source: webkit/trunk/JavaScriptCore/kjs/JSVariableObject.cpp@ 35027

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 *     its contributors may be used to endorse or promote products derived
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#include "config.h"
#include "JSVariableObject.h"

#include "PropertyNameArray.h"
#include "PropertyMap.h"

namespace KJS {

bool JSVariableObject::deleteProperty(ExecState* exec, const Identifier& propertyName)
{
    if (symbolTable().contains(propertyName.ustring().rep()))
        return false;

    return JSObject::deleteProperty(exec, propertyName);
}

void JSVariableObject::getPropertyNames(ExecState* exec, PropertyNameArray& propertyNames)
{
    SymbolTable::const_iterator end = symbolTable().end();
    for (SymbolTable::const_iterator it = symbolTable().begin(); it != end; ++it) {
        if (!(it->second.getAttributes() & DontEnum))
            propertyNames.add(Identifier(exec, it->first.get()));
    }
    
    JSObject::getPropertyNames(exec, propertyNames);
}

bool JSVariableObject::getPropertyAttributes(ExecState* exec, const Identifier& propertyName, unsigned& attributes) const
{
    SymbolTableEntry entry = symbolTable().get(propertyName.ustring().rep());
    if (!entry.isNull()) {
        attributes = entry.getAttributes() | DontDelete;
        return true;
    }
    return JSObject::getPropertyAttributes(exec, propertyName, attributes);
}

void JSVariableObject::mark()
{
    JSObject::mark();

    if (!d->registerArray)
        return;
    
    Register* end = d->registerArray.get() + d->registerArraySize;
    for (Register* it = d->registerArray.get(); it != end; ++it) {
        JSValue* v = (*it).u.jsValue;
        if (!v->marked())
            v->mark();
    }
}

bool JSVariableObject::isVariableObject() const
{
    return true;
}

void JSVariableObject::copyRegisterArray(Register* src, size_t count)
{
    ASSERT(!d->registerArray);

    Register* registerArray = new Register[count];
    memcpy(registerArray, src, count * sizeof(Register));

    setRegisterArray(registerArray, count);
}

void JSVariableObject::setRegisterArray(Register* registerArray, size_t count)
{
    if (registerArray != d->registerArray.get())
        d->registerArray.set(registerArray);
    d->registerArraySize = count;
    d->registers = registerArray + count;
}

} // namespace KJS