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fix(_transform): guard against IndexError on bare dict annotation #275

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fix(_transform): guard against IndexError on bare dict annotation #275

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10 changes: 8 additions & 2 deletions src/groq/_utils/_transform.py
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Original file line number Diff line number Diff line change
Expand Up @@ -180,7 +180,10 @@ def _transform_recursive(
return _transform_typeddict(data, stripped_type)

if origin == dict and is_mapping(data):
items_type = get_args(stripped_type)[1]
args = get_args(stripped_type)
if not args:
return data
items_type = args[1]
return {key: _transform_recursive(value, annotation=items_type) for key, value in data.items()}

if (
Expand Down Expand Up @@ -346,7 +349,10 @@ async def _async_transform_recursive(
return await _async_transform_typeddict(data, stripped_type)

if origin == dict and is_mapping(data):
items_type = get_args(stripped_type)[1]
args = get_args(stripped_type)
if not args:
return data
items_type = args[1]
return {key: _transform_recursive(value, annotation=items_type) for key, value in data.items()}

if (
Expand Down
9 changes: 9 additions & 0 deletions tests/test_transform.py
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Original file line number Diff line number Diff line change
Expand Up @@ -453,6 +453,15 @@ async def test_strips_notgiven(use_async: bool) -> None:
assert await transform({"foo_bar": not_given}, Foo1, use_async) == {}


@parametrize
@pytest.mark.asyncio
async def test_bare_dict_annotation_no_indexerror(use_async: bool) -> None:
# A bare `dict` annotation (no type args) previously raised IndexError because
# get_args(dict) returns () and the code unconditionally indexed [1].
result = await transform({"key": {"a": 1}}, Annotated[dict, PropertyInfo(alias="key")], use_async)
assert result == {"key": {"a": 1}}


@parametrize
@pytest.mark.asyncio
async def test_strips_omit(use_async: bool) -> None:
Expand Down