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     DispatchEx *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, DispatchEx *prototype,
 169         DispatchEx *constr, DispatchEx **ret)
 170 {
 171     DispatchEx *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, DispatchEx *constr,
 193         UINT number, const WCHAR *msg, DispatchEx **ret)
 194 {
 195     DispatchEx *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, DispatchEx *constr) {
 233     DispatchEx *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             V_VT(retv) = VT_DISPATCH;
 270             V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(err);
 271         }
 272         else
 273             jsdisp_release(err);
 274
 275         return S_OK;
 276
 277     default:
 278         FIXME("unimplemented flags %x\n", flags);
 279         return E_NOTIMPL;
 280     }
 281 }
 282
 283 static HRESULT ErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 284         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 285 {
 286     TRACE("\n");
 287     return error_constr(ctx, flags, dp, retv, ei, ctx->error_constr);
 288 }
 289
 290 static HRESULT EvalErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 291         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 292 {
 293     TRACE("\n");
 294     return error_constr(ctx, flags, dp, retv, ei, ctx->eval_error_constr);
 295 }
 296
 297 static HRESULT RangeErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 298         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 299 {
 300     TRACE("\n");
 301     return error_constr(ctx, flags, dp, retv, ei, ctx->range_error_constr);
 302 }
 303
 304 static HRESULT ReferenceErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 305         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 306 {
 307     TRACE("\n");
 308     return error_constr(ctx, flags, dp, retv, ei, ctx->reference_error_constr);
 309 }
 310
 311 static HRESULT RegExpErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 312         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 313 {
 314     TRACE("\n");
 315     return error_constr(ctx, flags, dp, retv, ei, ctx->regexp_error_constr);
 316 }
 317
 318 static HRESULT SyntaxErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 319         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 320 {
 321     TRACE("\n");
 322     return error_constr(ctx, flags, dp, retv, ei, ctx->syntax_error_constr);
 323 }
 324
 325 static HRESULT TypeErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 326         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 327 {
 328     TRACE("\n");
 329     return error_constr(ctx, flags, dp, retv, ei, ctx->type_error_constr);
 330 }
 331
 332 static HRESULT URIErrorConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
 333         DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 334 {
 335     TRACE("\n");
 336     return error_constr(ctx, flags, dp, retv, ei, ctx->uri_error_constr);
 337 }
 338
 339 HRESULT init_error_constr(script_ctx_t *ctx, DispatchEx *object_prototype)
 340 {
 341     static const WCHAR ErrorW[] = {'E','r','r','o','r',0};
 342     static const WCHAR EvalErrorW[] = {'E','v','a','l','E','r','r','o','r',0};
 343     static const WCHAR RangeErrorW[] = {'R','a','n','g','e','E','r','r','o','r',0};
 344     static const WCHAR ReferenceErrorW[] = {'R','e','f','e','r','e','n','c','e','E','r','r','o','r',0};
 345     static const WCHAR RegExpErrorW[] = {'R','e','g','E','x','p','E','r','r','o','r',0};
 346     static const WCHAR SyntaxErrorW[] = {'S','y','n','t','a','x','E','r','r','o','r',0};
 347     static const WCHAR TypeErrorW[] = {'T','y','p','e','E','r','r','o','r',0};
 348     static const WCHAR URIErrorW[] = {'U','R','I','E','r','r','o','r',0};
 349     static const WCHAR *names[] = {ErrorW, EvalErrorW, RangeErrorW,
 350         ReferenceErrorW, RegExpErrorW, SyntaxErrorW, TypeErrorW, URIErrorW};
 351     DispatchEx **constr_addr[] = {&ctx->error_constr, &ctx->eval_error_constr,
 352         &ctx->range_error_constr, &ctx->reference_error_constr, &ctx->regexp_error_constr,
 353         &ctx->syntax_error_constr, &ctx->type_error_constr,
 354         &ctx->uri_error_constr};
 355     static builtin_invoke_t constr_val[] = {ErrorConstr_value, EvalErrorConstr_value,
 356         RangeErrorConstr_value, ReferenceErrorConstr_value, RegExpErrorConstr_value,
 357         SyntaxErrorConstr_value, TypeErrorConstr_value, URIErrorConstr_value};
 358
 359     DispatchEx *err;
 360     INT i;
 361     VARIANT v;
 362     HRESULT hres;
 363
 364     for(i=0; i < sizeof(names)/sizeof(names[0]); i++) {
 365         hres = alloc_error(ctx, i==0 ? object_prototype : NULL, NULL, &err);
 366         if(FAILED(hres))
 367             return hres;
 368
 369         V_VT(&v) = VT_BSTR;
 370         V_BSTR(&v) = SysAllocString(names[i]);
 371         if(!V_BSTR(&v)) {
 372             jsdisp_release(err);
 373             return E_OUTOFMEMORY;
 374         }
 375
 376         hres = jsdisp_propput_name(err, nameW, &v, NULL/*FIXME*/, NULL/*FIXME*/);
 377
 378         if(SUCCEEDED(hres))
 379             hres = create_builtin_function(ctx, constr_val[i], names[i], NULL,
 380                     PROPF_CONSTR|1, err, constr_addr[i]);
 381
 382         jsdisp_release(err);
 383         VariantClear(&v);
 384         if(FAILED(hres))
 385             return hres;
 386     }
 387
 388     return S_OK;
 389 }
 390
 391 static HRESULT throw_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str, DispatchEx *constr)
 392 {
 393     WCHAR buf[1024], *pos = NULL;
 394     DispatchEx *err;
 395     HRESULT hres;
 396
 397     buf[0] = '\0';
 398     LoadStringW(jscript_hinstance, id&0xFFFF,  buf, sizeof(buf)/sizeof(WCHAR));
 399
 400     if(str) pos = strchrW(buf, '|');
 401     if(pos) {
 402         int len = strlenW(str);
 403         memmove(pos+len, pos+1, (strlenW(pos+1)+1)*sizeof(WCHAR));
 404         memcpy(pos, str, len*sizeof(WCHAR));
 405     }
 406
 407     WARN("%s\n", debugstr_w(buf));
 408
 409     id |= JSCRIPT_ERROR;
 410     hres = create_error(ctx, constr, id, buf, &err);
 411     if(FAILED(hres))
 412         return hres;
 413
 414     if(!ei)
 415         return id;
 416
 417     V_VT(&ei->var) = VT_DISPATCH;
 418     V_DISPATCH(&ei->var) = (IDispatch*)_IDispatchEx_(err);
 419
 420     return id;
 421 }
 422
 423 HRESULT throw_generic_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 424 {
 425     return throw_error(ctx, ei, id, str, ctx->error_constr);
 426 }
 427
 428 HRESULT throw_range_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 429 {
 430     return throw_error(ctx, ei, id, str, ctx->range_error_constr);
 431 }
 432
 433 HRESULT throw_reference_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 434 {
 435     return throw_error(ctx, ei, id, str, ctx->reference_error_constr);
 436 }
 437
 438 HRESULT throw_regexp_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 439 {
 440     return throw_error(ctx, ei, id, str, ctx->regexp_error_constr);
 441 }
 442
 443 HRESULT throw_syntax_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 444 {
 445     return throw_error(ctx, ei, id, str, ctx->syntax_error_constr);
 446 }
 447
 448 HRESULT throw_type_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 449 {
 450     return throw_error(ctx, ei, id, str, ctx->type_error_constr);
 451 }
 452
 453 HRESULT throw_uri_error(script_ctx_t *ctx, jsexcept_t *ei, UINT id, const WCHAR *str)
 454 {
 455     return throw_error(ctx, ei, id, str, ctx->uri_error_constr);
 456 }