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[release/7.0] Fix delegate allocation in CachingContext.GetOrAddJsonTypeInfo #80513

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carlossanlop merged 3 commits into from
Jan 12, 2023
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[release/7.0] Fix delegate allocation in CachingContext.GetOrAddJsonTypeInfo #80513

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6884cee
Fix delegate allocation in CachingContext.GetOrAddJsonTypeInfo (#80437)
stephentoub Jan 11, 2023
4c8bc33
Ensure CachingContext.Options isn't being trimmed away.
eiriktsarpalis Jan 12, 2023
81a7358
Update servicing version
eiriktsarpalis Jan 12, 2023
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Fix delegate allocation in CachingContext.GetOrAddJsonTypeInfo (#80437) 
* Fix delegate allocation in CachingContext.GetOrAddJsonTypeInfo

* Address PR feedback
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@stephentoub @eiriktsarpalis
stephentoub authored and eiriktsarpalis committed Jan 11, 2023
commit 6884ceea9edded67c786c1532ef64f60026f42d8
6 changes: 5 additions & 1 deletion ...ries/System.Text.Json/src/System/Text/Json/Serialization/JsonSerializerOptions.Caching.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -141,18 +141,22 @@ internal void ClearCaches()
internal sealed class CachingContext
{
private readonly ConcurrentDictionary<Type, JsonTypeInfo?> _jsonTypeInfoCache = new();
private readonly Func<Type, JsonTypeInfo?> _jsonTypeInfoFactory;

public CachingContext(JsonSerializerOptions options)
{
Options = options;

_jsonTypeInfoFactory = options.GetTypeInfoNoCaching;
}

public JsonSerializerOptions Options { get; }
// Property only accessed by reflection in testing -- do not remove.
// If changing please ensure that src/ILLink.Descriptors.LibraryBuild.xml is up-to-date.
public int Count => _jsonTypeInfoCache.Count;

public JsonTypeInfo? GetOrAddJsonTypeInfo(Type type) => _jsonTypeInfoCache.GetOrAdd(type, Options.GetTypeInfoNoCaching);
public JsonTypeInfo? GetOrAddJsonTypeInfo(Type type) => _jsonTypeInfoCache.GetOrAdd(type, _jsonTypeInfoFactory);

public bool TryGetJsonTypeInfo(Type type, [NotNullWhen(true)] out JsonTypeInfo? typeInfo) => _jsonTypeInfoCache.TryGetValue(type, out typeInfo);

public void Clear()
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