fix: Avoid using not-threadsafe arnings.catch_warning

tests/formats/dataclass/parsers/nodes/test_primitive.py

@@ -3,6 +3,7 @@
 from tests.fixtures.artists import Artist
 from xsdata.exceptions import XmlContextError
 from xsdata.formats.dataclass.models.elements import XmlType
+from xsdata.formats.dataclass.parsers.config import ParserConfig
 from xsdata.formats.dataclass.parsers.nodes import PrimitiveNode
 from xsdata.formats.dataclass.parsers.utils import ParserUtils
 from xsdata.utils.testing import XmlMetaFactory, XmlVarFactory
@@ -12,6 +13,7 @@ class PrimitiveNodeTests(TestCase):
     def setUp(self):
         super().setUp()
         self.meta = XmlMetaFactory.create(clazz=Artist)
+        self.config = ParserConfig()
 
     @mock.patch.object(ParserUtils, "parse_var")
     def test_bind(self, mock_parse_var):
@@ -20,22 +22,22 @@ def test_bind(self, mock_parse_var):
             xml_type=XmlType.TEXT, name="foo", types=(int,), format="Nope"
         )
         ns_map = {"foo": "bar"}
-        node = PrimitiveNode(self.meta, var, ns_map)
+        node = PrimitiveNode(self.meta, var, ns_map, self.config)
         objects = []
 
         self.assertTrue(node.bind("foo", "13", "Impossible", objects))
         self.assertEqual(("foo", 13), objects[-1])
 
         mock_parse_var.assert_called_once_with(
-            meta=self.meta, var=var, value="13", ns_map=ns_map
+            meta=self.meta, var=var, config=self.config, value="13", ns_map=ns_map
         )
 
     def test_bind_nillable_content(self):
         var = XmlVarFactory.create(
             xml_type=XmlType.TEXT, name="foo", types=(str,), nillable=False
         )
         ns_map = {"foo": "bar"}
-        node = PrimitiveNode(self.meta, var, ns_map)
+        node = PrimitiveNode(self.meta, var, ns_map, self.config)
         objects = []
 
         self.assertTrue(node.bind("foo", None, None, objects))
@@ -53,7 +55,7 @@ def test_bind_nillable_bytes_content(self):
             nillable=False,
         )
         ns_map = {"foo": "bar"}
-        node = PrimitiveNode(self.meta, var, ns_map)
+        node = PrimitiveNode(self.meta, var, ns_map, self.config)
         objects = []
 
         self.assertTrue(node.bind("foo", None, None, objects))
@@ -66,7 +68,7 @@ def test_bind_nillable_bytes_content(self):
     def test_bind_mixed_with_tail_content(self):
         self.meta.mixed_content = True
         var = XmlVarFactory.create(xml_type=XmlType.TEXT, name="foo", types=(int,))
-        node = PrimitiveNode(self.meta, var, {})
+        node = PrimitiveNode(self.meta, var, {}, self.config)
         objects = []
 
         self.assertTrue(node.bind("foo", "13", "tail", objects))
@@ -76,15 +78,15 @@ def test_bind_mixed_with_tail_content(self):
     def test_bind_mixed_without_tail_content(self):
         self.meta.mixed_content = True
         var = XmlVarFactory.create(xml_type=XmlType.TEXT, name="foo", types=(int,))
-        node = PrimitiveNode(self.meta, var, {})
+        node = PrimitiveNode(self.meta, var, {}, self.config)
         objects = []
 
         self.assertTrue(node.bind("foo", "13", "", objects))
         self.assertEqual(13, objects[-1][1])
 
     def test_child(self):
         var = XmlVarFactory.create(xml_type=XmlType.TEXT, name="foo")
-        node = PrimitiveNode(self.meta, var, {})
+        node = PrimitiveNode(self.meta, var, {}, self.config)
 
         with self.assertRaises(XmlContextError):
             node.child("foo", {}, {}, 0)

tests/formats/dataclass/parsers/nodes/test_standard.py

@@ -3,6 +3,7 @@
 from tests.fixtures.artists import Artist
 from xsdata.exceptions import XmlContextError
 from xsdata.formats.dataclass.models.generics import DerivedElement
+from xsdata.formats.dataclass.parsers.config import ParserConfig
 from xsdata.formats.dataclass.parsers.nodes import StandardNode
 from xsdata.models.enums import DataType
 from xsdata.utils.testing import XmlMetaFactory, XmlVarFactory
@@ -13,34 +14,41 @@ def setUp(self):
         super().setUp()
         self.meta = XmlMetaFactory.create(clazz=Artist)
         self.var = XmlVarFactory.create()
+        self.config = ParserConfig()
 
     def test_bind_simple(self):
         datatype = DataType.INT
-        node = StandardNode(self.meta, self.var, datatype, {}, False, False)
+        node = StandardNode(
+            self.meta, self.var, datatype, {}, self.config, False, False
+        )
         objects = []
 
         self.assertTrue(node.bind("a", "13", None, objects))
         self.assertEqual(("a", 13), objects[-1])
 
     def test_bind_derived(self):
         datatype = DataType.INT
-        node = StandardNode(self.meta, self.var, datatype, {}, False, DerivedElement)
+        node = StandardNode(
+            self.meta, self.var, datatype, {}, self.config, False, DerivedElement
+        )
         objects = []
 
         self.assertTrue(node.bind("a", "13", None, objects))
         self.assertEqual(("a", DerivedElement("a", 13)), objects[-1])
 
     def test_bind_wrapper_type(self):
         datatype = DataType.HEX_BINARY
-        node = StandardNode(self.meta, self.var, datatype, {}, False, DerivedElement)
+        node = StandardNode(
+            self.meta, self.var, datatype, {}, self.config, False, DerivedElement
+        )
         objects = []
 
         self.assertTrue(node.bind("a", "13", None, objects))
         self.assertEqual(("a", DerivedElement(qname="a", value=b"\x13")), objects[-1])
 
     def test_bind_nillable(self):
         datatype = DataType.STRING
-        node = StandardNode(self.meta, self.var, datatype, {}, True, None)
+        node = StandardNode(self.meta, self.var, datatype, {}, self.config, True, None)
         objects = []
 
         self.assertTrue(node.bind("a", None, None, objects))
@@ -52,7 +60,9 @@ def test_bind_nillable(self):
 
     def test_child(self):
         datatype = DataType.STRING
-        node = StandardNode(self.meta, self.var, datatype, {}, False, False)
+        node = StandardNode(
+            self.meta, self.var, datatype, {}, self.config, False, False
+        )
 
         with self.assertRaises(XmlContextError):
             node.child("foo", {}, {}, 0)

tests/formats/dataclass/parsers/test_node.py

@@ -182,7 +182,7 @@ def test_end(self, mock_assemble):
         objects = [("q", "result")]
         queue = []
         var = XmlVarFactory.create(xml_type=XmlType.TEXT, name="foo")
-        queue.append(PrimitiveNode(var, {}, False))
+        queue.append(PrimitiveNode(var, {}, False, parser.config))
 
         self.assertTrue(parser.end(queue, objects, "author", "foobar", None))
         self.assertEqual(0, len(queue))

tests/formats/dataclass/parsers/test_utils.py

@@ -5,6 +5,7 @@
 from xsdata.exceptions import ParserError
 from xsdata.formats.converter import ConverterFactory
 from xsdata.formats.dataclass.context import XmlContext
+from xsdata.formats.dataclass.parsers.config import ParserConfig
 from xsdata.formats.dataclass.parsers.utils import ParserUtils
 from xsdata.models.enums import Namespace, QNames
 from xsdata.utils.testing import FactoryTestCase, XmlMetaFactory, XmlVarFactory
@@ -116,17 +117,23 @@ def test_validate_fixed_value(self):
         var = XmlVarFactory.create("fixed", default=lambda: float("nan"))
         ParserUtils.validate_fixed_value(meta, var, float("nan"))
 
-    def test_parse_var_with_warnings(self):
+    def test_parse_var_with_error(self):
         meta = XmlMetaFactory.create(clazz=TypeA, qname="foo")
         var = XmlVarFactory.create("fixed", default="a")
+        config = ParserConfig()
 
         with warnings.catch_warnings(record=True) as w:
-            result = ParserUtils.parse_var(meta, var, "a", types=[int, float])
+            result = ParserUtils.parse_var(meta, var, config, "a", types=[int, float])
 
         expected = (
             "Failed to convert value for `TypeA.fixed`\n"
             "  `a` is not a valid `int | float`"
         )
         self.assertEqual("a", result)
-
         self.assertEqual(expected, str(w[-1].message))
+
+        config.fail_on_converter_warnings = True
+        with self.assertRaises(ParserError) as cm:
+            ParserUtils.parse_var(meta, var, config, "a", types=[int, float])
+
+        self.assertEqual(expected, str(cm.exception))

tests/formats/dataclass/parsers/test_xml.py

@@ -33,7 +33,7 @@ def test_end(self, mock_emit_event):
         queue = []
         meta = XmlMetaFactory.create(clazz=Artist)
         var = XmlVarFactory.create(xml_type=XmlType.TEXT, name="foo", types=(bool,))
-        queue.append(PrimitiveNode(meta, var, {}))
+        queue.append(PrimitiveNode(meta, var, {}, self.parser.config))
 
         result = self.parser.end(queue, objects, "enabled", "true", None)
         self.assertTrue(result)

xsdata/formats/dataclass/parsers/bases.py

@@ -54,15 +54,11 @@ def parse(
         """
         handler = self.handler(clazz=clazz, parser=self)
 
-        with warnings.catch_warnings():
-            if self.config.fail_on_converter_warnings:
-                warnings.filterwarnings("error", category=ConverterWarning)
-
-            try:
-                ns_map = self.ns_map if ns_map is None else ns_map
-                result = handler.parse(source, ns_map)
-            except (ConverterWarning, SyntaxError) as e:
-                raise ParserError(e)
+        try:
+            ns_map = self.ns_map if ns_map is None else ns_map
+            result = handler.parse(source, ns_map)
+        except SyntaxError as e:
+            raise ParserError(e)
 
         if result is not None:
             return result

xsdata/formats/dataclass/parsers/dict.py

@@ -1,5 +1,6 @@
 import warnings
-from dataclasses import dataclass, field
+from contextlib import suppress
+from dataclasses import dataclass, field, replace
 from typing import Any, Dict, Iterable, List, Optional, Type, Union
 
 from typing_extensions import get_args, get_origin
@@ -41,18 +42,10 @@ def decode(self, data: Union[List, Dict], clazz: Optional[Type[T]] = None) -> T:
             An instance of the specified class representing the decoded content.
         """
         tp = self.verify_type(clazz, data)
+        if not isinstance(data, list):
+            return self.bind_dataclass(data, tp)
 
-        with warnings.catch_warnings():
-            if self.config.fail_on_converter_warnings:
-                warnings.filterwarnings("error", category=ConverterWarning)
-
-            try:
-                if not isinstance(data, list):
-                    return self.bind_dataclass(data, tp)
-
-                return [self.bind_dataclass(obj, tp) for obj in data]  # type: ignore
-            except ConverterWarning as e:
-                raise ParserError(e)
+        return [self.bind_dataclass(obj, tp) for obj in data]  # type: ignore
 
     def verify_type(self, clazz: Optional[Type[T]], data: Union[Dict, List]) -> Type[T]:
         """Verify the given data matches the given clazz.
@@ -206,12 +199,18 @@ def bind_best_dataclass(self, data: Dict, classes: Iterable[Type[T]]) -> T:
         obj = None
         keys = set(data.keys())
         max_score = -1.0
+        config = replace(self.config, fail_on_converter_warnings=True)
+        decoder = DictDecoder(config=config, context=self.context)
+
         for clazz in classes:
             if not self.context.class_type.is_model(clazz):
                 continue
 
             if self.context.local_names_match(keys, clazz):
-                candidate = self.bind_optional_dataclass(data, clazz)
+                candidate = None
+                with suppress(Exception):
+                    candidate = decoder.bind_dataclass(data, clazz)
+
                 score = self.context.class_type.score_object(candidate)
                 if score > max_score:
                     max_score = score
@@ -225,28 +224,6 @@ def bind_best_dataclass(self, data: Dict, classes: Iterable[Type[T]]) -> T:
             f"to any of the {[cls.__qualname__ for cls in classes]}"
         )
 
-    def bind_optional_dataclass(self, data: Dict, clazz: Type[T]) -> Optional[T]:
-        """Bind the input data to the given class type.
-
-        This is a strict process, if there is any warning the process
-        returns None. This method is used to test if te data fit into
-        the class type.
-
-        Args:
-            data: The derived element dictionary
-            clazz: The target class type to bind the input data
-
-        Returns:
-            An instance of the class type representing the parsed content
-            or None if there is any warning or error.
-        """
-        try:
-            with warnings.catch_warnings():
-                warnings.filterwarnings("error", category=ConverterWarning)
-                return self.bind_dataclass(data, clazz)
-        except Exception:
-            return None
-
     def bind_value(
         self,
         meta: XmlMeta,
@@ -328,6 +305,7 @@ def bind_text(self, meta: XmlMeta, var: XmlVar, value: Any) -> Any:
         return ParserUtils.parse_var(
             meta=meta,
             var=var,
+            config=self.config,
             value=value,
             ns_map=EMPTY_MAP,
         )

xsdata/formats/dataclass/parsers/nodes/element.py

@@ -196,6 +196,7 @@ def bind_attr(self, params: Dict, var: XmlVar, value: Any):
         value = ParserUtils.parse_var(
             meta=self.meta,
             var=var,
+            config=self.config,
             value=value,
             ns_map=self.ns_map,
         )
@@ -372,6 +373,7 @@ def bind_text(self, params: Dict, text: Optional[str]) -> bool:
             value = ParserUtils.parse_var(
                 meta=self.meta,
                 var=var,
+                config=self.config,
                 value=text,
                 ns_map=self.ns_map,
             )
@@ -518,7 +520,7 @@ def build_node(
             )
 
         if not var.any_type and not var.is_wildcard:
-            return nodes.PrimitiveNode(self.meta, var, ns_map)
+            return nodes.PrimitiveNode(self.meta, var, ns_map, self.config)
 
         datatype = DataType.from_qname(xsi_type) if xsi_type else None
         derived = var.is_wildcard
@@ -528,6 +530,7 @@ def build_node(
                 var,
                 datatype,
                 ns_map,
+                self.config,
                 var.nillable,
                 derived_factory if derived else None,
             )

xsdata/formats/dataclass/parsers/nodes/primitive.py

@@ -2,6 +2,7 @@
 
 from xsdata.exceptions import XmlContextError
 from xsdata.formats.dataclass.models.elements import XmlMeta, XmlVar
+from xsdata.formats.dataclass.parsers.config import ParserConfig
 from xsdata.formats.dataclass.parsers.mixins import XmlNode
 from xsdata.formats.dataclass.parsers.utils import ParserUtils
 
@@ -13,14 +14,16 @@ class PrimitiveNode(XmlNode):
         meta: The parent xml meta instance
         var: The xml var instance
         ns_map: The element namespace prefix-URI map
+        config: The parser config instance
     """
 
-    __slots__ = "meta", "var", "ns_map"
+    __slots__ = "meta", "var", "ns_map", "config"
 
-    def __init__(self, meta: XmlMeta, var: XmlVar, ns_map: Dict):
+    def __init__(self, meta: XmlMeta, var: XmlVar, ns_map: Dict, config: ParserConfig):
         self.meta = meta
         self.var = var
         self.ns_map = ns_map
+        self.config = config
 
     def bind(
         self,
@@ -45,7 +48,11 @@ def bind(
             Whether the binding process was successful or not.
         """
         obj = ParserUtils.parse_var(
-            meta=self.meta, var=self.var, value=text, ns_map=self.ns_map
+            meta=self.meta,
+            var=self.var,
+            config=self.config,
+            value=text,
+            ns_map=self.ns_map,
         )
 
         if obj is None and not self.var.nillable: