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Grouping and joining IncrementalValuesProviders for an incremental source generator
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Erik Smit
35
Reputation points
I am experimenting with Incremental source generators and Interceptors.
This question is related to the use of IncrementalValuesProviders specified in https://github.com/dotnet/roslyn/blob/main/docs/features/incremental-generators.md
The goal is to generate argument checks based on attributes applied to the parameters of a function. For this i have 2 IncrementlValuesProviders, one contains the method declarations of all methods i am interested in. The other contains all method invocations. I want to combine these 2 so that i have a single valuesprovider that has the method declaration and an array of all of it's usages.
This is the flow i am trying to achieve
Currently i have the method declarations and the invocations, i want to group the invocations by method and combine that with the method declarations. With this information i will generate code with Interceptors to intercept all usages of a method. How can i achieve the grouping and combining?
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Christopher Grace 0 Reputation points2025-01-17T05:03:36.2266667+00:00 You should be able to get both the method declarations and invocations using the same SyntaxTreeProvider. This provider's transform delegate should output a tuple. The first value of the tuple is an ImmutableArray of the method declarations, and the second is an ImmutableArray of the invocations. The tuple will be available in your registered source generation method. There you can use linq to join them however you need.
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