Collapse filter { p }.<terminal>() chains

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.performance.CollapseFilterTerminals$KtRecipe

If the recipe isn’t available locally, install it with:

mod config recipes jar install io.moderne.recipe:recipes-kotlin:0.2.0

Definition

This recipe runs the following recipes in order.

• Use first { predicate } instead of filter { predicate }.first()org.openrewrite.kotlin.performance.UseFirstWithPredicate$KtRecipe
• Use last { predicate } instead of filter { predicate }.last()org.openrewrite.kotlin.performance.UseLastWithPredicate$KtRecipe
• Use count { predicate } instead of filter { predicate }.count()org.openrewrite.kotlin.performance.UseCountWithPredicate$KtRecipe
• Use any { predicate } instead of filter { predicate }.isNotEmpty()org.openrewrite.kotlin.performance.UseAnyWithPredicate$KtRecipe
• Use none { predicate } instead of filter { predicate }.isEmpty()org.openrewrite.kotlin.performance.UseNoneWithPredicate$KtRecipe
• Use firstOrNull { predicate } instead of filter { predicate }.firstOrNull()org.openrewrite.kotlin.performance.UseFirstOrNullWithPredicate$KtRecipe
• Use lastOrNull { predicate } instead of filter { predicate }.lastOrNull()org.openrewrite.kotlin.performance.UseLastOrNullWithPredicate$KtRecipe
• Use single { predicate } instead of filter { predicate }.single()org.openrewrite.kotlin.performance.UseSingleWithPredicate$KtRecipe
• Use singleOrNull { predicate } instead of filter { predicate }.singleOrNull()org.openrewrite.kotlin.performance.UseSingleOrNullWithPredicate$KtRecipe
• Use any { predicate } instead of filter { predicate }.any()org.openrewrite.kotlin.performance.UseAnyWithPredicateInsteadOfFilterAny$KtRecipe
• Use none { predicate } instead of filter { predicate }.none()org.openrewrite.kotlin.performance.UseNoneWithPredicateInsteadOfFilterNone$KtRecipe
• Use sumOf { selector } instead of map { selector }.sum()org.openrewrite.kotlin.performance.UseSumOfWithSelector$KtRecipe
• Use maxOf { selector } instead of map { selector }.max()org.openrewrite.kotlin.performance.UseMaxOfWithSelector$KtRecipe
• Use minOf { selector } instead of map { selector }.min()org.openrewrite.kotlin.performance.UseMinOfWithSelector$KtRecipe
• Use mapNotNull { f } instead of map { f }.filterNotNull()org.openrewrite.kotlin.performance.UseMapNotNullForMapFilterNotNull$KtRecipe
• Use firstNotNullOf { f } instead of mapNotNull { f }.first()org.openrewrite.kotlin.performance.UseFirstNotNullOfForMapFirst$KtRecipe
• Use firstNotNullOfOrNull { f } instead of mapNotNull { f }.firstOrNull()org.openrewrite.kotlin.performance.UseFirstNotNullOfOrNullForMapFirstOrNull$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