Fix MVVM Toolkit build errors when using C# < 9.0 #4285
Merged
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Outdated suggestions cannot be applied.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.
Fixes #4269 (comment)
PR Type
What kind of change does this PR introduce?
What is the current behavior?
Using
ObservableValidator
orIRecipient<T>
from the MVVM Toolkit causes a build error when using C# < 9.0.What is the new behavior?
Fixed those build warnings. We should only restrict to C# 9 for the explicitly used source generator features.
These two instead don't need any new C# syntax, so they should work just fine even on C# 8.0.
If an even lower version of C# is set, then the two generators will just not run.
PR Checklist
Please check if your PR fulfills the following requirements: