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      1 /*
      2  *  Copyright (C) 1999-2000 Harri Porten (porten (at) kde.org)
      3  *  Copyright (C) 2003, 2008 Apple Inc. All rights reserved.
      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 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 Street, Fifth Floor, Boston, MA  02110-1301  USA
     18  *
     19  */
     20 
     21 #include "config.h"
     22 #include "BooleanPrototype.h"
     23 
     24 #include "Error.h"
     25 #include "JSFunction.h"
     26 #include "JSString.h"
     27 #include "ObjectPrototype.h"
     28 #include "PrototypeFunction.h"
     29 
     30 namespace JSC {
     31 
     32 ASSERT_CLASS_FITS_IN_CELL(BooleanPrototype);
     33 
     34 // Functions
     35 static JSValue JSC_HOST_CALL booleanProtoFuncToString(ExecState*, JSObject*, JSValue, const ArgList&);
     36 static JSValue JSC_HOST_CALL booleanProtoFuncValueOf(ExecState*, JSObject*, JSValue, const ArgList&);
     37 
     38 // ECMA 15.6.4
     39 
     40 BooleanPrototype::BooleanPrototype(ExecState* exec, NonNullPassRefPtr<Structure> structure, Structure* prototypeFunctionStructure)
     41     : BooleanObject(structure)
     42 {
     43     setInternalValue(jsBoolean(false));
     44 
     45     putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 0, exec->propertyNames().toString, booleanProtoFuncToString), DontEnum);
     46     putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 0, exec->propertyNames().valueOf, booleanProtoFuncValueOf), DontEnum);
     47 }
     48 
     49 
     50 // ------------------------------ Functions --------------------------
     51 
     52 // ECMA 15.6.4.2 + 15.6.4.3
     53 
     54 JSValue JSC_HOST_CALL booleanProtoFuncToString(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&)
     55 {
     56     if (thisValue == jsBoolean(false))
     57         return jsNontrivialString(exec, "false");
     58 
     59     if (thisValue == jsBoolean(true))
     60         return jsNontrivialString(exec, "true");
     61 
     62     if (!thisValue.inherits(&BooleanObject::info))
     63         return throwError(exec, TypeError);
     64 
     65     if (asBooleanObject(thisValue)->internalValue() == jsBoolean(false))
     66         return jsNontrivialString(exec, "false");
     67 
     68     ASSERT(asBooleanObject(thisValue)->internalValue() == jsBoolean(true));
     69     return jsNontrivialString(exec, "true");
     70 }
     71 
     72 JSValue JSC_HOST_CALL booleanProtoFuncValueOf(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&)
     73 {
     74     if (thisValue.isBoolean())
     75         return thisValue;
     76 
     77     if (!thisValue.inherits(&BooleanObject::info))
     78         return throwError(exec, TypeError);
     79 
     80     return asBooleanObject(thisValue)->internalValue();
     81 }
     82 
     83 } // namespace JSC
     84