gdbmacros.py 63.8 KB
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#Note: Keep name-type-value-numchild-extra order

#######################################################################
#
# Dumper Implementations
#
#######################################################################

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def qdump__QByteArray(d, item):
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    d.putByteArrayValue(item.value)

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    d_ptr = item.value['d'].dereference()
    size = d_ptr['size']
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    d.putNumChild(size)
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    if d.isExpanded(item):
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        n = qmin(size, 1000)
        innerType = gdb.lookup_type("char")
        data = d_ptr['data']
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        d.beginChildren(n, innerType)
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        p = gdb.Value(data.cast(innerType.pointer()))
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        for i in xrange(n):
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            d.putItem(Item(p.dereference(), item.iname, i, None))
            p += 1
        if n < size:
            d.putEllipsis()
        d.endChildren()


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def qdump__QChar(d, item):
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    ucs = int(item.value["ucs"])
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    c = select(curses.ascii.isprint(ucs), ucs, '?')
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    d.putValue("'%c' (%d)" % (c, ucs))
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    d.putNumChild(0)


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def qdump__QAbstractItem(d, item):
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    r = item.value["r"]
    c = item.value["c"]
    p = item.value["p"]
    m = item.value["m"]
    rowCount = call(m, "rowCount(mi)")
    if rowCount < 0:
        return
    columnCount = call(m, "columnCount(mi)")
    if columnCount < 0:
        return
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    d.putStringValue(call(m, "data(mi, Qt::DisplayRole).toString()"))
    d.putNumChild(rowCount * columnCount)
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    if d.isExpanded(item):
        innerType = gdb.lookup_type(d.ns + "QAbstractItem")
        d.beginChildren()
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        for row in xrange(rowCount):
            for column in xrange(columnCount):
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                child = call(m, "index(row, column, mi)")
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                d.putName("[%s,%s]" % (row, column))
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                rr = call(m, "rowCount(child)")
                cc = call(m, "columnCount(child)")
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                d.putNumChild(rr * cc)
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                d.putField("value",
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                    call(m, "data(child, Qt::DisplayRole).toString())"), 6)
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                d.endHash()
        #d.beginHash()
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        #d.putName("DisplayRole")
        #d.putNumChild(0)
        #d.putValue(m->data(mi, Qt::DisplayRole).toString(), 2)
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        #d.putField("type", ns + "QString")
        #d.endHash()
        d.endChildren()


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def qdump__QAbstractItemModel(d, item):
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    rowCount = call(item.value, "rowCount()")
    if rowCount < 0:
        return
    columnCount = call(item.valuem, "columnCount()")
    if columnCount < 0:
        return

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    d.putValue("(%s,%s)" % (rowCount, columnCount))
    d.putNumChild(1)
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    if d.isExpanded(item):
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        d.beginChildren(1)
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        d.beginHash()
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        d.putNumChild(1)
        d.putName(d.ns + "QObject")
        d.putValue(call(item.value, "objectName()"), 2)
        d.putType(d.ns + "QObject")
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        d.putField("displayedtype", call(item, "m.metaObject()->className()"))
        d.endHash()
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        for row in xrange(rowCount):
            for column in xrange(columnCount):
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                mi = call(m, "index(%s,%s)" % (row, column))
                d.beginHash()
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                d.putName("[%s,%s]" % (row, column))
                d.putValue("m.data(mi, Qt::DisplayRole).toString()", 6)
                #d.putNumChild((m.hasChildren(mi) ? 1 : 0)
                d.putNumChild(1) #m.rowCount(mi) * m.columnCount(mi))
                d.putType(d.ns + "QAbstractItem")
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                d.endHash()
        d.endChildren()


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def qdump__QDateTime(d, item):
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    d.putStringValue(call(item.value, "toString(%sQt::TextDate)" % d.ns))
    d.putNumChild(3)
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    if d.isExpanded(item):
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        d.beginChildren(8)
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        d.putCallItem("isNull", item, "isNull()")
        d.putCallItem("toTime_t", item, "toTime_t()")
        d.putCallItem("toString",
            item, "toString(%sQt::TextDate)" % d.ns)
        d.putCallItem("(ISO)",
            item, "toString(%sQt::ISODate)" % d.ns)
        d.putCallItem("(SystemLocale)",
            item, "toString(%sQt::SystemLocaleDate)" % d.ns)
        d.putCallItem("(Locale)",
            item, "toString(%sQt::LocaleDate)" % d.ns)
        d.putCallItem("toUTC",
            item, "toTimeSpec(%sQt::UTC)" % d.ns)
        d.putCallItem("toLocalTime",
            item, "toTimeSpec(%sQt::LocalTime)" % d.ns)
        d.endChildren()


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def qdump__QDir(d, item):
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    d.putStringValue(call(item.value, "path()"))
    d.putNumChild(2)
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    if d.isExpanded(item):
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        d.beginChildren(2)
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        d.putCallItem("absolutePath", item, "absolutePath()")
        d.putCallItem("canonicalPath", item, "canonicalPath()")
        d.endChildren()


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def qdump__QFile(d, item):
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    d.putStringValue(call(item.value, "fileName()"))
    d.putNumChild(2)
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    if d.isExpanded(item):
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        d.beginChildren(2)
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        d.putCallItem("fileName", item, "fileName()")
        d.putCallItem("exists", item, "exists()")
        d.endChildren()


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def qdump__QFileInfo(d, item):
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    d.putStringValue(call(item.value, "filePath()"))
    d.putNumChild(3)
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    if d.isExpanded(item):
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        d.beginChildren(10, gdb.lookup_type(d.ns + "QString"))
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        d.putCallItem("absolutePath", item, "absolutePath()")
        d.putCallItem("absoluteFilePath", item, "absoluteFilePath()")
        d.putCallItem("canonicalPath", item, "canonicalPath()")
        d.putCallItem("canonicalFilePath", item, "canonicalFilePath()")
        d.putCallItem("completeBaseName", item, "completeBaseName()")
        d.putCallItem("completeSuffix", item, "completeSuffix()")
        d.putCallItem("baseName", item, "baseName()")
        if False:
            #ifdef Q_OS_MACX
            d.putCallItem("isBundle", item, "isBundle()")
            d.putCallItem("bundleName", item, "bundleName()")
        d.putCallItem("fileName", item, "fileName()")
        d.putCallItem("filePath", item, "filePath()")
        # Crashes gdb (archer-tromey-python, at dad6b53fe)
        #d.putCallItem("group", item, "group()")
        #d.putCallItem("owner", item, "owner()")
        d.putCallItem("path", item, "path()")

        d.putCallItem("groupid", item, "groupId()")
        d.putCallItem("ownerid", item, "ownerId()")

        #QFile::Permissions permissions () const
        perms = call(item.value, "permissions()")
        d.beginHash()
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        d.putName("permissions")
        d.putValue(" ")
        d.putType(d.ns + "QFile::Permissions")
        d.putNumChild(10)
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        if d.isExpandedIName(item.iname + ".permissions"):
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            d.beginChildren(10)
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            d.putBoolItem("ReadOwner",  perms & 0x4000)
            d.putBoolItem("WriteOwner", perms & 0x2000)
            d.putBoolItem("ExeOwner",   perms & 0x1000)
            d.putBoolItem("ReadUser",   perms & 0x0400)
            d.putBoolItem("WriteUser",  perms & 0x0200)
            d.putBoolItem("ExeUser",    perms & 0x0100)
            d.putBoolItem("ReadGroup",  perms & 0x0040)
            d.putBoolItem("WriteGroup", perms & 0x0020)
            d.putBoolItem("ExeGroup",   perms & 0x0010)
            d.putBoolItem("ReadOther",  perms & 0x0004)
            d.putBoolItem("WriteOther", perms & 0x0002)
            d.putBoolItem("ExeOther",   perms & 0x0001)
            d.endChildren()
        d.endHash()

        #QDir absoluteDir () const
        #QDir dir () const
        d.putCallItem("caching", item, "caching()")
        d.putCallItem("exists", item, "exists()")
        d.putCallItem("isAbsolute", item, "isAbsolute()")
        d.putCallItem("isDir", item, "isDir()")
        d.putCallItem("isExecutable", item, "isExecutable()")
        d.putCallItem("isFile", item, "isFile()")
        d.putCallItem("isHidden", item, "isHidden()")
        d.putCallItem("isReadable", item, "isReadable()")
        d.putCallItem("isRelative", item, "isRelative()")
        d.putCallItem("isRoot", item, "isRoot()")
        d.putCallItem("isSymLink", item, "isSymLink()")
        d.putCallItem("isWritable", item, "isWritable()")
        d.putCallItem("created", item, "created()")
        d.putCallItem("lastModified", item, "lastModified()")
        d.putCallItem("lastRead", item, "lastRead()")
        d.endChildren()


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def qdump__QFlags(d, item):
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    #warn("QFLAGS: %s" % item.value) 
    i = item.value["i"]
    enumType = item.value.type.template_argument(0)
    #warn("QFLAGS: %s" % item.value["i"].cast(enumType)) 
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    d.putValue("%s (%s)" % (i.cast(enumType), i))
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    d.putNumChild(0)


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def qdump__QHash(d, item):
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    def hashDataFirstNode(value):
        value = value.cast(hashDataType)
        bucket = value["buckets"]
        e = value.cast(hashNodeType)
        for n in xrange(value["numBuckets"] - 1, -1, -1):
            n = n - 1
            if n < 0:
                break
            if bucket.dereference() != e:
                return bucket.dereference()
            bucket = bucket + 1
        return e;

    def hashDataNextNode(node):
        next = node["next"]
        if next["next"]:
            return next
        d = node.cast(hashDataType.pointer()).dereference()
        numBuckets = d["numBuckets"]
        start = (node["h"] % numBuckets) + 1
        bucket = d["buckets"] + start
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        for n in xrange(numBuckets - start):
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            if bucket.dereference() != next:
                return bucket.dereference()
            bucket += 1
        return node

    keyType = item.value.type.template_argument(0)
    valueType = item.value.type.template_argument(1)

    d_ptr = item.value["d"]
    e_ptr = item.value["e"]
    n = d_ptr["size"]

    hashDataType = d_ptr.type
    hashNodeType = e_ptr.type

    check(0 <= n and n <= 100 * 1000 * 1000)
    check(d_ptr["ref"]["_q_value"] > 0)

    d.putItemCount(n)
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    d.putNumChild(n)
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    if d.isExpanded(item):
        if n > 1000:
            n = 1000

        isSimpleKey = isSimpleType(keyType)
        isSimpleValue = isSimpleType(valueType)
        node = hashDataFirstNode(item.value)

        innerType = e_ptr.dereference().type
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        inner = select(isSimpleKey and isSimpleValue, valueType, innerType)
        d.beginChildren(n, inner)
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        for i in xrange(n):
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            it = node.dereference().cast(innerType)
            d.beginHash()
            key = it["key"]
            value = it["value"]
            if isSimpleKey and isSimpleValue:
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                d.putName(key)
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                d.putItemHelper(Item(value, item.iname, i, None))
                d.putType(valueType)
            else:
                d.putItemHelper(Item(it, item.iname, i, None))
            d.endHash()
            node = hashDataNextNode(node)
        d.endChildren()


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def qdump__QHashNode(d, item):
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    keyType = item.value.type.template_argument(0)
    valueType = item.value.type.template_argument(1)
    key = item.value["key"]
    value = item.value["value"]

    if isSimpleType(valueType):
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        d.safePutItemHelper(Item(value))
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    else:
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        d.putValue(" ")
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    d.putNumChild(2)
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    if d.isExpanded(item):
        d.beginChildren()
        d.beginHash()
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        d.putName("key")
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        d.putItemHelper(Item(key, None, None, None))
        d.endHash()
        d.beginHash()
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        d.putName("value")
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        d.putItemHelper(Item(value, None, None, None))
        d.endHash()
        d.endChildren()


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def qdump__QList(d, item):
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    d_ptr = item.value["d"]
    begin = d_ptr["begin"]
    end = d_ptr["end"]
    array = d_ptr["array"]
    check(begin >= 0 and end >= 0 and end <= 1000 * 1000 * 1000)
    n = end - begin
    check(n >= 0)
    #if n > 0:
    #    checkAccess(&list.front())
    #    checkAccess(&list.back())

    check(d_ptr["ref"]["_q_value"] > 0)

    # Additional checks on pointer arrays.
    innerType = item.value.type.template_argument(0)
    innerTypeIsPointer = innerType.code == gdb.TYPE_CODE_PTR \
        and str(innerType.target().unqualified()) != "char"
    if innerTypeIsPointer:
        p = gdb.Value(array).cast(innerType.pointer()) + begin
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        checkPointerRange(p, qmin(n, 100))
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    d.putItemCount(n)
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    d.putNumChild(n)
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    if d.isExpanded(item):
        # about 0.5s / 1000 items
        if n > 2000:
            n = 2000

        innerSize = innerType.sizeof
        # The exact condition here is:
        #  QTypeInfo<T>::isLarge || QTypeInfo<T>::isStatic
        # but this data is available neither in the compiled binary nor
        # in the frontend.
        # So as first approximation only do the 'isLarge' check:
        isInternal = innerSize <= d_ptr.type.sizeof and d.isMovableType(innerType)
        #warn("INTERNAL: %d" % int(isInternal))

        p = gdb.Value(array).cast(innerType.pointer()) + begin
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        if innerTypeIsPointer:
            inner = innerType.target()
        else:
            inner = innerType
        d.beginChildren(n, inner)
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        for i in xrange(n):
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            if isInternal:
                d.putItem(Item(p.dereference(), item.iname, i, None))
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            else:
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                pp = p.cast(innerType.pointer().pointer()).dereference()
                d.putItem(Item(pp.dereference(), item.iname, i, None))
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            p += 1

        if n < end - begin:
            d.putEllipsis()
        d.endChildren()


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def qdump__QImage(d, item):
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    painters = item.value["painters"]
    check(0 <= painters and painters < 1000)
    d_ptr = item.value["d"]
    if isNull(d_ptr):
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        d.putValue("(null)")
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    else:
        check(d_ptr["ref"]["_q_value"] > 0)
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        d.putValue("(%dx%d)" % (d_ptr["width"], d_ptr["height"]))
    d.putNumChild(0)
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    #d.putNumChild(1)
    if d.isExpanded(item):
        d.beginChildren()
        d.beginHash()
        d.putName("data")
        d.putType(" ");
        d.putNumChild(0)
        bits = d_ptr["data"]
        nbytes = d_ptr["nbytes"]
        d.putValue("size: %s bytes" % nbytes);
        d.putField("valuetooltipencoded", "6")
        d.putField("valuetooltip", encodeCharArray(bits, nbytes))
        d.endHash()
        d.endChildren()
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def qdump__QLinkedList(d, item):
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    d_ptr = item.value["d"]
    e_ptr = item.value["e"]
    nn = d_ptr["size"]
    n = nn
    check(0 <= n and n <= 100*1000*1000)
    check(d_ptr["ref"]["_q_value"] > 0)

    d.putItemCount(n)
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    d.putNumChild(n)
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    if d.isExpanded(item):
        innerType = item.value.type.template_argument(0)
        if n > 1000:
            n = 1000
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        d.beginChildren(n, innerType)
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        p = e_ptr["n"]
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        for i in xrange(n):
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            d.safePutItem(Item(p["t"], None, None, None))
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            p = p["n"]
        if n < nn:
            d.putEllipsis()
        d.endChildren()


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def qdump__QLocale(d, item):
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    d.putStringValue(call(item.value, "name()"))
    d.putNumChild(8)
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    if d.isExpanded(item):
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        d.beginChildren(1, gdb.lookup_type(d.ns + "QChar"), 0)
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        d.putCallItem("country", item, "country()")
        d.putCallItem("language", item, "language()")
        d.putCallItem("measurementSystem", item, "measurementSystem()")
        d.putCallItem("numberOptions", item, "numberOptions()")
        d.putCallItem("timeFormat_(short)", item,
            "timeFormat(" + d.ns + "QLocale::ShortFormat)")
        d.putCallItem("timeFormat_(long)", item,
            "timeFormat(" + d.ns + "QLocale::LongFormat)")
        d.putCallItem("decimalPoint", item, "decimalPoint()")
        d.putCallItem("exponential", item, "exponential()")
        d.putCallItem("percent", item, "percent()")
        d.putCallItem("zeroDigit", item, "zeroDigit()")
        d.putCallItem("groupSeparator", item, "groupSeparator()")
        d.putCallItem("negativeSign", item, "negativeSign()")
        d.endChildren()


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def qdump__QMapNode(d, item):
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    d.putValue(" ")
    d.putNumChild(2)
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    if d.isExpanded(item):
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        d.beginChildren(2)
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        d.beginHash()
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        d.putName("key")
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        d.putItemHelper(Item(item.value["key"], item.iname, "name", None))
        d.endHash()
        d.beginHash()
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        d.putName("value")
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        d.putItemHelper(Item(item.value["value"], item.iname, "value", None))
        d.endHash()
        d.endChildren()


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def qdump__QMap(d, item):
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    d_ptr = item.value["d"].dereference()
    e_ptr = item.value["e"].dereference()
    n = d_ptr["size"]
    check(0 <= n and n <= 100*1000*1000)
    check(d_ptr["ref"]["_q_value"] > 0)

    d.putItemCount(n)
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    d.putNumChild(n)
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    if d.isExpanded(item):
        if n > 1000:
            n = 1000

        keyType = item.value.type.template_argument(0)
        valueType = item.value.type.template_argument(1)

        isSimpleKey = isSimpleType(keyType)
        isSimpleValue = isSimpleType(valueType)

        it = e_ptr["forward"].dereference()

        # QMapPayloadNode is QMapNode except for the 'forward' member, so
        # its size is most likely the offset of the 'forward' member therein.
        # Or possibly 2 * sizeof(void *)
        nodeType = gdb.lookup_type(d.ns + "QMapNode<%s, %s>" % (keyType, valueType))
        payloadSize = nodeType.sizeof - 2 * gdb.lookup_type("void").pointer().sizeof
        charPtr = gdb.lookup_type("char").pointer()

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        innerType = select(isSimpleKey and isSimpleValue, valueType, nodeType)
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        d.beginChildren(n, innerType)
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        for i in xrange(n):
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            itd = it.dereference()
            base = it.cast(charPtr) - payloadSize
            node = base.cast(nodeType.pointer()).dereference()
            d.beginHash()

            key = node["key"]
            value = node["value"]
            #if isSimpleType(item.value.type): # or isStringType(d, item.value.type):
            if isSimpleKey and isSimpleValue:
                #d.putType(valueType)
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                d.putName(key)
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                d.putItemHelper(Item(value, item.iname, i, None))
            else:
                d.putItemHelper(Item(node, item.iname, i, None))
            d.endHash()
            it = it.dereference()["forward"].dereference()
        d.endChildren()


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def qdump__MultiMap(d, item):
    qdump__Map(d, item)
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def qdump__QModelIndex(d, item):
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    r = item.value["r"]
    c = item.value["c"]
    p = item.value["p"]
    m = item.value["m"]
    if r >= 0 and c >= 0 and not isNull(m):
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        d.putValue("(%s, %s)" % (r, c))
        d.putNumChild(5)
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        if d.isExpanded(item):
            d.beginChildren()
            d.putIntItem("row", r)
            d.putIntItem("column", c)
            d.putCallItem("parent", item, "parent()")
            d.beginHash()
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            d.putName("model")
            d.putValue(m)
            d.putType(d.ns + "QAbstractItemModel*")
            d.putNumChild(1)
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            d.endHash()

            d.endChildren()
    else:
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        d.putValue("(invalid)")
        d.putNumChild(0)
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def extractCString(table, offset):
    result = ""
    while True:
        d = table[offset]
        if d == 0:
            break
        result += "%c" % d
        offset += 1
    return result


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def qdump__QObject(d, item):
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    #warn("OBJECT: %s " % item.value)
    staticMetaObject = item.value["staticMetaObject"]
    #warn("SMO: %s " % staticMetaObject)
    privateType = gdb.lookup_type(d.ns + "QObjectPrivate")
    d_ptr = item.value["d_ptr"]["d"].dereference().cast(privateType)
    #warn("D_PTR: %s " % d_ptr)
    objectName = d_ptr["objectName"]
    #warn("OBJECTNAME: %s " % objectName)
    #warn("D_PTR: %s " % d_ptr.dereference())
    mo = d_ptr["metaObject"]
    type = d.stripNamespaceFromType(item.value.type)
    if isNull(mo):
        mo = staticMetaObject
    #warn("MO: %s " % mo)
    #warn("MO.D: %s " % mo["d"])
    metaData = mo["d"]["data"]
    metaStringData = mo["d"]["stringdata"]
    #warn("METADATA: %s " % metaData)
    #warn("STRINGDATA: %s " % metaStringData)
    #warn("TYPE: %s " % item.value.type)
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    #d.putValue("")
    d.putStringValue(objectName)
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    #QSignalMapper::staticMetaObject
    #check(d_ptr["ref"]["_q_value"] > 0)
    d.putNumChild(4)
    if d.isExpanded(item):
        d.beginChildren()

        # parent and children
        d.putItem(Item(d_ptr["parent"], item.iname, "parent", "parent"))
        d.putItem(Item(d_ptr["children"], item.iname, "children", "children"))

        # properties
        d.beginHash()
        propertyCount = metaData[6]
        propertyData = metaData[7]
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        d.putName("properties")
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        d.putItemCount(propertyCount)
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        d.putType(" ")
        d.putNumChild(propertyCount)
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        if d.isExpandedIName(item.iname + ".properties"):
            d.beginChildren()
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            for property in xrange(propertyCount):
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                d.beginHash()
                offset = propertyData + 3 * property
                propertyName = extractCString(metaStringData, metaData[offset])
                propertyType = extractCString(metaStringData, metaData[offset + 1])
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                d.putName(propertyName)
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                #flags = metaData[offset + 2]
                #warn("FLAGS: %s " % flags)
                warn("PROPERTY TYPE: %s " % propertyType)
                # #exp = '((\'%sQObject\'*)%s)->property("%s")' \
                #     % (d.ns, item.value.address, propertyName)
                #exp = '"((\'%sQObject\'*)%s)"' % (d.ns, item.value.address,)
                #warn("EXPRESSION:  %s" % exp)
                value = call(item.value, 'property("%s")' % propertyName)
                warn("VALUE:  %s" % value)
                warn("TYPE:  %s" % value.type)
                if True and propertyType == "QString":
                    # FIXME: re-use parts of QVariant dumper
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                    #d.putType(d.ns + "QString")
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                    data = value["d"]["data"]["ptr"]
                    innerType = gdb.lookup_type(d.ns + "QString")
                    d.putItemHelper(
                        Item(data.cast(innerType), item.iname, property, None))
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                    #d.putNumChild(0)
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                else:
                    iname = "%s.properties.%s" % (item.iname, propertyName)
                    d.putItemHelper(Item(value, iname, propertyName))
                d.endHash()
            d.endChildren()
        d.endHash()

        # connections
        d.beginHash()
        connectionCount = 0
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        d.putName("connections")
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        d.putItemCount(connectionCount)
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        d.putType(" ")
        d.putNumChild(connectionCount)
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        if connectionCount:
            d.putField("childtype", "")
            d.putField("childnumchild", "0")

        if d.isExpandedIName(item.iname + ".connections"):
            d.beginChildren()

            connectionLists = d_ptr["connectionLists"]
            warn("CONNECTIONLISTS: %s " % connectionLists)

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            for connection in xrange(connectionCount):
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                d.beginHash()
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                d.putName("connection %d" % connection)
                d.putValue("")
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                d.endHash()
            d.endChildren()
        d.endHash()

        # signals
        signalCount = metaData[13]
        d.beginHash()
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        d.putName("signals")
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        d.putItemCount(signalCount)
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        d.putType(" ")
        d.putNumChild(signalCount)
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        if signalCount:
            # FIXME: empty type does not work for childtype
            #d.putField("childtype", ".")
            d.putField("childnumchild", "0")
        if d.isExpandedIName(item.iname + ".signals"):
            d.beginChildren()
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            for signal in xrange(signalCount):
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                d.beginHash()
                offset = metaData[14 + 5 * signal]
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                d.putName("signal %d" % signal)
                d.putType(" ")
                d.putValue(extractCString(metaStringData, offset))
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                d.endHash()
            d.endChildren()
        d.endHash()

        # slots
        d.beginHash()
        slotCount = metaData[4] - signalCount
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        d.putName("slots")
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        d.putItemCount(slotCount)
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        d.putType(" ")
        d.putNumChild(slotCount)
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        if slotCount:
            #d.putField("childtype", ".")
            d.putField("childnumchild", "0")
        if d.isExpandedIName(item.iname + ".slots"):
            d.beginChildren()
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            for slot in xrange(slotCount):
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                d.beginHash()
                offset = metaData[14 + 5 * (signalCount + slot)]
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                d.putName("slot %d" % slot)
                d.putType(" ")
                d.putValue(extractCString(metaStringData, offset))
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                d.endHash()
            d.endChildren()
        d.endHash()

        d.endChildren()


# QObject

#   static const uint qt_meta_data_QObject[] = {

#   int revision;
#   int className;
#   int classInfoCount, classInfoData;
#   int methodCount, methodData;
#   int propertyCount, propertyData;
#   int enumeratorCount, enumeratorData;
#   int constructorCount, constructorData; //since revision 2
#   int flags; //since revision 3
#   int signalCount; //since revision 4

#    // content:
#          4,       // revision
#          0,       // classname
#          0,    0, // classinfo
#          4,   14, // methods
#          1,   34, // properties
#          0,    0, // enums/sets
#          2,   37, // constructors
#          0,       // flags
#          2,       // signalCount

#  /* 14 */

#    // signals: signature, parameters, type, tag, flags
#          9,    8,    8,    8, 0x05,
#         29,    8,    8,    8, 0x25,

#  /* 24 */
#    // slots: signature, parameters, type, tag, flags
#         41,    8,    8,    8, 0x0a,
#         55,    8,    8,    8, 0x08,

#  /* 34 */
#    // properties: name, type, flags
#         90,   82, 0x0a095103,

#  /* 37 */
#    // constructors: signature, parameters, type, tag, flags
#        108,  101,    8,    8, 0x0e,
#        126,    8,    8,    8, 0x2e,

#          0        // eod
#   };

#   static const char qt_meta_stringdata_QObject[] = {
#       "QObject\0\0destroyed(QObject*)\0destroyed()\0"
#       "deleteLater()\0_q_reregisterTimers(void*)\0"
#       "QString\0objectName\0parent\0QObject(QObject*)\0"
#       "QObject()\0"
#   };


# QSignalMapper

#   static const uint qt_meta_data_QSignalMapper[] = {

#    // content:
#          4,       // revision
#          0,       // classname
#          0,    0, // classinfo
#          7,   14, // methods
#          0,    0, // properties
#          0,    0, // enums/sets
#          0,    0, // constructors
#          0,       // flags
#          4,       // signalCount

#    // signals: signature, parameters, type, tag, flags
#         15,   14,   14,   14, 0x05,
#         27,   14,   14,   14, 0x05,
#         43,   14,   14,   14, 0x05,
#         60,   14,   14,   14, 0x05,

#    // slots: signature, parameters, type, tag, flags
#         77,   14,   14,   14, 0x0a,
#         90,   83,   14,   14, 0x0a,
#        104,   14,   14,   14, 0x08,

#          0        // eod
#   };

#   static const char qt_meta_stringdata_QSignalMapper[] = {
#       "QSignalMapper\0\0mapped(int)\0mapped(QString)\0"
#       "mapped(QWidget*)\0mapped(QObject*)\0"
#       "map()\0sender\0map(QObject*)\0"
#       "_q_senderDestroyed()\0"
#   };

#   const QMetaObject QSignalMapper::staticMetaObject = {
#       { &QObject::staticMetaObject, qt_meta_stringdata_QSignalMapper,
#         qt_meta_data_QSignalMapper, 0 }
#   };



#     checkAccess(deref(d.data)); // is the d-ptr de-referenceable and valid
#     const QObject *ob = reinterpret_cast<const QObject *>(d.data)
#     const QMetaObject *mo = ob->metaObject()
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#     d.putValue(ob->objectName(), 2)
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#     d.putField("type", d.ns + "QObject")
#     d.putField("displayedtype", mo->className())
#     d.putField("numchild", 4)
#     if d.isExpanded(item):
#         int slotCount = 0
#         int signalCount = 0
#         for (int i = mo->methodCount(); --i >= 0; ) {
#             QMetaMethod::MethodType mt = mo->method(i).methodType()
#             signalCount += (mt == QMetaMethod::Signal)
#             slotCount += (mt == QMetaMethod::Slot)
#         }
#         d.beginChildren()
#         d.beginHash()
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#             d.putName("properties")
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#             // using 'addr' does not work in gdb as 'exp' is recreated as
#             // (type *)addr, and here we have different 'types':
#             // QObject vs QObjectPropertyList!
#             d.putField("addr", d.data)
#             d.putField("type", d.ns + "QObjectPropertyList")
#             d.putItemCount(mo->propertyCount())
#             d.putField("numchild", mo->propertyCount())
#         d.endHash()
#         d.beginHash()
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#             d.putName("signals")
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#             d.putField("addr", d.data)
#             d.putField("type", d.ns + "QObjectSignalList")
#             d.putItemCount(signalCount)
#             d.putField("numchild", signalCount)
#         d.endHash()
#         d.beginHash()
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#             d.putName("slots")
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#             d.putField("addr", d.data)
#             d.putField("type", d.ns + "QObjectSlotList")
#             d.putItemCount(slotCount)
#             d.putField("numchild", slotCount)
#         d.endHash()
#         const QObjectList objectChildren = ob->children()
#         if !objectChildren.empty()) {
#             d.beginHash()
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#             d.putName("children")
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#             d.putField("addr", d.data)
#             d.putField("type", ns + "QObjectChildList")
#             d.putItemCount(objectChildren.size())
#             d.putField("numchild", objectChildren.size())
#             d.endHash()
#         }
#         d.beginHash()
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#             d.putName("parent")
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#             dumpInnerValueHelper(d, ns + "QObject *", ob->parent())
#         d.endHash()
# #if 1
#         d.beginHash()
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#             d.putName("className")
#             d.putValue(ob->metaObject()->className())
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#             d.putField("type", "")
#             d.putField("numchild", "0")
#         d.endHash()
# #endif
#         d.endChildren()


# #if USE_QT_GUI
# static const char *sizePolicyEnumValue(QSizePolicy::Policy p)
# {
#     switch (p) {
#     case QSizePolicy::Fixed:
#         return "Fixed"
#     case QSizePolicy::Minimum:
#         return "Minimum"
#     case QSizePolicy::Maximum:
#         return "Maximum"
#     case QSizePolicy::Preferred:
#         return "Preferred"
#     case QSizePolicy::Expanding:
#         return "Expanding"
#     case QSizePolicy::MinimumExpanding:
#         return "MinimumExpanding"
#     case QSizePolicy::Ignored:
#         break
#     }
#     return "Ignored"
# }
#
# static QString sizePolicyValue(const QSizePolicy &sp)
# {
#     QString rc
#     QTextStream str(&rc)
#     // Display as in Designer
#     str << '[' << sizePolicyEnumValue(sp.horizontalPolicy())
#         << ", " << sizePolicyEnumValue(sp.verticalPolicy())
#         << ", " << sp.horizontalStretch() << ", " << sp.verticalStretch() << ']'
#     return rc
# }
# #endif
#
# // Meta enumeration helpers
# static inline void dumpMetaEnumType(QDumper &d, const QMetaEnum &me)
# {
#     QByteArray type = me.scope()
#     if !type.isEmpty())
#         type += "::"
#     type += me.name()
#     d.putField("type", type.constData())
# }
#
# static inline void dumpMetaEnumValue(QDumper &d, const QMetaProperty &mop,
#                                      int value)
# {
#
#     const QMetaEnum me = mop.enumerator()
#     dumpMetaEnumType(d, me)
#     if const char *enumValue = me.valueToKey(value)) {
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#         d.putValue(enumValue)
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#     } else {
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#         d.putValue(value)
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#     }
#     d.putField("numchild", 0)
# }
#
# static inline void dumpMetaFlagValue(QDumper &d, const QMetaProperty &mop,
#                                      int value)
# {
#     const QMetaEnum me = mop.enumerator()
#     dumpMetaEnumType(d, me)
#     const QByteArray flagsValue = me.valueToKeys(value)
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#     if flagsValue.isEmpty():
#         d.putValue(value)
#     else:
#         d.putValue(flagsValue.constData())
#     d.putNumChild(0)
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# }
#
# #ifndef QT_BOOTSTRAPPED
# static void dumpQObjectProperty(QDumper &d)
# {
#     const QObject *ob = (const QObject *)d.data
#     const QMetaObject *mob = ob->metaObject()
#     // extract "local.Object.property"
#     QString iname = d.iname
#     const int dotPos = iname.lastIndexOf(QLatin1Char('.'))
#     if dotPos == -1)
#         return
#     iname.remove(0, dotPos + 1)
#     const int index = mob->indexOfProperty(iname.toAscii())
#     if index == -1)
#         return
#     const QMetaProperty mop = mob->property(index)
#     const QVariant value = mop.read(ob)
#     const bool isInteger = value.type() == QVariant::Int
#     if isInteger and mop.isEnumType()) {
#         dumpMetaEnumValue(d, mop, value.toInt())
#     } elif isInteger and mop.isFlagType()) {
#         dumpMetaFlagValue(d, mop, value.toInt())
#     } else {
#         dumpQVariant(d, &value)
#     }
#     d.disarm()
# }
#
# static void dumpQObjectPropertyList(QDumper &d)
# {
#     const QObject *ob = (const QObject *)d.data
#     const QMetaObject *mo = ob->metaObject()
#     const int propertyCount = mo->propertyCount()
#     d.putField("addr", "<synthetic>")
#     d.putField("type", ns + "QObjectPropertyList")
#     d.putField("numchild", propertyCount)
#     d.putItemCount(propertyCount)
#     if d.isExpanded(item):
#         d.beginChildren()
#         for (int i = propertyCount; --i >= 0; ) {
#             const QMetaProperty & prop = mo->property(i)
#             d.beginHash()
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#             d.putName(prop.name())
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#             switch (prop.type()) {
#             case QVariant::String:
#                 d.putField("type", prop.typeName())
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#                 d.putValue(prop.read(ob).toString(), 2)
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#                 d.putField("numchild", "0")
#                 break
#             case QVariant::Bool:
#                 d.putField("type", prop.typeName())
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#                 d.putValue((prop.read(ob).toBool() ? "true" : "false"))
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#                 d.putField("numchild", "0")
#                 break
#             case QVariant::Int:
#                 if prop.isEnumType()) {
#                     dumpMetaEnumValue(d, prop, prop.read(ob).toInt())
#                 } elif prop.isFlagType()) {
#                     dumpMetaFlagValue(d, prop, prop.read(ob).toInt())
#                 } else {
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#                     d.putValue(prop.read(ob).toInt())
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#                     d.putField("numchild", "0")
#                 }
#                 break
#             default:
#                 d.putField("addr", d.data)
#                 d.putField("type", ns + "QObjectProperty")
#                 d.putField("numchild", "1")
#                 break
#             }
#             d.endHash()
#         }
#         d.endChildren()
#     }
#     d.disarm()
# }
#
# static void dumpQObjectMethodList(QDumper &d)
# {
#     const QObject *ob = (const QObject *)d.data
#     const QMetaObject *mo = ob->metaObject()
#     d.putField("addr", "<synthetic>")
#     d.putField("type", ns + "QObjectMethodList")
#     d.putField("numchild", mo->methodCount())
#     if d.isExpanded(item):
#         d.putField("childtype", ns + "QMetaMethod::Method")
#         d.putField("childnumchild", "0")
#         d.beginChildren()
#         for (int i = 0; i != mo->methodCount(); ++i) {
#             const QMetaMethod & method = mo->method(i)
#             int mt = method.methodType()
#             d.beginHash()
#             d.beginItem("name")
#                 d.put(i).put(" ").put(mo->indexOfMethod(method.signature()))
#                 d.put(" ").put(method.signature())
#             d.endItem()
#             d.beginItem("value")
#                 d.put((mt == QMetaMethod::Signal ? "<Signal>" : "<Slot>"))
#                 d.put(" (").put(mt).put(")")
#             d.endItem()
#             d.endHash()
#         }
#         d.endChildren()
#     }
#     d.disarm()
# }
#
# def qConnectionType(type):
#     Qt::ConnectionType connType = static_cast<Qt::ConnectionType>(type)
#     const char *output = "unknown"
#     switch (connType) {
#         case Qt::AutoConnection: output = "auto"; break
#         case Qt::DirectConnection: output = "direct"; break
#         case Qt::QueuedConnection: output = "queued"; break
#         case Qt::BlockingQueuedConnection: output = "blockingqueued"; break
#         case 3: output = "autocompat"; break
# #if QT_VERSION >= 0x040600
#         case Qt::UniqueConnection: break; // Can't happen.
# #endif
#     return output
#
# #if QT_VERSION >= 0x040400
# static const ConnectionList &qConnectionList(const QObject *ob, int signalNumber)
# {
#     static const ConnectionList emptyList
#     const ObjectPrivate *p = reinterpret_cast<const ObjectPrivate *>(dfunc(ob))
#     if !p->connectionLists)
#         return emptyList
#     typedef QVector<ConnectionList> ConnLists
#     const ConnLists *lists = reinterpret_cast<const ConnLists *>(p->connectionLists)
#     // there's an optimization making the lists only large enough to hold the
#     // last non-empty item
#     if signalNumber >= lists->size())
#         return emptyList
#     return lists->at(signalNumber)
# }
# #endif
#
# // Write party involved in a slot/signal element,
# // avoid to recursion to self.
# static inline void dumpQObjectConnectionPart(QDumper &d,
#                                               const QObject *owner,
#                                               const QObject *partner,
#                                               int number, const char *namePostfix)
# {
#     d.beginHash()
#     d.beginItem("name")
#     d.put(number).put(namePostfix)
#     d.endItem()
#     if partner == owner) {
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#         d.putValue("<this>")
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#         d.putField("type", owner->metaObject()->className())
#         d.putField("numchild", 0)
#         d.putField("addr", owner)
#     } else {
#         dumpInnerValueHelper(d, ns + "QObject *", partner)
#     }
#     d.endHash()
#
# static void dumpQObjectSignal(QDumper &d)
# {
#     unsigned signalNumber = d.extraInt[0]
#
#     d.putField("addr", "<synthetic>")
#     d.putField("numchild", "1")
#     d.putField("type", ns + "QObjectSignal")
#
# #if QT_VERSION >= 0x040400
#     if d.isExpanded(item):
#         const QObject *ob = reinterpret_cast<const QObject *>(d.data)
#         d.beginChildren()
#         const ConnectionList &connList = qConnectionList(ob, signalNumber)
#         for (int i = 0; i != connList.size(); ++i) {
#             const Connection &conn = connectionAt(connList, i)
#             dumpQObjectConnectionPart(d, ob, conn.receiver, i, " receiver")
#             d.beginHash()
#                 d.beginItem("name")
#                     d.put(i).put(" slot")
#                 d.endItem()
#                 d.putField("type", "")
#                 if conn.receiver)
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#                     d.putValue(conn.receiver->metaObject()->method(conn.method).signature())
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#                 else
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#                     d.putValue("<invalid receiver>")
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#                 d.putField("numchild", "0")
#             d.endHash()
#             d.beginHash()
#                 d.beginItem("name")
#                     d.put(i).put(" type")
#                 d.endItem()
#                 d.putField("type", "")
#                 d.beginItem("value")
#                     d.put("<").put(qConnectionType(conn.connectionType)).put(" connection>")
#                 d.endItem()
#                 d.putField("numchild", "0")
#             d.endHash()
#         }
#         d.endChildren()
#         d.putField("numchild", connList.size())
# #endif
#
# static void dumpQObjectSignalList(QDumper &d)
# {
#     const QObject *ob = reinterpret_cast<const QObject *>(d.data)
#     const QMetaObject *mo = ob->metaObject()
#     int count = 0
#     const int methodCount = mo->methodCount()
#     for (int i = methodCount; --i >= 0; )
#         count += (mo->method(i).methodType() == QMetaMethod::Signal)
#     d.putField("type", ns + "QObjectSignalList")
#     d.putItemCount(count)
#     d.putField("addr", d.data)
#     d.putField("numchild", count)
# #if QT_VERSION >= 0x040400
#     if d.isExpanded(item):
#         d.beginChildren()
#         for (int i = 0; i != methodCount; ++i) {
#             const QMetaMethod & method = mo->method(i)
#             if method.methodType() == QMetaMethod::Signal) {
#                 int k = mo->indexOfSignal(method.signature())
#                 const ConnectionList &connList = qConnectionList(ob, k)
#                 d.beginHash()
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#                 d.putName(k)
#                 d.putValue(method.signature())
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#                 d.putField("numchild", connList.size())
#                 d.putField("addr", d.data)
#                 d.putField("type", ns + "QObjectSignal")
#                 d.endHash()
# #endif
#
# static void dumpQObjectSlot(QDumper &d)
# {
#     int slotNumber = d.extraInt[0]
#
#     d.putField("addr", d.data)
#     d.putField("numchild", "1")
#     d.putField("type", ns + "QObjectSlot")
#
# #if QT_VERSION >= 0x040400
#     if d.isExpanded(item):
#         d.beginChildren()
#         int numchild = 0
#         const QObject *ob = reinterpret_cast<const QObject *>(d.data)
#         const ObjectPrivate *p = reinterpret_cast<const ObjectPrivate *>(dfunc(ob))
# #if QT_VERSION >= 0x040600
#         int s = 0
#         for (SenderList senderList = p->senders; senderList != 0
#              senderList = senderList->next, ++s) {
#             const QObject *sender = senderList->sender
#             int signal = senderList->method; // FIXME: 'method' is wrong.
# #else
#         for (int s = 0; s != p->senders.size(); ++s) {
#             const QObject *sender = senderAt(p->senders, s)
#             int signal = signalAt(p->senders, s)
# #endif
#             const ConnectionList &connList = qConnectionList(sender, signal)
#             for (int i = 0; i != connList.size(); ++i) {
#                 const Connection &conn = connectionAt(connList, i)
#                 if conn.receiver == ob and conn.method == slotNumber) {
#                     ++numchild
#                     const QMetaMethod &method = sender->metaObject()->method(signal)
#                     dumpQObjectConnectionPart(d, ob, sender, s, " sender")
#                     d.beginHash()
#                         d.beginItem("name")
#                             d.put(s).put(" signal")
#                         d.endItem()
#                         d.putField("type", "")
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#                         d.putValue(method.signature())
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#                         d.putField("numchild", "0")
#                     d.endHash()
#                     d.beginHash()
#                         d.beginItem("name")
#                             d.put(s).put(" type")
#                         d.endItem()
#                         d.putField("type", "")
#                         d.beginItem("value")
#                             d.put("<").put(qConnectionType(conn.method))
#                             d.put(" connection>")
#                         d.endItem()
#                         d.putField("numchild", "0")
#                     d.endHash()
#                 }
#             }
#         }
#         d.endChildren()
#         d.putField("numchild", numchild)
#     }
# #endif
#     d.disarm()
# }
#
# static void dumpQObjectSlotList(QDumper &d)
# {
#     const QObject *ob = reinterpret_cast<const QObject *>(d.data)
# #if QT_VERSION >= 0x040400
#     const ObjectPrivate *p = reinterpret_cast<const ObjectPrivate *>(dfunc(ob))
# #endif
#     const QMetaObject *mo = ob->metaObject()
#
#     int count = 0
#     const int methodCount = mo->methodCount()
#     for (int i = methodCount; --i >= 0; )
#         count += (mo->method(i).methodType() == QMetaMethod::Slot)
#
#     d.putField("numchild", count)
#     d.putItemCount(count)
#     d.putField("type", ns + "QObjectSlotList")
#     if d.isExpanded(item):
#         d.beginChildren()
# #if QT_VERSION >= 0x040400
#         for (int i = 0; i != methodCount; ++i) {
#             const QMetaMethod & method = mo->method(i)
#             if method.methodType() == QMetaMethod::Slot) {
#                 d.beginHash()
#                 int k = mo->indexOfSlot(method.signature())
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#                 d.putName(k)
#                 d.putValue(method.signature())
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#
#                 // count senders. expensive...
#                 int numchild = 0
# #if QT_VERSION >= 0x040600
#                 int s = 0
#                 for (SenderList senderList = p->senders; senderList != 0
#                      senderList = senderList->next, ++s) {
#                     const QObject *sender = senderList->sender
#                     int signal = senderList->method; // FIXME: 'method' is wrong.
# #else
#                 for (int s = 0; s != p->senders.size(); ++s) {
#                     const QObject *sender = senderAt(p->senders, s)
#                     int signal = signalAt(p->senders, s)
# #endif
#                     const ConnectionList &connList = qConnectionList(sender, signal)
#                     for (int c = 0; c != connList.size(); ++c) {
#                         const Connection &conn = connectionAt(connList, c)
#                         if conn.receiver == ob and conn.method == k)
#                             ++numchild
#                     }
#                 }
#                 d.putField("numchild", numchild)
#                 d.putField("addr", d.data)
#                 d.putField("type", ns + "QObjectSlot")
#                 d.endHash()
#             }
#         }
# #endif
#         d.endChildren()
#
# #endif // QT_BOOTSTRAPPED


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def qdump__QPixmap(d, item):
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    painters = item.value["painters"]
    check(0 <= painters and painters < 1000)
    d_ptr = item.value["data"]["d"]
    if isNull(d_ptr):
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        d.putValue("(null)")
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    else:
        check(d_ptr["ref"]["_q_value"] > 0)
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        d.putValue("(%dx%d)" % (d_ptr["w"], d_ptr["h"]))
    d.putNumChild(0)
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def qdump__QPoint(d, item):
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    x = item.value["xp"]
    y = item.value["yp"]
    # should not be needed, but sometimes yield myns::QVariant::Private::Data::qreal
    x = x.cast(x.type.strip_typedefs())
    y = y.cast(y.type.strip_typedefs())
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    d.putValue("(%s, %s)" % (x, y))
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    d.putNumChild(2)
    if d.isExpanded(item):
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        d.beginChildren(2, x.type.strip_typedefs())
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        d.putItem(Item(x, None, None, "x"))
        d.putItem(Item(y, None, None, "y"))
        d.endChildren()


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def qdump__QPointF(d, item):
    qdump__QPoint(d, item)
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def qdump__QRect(d, item):
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    def pp(l): return select(l >= 0, "+%s" % l, l)
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    x1 = item.value["x1"]
    y1 = item.value["y1"]
    x2 = item.value["x2"]
    y2 = item.value["y2"]
    w = x2 - x1 + 1
    h = y2 - y1 + 1
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    d.putValue("%sx%s%s%s" % (w, h, pp(x1), pp(y1)))
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    d.putNumChild(4)
    if d.isExpanded(item):
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        d.beginChildren(4, x1.type.strip_typedefs())
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        d.putItem(Item(x1, None, None, "x1"))
        d.putItem(Item(y1, None, None, "y1"))
        d.putItem(Item(x2, None, None, "x2"))
        d.putItem(Item(y2, None, None, "y2"))
        d.endChildren()


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def qdump__QRectF(d, item):
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    def pp(l): return select(l >= 0, "+%s" % l, l)
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    x = item.value["xp"]
    y = item.value["yp"]
    w = item.value["w"]
    h = item.value["h"]
    # FIXME: workaround, see QPoint
    x = x.cast(x.type.strip_typedefs())
    y = y.cast(y.type.strip_typedefs())
    w = w.cast(w.type.strip_typedefs())
    h = h.cast(h.type.strip_typedefs())
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    d.putValue("%sx%s%s%s" % (w, h, pp(x), pp(y)))
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    d.putNumChild(4)
    if d.isExpanded(item):
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        d.beginChildren(4, x.type.strip_typedefs())
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        d.putItem(Item(x, None, None, "x"))
        d.putItem(Item(y, None, None, "y"))
        d.putItem(Item(w, None, None, "w"))
        d.putItem(Item(h, None, None, "h"))
        d.endChildren()


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def qdump__QSet(d, item):
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    def hashDataFirstNode(value):
        value = value.cast(hashDataType)
        bucket = value["buckets"]
        e = value.cast(hashNodeType)
        for n in xrange(value["numBuckets"] - 1, -1, -1):
            n = n - 1
            if n < 0:
                break
            if bucket.dereference() != e:
                return bucket.dereference()
            bucket = bucket + 1
        return e;

    def hashDataNextNode(node):
        next = node["next"]
        if next["next"]:
            return next
        d = node.cast(hashDataType.pointer()).dereference()
        numBuckets = d["numBuckets"]
        start = (node["h"] % numBuckets) + 1
        bucket = d["buckets"] + start
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        for n in xrange(numBuckets - start):
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            if bucket.dereference() != next:
                return bucket.dereference()
            bucket += 1
        return node

    keyType = item.value.type.template_argument(0)

    d_ptr = item.value["q_hash"]["d"]
    e_ptr = item.value["q_hash"]["e"]
    n = d_ptr["size"]

    hashDataType = d_ptr.type
    hashNodeType = e_ptr.type

    check(0 <= n and n <= 100 * 1000 * 1000)
    check(d_ptr["ref"]["_q_value"] > 0)

    d.putItemCount(n)
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    d.putNumChild(n)
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    if d.isExpanded(item):
        if n > 1000:
            n = 1000

        isSimpleKey = isSimpleType(keyType)

        node = hashDataFirstNode(item.value)

        innerType = e_ptr.dereference().type
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        d.beginChildren(n, keyType)
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        for i in xrange(n):
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            it = node.dereference().cast(innerType)
            d.beginHash()
            key = it["key"]
            if isSimpleKey:
                d.putType(keyType)
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                d.putItemHelper(Item(key, None, None, None))