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