dlls/jscript/bool.c

   1 /*
   2  * Copyright 2008 Jacek Caban for CodeWeavers
   3  * Copyright 2009 Piotr Caban
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include <assert.h>
  21
  22 #include "jscript.h"
  23
  24 #include "wine/debug.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  27
  28 typedef struct {
  29     jsdisp_t dispex;
  30
  31     BOOL val;
  32 } BoolInstance;
  33
  34 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  35 static const WCHAR valueOfW[] = {'v','a','l','u','e','O','f',0};
  36
  37 static inline BoolInstance *bool_this(vdisp_t *jsthis)
  38 {
  39     return is_vclass(jsthis, JSCLASS_BOOLEAN) ? (BoolInstance*)jsthis->u.jsdisp : NULL;
  40 }
  41
  42 BOOL bool_obj_value(jsdisp_t *obj)
  43 {
  44     assert(is_class(obj, JSCLASS_BOOLEAN));
  45     return ((BoolInstance*)obj)->val;
  46 }
  47
  48 /* ECMA-262 3rd Edition    15.6.4.2 */
  49 static HRESULT Bool_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
  50 {
  51     BoolInstance *bool;
  52
  53     static const WCHAR trueW[] = {'t','r','u','e',0};
  54     static const WCHAR falseW[] = {'f','a','l','s','e',0};
  55
  56     TRACE("\n");
  57
  58     if(!(bool = bool_this(jsthis)))
  59         return throw_type_error(ctx, JS_E_BOOLEAN_EXPECTED, NULL);
  60
  61     if(r) {
  62         jsstr_t *val;
  63
  64         val = jsstr_alloc(bool->val ? trueW : falseW);
  65         if(!val)
  66             return E_OUTOFMEMORY;
  67
  68         *r = jsval_string(val);
  69     }
  70
  71     return S_OK;
  72 }
  73
  74 /* ECMA-262 3rd Edition    15.6.4.3 */
  75 static HRESULT Bool_valueOf(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
  76 {
  77     BoolInstance *bool;
  78
  79     TRACE("\n");
  80
  81     if(!(bool = bool_this(jsthis)))
  82         return throw_type_error(ctx, JS_E_BOOLEAN_EXPECTED, NULL);
  83
  84     if(r)
  85         *r = jsval_bool(bool->val);
  86     return S_OK;
  87 }
  88
  89 static HRESULT Bool_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
  90         jsval_t *r)
  91 {
  92     TRACE("\n");
  93
  94     switch(flags) {
  95     case INVOKE_FUNC:
  96         return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
  97     default:
  98         FIXME("unimplemented flags %x\n", flags);
  99         return E_NOTIMPL;
 100     }
 101
 102     return S_OK;
 103
 104 }
 105
 106 static const builtin_prop_t Bool_props[] = {
 107     {toStringW,              Bool_toString,             PROPF_METHOD},
 108     {valueOfW,               Bool_valueOf,              PROPF_METHOD}
 109 };
 110
 111 static const builtin_info_t Bool_info = {
 112     JSCLASS_BOOLEAN,
 113     {NULL, Bool_value, 0},
 114     sizeof(Bool_props)/sizeof(*Bool_props),
 115     Bool_props,
 116     NULL,
 117     NULL
 118 };
 119
 120 static const builtin_info_t BoolInst_info = {
 121     JSCLASS_BOOLEAN,
 122     {NULL, Bool_value, 0},
 123     0, NULL,
 124     NULL,
 125     NULL
 126 };
 127
 128 static HRESULT BoolConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
 129         jsval_t *r)
 130 {
 131     BOOL value = FALSE;
 132     HRESULT hres;
 133
 134     if(argc) {
 135         hres = to_boolean(argv[0], &value);
 136         if(FAILED(hres))
 137             return hres;
 138     }
 139
 140     switch(flags) {
 141     case DISPATCH_CONSTRUCT: {
 142         jsdisp_t *bool;
 143
 144         hres = create_bool(ctx, value, &bool);
 145         if(FAILED(hres))
 146             return hres;
 147
 148         *r = jsval_obj(bool);
 149         return S_OK;
 150     }
 151
 152     case INVOKE_FUNC:
 153         if(r)
 154             *r = jsval_bool(value);
 155         return S_OK;
 156
 157     default:
 158         FIXME("unimplemented flags %x\n", flags);
 159         return E_NOTIMPL;
 160     }
 161
 162     return S_OK;
 163 }
 164
 165 static HRESULT alloc_bool(script_ctx_t *ctx, jsdisp_t *object_prototype, BoolInstance **ret)
 166 {
 167     BoolInstance *bool;
 168     HRESULT hres;
 169
 170     bool = heap_alloc_zero(sizeof(BoolInstance));
 171     if(!bool)
 172         return E_OUTOFMEMORY;
 173
 174     if(object_prototype)
 175         hres = init_dispex(&bool->dispex, ctx, &Bool_info, object_prototype);
 176     else
 177         hres = init_dispex_from_constr(&bool->dispex, ctx, &BoolInst_info, ctx->bool_constr);
 178
 179     if(FAILED(hres)) {
 180         heap_free(bool);
 181         return hres;
 182     }
 183
 184     *ret = bool;
 185     return S_OK;
 186 }
 187
 188 HRESULT create_bool_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
 189 {
 190     BoolInstance *bool;
 191     HRESULT hres;
 192
 193     static const WCHAR BooleanW[] = {'B','o','o','l','e','a','n',0};
 194
 195     hres = alloc_bool(ctx, object_prototype, &bool);
 196     if(FAILED(hres))
 197         return hres;
 198
 199     hres = create_builtin_constructor(ctx, BoolConstr_value, BooleanW, NULL,
 200             PROPF_CONSTR|1, &bool->dispex, ret);
 201
 202     jsdisp_release(&bool->dispex);
 203     return hres;
 204 }
 205
 206 HRESULT create_bool(script_ctx_t *ctx, BOOL b, jsdisp_t **ret)
 207 {
 208     BoolInstance *bool;
 209     HRESULT hres;
 210
 211     hres = alloc_bool(ctx, NULL, &bool);
 212     if(FAILED(hres))
 213         return hres;
 214
 215     bool->val = b;
 216
 217     *ret = &bool->dispex;
 218     return S_OK;
 219 }