Find Flow operator antipatterns
Recipe ID
org.openrewrite.kotlin.coroutines.FindFlowAntiPatterns$KtRecipeArtifact
io.moderne.recipe:recipes-kotlinFlow chains where operator order, sharing configuration, or terminal placement undermines the intended behavior — collapsible map.map / filter.filter, flowOn past a terminal, stateIn/shareIn without an explicit timeout, Flow.collect inside @Composable, etc.
Usage
This recipe has no required configuration options. You’ll need the Moderne CLI configured before running the command below.
mod run . --recipe org.openrewrite.kotlin.coroutines.FindFlowAntiPatterns$KtRecipeIf the recipe isn’t available locally, install it with:
mod config recipes jar install io.moderne.recipe:recipes-kotlin:0.2.0Definition
This recipe runs the following recipes in order.
- Find
Flow.map { } .map { }chainsorg.openrewrite.kotlin.coroutines.FindFlowMapMapChain$KtRecipe - Find
Flow.filter { } .filter { }chainsorg.openrewrite.kotlin.coroutines.FindFlowFilterFilterChain$KtRecipe - Find
Flow.flowOnplaced after a terminal operatororg.openrewrite.kotlin.coroutines.FindFlowOnAfterTerminal$KtRecipe - Find
stateInwithSharingStarted.Eagerlyor unparameterized startorg.openrewrite.kotlin.coroutines.FindStateInWithoutTimeout$KtRecipe - Find
shareIncalls without a timeout-parameterized startorg.openrewrite.kotlin.coroutines.FindShareInWithoutTimeout$KtRecipe - Find
Flow.collectcalls inside a@Composableorg.openrewrite.kotlin.coroutines.FindFlowCollectInsideCompose$KtRecipe - Find
debounce(...).distinctUntilChanged()patternsorg.openrewrite.kotlin.coroutines.FindDebounceBeforeDistinctUntilChanged$KtRecipe - Find
flowOf(...)calls — verify sizeorg.openrewrite.kotlin.coroutines.FindFlowOfWithVararg$KtRecipe - Find
callbackFlow { }blocks without anawaitClose { }terminatororg.openrewrite.kotlin.coroutines.FindCallbackFlowWithoutAwaitClose$KtRecipe
Data tables
Structured output this recipe can produce.
- Source files that had resultsSource files that were modified by the recipe run.
org.openrewrite.table.SourcesFileResults - Source files that had search resultsSearch results that were found during the recipe run.
org.openrewrite.table.SearchResults - Source files that errored on a recipeThe details of all errors produced by a recipe run.
org.openrewrite.table.SourcesFileErrors - Recipe performanceStatistics used in analyzing the performance of recipes.
org.openrewrite.table.RecipeRunStats