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Rewire polymorphism metadata to the contract model #71346

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Jun 28, 2022
Merged

Rewire polymorphism metadata to the contract model #71346

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865fb74
Rewire polymorphism metadata to the contract model
eiriktsarpalis Jun 27, 2022
c86bdf6
fix file ordering
eiriktsarpalis Jun 27, 2022
1e7147c
Expand test coverage
eiriktsarpalis Jun 27, 2022
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392 changes: 188 additions & 204 deletions src/libraries/System.Text.Json/ref/System.Text.Json.cs
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3 changes: 3 additions & 0 deletions src/libraries/System.Text.Json/src/Resources/Strings.resx
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Original file line number Diff line number Diff line change
Expand Up @@ -665,4 +665,7 @@
<data name="JsonTypeInfoUsedButTypeInfoResolverNotSet" xml:space="preserve">
<value>JsonTypeInfo metadata references a JsonSerializerOptions instance that doesn't specify a TypeInfoResolver.</value>
</data>
<data name="JsonPolymorphismOptionsAssociatedWithDifferentJsonTypeInfo" xml:space="preserve">
<value>Parameter already associated with a different JsonTypeInfo instance.</value>
</data>
</root>
9 changes: 4 additions & 5 deletions src/libraries/System.Text.Json/src/System.Text.Json.csproj
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
<Project Sdk="Microsoft.NET.Sdk">
<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
<TargetFrameworks>$(NetCoreAppCurrent);$(NetCoreAppMinimum);netstandard2.0;$(NetFrameworkMinimum)</TargetFrameworks>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
Expand Down Expand Up @@ -123,12 +123,13 @@ The System.Text.Json library is built-in as part of the shared framework in .NET
<Compile Include="System\Text\Json\Serialization\JsonUnknownDerivedTypeHandling.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\DefaultJsonTypeInfoResolver.Converters.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\DefaultJsonTypeInfoResolver.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\JsonTypeInfoResolver.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\IJsonTypeInfoResolver.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\JsonDerivedType.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\JsonPolymorphismOptions.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\JsonTypeInfoResolver.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\JsonTypeInfoKind.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\CustomJsonTypeInfoOfT.cs" />
<Compile Include="System\Text\Json\Serialization\PolymorphicSerializationState.cs" />
<Compile Include="System\Text\Json\Serialization\JsonPolymorphicTypeConfiguration.cs" />
<Compile Include="System\Text\Json\Serialization\ReferenceEqualsWrapper.cs" />
<Compile Include="System\Text\Json\Serialization\ConverterStrategy.cs" />
<Compile Include="System\Text\Json\Serialization\ConfigurationList.cs" />
Expand Down Expand Up @@ -237,10 +238,8 @@ The System.Text.Json library is built-in as part of the shared framework in .NET
<Compile Include="System\Text\Json\Serialization\JsonSerializerOptions.cs" />
<Compile Include="System\Text\Json\Serialization\JsonStringEnumConverter.cs" />
<Compile Include="System\Text\Json\Serialization\JsonUnknownTypeHandling.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\AttributePolymorphicTypeConfiguration.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\FSharpCoreReflectionProxy.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\DefaultValueHolder.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\IJsonPolymorphicTypeConfiguration.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\JsonCollectionInfoValuesOfTCollection.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\JsonMetadataServices.Collections.cs" />
<Compile Include="System\Text\Json\Serialization\Metadata\JsonMetadataServices.Converters.cs" />
Expand Down
4 changes: 0 additions & 4 deletions src/libraries/System.Text.Json/src/System/Text/Json/Serialization/ConfigurationList.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,6 @@ public ConfigurationList(IList<TItem>? source = null)

protected abstract bool IsLockedInstance { get; }
protected abstract void VerifyMutable();
protected virtual void OnItemAdded(TItem item) { }

public TItem this[int index]
{
Expand All @@ -39,7 +38,6 @@ public TItem this[int index]

VerifyMutable();
_list[index] = value;
OnItemAdded(value);
}
}

Expand All @@ -56,7 +54,6 @@ public void Add(TItem item)

VerifyMutable();
_list.Add(item);
OnItemAdded(item);
}

public void Clear()
Expand Down Expand Up @@ -94,7 +91,6 @@ public void Insert(int index, TItem item)

VerifyMutable();
_list.Insert(index, item);
OnItemAdded(item);
}

public bool Remove(TItem item)
Expand Down
246 changes: 0 additions & 246 deletions ...s/System.Text.Json/src/System/Text/Json/Serialization/JsonPolymorphicTypeConfiguration.cs
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21 changes: 13 additions & 8 deletions ...System.Text.Json/src/System/Text/Json/Serialization/JsonSerializer.Read.HandleMetadata.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,10 +11,15 @@ namespace System.Text.Json
{
public static partial class JsonSerializer
{
internal static readonly byte[] s_idPropertyName = "$id"u8.ToArray();
internal static readonly byte[] s_refPropertyName = "$ref"u8.ToArray();
internal static readonly byte[] s_typePropertyName = "$type"u8.ToArray();
internal static readonly byte[] s_valuesPropertyName = "$values"u8.ToArray();
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internal const string IdPropertyName = "$id";
internal const string RefPropertyName = "$ref";
internal const string TypePropertyName = "$type";
internal const string ValuesPropertyName = "$values";

internal static readonly byte[] s_idPropertyName = Encoding.UTF8.GetBytes(IdPropertyName);
internal static readonly byte[] s_refPropertyName = Encoding.UTF8.GetBytes(RefPropertyName);
internal static readonly byte[] s_typePropertyName = Encoding.UTF8.GetBytes(TypePropertyName);
internal static readonly byte[] s_valuesPropertyName = Encoding.UTF8.GetBytes(ValuesPropertyName);

internal static bool TryReadMetadata(JsonConverter converter, JsonTypeInfo jsonTypeInfo, ref Utf8JsonReader reader, ref ReadStack state)
{
Expand Down Expand Up @@ -97,7 +102,7 @@ internal static bool TryReadMetadata(JsonConverter converter, JsonTypeInfo jsonT
break;

case MetadataPropertyName.Type:
state.Current.JsonPropertyName = jsonTypeInfo.PolymorphicTypeResolver?.CustomTypeDiscriminatorPropertyNameUtf8 ?? s_typePropertyName;
state.Current.JsonPropertyName = jsonTypeInfo.PolymorphicTypeResolver?.TypeDiscriminatorPropertyNameUtf8 ?? s_typePropertyName;

if (jsonTypeInfo.PolymorphicTypeResolver is null)
{
Expand Down Expand Up @@ -219,7 +224,7 @@ internal static bool IsMetadataPropertyName(ReadOnlySpan<byte> propertyName, Pol
{
return
(propertyName.Length > 0 && propertyName[0] == '$') ||
(resolver?.CustomTypeDiscriminatorPropertyNameUtf8?.AsSpan().SequenceEqual(propertyName) == true);
(resolver?.TypeDiscriminatorPropertyNameUtf8?.AsSpan().SequenceEqual(propertyName) == true);
}

internal static MetadataPropertyName GetMetadataPropertyName(ReadOnlySpan<byte> propertyName, PolymorphicTypeResolver? resolver)
Expand All @@ -245,7 +250,7 @@ internal static MetadataPropertyName GetMetadataPropertyName(ReadOnlySpan<byte>
}
break;

case 5 when resolver?.CustomTypeDiscriminatorPropertyNameUtf8 is null:
case 5 when resolver?.TypeDiscriminatorPropertyNameUtf8 is null:
if (propertyName[1] == 't' &&
propertyName[2] == 'y' &&
propertyName[3] == 'p' &&
Expand All @@ -269,7 +274,7 @@ internal static MetadataPropertyName GetMetadataPropertyName(ReadOnlySpan<byte>
}
}

if (resolver?.CustomTypeDiscriminatorPropertyNameUtf8 is byte[] customTypeDiscriminator &&
if (resolver?.TypeDiscriminatorPropertyNameUtf8 is byte[] customTypeDiscriminator &&
propertyName.SequenceEqual(customTypeDiscriminator))
{
return MetadataPropertyName.Type;
Expand Down
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