[release/6.0] Support duplicated type names with src gen #58766
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Tagging subscribers to this area: @eiriktsarpalis, @layomia Issue DetailsBackport of #58448 to release/6.0 /cc @steveharter Customer ImpactTestingRisk
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steveharter
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Sep 8, 2021
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cc @danmoseley |
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Approved. Value: Change increases likelihood customers will not fail with this new tech.. Risk: Changes only affect source gen. Roslyn changes reviewed by Sam. Automated tests added. |
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Backport of #58448 to release/6.0
Addresses #57349 for the System.Text.Json generator
Customer Impact
Support an edge case where a given type (by full name) can exist in more than one location. Without this change, any duplicated Types are not generated (the non-wrapped API returns
nullwhen there are conflicts). This allows thepublicversion of a Type to be returned over theinternalversion of the Type, for example.The corresponding issue and code was provided by the Roslyn team. The code wraps the API that resolves a Type name to a Type in order to allow
publicto win overinternal, for example.Testing
A test was added that duplicates types by name. The test failed before the changes were made.
Risk
Low - the corresponding code was provided by Roslyn and was previously tested. In the future, new API(s) will likely be exposed by Roslyn to address this scenario more fully and then this code can be removed.