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from dataclasses import dataclass, field
from typing import Dict, List, Optional, Type
from xsdata.formats.dataclass.models.elements import XmlType, XmlVar
from xsdata.formats.dataclass.parsers.bases import NodeParser, Parsed
from xsdata.formats.dataclass.parsers.handlers import default_handler
from xsdata.formats.dataclass.parsers.mixins import XmlHandler, XmlNode
from xsdata.formats.dataclass.parsers.nodes.wildcard import WildcardNode
@dataclass
class TreeParser(NodeParser):
"""
Bind xml nodes to a tree of AnyElement objects.
:param handler: Override default XmlHandler
"""
handler: Type[XmlHandler] = field(default=default_handler())
def start(
self,
clazz: Optional[Type],
queue: List[XmlNode],
objects: List[Parsed],
qname: str,
attrs: Dict,
ns_map: Dict,
):
try:
item = queue[-1]
child = item.child(qname, attrs, ns_map, len(objects))
except IndexError:
var = XmlVar(
name=qname,
qname=qname,
xml_type=XmlType.WILDCARD,
index=0,
types=(object,),
clazz=None,
init=True,
mixed=False,
factory=None,
tokens_factory=None,
format=None,
derived=False,
any_type=False,
process_contents="strict",
required=False,
nillable=False,
sequence=None,
default=None,
namespaces=(),
elements={},
wildcards=(),
)
child = WildcardNode(
var=var,
attrs=attrs,
ns_map=ns_map,
position=0,
factory=self.context.class_type.any_element,
)
queue.append(child)
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