Add ability to generate a ContributesBinding baseline?

[handstandsam]

Could you generate a file that contains the following (see snippet) using

anvil/compiler/src/main/java/com/squareup/anvil/compiler/codegen/BindingModuleGenerator.kt

Lines 58 to 60 in aa24f31

	private val contributedBindingClasses = mutableListOf<ClassReference>()
	private val contributedMultibindingClasses = mutableListOf<ClassReference>()
	private val contributedModuleClasses = mutableListOf<ClassReference>()

?

@AppScope
something.Cool <- something.CoolImpl
com.ReplaceMe <- com.ReplaceMeImpl (**REPLACED**) <- com.IReplacedYou // Calls out what it is replacing

@ActivityScope
something.Else <- something.ElseImpl
standalone.Impl <- standalone.Impl // Provided as a concrete type

This sort of baseline would be incredibly useful in many cases and for debugging.

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Writing out replaces is also something that would be nice to call out in bindings. I've seen bugs and issues come up when it wasn't known that a replaces was happening.

This file could be generated per module.

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This file would get noisy in Git. Maybe just having the replaces only in the baseline by default would be good?

[ZacSweers]

is baseline the right word for this? Seems more like something similar to compose's compiler reports.

Sidenote - BindingModuleGenerator.kt is going away soon

[handstandsam]

I wanted to call it baseline because like Android lint or dependency-guard, I'd want to see in source control that my baseline changed.

This is because it's so easy to introduce a replaces and have no idea it's happening.

I was on a project previously where an important upgrade checking feature was being replaced by a fake implementation and it was undiscovered for a year.

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For my use case, a report could be useful, but wouldn't help me automatically detect these sorts of changes.

[ZacSweers]

So you want something like a lock file for replacements?

[handstandsam]

Yes, and for ordering/priority.

[ZacSweers]

tbh this is probably a non-starter. See google/ksp#1677

[handstandsam]

Thanks for linking that issue. Makes sense, but that's unfortunate.

[RBusarow]

The KSP issue above only applies to KSP. This is still on the table for embedded mode.