updates

Backend/venv/lib/python3.12/site-packages/fastapi/_compat/shared.py

@@ -0,0 +1,211 @@
+import sys
+import types
+import typing
+from collections import deque
+from dataclasses import is_dataclass
+from typing import (
+    Any,
+    Deque,
+    FrozenSet,
+    List,
+    Mapping,
+    Sequence,
+    Set,
+    Tuple,
+    Type,
+    Union,
+)
+
+from fastapi._compat import may_v1
+from fastapi.types import UnionType
+from pydantic import BaseModel
+from pydantic.version import VERSION as PYDANTIC_VERSION
+from starlette.datastructures import UploadFile
+from typing_extensions import Annotated, get_args, get_origin
+
+# Copy from Pydantic v2, compatible with v1
+if sys.version_info < (3, 9):
+    # Pydantic no longer supports Python 3.8, this might be incorrect, but the code
+    # this is used for is also never reached in this codebase, as it's a copy of
+    # Pydantic's lenient_issubclass, just for compatibility with v1
+    # TODO: remove when dropping support for Python 3.8
+    WithArgsTypes: Tuple[Any, ...] = ()
+elif sys.version_info < (3, 10):
+    WithArgsTypes: tuple[Any, ...] = (typing._GenericAlias, types.GenericAlias)  # type: ignore[attr-defined]
+else:
+    WithArgsTypes: tuple[Any, ...] = (
+        typing._GenericAlias,  # type: ignore[attr-defined]
+        types.GenericAlias,
+        types.UnionType,
+    )  # pyright: ignore[reportAttributeAccessIssue]
+
+PYDANTIC_VERSION_MINOR_TUPLE = tuple(int(x) for x in PYDANTIC_VERSION.split(".")[:2])
+PYDANTIC_V2 = PYDANTIC_VERSION_MINOR_TUPLE[0] == 2
+
+
+sequence_annotation_to_type = {
+    Sequence: list,
+    List: list,
+    list: list,
+    Tuple: tuple,
+    tuple: tuple,
+    Set: set,
+    set: set,
+    FrozenSet: frozenset,
+    frozenset: frozenset,
+    Deque: deque,
+    deque: deque,
+}
+
+sequence_types = tuple(sequence_annotation_to_type.keys())
+
+Url: Type[Any]
+
+
+# Copy of Pydantic v2, compatible with v1
+def lenient_issubclass(
+    cls: Any, class_or_tuple: Union[Type[Any], Tuple[Type[Any], ...], None]
+) -> bool:
+    try:
+        return isinstance(cls, type) and issubclass(cls, class_or_tuple)  # type: ignore[arg-type]
+    except TypeError:  # pragma: no cover
+        if isinstance(cls, WithArgsTypes):
+            return False
+        raise  # pragma: no cover
+
+
+def _annotation_is_sequence(annotation: Union[Type[Any], None]) -> bool:
+    if lenient_issubclass(annotation, (str, bytes)):
+        return False
+    return lenient_issubclass(annotation, sequence_types)  # type: ignore[arg-type]
+
+
+def field_annotation_is_sequence(annotation: Union[Type[Any], None]) -> bool:
+    origin = get_origin(annotation)
+    if origin is Union or origin is UnionType:
+        for arg in get_args(annotation):
+            if field_annotation_is_sequence(arg):
+                return True
+        return False
+    return _annotation_is_sequence(annotation) or _annotation_is_sequence(
+        get_origin(annotation)
+    )
+
+
+def value_is_sequence(value: Any) -> bool:
+    return isinstance(value, sequence_types) and not isinstance(value, (str, bytes))  # type: ignore[arg-type]
+
+
+def _annotation_is_complex(annotation: Union[Type[Any], None]) -> bool:
+    return (
+        lenient_issubclass(
+            annotation, (BaseModel, may_v1.BaseModel, Mapping, UploadFile)
+        )
+        or _annotation_is_sequence(annotation)
+        or is_dataclass(annotation)
+    )
+
+
+def field_annotation_is_complex(annotation: Union[Type[Any], None]) -> bool:
+    origin = get_origin(annotation)
+    if origin is Union or origin is UnionType:
+        return any(field_annotation_is_complex(arg) for arg in get_args(annotation))
+
+    if origin is Annotated:
+        return field_annotation_is_complex(get_args(annotation)[0])
+
+    return (
+        _annotation_is_complex(annotation)
+        or _annotation_is_complex(origin)
+        or hasattr(origin, "__pydantic_core_schema__")
+        or hasattr(origin, "__get_pydantic_core_schema__")
+    )
+
+
+def field_annotation_is_scalar(annotation: Any) -> bool:
+    # handle Ellipsis here to make tuple[int, ...] work nicely
+    return annotation is Ellipsis or not field_annotation_is_complex(annotation)
+
+
+def field_annotation_is_scalar_sequence(annotation: Union[Type[Any], None]) -> bool:
+    origin = get_origin(annotation)
+    if origin is Union or origin is UnionType:
+        at_least_one_scalar_sequence = False
+        for arg in get_args(annotation):
+            if field_annotation_is_scalar_sequence(arg):
+                at_least_one_scalar_sequence = True
+                continue
+            elif not field_annotation_is_scalar(arg):
+                return False
+        return at_least_one_scalar_sequence
+    return field_annotation_is_sequence(annotation) and all(
+        field_annotation_is_scalar(sub_annotation)
+        for sub_annotation in get_args(annotation)
+    )
+
+
+def is_bytes_or_nonable_bytes_annotation(annotation: Any) -> bool:
+    if lenient_issubclass(annotation, bytes):
+        return True
+    origin = get_origin(annotation)
+    if origin is Union or origin is UnionType:
+        for arg in get_args(annotation):
+            if lenient_issubclass(arg, bytes):
+                return True
+    return False
+
+
+def is_uploadfile_or_nonable_uploadfile_annotation(annotation: Any) -> bool:
+    if lenient_issubclass(annotation, UploadFile):
+        return True
+    origin = get_origin(annotation)
+    if origin is Union or origin is UnionType:
+        for arg in get_args(annotation):
+            if lenient_issubclass(arg, UploadFile):
+                return True
+    return False
+
+
+def is_bytes_sequence_annotation(annotation: Any) -> bool:
+    origin = get_origin(annotation)
+    if origin is Union or origin is UnionType:
+        at_least_one = False
+        for arg in get_args(annotation):
+            if is_bytes_sequence_annotation(arg):
+                at_least_one = True
+                continue
+        return at_least_one
+    return field_annotation_is_sequence(annotation) and all(
+        is_bytes_or_nonable_bytes_annotation(sub_annotation)
+        for sub_annotation in get_args(annotation)
+    )
+
+
+def is_uploadfile_sequence_annotation(annotation: Any) -> bool:
+    origin = get_origin(annotation)
+    if origin is Union or origin is UnionType:
+        at_least_one = False
+        for arg in get_args(annotation):
+            if is_uploadfile_sequence_annotation(arg):
+                at_least_one = True
+                continue
+        return at_least_one
+    return field_annotation_is_sequence(annotation) and all(
+        is_uploadfile_or_nonable_uploadfile_annotation(sub_annotation)
+        for sub_annotation in get_args(annotation)
+    )
+
+
+def annotation_is_pydantic_v1(annotation: Any) -> bool:
+    if lenient_issubclass(annotation, may_v1.BaseModel):
+        return True
+    origin = get_origin(annotation)
+    if origin is Union or origin is UnionType:
+        for arg in get_args(annotation):
+            if lenient_issubclass(arg, may_v1.BaseModel):
+                return True
+    if field_annotation_is_sequence(annotation):
+        for sub_annotation in get_args(annotation):
+            if annotation_is_pydantic_v1(sub_annotation):
+                return True
+    return False