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 "jscript.h"
  21
  22 #include "wine/debug.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  25
  26 typedef struct {
  27     jsdisp_t dispex;
  28
  29     BOOL val;
  30 } BoolInstance;
  31
  32 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  33 static const WCHAR valueOfW[] = {'v','a','l','u','e','O','f',0};
  34
  35 static inline BoolInstance *bool_this(vdisp_t *jsthis)
  36 {
  37     return is_vclass(jsthis, JSCLASS_BOOLEAN) ? (BoolInstance*)jsthis->u.jsdisp : NULL;
  38 }
  39
  40 /* ECMA-262 3rd Edition    15.6.4.2 */
  41 static HRESULT Bool_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
  42 {
  43     BoolInstance *bool;
  44
  45     static const WCHAR trueW[] = {'t','r','u','e',0};
  46     static const WCHAR falseW[] = {'f','a','l','s','e',0};
  47
  48     TRACE("\n");
  49
  50     if(!(bool = bool_this(jsthis)))
  51         return throw_type_error(ctx, JS_E_BOOLEAN_EXPECTED, NULL);
  52
  53     if(r) {
  54         jsstr_t *val;
  55
  56         val = jsstr_alloc(bool->val ? trueW : falseW);
  57         if(!val)
  58             return E_OUTOFMEMORY;
  59
  60         *r = jsval_string(val);
  61     }
  62
  63     return S_OK;
  64 }
  65
  66 /* ECMA-262 3rd Edition    15.6.4.3 */
  67 static HRESULT Bool_valueOf(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
  68 {
  69     BoolInstance *bool;
  70
  71     TRACE("\n");
  72
  73     if(!(bool = bool_this(jsthis)))
  74         return throw_type_error(ctx, JS_E_BOOLEAN_EXPECTED, NULL);
  75
  76     if(r)
  77         *r = jsval_bool(bool->val);
  78     return S_OK;
  79 }
  80
  81 static HRESULT Bool_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
  82         jsval_t *r)
  83 {
  84     TRACE("\n");
  85
  86     switch(flags) {
  87     case INVOKE_FUNC:
  88         return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
  89     default:
  90         FIXME("unimplemented flags %x\n", flags);
  91         return E_NOTIMPL;
  92     }
  93
  94     return S_OK;
  95
  96 }
  97
  98 static const builtin_prop_t Bool_props[] = {
  99     {toStringW,              Bool_toString,             PROPF_METHOD},
 100     {valueOfW,               Bool_valueOf,              PROPF_METHOD}
 101 };
 102
 103 static const builtin_info_t Bool_info = {
 104     JSCLASS_BOOLEAN,
 105     {NULL, Bool_value, 0},
 106     sizeof(Bool_props)/sizeof(*Bool_props),
 107     Bool_props,
 108     NULL,
 109     NULL
 110 };
 111
 112 static const builtin_info_t BoolInst_info = {
 113     JSCLASS_BOOLEAN,
 114     {NULL, Bool_value, 0},
 115     0, NULL,
 116     NULL,
 117     NULL
 118 };
 119
 120 static HRESULT BoolConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
 121         jsval_t *r)
 122 {
 123     BOOL value = FALSE;
 124     HRESULT hres;
 125
 126     if(argc) {
 127         hres = to_boolean(argv[0], &value);
 128         if(FAILED(hres))
 129             return hres;
 130     }
 131
 132     switch(flags) {
 133     case DISPATCH_CONSTRUCT: {
 134         jsdisp_t *bool;
 135
 136         hres = create_bool(ctx, value, &bool);
 137         if(FAILED(hres))
 138             return hres;
 139
 140         *r = jsval_obj(bool);
 141         return S_OK;
 142     }
 143
 144     case INVOKE_FUNC:
 145         if(r)
 146             *r = jsval_bool(value);
 147         return S_OK;
 148
 149     default:
 150         FIXME("unimplemented flags %x\n", flags);
 151         return E_NOTIMPL;
 152     }
 153
 154     return S_OK;
 155 }
 156
 157 static HRESULT alloc_bool(script_ctx_t *ctx, jsdisp_t *object_prototype, BoolInstance **ret)
 158 {
 159     BoolInstance *bool;
 160     HRESULT hres;
 161
 162     bool = heap_alloc_zero(sizeof(BoolInstance));
 163     if(!bool)
 164         return E_OUTOFMEMORY;
 165
 166     if(object_prototype)
 167         hres = init_dispex(&bool->dispex, ctx, &Bool_info, object_prototype);
 168     else
 169         hres = init_dispex_from_constr(&bool->dispex, ctx, &BoolInst_info, ctx->bool_constr);
 170
 171     if(FAILED(hres)) {
 172         heap_free(bool);
 173         return hres;
 174     }
 175
 176     *ret = bool;
 177     return S_OK;
 178 }
 179
 180 HRESULT create_bool_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
 181 {
 182     BoolInstance *bool;
 183     HRESULT hres;
 184
 185     static const WCHAR BooleanW[] = {'B','o','o','l','e','a','n',0};
 186
 187     hres = alloc_bool(ctx, object_prototype, &bool);
 188     if(FAILED(hres))
 189         return hres;
 190
 191     hres = create_builtin_constructor(ctx, BoolConstr_value, BooleanW, NULL,
 192             PROPF_CONSTR|1, &bool->dispex, ret);
 193
 194     jsdisp_release(&bool->dispex);
 195     return hres;
 196 }
 197
 198 HRESULT create_bool(script_ctx_t *ctx, BOOL b, jsdisp_t **ret)
 199 {
 200     BoolInstance *bool;
 201     HRESULT hres;
 202
 203     hres = alloc_bool(ctx, NULL, &bool);
 204     if(FAILED(hres))
 205         return hres;
 206
 207     bool->val = b;
 208
 209     *ret = &bool->dispex;
 210     return S_OK;
 211 }