(retv, &This->message);
  89     case DISPATCH_PROPERTYPUT:
  90         return VariantCopy(&This->message, get_arg(dp, 0));
  91     default:
  92         FIXME("unimplemented flags %x\n", flags);
  93         return E_NOTIMPL;
  94     }
  95 }
  96
  97 /* ECMA-262 3rd Edition    15.11.4.4 */
  98 static HRESULT Error_toString(DispatchEx *dispex, LCID lcid, WORD flags,
  99         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 100 {
 101     static const WCHAR str[] = {'[','o','b','j','e','c','t',' ','E','r','r','o','r',']',0};
 102
 103     TRACE("\n");
 104
 105     if(retv) {
 106         V_VT(retv) = VT_BSTR;
 107         V_BSTR(retv) = SysAllocString(str);
 108         if(!V_BSTR(retv))
 109             return E_OUTOFMEMORY;
 110     }
 111
 112     return S_OK;
 113 }
 114
 115 static HRESULT Error_value(DispatchEx *dispex, LCID lcid, WORD flags,
 116         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 117 {
 118     TRACE("\n");
 119
 120     switch(flags) {
 121     case INVOKE_FUNC:
 122         return throw_type_error(dispex->ctx, ei, IDS_NOT_FUNC, NULL);
 123     default:
 124         FIXME("unimplemented flags %x\n", flags);
 125         return E_NOTIMPL;
 126     }
 127
 128     return S_OK;
 129 }
 130
 131 static void Error_destructor(DispatchEx *dispex)
 132 {
 133     ErrorInstance *This = (ErrorInstance*)dispex;
 134
 135     VariantClear(&This->number);
 136     VariantClear(&This->description);
 137     VariantClear(&This->message);
 138     heap_free(This);
 139 }
 140
 141 static const builtin_prop_t Error_props[] = {
 142     {descriptionW,              Error_description,                  0},
 143     {messageW,                  Error_message,                      0},
 144     {numberW,                   Error_number,                       0},
 145     {toStringW,                 Error_toString,                     PROPF_METHOD}
 146 };
 147
 148 static const builtin_info_t Error_info = {
 149     JSCLASS_ERROR,
 150     {NULL, Error_value, 0},
 151     sizeof(Error_props)/sizeof(*Error_props),
 152     Error_props,
 153     Error_destructor,
 154     NULL
 155 };
 156
 157 static const builtin_prop_t ErrorInst_props[] = {
 158     {descriptionW,              Error_description,                  0},
 159     {messageW,                  Error_message,                      0},
 160     {numberW,                   Error_number,                       0},
 161 };
 162
 163 static const builtin_info_t ErrorInst_info = {
 164     JSCLASS_ERROR,
 165     {NULL, Error_value, 0},
 166     sizeof(ErrorInst_props)/sizeof(*ErrorInst_props),
 167     ErrorInst_props,
 168     Error_destructor,
 169     NULL
 170 };
 171
 172 static HRESULT alloc_error(script_ctx_t *ctx, DispatchEx *prototype,
 173         DispatchEx *constr, ErrorInstance **ret)
 174 {
 175     ErrorInstance *err;
 176     HRESULT hres;
 177
 178     err = heap_alloc_zero(sizeof(ErrorInstance));
 179     if(!err)
 180         return E_OUTOFMEMORY;
 181
 182     if(prototype)
 183         hres = init_dispex(&err->dispex, ctx, &Error_info, prototype);
 184     else
 185         hres = init_dispex_from_constr(&err->dispex, ctx, &ErrorInst_info,
 186             constr ? constr : ctx->error_constr);
 187     if(FAILED(hres)) {
 188         heap_free(err);
 189         return hres;
 190     }
 191
 192     *ret = err;
 193     return S_OK;
 194 }
 195
 196 static HRESULT create_error(script_ctx_t *ctx, DispatchEx *constr,
 197         const UINT *number, const WCHAR *msg, DispatchEx **ret)
 198 {
 199     ErrorInstance *err;
 200     HRESULT hres;
 201
 202     hres = alloc_error(ctx, NULL, constr, &err);
 203     if(FAILED(hres))
 204         return hres;
 205
 206     if(number) {
 207         V_VT(&err->number) = VT_I4;
 208         V_I4(&err->number) = *number;
 209     }
 210
 211     V_VT(&err->message) = VT_BSTR;
 212     if(msg) V_BSTR(&err->message) = SysAllocString(msg);
 213     else V_BSTR(&err->message) = SysAllocStringLen(NULL, 0);
 214
 215     VariantCopy(&err->description, &err->message);
 216
 217     if(!V_BSTR(&err->message)) {
 218         heap_free(err);
 219         return E_OUTOFMEMORY;
 220     }
 221
 222     *ret = &err->dispex;
 223     return S_OK;
 224 }
 225
 226 static HRESULT error_constr(DispatchEx *dispex, WORD flags, DISPPARAMS *dp,
 227         VARIANT *retv, jsexcept_t *ei, DispatchEx *constr) {
 228     DispatchEx *err;
 229     VARIANT numv;
 230     UINT num;
 231     BSTR msg = NULL;
 232     HRESULT hres;
 233
 234     V_VT(&numv) = VT_NULL;
 235
 236     if(arg_cnt(dp)) {
 237         hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &numv);
 238         if(FAILED(hres) || (V_VT(&numv)==VT_R8 && isnan(V_R8(&numv))))
 239             hres = to_string(dispex->ctx, get_arg(dp, 0), ei, &msg);
 240         else if(V_VT(&numv) == VT_I4)
 241             num = V_I4(&numv);
 242         else
 243             num = V_R8(&numv);
 244
 245         if(FAILED(hres))
 246             return hres;
 247     }
 248
 249     if(arg_cnt(dp)>1 && !msg) {
 250         hres = to_string(dispex->ctx, get_arg(dp, 1), ei, &msg);
 251         if(FAILED(hres))
 252             return hres;
 253     }
 254
 255     switch(flags) {
 256     case INVOKE_FUNC:
 257     case DISPATCH_CONSTRUCT:
 258         if(V_VT(&numv) == VT_NULL)
 259             hres = create_error(dispex->ctx, constr, NULL, msg, &err);
 260         else
 261             hres = create_error(dispex->ctx, constr, &num, msg, &err);
 262
 263         if(FAILED(hres))
 264             return hres;
 265
 266         if(retv) {
 267             V_VT(retv) = VT_DISPATCH;
 268             V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(err);
 269         }
 270         else
 271             IDispatchEx_Release(_IDispatchEx_(err));
 272
 273         return S_OK;
 274
 275     default:
 276         FIXME("unimplemented flags %x\n", flags);
 277         return E_NOTIMPL;
 278     }
 279 }
 280
 281 static HRESULT ErrorConstr_value(DispatchEx *dispex, LCID lcid, WORD flags,
 282         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 283 {
 284     TRACE("\n");
 285     return error_constr(dispex, flags, dp, retv, ei,
 286             dispex->ctx->error_constr);
 287 }
 288
 289 static HRESULT EvalErrorConstr_value(DispatchEx *dispex, LCID lcid, WORD flags,
 290         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 291 {
 292     TRACE("\n");
 293     return error_constr(dispex, flags, dp, retv, ei,
 294             dispex->ctx->eval_error_constr);
 295 }
 296
 297 static HRESULT RangeErrorConstr_value(DispatchEx *dispex, LCID lcid, WORD flags,
 298         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 299 {
 300     TRACE("\n");
 301     return error_constr(dispex, flags, dp, retv, ei,
 302             dispex->ctx->range_error_constr);
 303 }
 304
 305 static HRESULT ReferenceErrorConstr_value(DispatchEx *dispex, LCID lcid, WORD flags,
 306         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 307 {
 308     TRACE("\n");
 309     return error_constr(dispex, flags, dp, retv, ei,
 310             dispex->ctx->reference_error_constr);
 311 }
 312
 313 static HRESULT SyntaxErrorConstr_value(DispatchEx *dispex, LCID lcid, WORD flags,
 314         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 315 {
 316     TRACE("\n");
 317     return error_constr(dispex, flags, dp, retv, ei,
 318             dispex->ctx->syntax_error_constr);
 319 }
 320
 321 static HRESULT TypeErrorConstr_value(DispatchEx *dispex, LCID lcid, WORD flags,
 322         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 323 {
 324     TRACE("\n");
 325     return error_constr(dispex, flags, dp, retv, ei,
 326             dispex->ctx->type_error_constr);
 327 }
 328
 329 static HRESULT URIErrorConstr_value(DispatchEx *dispex, LCID lcid, WORD flags,
 330         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 331 {
 332     TRACE("\n");
 333     return error_constr(dispex, flags, dp, retv, ei,
 334             dispex->ctx->uri_error_constr);
 335 }
 336
 337 HRESULT init_error_constr(script_ctx_t *ctx, DispatchEx *object_prototype)
 338 {
 339     static const WCHAR nameW[] = {'n','a','m','e',0};
 340     static const WCHAR ErrorW[] = {'E','r','r','o','r',0};
 341     static const WCHAR EvalErrorW[] = {'E','v','a','l','E','r','r','o','r',0};
 342     static const WCHAR RangeErrorW[] = {'R','a','n','g','e','E','r','r','o','r',0};
 343     static const WCHAR ReferenceErrorW[] = {'R','e','f','e','r','e','n','c','e','E','r','r','o','r',0};
 344     static const WCHAR SyntaxErrorW[] = {'S','y','n','t','a','x','E','r','r','o','r',0};
 345     static const WCHAR TypeErrorW[] = {'T','y','p','e','E','r','r','o','r',0};
 346     static const WCHAR URIErrorW[] = {'U','R','I','E','r','r','o','r',0};
 347     static const WCHAR *names[] = {ErrorW, EvalErrorW, RangeErrorW,
 348         ReferenceErrorW, SyntaxErrorW, TypeErrorW, URIErrorW};
 349     DispatchEx **constr_addr[] = {&ctx->error_constr, &ctx->eval_error_constr,
 350         &ctx->range_error_constr, &ctx->reference_error_constr,
 351         &ctx->syntax_error_constr, &ctx->type_error_constr,
 352         &ctx->uri_error_constr};
 353     static builtin_invoke_t constr_val[] = {ErrorConstr_value, EvalErrorConstr_value,
 354         RangeErrorConstr_value, ReferenceErrorConstr_value, SyntaxErrorConstr_value,
 355         TypeErrorConstr_value, URIErrorConstr_value};
 356
 357     ErrorInstance *err;
 358     INT i;
 359     VARIANT v;
 360     HRESULT hres;
 361
 362     for(i=0; i<7; i++) {
 363         hres = alloc_error(ctx, i==0 ? object_prototype : NULL, NULL, &err);
 364         if(FAILED(hres))
 365             return hres;
 366
 367         V_VT(&v) = VT_BSTR;
 368         V_BSTR(&v) = SysAllocString(names[i]);
 369         if(!V_BSTR(&v)) {
 370             IDispatchEx_Release(_IDispatchEx_(&err->dispex));
 371             return E_OUTOFMEMORY;
 372         }
 373
 374         hres = jsdisp_propput_name(&err->dispex, nameW, ctx->lcid, &v, NULL/*FIXME*/, NULL/*FIXME*/);
 375
 376         if(SUCCEEDED(hres))
 377             hres = create_builtin_function(ctx, constr_val[i], NULL,
 378                     PROPF_CONSTR, &err->dispex, constr_addr[i]);
 379
 380         IDispatchEx_Release(_IDispatchEx_(&err->dispex));
 381         VariantClear(&v);
 382         if(FAILED(hres))
 383             return hres;
 384     }
 385
 386     return S_OK;
 387 }
 388
 389 static HRESULT throw_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str, DispatchEx *constr)
 390 {
 391     WCHAR buf[1024], *pos = NULL;
 392     DispatchEx *err;
 393     HRESULT hres;
 394
 395     buf[0] = '\0';
 396     LoadStringW(jscript_hinstance, id&0xFFFF,  buf, sizeof(buf)/sizeof(WCHAR));
 397
 398     if(str) pos = strchrW(buf, '|');
 399     if(pos) {
 400         int len = strlenW(str);
 401         memmove(pos+len, pos+1, (strlenW(pos+1)+1)*sizeof(WCHAR));
 402         memcpy(pos, str, len*sizeof(WCHAR));
 403     }
 404
 405     WARN("%s\n", debugstr_w(buf));
 406
 407     id |= JSCRIPT_ERROR;
 408     hres = create_error(ctx, constr, &id, buf, &err);
 409     if(FAILED(hres))
 410         return hres;
 411
 412     if(!ei)
 413         return id;
 414
 415     V_VT(&ei->var) = VT_DISPATCH;
 416     V_DISPATCH(&ei->var) = (IDispatch*)_IDispatchEx_(err);
 417
 418     return id;
 419 }
 420
 421 HRESULT throw_eval_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 422 {
 423     return throw_error(ctx, ei, id, str, ctx->eval_error_constr);
 424 }
 425
 426 HRESULT throw_range_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 427 {
 428     return throw_error(ctx, ei, id, str, ctx->range_error_constr);
 429 }
 430
 431 HRESULT throw_reference_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 432 {
 433     return throw_error(ctx, ei, id, str, ctx->reference_error_constr);
 434 }
 435
 436 HRESULT throw_syntax_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 437 {
 438     return throw_error(ctx, ei, id, str, ctx->syntax_error_constr);
 439 }
 440
 441 HRESULT throw_type_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 442 {
 443     return throw_error(ctx, ei, id, str, ctx->type_error_constr);
 444 }
 445
 446 HRESULT throw_uri_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 447 {
 448     return throw_error(ctx, ei, id, str, ctx->uri_error_constr);
 449 }