2 * Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
3 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
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.
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.
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
22 #include "StringConstructor.h"
24 #include "Executable.h"
26 #include "JSFunction.h"
27 #include "JSGlobalObject.h"
28 #include "Operations.h"
29 #include "StringPrototype.h"
33 static EncodedJSValue JSC_HOST_CALL stringFromCharCode(ExecState*);
37 #include "StringConstructor.lut.h"
41 const ClassInfo StringConstructor::s_info = { "Function", &InternalFunction::s_info, 0, ExecState::stringConstructorTable, CREATE_METHOD_TABLE(StringConstructor) };
43 /* Source for StringConstructor.lut.h
44 @begin stringConstructorTable
45 fromCharCode stringFromCharCode DontEnum|Function 1
49 STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(StringConstructor);
51 StringConstructor::StringConstructor(VM& vm, Structure* structure)
52 : InternalFunction(vm, structure)
56 void StringConstructor::finishCreation(VM& vm, StringPrototype* stringPrototype)
58 Base::finishCreation(vm, stringPrototype->classInfo()->className);
59 putDirectWithoutTransition(vm, vm.propertyNames->prototype, stringPrototype, ReadOnly | DontEnum | DontDelete);
60 putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(1), ReadOnly | DontEnum | DontDelete);
63 bool StringConstructor::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot &slot)
65 return getStaticFunctionSlot<InternalFunction>(exec, ExecState::stringConstructorTable(exec), jsCast<StringConstructor*>(object), propertyName, slot);
68 // ------------------------------ Functions --------------------------------
70 static NEVER_INLINE JSValue stringFromCharCodeSlowCase(ExecState* exec)
72 unsigned length = exec->argumentCount();
74 PassRefPtr<StringImpl> impl = StringImpl::createUninitialized(length, buf);
75 for (unsigned i = 0; i < length; ++i)
76 buf[i] = static_cast<UChar>(exec->uncheckedArgument(i).toUInt32(exec));
77 return jsString(exec, impl);
80 static EncodedJSValue JSC_HOST_CALL stringFromCharCode(ExecState* exec)
82 if (LIKELY(exec->argumentCount() == 1))
83 return JSValue::encode(jsSingleCharacterString(exec, exec->uncheckedArgument(0).toUInt32(exec)));
84 return JSValue::encode(stringFromCharCodeSlowCase(exec));
87 JSCell* JSC_HOST_CALL stringFromCharCode(ExecState* exec, int32_t arg)
89 return jsSingleCharacterString(exec, arg);
92 static EncodedJSValue JSC_HOST_CALL constructWithStringConstructor(ExecState* exec)
94 JSGlobalObject* globalObject = asInternalFunction(exec->callee())->globalObject();
95 if (!exec->argumentCount())
96 return JSValue::encode(StringObject::create(exec, globalObject->stringObjectStructure()));
98 return JSValue::encode(StringObject::create(exec, globalObject->stringObjectStructure(), exec->uncheckedArgument(0).toString(exec)));
101 ConstructType StringConstructor::getConstructData(JSCell*, ConstructData& constructData)
103 constructData.native.function = constructWithStringConstructor;
104 return ConstructTypeHost;
107 static EncodedJSValue JSC_HOST_CALL callStringConstructor(ExecState* exec)
109 if (!exec->argumentCount())
110 return JSValue::encode(jsEmptyString(exec));
111 return JSValue::encode(exec->uncheckedArgument(0).toString(exec));
114 CallType StringConstructor::getCallData(JSCell*, CallData& callData)
116 callData.native.function = callStringConstructor;