tag-indexed unions #286
Description
Does pydantic-xml currently have tag-indexed unions? I'm trying to deserialize a svg file (~3mb) and because I have big Unions of possible children (all with different/unique tags) it gets very slow as it trys to create a snapshot of every possible child.
Ordered by: cumulative time
List reduced from 180 to 20 due to restriction <20>
ncalls tottime percall cumtime percall filename:lineno(function)
1 0.042 0.042 249.157 249.157 ...\.venv\Lib\site-packages\pydantic_xml\model.py:524(from_xml)
1 0.000 0.000 249.114 249.114 ...\.venv\Lib\site-packages\pydantic_xml\model.py:497(from_xml_tree)
7719/1 0.503 0.000 248.432 248.432 ...\.venv\Lib\site-packages\pydantic_xml\serializers\factories\model.py:188(deserialize)
7648/1 0.084 0.000 248.404 248.404 ...\.venv\Lib\site-packages\pydantic_xml\serializers\factories\homogeneous.py:66(deserialize)
15366/13 6.960 0.000 248.378 19.106 ...\.venv\Lib\site-packages\pydantic_xml\serializers\factories\union.py:110(deserialize)
21033320/146051 104.363 0.000 238.601 0.002 ...\.venv\Lib\site-packages\pydantic_xml\element\element.py:336(create_snapshot)
21033320/146051 19.451 0.000 237.807 0.002 ...\.venv\Lib\site-packages\pydantic_xml\element\element.py:342(<listcomp>)
146051/257 0.317 0.000 218.367 0.850 ...\.venv\Lib\site-packages\pydantic_xml\serializers\factories\model.py:418(deserialize)
21041039 107.107 0.000 115.339 0.000 ...\.venv\Lib\site-packages\pydantic_xml\element\element.py:303(__init__)
21041039 8.231 0.000 8.231 0.000 ...\.venv\Lib\site-packages\pydantic_xml\element\element.py:269(__init__)
7719/1 0.073 0.000 0.682 0.682 ...\.venv\Lib\site-packages\pydantic_xml\element\native\lxml.py:19(from_native)
7719/1 0.013 0.000 0.682 0.682 ...\.venv\Lib\site-packages\pydantic_xml\element\native\lxml.py:29(<listcomp>)
7718 0.587 0.000 0.587 0.000 ...\.venv\Lib\site-packages\pydantic_xml\element\element.py:350(apply_snapshot)
146051 0.180 0.000 0.492 0.000 ...\.venv\Lib\site-packages\pydantic_xml\element\element.py:411(pop_element)
7718 0.015 0.000 0.431 0.000 ...\.venv\Lib\site-packages\pydantic\main.py:669(model_validate)
7718 0.237 0.000 0.416 0.000 {method 'validate_python' of 'pydantic_core._pydantic_core.SchemaValidator' objects}
241849 0.148 0.000 0.305 0.000 ...\.venv\Lib\site-packages\pydantic_xml\serializers\factories\primitive.py:127(deserialize)
146051 0.172 0.000 0.228 0.000 ...\.venv\Lib\site-packages\pydantic_xml\element\element.py:519(strict_search)
249567 0.133 0.000 0.172 0.000 ...\.venv\Lib\site-packages\pydantic_xml\element\element.py:397(pop_attrib)
60504 0.070 0.000 0.142 0.000 ...\.venv\Lib\site-packages\pydantic\_internal\_model_construction.py:277(__instancecheck__)
Example element:
class SVG(Element, Color, Graphics, tag="svg"):
model_config = ConfigDict(extra="forbid")
elements: list[RootChildren] = element()
x: str | None = attr(default=0)
y: str | None = attr(default=0)
width: str | None = attr(default=None)
height: str | None = attr(default=None)
clip_path: str | None = attr(name="clip-path", default=None)
mask: str | None = attr(default=None)
opacity: str | None = attr(default=None)
overflow: str | None = attr(default=None)
preserve_aspect_ratio: str | None = attr(name="preserveAspectRatio", default=None)
version: str | None = attr(default=None)
view_box: str | None = attr(name="viewBox", default=None)
RootChildren: TypeAlias = (
ShapeElements
| GradientElements
| A
| Animate
| AnimateMotion
| AnimateTransform
| ClipPath
| Defs
| Desc
| Filter
| ForeignObject
| G
| Image
| Marker
| Mask
| Metadata
| Pattern
| Set
| Style
| SVG
| Switch
| Symbol
| Text
| Title
| Use
| View
)