Collapse redundant collection / string conversions
Recipe ID
org.openrewrite.kotlin.bestpractices.CollapseRedundantConversions$KtRecipeArtifactio.moderne.recipe:recipes-kotlinDrops needless toList()/toMutableList()/toSet()/toTypedArray() round-trips and trimStart().trimEnd()-style chains that allocate one or more intermediate copies. The replacement performs the same conversion in one pass.
Composite recipeProprietary
Add to your build
Get a download tokenThis recipe is Moderne licensed, so the token must belong to a Moderne customer. It replaces YOUR_DOWNLOAD_TOKEN below.
~/.gradle/gradle.properties
codeGenomeUsername=you@example.com
codeGenomeToken=YOUR_DOWNLOAD_TOKEN
build.gradle.kts
plugins {
id("org.openrewrite.rewrite") version("latest.release")
}
rewrite {
activeRecipe("org.openrewrite.kotlin.bestpractices.CollapseRedundantConversions$KtRecipe")
}
repositories {
mavenCentral()
maven {
url = uri("https://artifacts.codegenomeproject.org/maven")
credentials {
username = providers.gradleProperty("codeGenomeUsername").get()
password = providers.gradleProperty("codeGenomeToken").get()
}
}
}
dependencies {
rewrite("io.moderne.recipe:recipes-kotlin:0.5.0")
}
Then run
./gradlew rewriteRunUsage
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.bestpractices.CollapseRedundantConversions$KtRecipeIf the recipe isn’t available locally, install it with:
mod config recipes jar install io.moderne.recipe:recipes-kotlin:RELEASEDefinition
This recipe runs the following recipes in order.
- Use
toSet()instead ofdistinct().toSet()org.openrewrite.kotlin.bestpractices.UseToSetForDistinctThenToSet$KtRecipe - Use
toSet()instead oftoList().toSet()org.openrewrite.kotlin.bestpractices.UseToSetForToListThenToSet$KtRecipe - Use
toList()instead oftoMutableList().toList()org.openrewrite.kotlin.bestpractices.UseToListForToMutableListThenToList$KtRecipe - Use
toTypedArray()instead oftoList().toTypedArray()org.openrewrite.kotlin.bestpractices.UseToTypedArrayForToListThenToTypedArray$KtRecipe - Use
distinct()instead oftoSet().toList()org.openrewrite.kotlin.bestpractices.UseToListForToSetThenToList$KtRecipe - Use
trim()instead oftrimStart().trimEnd()org.openrewrite.kotlin.bestpractices.UseTrimForTrimStartThenTrimEnd$KtRecipe - Use
trim()instead oftrimEnd().trimStart()org.openrewrite.kotlin.bestpractices.UseTrimForTrimEndThenTrimStart$KtRecipe - Drop redundant
String.toString()org.openrewrite.kotlin.bestpractices.UseToStringForStringToString$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