a bit more context:
i'm using https://github.com/microsoft/ClearScript to run js from c#, i made a list of methods, classes that are availiable to use in js and now i would like to loop through all of them and generate types

You probably want swagger and NSwag if you're doing a rest api

not rest api

just plain text file with typescript definition

An SG can output non-cs source files afaik.

And if you're doing grpc, you just need to use their compiler

^ thats what i want

i already use grpc lib for it

well it supports generating clients for different languages

https://andrewlock.net/creating-a-source-generator-part-1-creating-an-incremental-source-generator/ i wonder if it will okey

class Foo{ void Bar(){} }
do some reflection magic, generate:

interface Foo {
  bar(): void
}

Are you talking about SGs or reflection

what's your use case

generate typescript types from c# classes

is it able to read comments?

yes

ok, i will try it then

what for

did they fix so i no longer need to restart vs to see new generated code?

nope

Also, you might want to consider using an attribute to denote the types which should be targeted

i'm using ClearScript tags to do it

attributes* not tags

how can i tell an IIncrementalGenerator to generate content, for example html files?

Generator attribute doesn't like "Html" as first parameter

Call AddSource on the context inside RegisterSourceOutput

although actually... i don't know if you can output things other than cs files

Better ask in #598678594750775301 to be safe