root/core/Namespace.cpp

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#include "avmplus.h"

using namespace MMgc;

namespace avmplus
{
        // See E4X 13.2.2, pg 64
    Namespace::Namespace(Atom prefix, Stringp uri, NamespaceType flags)
#ifdef DEBUGGER
                : AvmPlusScriptableObject(sotNamespace())
#endif // DEBUGGER
        {
                // verify our parameters are interned strings
                AvmAssert (uri->isInterned());
                // prefix can be an interned string, undefined, or null
                AvmAssert (AvmCore::isName(prefix) || AvmCore::isNullOrUndefined(prefix));
                setPrefix(prefix);
                setUri(uri, flags);
        }

        Namespace::~Namespace()
        {
                WBATOM(MMgc::GC::GetGC(this), this, &m_prefix, 0);
                setUri(NULL, NS_Public);
                setAPI(0);
        }

        void Namespace::setUri(Stringp uri, NamespaceType flags)
        {
                WBRC(GC::GetGC(this), this, &m_uri, (sint32)flags | (uintptr) uri);
        }

        void Namespace::setPrefix(Atom pre)
        {
                AvmAssert (AvmCore::isName(pre) || AvmCore::isNullOrUndefined(pre));
                // ensure that if the incoming Atom is a string, that it's interned
                AvmAssert(AvmCore::isString(pre) ? (AvmCore::atomToString(pre))->isInterned() : 1);

                WBATOM(MMgc::GC::GetGC(this), this, &m_prefix, pre);
        }

        bool Namespace::hasPrefix() const
        {
                return (AvmCore::isName(m_prefix) && AvmCore::atomToString(m_prefix)->length()>0);
        }

        bool Namespace::isPublic() const
        {
                Stringp uri = (Stringp)(((uintptr)m_uri)&~7);
                return getType() == Namespace::NS_Public && uri->isEmpty();
        }

        bool Namespace::EqualTo(const Namespace* other) const
        {
                if (isPrivate() || other->isPrivate())
                {
                        // one of these namespaces is private, so compare using object identity
                        return this == other;
                }
                else
                {
                        // both are public, so compare using uri's.  they are intern'ed so we
                        // can do a fast pointer compare.
                        return m_uri == other->m_uri && m_api==other->m_api;
                }
        }

        // Iterator support - for in, for each
        Atom Namespace::nextName(const AvmCore *core, int index)
        {
                // first return "uri" then "prefix"
                if (index == 1)
                        return core->kuri->atom();
                else if (index == 2)
                        return core->kprefix->atom();
                else            {
                        return nullStringAtom;
                }
        }

        Atom Namespace::nextValue(int index)
        {
                // first return uri then prefix
                if (index == 1)
                        return this->getURI()->atom();
                else if (index == 2)
                        return this->m_prefix;
                else
                {
                        return undefinedAtom;
                }
        }

        int Namespace::nextNameIndex(int index)
        {
                if (index < 2)
                        return index + 1;
                else 
                        return 0;
        }

        Stringp Namespace::format(AvmCore* core) const
        {
                (void) core;
                return getURI();
        }

        Stringp Namespace::getURI() const
        {
                return (Stringp)atomPtr(m_uri);
        }
}