ZacSweers

fun String.extension(): String = removePrefix("hello")
val lambda: (String) -> String = { it.removePrefix("hello") }
val lambdaWithReceiver: String.() -> String = { removePrefix("hello") }

fun function(arg: (String) -> String) {

}
fun function2(arg: String.() -> String) {

}

ZacSweers

We couldn’t find that file to show.

ZacSweers

// Code generated by moshi-kotlin-codegen. Do not edit.
package com.squareup.moshi.kotlin.codgen

import com.squareup.moshi.JsonAdapter
import com.squareup.moshi.JsonDataException
import com.squareup.moshi.JsonReader
import com.squareup.moshi.JsonWriter
import com.squareup.moshi.Moshi
import com.squareup.moshi.Types
import com.squareup.moshi.internal.Util

ZacSweers

// Code generated by moshi-kotlin-codegen. Do not edit.
package com.squareup.moshi.kotlin.codgen

import com.squareup.moshi.JsonAdapter
import com.squareup.moshi.JsonReader
import com.squareup.moshi.JsonWriter
import com.squareup.moshi.Moshi
import com.squareup.moshi.Types
import com.squareup.moshi.internal.Util
import java.lang.NullPointerException

ZacSweers

// Code generated by moshi-kotlin-codegen. Do not edit.
package com.squareup.moshi.kotlin.codgen

import com.squareup.moshi.JsonAdapter
import com.squareup.moshi.JsonReader
import com.squareup.moshi.JsonWriter
import com.squareup.moshi.Moshi
import com.squareup.moshi.Types
import com.squareup.moshi.internal.Util
import java.lang.NullPointerException

ZacSweers

/*
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the "License").  You may not use this file except
 * in compliance with the License.
 *
 * You can obtain a copy of the license at
 * glassfish/bootstrap/legal/CDDLv1.0.txt or
 * https://glassfish.dev.java.net/public/CDDLv1.0.html.
 * See the License for the specific language governing

ZacSweers

/Users/zsweers/dev/android/personal/CatchUp/app/build/generated/source/kapt/debug/io/sweers/catchup/app/CatchUpApplication_HiltComponents.java:188: error: [Dagger/DuplicateBindings] androidx.activity.ComponentActivity is bound multiple times:
  public abstract static class ApplicationC implements ApplicationComponent,
                         ^
      @org.jetbrains.annotations.NotNull @io.sweers.catchup.injection.scopes.PerActivity @Binds androidx.activity.ComponentActivity io.sweers.catchup.injection.ActivityModule.provideComponentActivity(T)
      @org.jetbrains.annotations.NotNull @io.sweers.catchup.injection.scopes.PerActivity @Binds androidx.activity.ComponentActivity io.sweers.catchup.ui.about.AboutActivity.Module.provideComponentActivity(io.sweers.catchup.ui.about.AboutActivity)
      @org.jetbrains.annotations.NotNull @io.sweers.catchup.injection.scopes.PerActivity @Binds androidx.activity.ComponentActivity io.sweers.catchup.ui.activity.MainActivity.ServiceIntegrationModule.provideComponentActivity(io

ZacSweers

package test;

import static com.google.common.truth.Truth.assertThat;

import com.squareup.moshi.JsonAdapter;
import com.squareup.moshi.Moshi;
import org.junit.Test;
import java.io.IOException;

public class MoshiBugReport {

ZacSweers

The Problem

While doing some remote build cache fidelity testing in #66841, I found that our lint analysis tasks were consistently getting cache misses due to an esoteric intermediate proguard file contents change.

After a little digging, I found these files were generated by AGP as a "merged" file of all that project's generated proguard files. This was most notable in projects using Moshi, which generates proguard rules on the fly.

My hunch was that these files were being merged with non-deterministic order, as I couldn't find anything that ensured ordering and this input was purely a file contents check (so the same rules in different order would still constitute a miss).

I was able to verify this was the case via snagging merged proguard.txt files via github actions artifact uploads.

I filed this issue for it here: issuetracker.google.com/issues/266403349 (note it's been made private for some reason).