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 static const WCHAR descriptionW[] = {'d','e','s','c','r','i','p','t','i','o','n',0};
  30 static const WCHAR messageW[] = {'m','e','s','s','a','g','e',0};
  31 static const WCHAR nameW[] = {'n','a','m','e',0};
  32 static const WCHAR numberW[] = {'n','u','m','b','e','r',0};
  33 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  34
  35 /* ECMA-262 3rd Edition    15.11.4.4 */
  36 static HRESULT Error_toString(script_ctx_t *ctx, vdisp_t *vthis, WORD flags,
  37         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
  38 {
  39     jsdisp_t *jsthis;
  40     BSTR name = NULL, msg = NULL, ret = NULL;
  41     VARIANT v;
  42     HRESULT hres;
  43
  44     static const WCHAR object_errorW[] = {'[','o','b','j','e','c','t',' ','E','r','r','o','r',']',0};
  45
  46     TRACE("\n");
  47
  48     jsthis = get_jsdisp(vthis);
  49     if(!jsthis || ctx->version < 2) {
  50         if(retv) {
  51             V_VT(retv) = VT_BSTR;
  52             V_BSTR(retv) = SysAllocString(object_errorW);
  53             if(!V_BSTR(retv))
  54                 return E_OUTOFMEMORY;
  55         }
  56         return S_OK;
  57     }
  58
  59     hres = jsdisp_propget_name(jsthis, nameW, &v, ei, caller);
  60     if(FAILED(hres))
  61         return hres;
  62
  63     if(V_VT(&v) != VT_EMPTY) {
  64         hres = to_string(ctx, &v, ei, &name);
  65         VariantClear(&v);
  66         if(FAILED(hres))
  67             return hres;
  68         if(!*name) {
  69             SysFreeString(name);
  70             name = NULL;
  71         }
  72     }
  73
  74     hres = jsdisp_propget_name(jsthis, messageW, &v, ei, caller);
  75     if(SUCCEEDED(hres)) {
  76         if(V_VT(&v) != VT_EMPTY) {
  77             hres = to_string(ctx, &v, ei, &msg);
  78             VariantClear(&v);
  79             if(SUCCEEDED(hres) && !*msg) {
  80                 SysFreeString(msg);
  81                 msg = NULL;
  82             }
  83         }
  84     }
  85
  86     if(SUCCEEDED(hres)) {
  87         if(name && msg) {
  88             DWORD name_len, msg_len;
  89
  90             name_len = SysStringLen(name);
  91             msg_len = SysStringLen(msg);
  92
  93             ret = SysAllocStringLen(NULL, name_len + msg_len + 2);
  94             if(ret) {
  95                 memcpy(ret, name, name_len*sizeof(WCHAR));
  96                 ret[name_len] = ':';
  97                 ret[name_len+1] = ' ';
  98                 memcpy(ret+name_len+2, msg, msg_len*sizeof(WCHAR));
  99             }
 100         }else if(name) {
 101             ret = name;
 102             name = NULL;
 103         }else if(msg) {
 104             ret = msg;
 105             msg = NULL;
 106         }else {
 107             ret = SysAllocString(object_errorW);
 108             if(!V_BSTR(retv))
 109                 hres = E_OUTOFMEMORY;
 110         }
 111     }
 112
 113     SysFreeString(msg);
 114     SysFreeString(name);
 115     if(FAILED(hres))
 116         return hres;
 117     if(!ret)
 118         return E_OUTOFMEMORY;
 119
 120     if(retv) {
 121         V_VT(retv) = VT_BSTR;
 122         V_BSTR(retv) = ret;
 123     }else {
 124         SysFreeString(ret);
 125     }
 126
 127     return S_OK;
 128 }
 129
 130 static HRESULT Error_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 131         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 132 {
 133     TRACE("\n");
 134
 135     switch(flags) {
 136     case INVOKE_FUNC:
 137         return throw_type_error(ctx, ei, IDS_NOT_FUNC, NULL);
 138     default:
 139         FIXME("unimplemented flags %x\n", flags);
 140         return E_NOTIMPL;
 141     }
 142
 143     return S_OK;
 144 }
 145
 146 static const builtin_prop_t Error_props[] = {
 147     {toStringW,                 Error_toString,                     PROPF_METHOD}
 148 };
 149
 150 static const builtin_info_t Error_info = {
 151     JSCLASS_ERROR,
 152     {NULL, Error_value, 0},
 153     sizeof(Error_props)/sizeof(*Error_props),
 154     Error_props,
 155     NULL,
 156     NULL
 157 };
 158
 159 static const builtin_info_t ErrorInst_info = {
 160     JSCLASS_ERROR,
 161     {NULL, Error_value, 0},
 162     0,
 163     NULL,
 164     NULL,
 165     NULL
 166 };
 167
 168 static HRESULT alloc_error(script_ctx_t *ctx, jsdisp_t *prototype,
 169         jsdisp_t *constr, jsdisp_t **ret)
 170 {
 171     jsdisp_t *err;
 172     HRESULT hres;
 173
 174     err = heap_alloc_zero(sizeof(*err));
 175     if(!err)
 176         return E_OUTOFMEMORY;
 177
 178     if(prototype)
 179         hres = init_dispex(err, ctx, &Error_info, prototype);
 180     else
 181         hres = init_dispex_from_constr(err, ctx, &ErrorInst_info,
 182             constr ? constr : ctx->error_constr);
 183     if(FAILED(hres)) {
 184         heap_free(err);
 185         return hres;
 186     }
 187
 188     *ret = err;
 189     return S_OK;
 190 }
 191
 192 static HRESULT create_error(script_ctx_t *ctx, jsdisp_t *constr,
 193         UINT number, const WCHAR *msg, jsdisp_t **ret)
 194 {
 195     jsdisp_t *err;
 196     VARIANT v;
 197     HRESULT hres;
 198
 199     hres = alloc_error(ctx, NULL, constr, &err);
 200     if(FAILED(hres))
 201         return hres;
 202
 203     V_VT(&v) = VT_I4;
 204     V_I4(&v) = number;
 205     hres = jsdisp_propput_name(err, numberW, &v, NULL/*FIXME*/, NULL/*FIXME*/);
 206     if(FAILED(hres)) {
 207         jsdisp_release(err);
 208         return hres;
 209     }
 210
 211     V_VT(&v) = VT_BSTR;
 212     if(msg) V_BSTR(&v) = SysAllocString(msg);
 213     else V_BSTR(&v) = SysAllocStringLen(NULL, 0);
 214     if(V_BSTR(&v)) {
 215         hres = jsdisp_propput_name(err, messageW, &v, NULL/*FIXME*/, NULL/*FIXME*/);
 216         if(SUCCEEDED(hres))
 217             hres = jsdisp_propput_name(err, descriptionW, &v, NULL/*FIXME*/, NULL/*FIXME*/);
 218         SysFreeString(V_BSTR(&v));
 219     }else {
 220         hres = E_OUTOFMEMORY;
 221     }
 222     if(FAILED(hres)) {
 223         jsdisp_release(err);
 224         return hres;
 225     }
 226
 227     *ret = err;
 228     return S_OK;
 229 }
 230
 231 static HRESULT error_constr(script_ctx_t *ctx, WORD flags, DISPPARAMS *dp,
 232         VARIANT *retv, jsexcept_t *ei, jsdisp_t *constr) {
 233     jsdisp_t *err;
 234     UINT num = 0;
 235     BSTR msg = NULL;
 236     HRESULT hres;
 237
 238     if(arg_cnt(dp)) {
 239         VARIANT numv;
 240
 241         hres = to_number(ctx, get_arg(dp, 0), ei, &numv);
 242         if(FAILED(hres) || (V_VT(&numv)==VT_R8 && isnan(V_R8(&numv))))
 243             hres = to_string(ctx, get_arg(dp, 0), ei, &msg);
 244         else if(V_VT(&numv) == VT_I4)
 245             num = V_I4(&numv);
 246         else
 247             num = V_R8(&numv);
 248
 249         if(FAILED(hres))
 250             return hres;
 251     }
 252
 253     if(arg_cnt(dp)>1 && !msg) {
 254         hres = to_string(ctx, get_arg(dp, 1), ei, &msg);
 255         if(FAILED(hres))
 256             return hres;
 257     }
 258
 259     switch(flags) {
 260     case INVOKE_FUNC:
 261     case DISPATCH_CONSTRUCT:
 262         hres = create_error(ctx, constr, num, msg, &err);
 263         SysFreeString(msg);
 264
 265         if(FAILED(hres))
 266             return hres;
 267
 268         if(retv)
 269             var_set_jsdisp(retv, err);
 270         else
 271             jsdisp_release(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(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 282         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 283 {
 284     TRACE("\n");
 285     return error_constr(ctx, flags, dp, retv, ei, ctx->error_constr);
 286 }
 287
 288 static HRESULT EvalErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 289         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 290 {
 291     TRACE("\n");
 292     return error_constr(ctx, flags, dp, retv, ei, ctx->eval_error_constr);
 293 }
 294
 295 static HRESULT RangeErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 296         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 297 {
 298     TRACE("\n");
 299     return error_constr(ctx, flags, dp, retv, ei, ctx->range_error_constr);
 300 }
 301
 302 static HRESULT ReferenceErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 303         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 304 {
 305     TRACE("\n");
 306     return error_constr(ctx, flags, dp, retv, ei, ctx->reference_error_constr);
 307 }
 308
 309 static HRESULT RegExpErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 310         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 311 {
 312     TRACE("\n");
 313     return error_constr(ctx, flags, dp, retv, ei, ctx->regexp_error_constr);
 314 }
 315
 316 static HRESULT SyntaxErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 317         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 318 {
 319     TRACE("\n");
 320     return error_constr(ctx, flags, dp, retv, ei, ctx->syntax_error_constr);
 321 }
 322
 323 static HRESULT TypeErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 324         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 325 {
 326     TRACE("\n");
 327     return error_constr(ctx, flags, dp, retv, ei, ctx->type_error_constr);
 328 }
 329
 330 static HRESULT URIErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 331         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 332 {
 333     TRACE("\n");
 334     return error_constr(ctx, flags, dp, retv, ei, ctx->uri_error_constr);
 335 }
 336
 337 HRESULT init_error_constr(script_ctx_t *ctx, jsdisp_t *object_prototype)
 338 {
 339     static const WCHAR ErrorW[] = {'E','r','r','o','r',0};
 340     static const WCHAR EvalErrorW[] = {'E','v','a','l','E','r','r','o','r',0};
 341     static const WCHAR RangeErrorW[] = {'R','a','n','g','e','E','r','r','o','r',0};
 342     static const WCHAR ReferenceErrorW[] = {'R','e','f','e','r','e','n','c','e','E','r','r','o','r',0};
 343     static const WCHAR RegExpErrorW[] = {'R','e','g','E','x','p','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, RegExpErrorW, SyntaxErrorW, TypeErrorW, URIErrorW};
 349     jsdisp_t **constr_addr[] = {&ctx->error_constr, &ctx->eval_error_constr,
 350         &ctx->range_error_constr, &ctx->reference_error_constr, &ctx->regexp_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, RegExpErrorConstr_value,
 355         SyntaxErrorConstr_value, TypeErrorConstr_value, URIErrorConstr_value};
 356
 357     jsdisp_t *err;
 358     INT i;
 359     VARIANT v;
 360     HRESULT hres;
 361
 362     for(i=0; i < sizeof(names)/sizeof(names[0]); 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             jsdisp_release(err);
 371             return E_OUTOFMEMORY;
 372         }
 373
 374         hres = jsdisp_propput_name(err, nameW, &v, NULL/*FIXME*/, NULL/*FIXME*/);
 375
 376         if(SUCCEEDED(hres))
 377             hres = create_builtin_function(ctx, constr_val[i], names[i], NULL,
 378                     PROPF_CONSTR|1, err, constr_addr[i]);
 379
 380         jsdisp_release(err);
 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, jsdisp_t *constr)
 390 {
 391     WCHAR buf[1024], *pos = NULL;
 392     jsdisp_t *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         var_set_jsdisp(&ei->var, err);
 414     return id;
 415 }
 416
 417 HRESULT throw_generic_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 418 {
 419     return throw_error(ctx, ei, id, str, ctx->error_constr);
 420 }
 421
 422 HRESULT throw_range_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 423 {
 424     return throw_error(ctx, ei, id, str, ctx->range_error_constr);
 425 }
 426
 427 HRESULT throw_reference_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 428 {
 429     return throw_error(ctx, ei, id, str, ctx->reference_error_constr);
 430 }
 431
 432 HRESULT throw_regexp_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 433 {
 434     return throw_error(ctx, ei, id, str, ctx->regexp_error_constr);
 435 }
 436
 437 HRESULT throw_syntax_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 438 {
 439     return throw_error(ctx, ei, id, str, ctx->syntax_error_constr);
 440 }
 441
 442 HRESULT throw_type_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 443 {
 444     return throw_error(ctx, ei, id, str, ctx->type_error_constr);
 445 }
 446
 447 HRESULT throw_uri_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 448 {
 449     return throw_error(ctx, ei, id, str, ctx->uri_error_constr);
 450 }