Update reflection vs source generation documentation #49542
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Clarify source generation limitations regarding reference preservation in deserialization.
dotnet-policy-service
bot
added
dotnet-fundamentals/svc
community-contribution
eiriktsarpalis
requested changes
Oct 31, 2025
There was a problem hiding this comment.
This is not entirely accurate, reference preservation is not supported when constructor parameters are present in general. This is because of a fundamental bootstrapping issue, you can't create a constructor parameter that contains a circular reference to the constructed value if the value hasn't been constructed yet.
The source generator specific issue is that init and required members are encoded as constructor parameters.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Clarify source generation limitations regarding reference preservation in deserialization.
Internal previews