System.Text.Json: Fix polymorphic state bug when using ReferenceHandler.IgnoreCycles #111808
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Clear the polymorphic state after ignoring a reference to prevent subsequent object writes from inheriting it.
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| worker1.Office.Staff = [worker1]; | ||
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| await Test_Serialize_And_SerializeAsync(worker1, """{"Office":{"Staff":[null],"Dummy":{}}}""", s_optionsIgnoreCycles); |
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This looks good. Could you also include a test for the same type using ReferenceHandler.Preserve?
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IgnoreCycles and Preserve tests are a bit separated, so I just copied the classes over. I could otherwise just add another two lines in this test if youd like that better.
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[experimenting with copilot reviews] |
This was referenced Jan 28, 2025
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@danmoseley Seems it never provided a review? |
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Judging by the test failures this type |
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Thanks for your patience. Seems like the remaining test failures are unrelated. |
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Thank you for your contribution @yesmey! |
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Clear the polymorphic state after ignoring a reference in an array to prevent subsequent objects from inheriting it.
Add a test which triggered an assertion in
runtime/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/JsonConverter.MetadataHandling.cs
Line 74 in 03b2d3d
and covers the scenario reported in #111790
Fixes #111790