Skip to content

Moved call to TryLoadGenericMetaTypeNullability #71851

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
buyaa-n merged 3 commits into from
Jul 12, 2022
Merged

Moved call to TryLoadGenericMetaTypeNullability #71851

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
a42ec6d
Moved call to TryLoadGenericMetaTypeNullability
ropufu Jul 8, 2022
ae1279c
Added nullability state checks.
ropufu Jul 11, 2022
da9d9d4
Apply suggestions from code review
buyaa-n Jul 11, 2022
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
18 changes: 9 additions & 9 deletions src/libraries/System.Private.CoreLib/src/System/Reflection/NullabilityInfoContext.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -325,7 +325,14 @@ private static NotAnnotatedStatus PopulateAnnotationInfo(IList<CustomAttributeDa
private NullabilityInfo GetNullabilityInfo(MemberInfo memberInfo, Type type, NullableAttributeStateParser parser)
{
int index = 0;
return GetNullabilityInfo(memberInfo, type, parser, ref index);
NullabilityInfo nullability = GetNullabilityInfo(memberInfo, type, parser, ref index);

if (!type.IsValueType && nullability.ReadState != NullabilityState.Unknown)
{
TryLoadGenericMetaTypeNullability(memberInfo, nullability);
}

return nullability;
}

private NullabilityInfo GetNullabilityInfo(MemberInfo memberInfo, Type type, NullableAttributeStateParser parser, ref int index)
Expand Down Expand Up @@ -379,14 +386,7 @@ private NullabilityInfo GetNullabilityInfo(MemberInfo memberInfo, Type type, Nul
}
}

NullabilityInfo nullability = new NullabilityInfo(type, state, state, elementState, genericArgumentsState);

if (!type.IsValueType && state != NullabilityState.Unknown)
{
TryLoadGenericMetaTypeNullability(memberInfo, nullability);
}

return nullability;
return new NullabilityInfo(type, state, state, elementState, genericArgumentsState);
}

private static NullableAttributeStateParser CreateParser(IList<CustomAttributeData> customAttributes)
Expand Down
71 changes: 71 additions & 0 deletions src/libraries/System.Runtime/tests/System/Reflection/NullabilityInfoContextTests.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1089,6 +1089,67 @@ public void TestNestedGenericInheritanceWithMultipleParameters()
Assert.Equal(NullabilityState.NotNull, item3Info.ElementType!.ReadState);
Assert.Equal(NullabilityState.NotNull, item3Info.ElementType.WriteState);
}

[Fact]
[SkipOnMono("Nullability attributes trimmed on Mono")]
public void TestNullabilityInfoCreationOnPropertiesWithNestedGenericTypeArguments()
{
Type type = typeof(TypeWithPropertiesNestingItsGenericTypeArgument<int>);

NullabilityInfo shallow1Info = nullabilityContext.Create(type.GetProperty("Shallow1")!);
NullabilityInfo deep1Info = nullabilityContext.Create(type.GetProperty("Deep1")!);
NullabilityInfo deep2Info = nullabilityContext.Create(type.GetProperty("Deep2")!);
NullabilityInfo deep3Info = nullabilityContext.Create(type.GetProperty("Deep3")!);
NullabilityInfo deep4Info = nullabilityContext.Create(type.GetProperty("Deep4")!);
NullabilityInfo deep5Info = nullabilityContext.Create(type.GetProperty("Deep5")!);

//public Tuple<T>? Shallow1 { get; set; }
NullabilityInfo info = shallow1Info;
Assert.Equal(1, info.GenericTypeArguments.Length);
Assert.Equal(NullabilityState.Nullable, info.GenericTypeArguments[0].ReadState);

//public Tuple<Tuple<T>>? Deep1 { get; set; }
info = deep1Info;
Assert.Equal(1, info.GenericTypeArguments.Length);
Assert.Equal(1, info.GenericTypeArguments[0].GenericTypeArguments.Length);
Assert.Equal(NullabilityState.NotNull, info.GenericTypeArguments[0].ReadState);
Assert.Equal(NullabilityState.Nullable, info.GenericTypeArguments[0].GenericTypeArguments[0].ReadState);

//public Tuple<Tuple<T>, int>? Deep2 { get; set; }
info = deep2Info;
Assert.Equal(2, info.GenericTypeArguments.Length);
Assert.Equal(1, info.GenericTypeArguments[0].GenericTypeArguments.Length);
Assert.Equal(NullabilityState.NotNull, info.GenericTypeArguments[0].ReadState);
Assert.Equal(NullabilityState.NotNull, info.GenericTypeArguments[1].ReadState);
Assert.Equal(NullabilityState.Nullable, info.GenericTypeArguments[0].GenericTypeArguments[0].ReadState);

//public Tuple<int?, Tuple<T>>? Deep3 { get; set; }
info = deep3Info;
Assert.Equal(2, info.GenericTypeArguments.Length);
Assert.Equal(1, info.GenericTypeArguments[1].GenericTypeArguments.Length);
Assert.Equal(NullabilityState.Nullable, info.GenericTypeArguments[0].ReadState);
Assert.Equal(NullabilityState.NotNull, info.GenericTypeArguments[1].ReadState);
Assert.Equal(NullabilityState.Nullable, info.GenericTypeArguments[1].GenericTypeArguments[0].ReadState);

//public Tuple<int, int?, Tuple<T>>? Deep4 { get; set; }
info = deep4Info;
Assert.Equal(3, info.GenericTypeArguments.Length);
Assert.Equal(1, info.GenericTypeArguments[2].GenericTypeArguments.Length);
Assert.Equal(NullabilityState.NotNull, info.GenericTypeArguments[0].ReadState);
Assert.Equal(NullabilityState.Nullable, info.GenericTypeArguments[1].ReadState);
Assert.Equal(NullabilityState.NotNull, info.GenericTypeArguments[2].ReadState);
Assert.Equal(NullabilityState.Nullable, info.GenericTypeArguments[2].GenericTypeArguments[0].ReadState);

//public Tuple<int, int, Tuple<T, int>?>? Deep5 { get; set; }
info = deep5Info;
Assert.Equal(3, info.GenericTypeArguments.Length);
Assert.Equal(2, info.GenericTypeArguments[2].GenericTypeArguments.Length);
Assert.Equal(NullabilityState.NotNull, info.GenericTypeArguments[0].ReadState);
Assert.Equal(NullabilityState.NotNull, info.GenericTypeArguments[1].ReadState);
Assert.Equal(NullabilityState.Nullable, info.GenericTypeArguments[2].ReadState);
Assert.Equal(NullabilityState.Nullable, info.GenericTypeArguments[2].GenericTypeArguments[0].ReadState);
Assert.Equal(NullabilityState.NotNull, info.GenericTypeArguments[2].GenericTypeArguments[1].ReadState);
}
}

#pragma warning disable CS0649, CS0067, CS0414
Expand Down Expand Up @@ -1348,4 +1409,14 @@ public DerivesFromTupleOfNestedGenerics(List<string[]> item1, Dictionary<object[
{
}
}

public class TypeWithPropertiesNestingItsGenericTypeArgument<T>
{
public Tuple<T>? Shallow1 { get; set; }
public Tuple<Tuple<T>>? Deep1 { get; set; }
public Tuple<Tuple<T>, int>? Deep2 { get; set; }
public Tuple<int?, Tuple<T>>? Deep3 { get; set; }
public Tuple<int, int?, Tuple<T?>>? Deep4 { get; set; }
public Tuple<int, int, Tuple<T, int>?>? Deep5 { get; set; }
}
}