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Add JSON null support for the built-in (ReadOnly)Memory converters. #95275

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merged 2 commits into from
Nov 28, 2023
Merged

Add JSON null support for the built-in (ReadOnly)Memory converters. #95275

merged 2 commits into from
Nov 28, 2023

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eiriktsarpalis
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Fix #95267.

@ghost ghost assigned eiriktsarpalis Nov 27, 2023
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ghost commented Nov 27, 2023

Tagging subscribers to this area: @dotnet/area-system-text-json, @gregsdennis
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Issue Details

Fix #95267.

Author: eiriktsarpalis
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area-System.Text.Json
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@eiriktsarpalis eiriktsarpalis added this to the 9.0.0 milestone Nov 27, 2023
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eiriktsarpalis commented Nov 27, 2023
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...tem.Text.Json/src/System/Text/Json/Serialization/Converters/JsonMetadataServicesConverter.cs
Converter = converter;
ConverterStrategy = converter.ConverterStrategy;
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This change adds some wiring that was being dropped so far.

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I was about to ask :) Does that mean there's another bug that was lurking and this was fixing?

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Correct, it was surfaced with the newly added tests.

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For context this is a converter wrapper type that is being used by the source generator APIs. The logic I just added was copied from a similar wrapper type being used internally:

runtime/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Converters/CastingConverter.cs

Lines 27 to 36 in acf7c85

_sourceConverter = sourceConverter;
IsInternalConverter = sourceConverter.IsInternalConverter;
IsInternalConverterForNumberType = sourceConverter.IsInternalConverterForNumberType;
ConverterStrategy = sourceConverter.ConverterStrategy;
CanBePolymorphic = sourceConverter.CanBePolymorphic;
// Ensure HandleNull values reflect the exact configuration of the source converter
HandleNullOnRead = sourceConverter.HandleNullOnRead;
HandleNullOnWrite = sourceConverter.HandleNullOnWrite;
HandleNull = sourceConverter.HandleNullOnWrite;

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jozkee commented Nov 27, 2023

Should this be backported to 8.0.x?

This was referenced Nov 27, 2023
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@eiriktsarpalis eiriktsarpalis merged commit fe79ce8 into dotnet:main Nov 28, 2023
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/backport to release/8.0-staging

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Started backporting to release/8.0-staging: https://github.com/dotnet/runtime/actions/runs/7019012556

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@stephentoub stephentoub stephentoub left review comments

@jozkee jozkee jozkee approved these changes

@tarekgh tarekgh tarekgh approved these changes

@krwq krwq Awaiting requested review from krwq

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Successfully merging this pull request may close these issues.

JsonConverter for {ReadOnly}Memory doesn't deserialize nulls
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@eiriktsarpalis @jozkee @stephentoub @tarekgh