Package eu.solven.cleanthat.engine.java.refactorer.mutators

Class CollectionToOptional

java.lang.Object

eu.solven.cleanthat.engine.java.refactorer.AJavaparserMutator

eu.solven.cleanthat.engine.java.refactorer.AJavaparserExprMutator

eu.solven.cleanthat.engine.java.refactorer.mutators.CollectionToOptional

All Implemented Interfaces:

IJavaparserMutator, IMutator, IMutatorExternalReferences, IWalkingMutator<com.github.javaparser.ast.Node,com.github.javaparser.ast.Node>

public class CollectionToOptional
extends AJavaparserExprMutator

Turns `list.isEmpty() ? Optional.empty() : Optional.of(list.get(0))` into `list.stream().findFirst()`

Author:

Benoit Lacelle

Field Summary

Fields inherited from interface eu.solven.cleanthat.engine.java.refactorer.meta.IMutator

ID_NOOP, IS_PRODUCTION_READY

Constructor Summary

Constructors

Constructor	Description
CollectionToOptional()

Method Summary

Modifier and Type	Method	Description
Optional<String>	getCleanthatId()
protected boolean	processNotRecursively(com.github.javaparser.ast.expr.Expression expr)

Methods inherited from class eu.solven.cleanthat.engine.java.refactorer.AJavaparserExprMutator

processNotRecursively, replaceExpression

Methods inherited from class eu.solven.cleanthat.engine.java.refactorer.AJavaparserMutator

cancelDueToComment, getSimpleName, getWarnCount, isAssignableBy, isAssignableBy, isImportable, isImported, messageForIssueReporting, nameOrQualifiedName, onMethodName, optResolved, optResolvedType, optResolvedType, replaceBy, replaceNode, scopeHasRequiredType, scopeHasRequiredType, tryRemove, tryReplace, typeHasRequiredType, walkAst

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface eu.solven.cleanthat.engine.java.refactorer.meta.IMutator

getId, getIds, isDraft, isJreOnly, minimalJavaVersion

Methods inherited from interface eu.solven.cleanthat.engine.java.refactorer.meta.IMutatorExternalReferences

checkstyleUrl, errorProneUrl, getCheckstyleId, getErrorProneId, getJSparrowId, getPmdId, getPmdIds, getSeeUrls, getSonarId, jSparrowUrl, pmdUrl, sonarUrl

Methods inherited from interface eu.solven.cleanthat.engine.java.refactorer.meta.IWalkingMutator

walkAstHasChanged

Constructor Details

CollectionToOptional

public CollectionToOptional()

Method Details

getCleanthatId

public Optional<String> getCleanthatId()

processNotRecursively

protected boolean processNotRecursively(com.github.javaparser.ast.expr.Expression expr)

Overrides:

processNotRecursively in class AJavaparserExprMutator