Properly use declaration-site type variance for well-known types
org.openrewrite.staticanalysis.CommonDeclarationSiteTypeVariances
When using a method parameter like Function<IN, OUT>
, it should rather be Function<? super IN, ? extends OUT>
. This recipe checks for method parameters of well-known types.
Tags
Recipe source
GitHub, Issue Tracker, Maven Central
groupId: org.openrewrite.recipe
artifactId: rewrite-static-analysis
version: 1.12.0
Data Tables
Source files that had results
org.openrewrite.table.SourcesFileResults
Source files that were modified by the recipe run.
Column Name | Description |
---|---|
Source path before the run | The source path of the file before the run. |
Source path after the run | A recipe may modify the source path. This is the path after the run. |
Parent of the recipe that made changes | In a hierarchical recipe, the parent of the recipe that made a change. Empty if this is the root of a hierarchy or if the recipe is not hierarchical at all. |
Recipe that made changes | The specific recipe that made a change. |
Estimated time saving | An estimated effort that a developer to fix manually instead of using this recipe, in unit of seconds. |
Cycle | The recipe cycle in which the change was made. |
Source files that errored on a recipe
org.openrewrite.table.SourcesFileErrors
The details of all errors produced by a recipe run.
Column Name | Description |
---|---|
Source path | The file that failed to parse. |
Recipe that made changes | The specific recipe that made a change. |
Stack trace | The stack trace of the failure. |
Recipe performance
org.openrewrite.table.RecipeRunStats
Statistics used in analyzing the performance of recipes.
Column Name | Description |
---|---|
The recipe | The recipe whose stats are being measured both individually and cumulatively. |
Source file count | The number of source files the recipe ran over. |
Source file changed count | The number of source files which were changed in the recipe run. Includes files created, deleted, and edited. |
Cumulative scanning time | The total time spent across the scanning phase of this recipe. |
99th percentile scanning time | 99 out of 100 scans completed in this amount of time. |
Max scanning time | The max time scanning any one source file. |
Cumulative edit time | The total time spent across the editing phase of this recipe. |
99th percentile edit time | 99 out of 100 edits completed in this amount of time. |
Max edit time | The max time editing any one source file. |
Usage
This recipe has no required configuration options. It can be activated by adding a dependency on org.openrewrite.recipe:rewrite-static-analysis:1.12.0
in your build file or by running a shell command (in which case no build changes are needed):
Add the following to your
build.gradle
file:
Run
gradle rewriteRun
to run the recipe.
Definition
Properly use declaration-site type variance
variantTypes:
[java.util.function.Consumer<IN>, java.util.function.BiPredicate<IN, IN>, java.util.function.DoubleFunction<OUT>, java.util.function.Function<IN, OUT>, java.util.function.IntFunction<OUT>, java.util.function.LongFunction<OUT>, java.util.function.ObjDoubleConsumer<IN>, java.util.function.ObjIntConsumer<IN>, java.util.function.ObjLongConsumer<IN>, java.util.function.Predicate<IN>, java.util.function.Supplier<OUT>, java.util.function.ToDoubleBiFunction<IN, IN>, java.util.function.ToDoubleFunction<IN>, java.util.function.ToIntBiFunction<IN, IN>, java.util.function.ToIntFunction<IN>, java.util.function.ToLongBiFunction<IN, IN>, java.util.function.ToLongFunction<IN>]
See how this recipe works across multiple open-source repositories
The community edition of the Moderne platform enables you to easily run recipes across thousands of open-source repositories.
Please contact Moderne for more information about safely running the recipes on your own codebase in a private SaaS.
Contributors
Last updated