Package org.openrewrite.java.cleanup

Class SimplifyBooleanExpressionVisitor

java.lang.Object

org.openrewrite.TreeVisitor<org.openrewrite.java.tree.J,P>

org.openrewrite.java.JavaVisitor<org.openrewrite.ExecutionContext>

org.openrewrite.java.cleanup.SimplifyBooleanExpressionVisitor

public class SimplifyBooleanExpressionVisitor
extends JavaVisitor<org.openrewrite.ExecutionContext>

Field Summary

Fields inherited from class org.openrewrite.java.JavaVisitor

javadocVisitor

Constructor Summary

Constructors

Constructor	Description
SimplifyBooleanExpressionVisitor()

Method Summary

Modifier and Type	Method	Description
protected boolean	shouldSimplifyEqualsOn(org.openrewrite.java.tree.J j)	Override this method to disable simplification of equals expressions, specifically for Kotlin while that is not yet part of the OpenRewrite/rewrite.
org.openrewrite.java.tree.J	visitBinary(org.openrewrite.java.tree.J.Binary binary, org.openrewrite.ExecutionContext ctx)
org.openrewrite.java.tree.J	visitMethodInvocation(org.openrewrite.java.tree.J.MethodInvocation method, org.openrewrite.ExecutionContext executionContext)
<T extends org.openrewrite.java.tree.J> org.openrewrite.java.tree.J	visitParentheses(org.openrewrite.java.tree.J.Parentheses<T> parens, org.openrewrite.ExecutionContext ctx)
org.openrewrite.java.tree.J	visitUnary(org.openrewrite.java.tree.J.Unary unary, org.openrewrite.ExecutionContext ctx)

Methods inherited from class org.openrewrite.java.JavaVisitor

autoFormat, autoFormat, autoFormat, getJavadocVisitor, getLanguage, isAcceptable, isInSameNameScope, isInSameNameScope, maybeAddImport, maybeAddImport, maybeAddImport, maybeAddImport, maybeAddImport, maybeAddImport, maybeAutoFormat, maybeAutoFormat, maybeAutoFormat, maybeRemoveImport, maybeRemoveImport, service, visitAnnotatedType, visitAnnotation, visitArrayAccess, visitArrayDimension, visitArrayType, visitAssert, visitAssignment, visitAssignmentOperation, visitBlock, visitBreak, visitCase, visitCatch, visitClassDeclaration, visitCompilationUnit, visitContainer, visitContinue, visitControlParentheses, visitDoWhileLoop, visitElse, visitEmpty, visitEnumValue, visitEnumValueSet, visitExpression, visitFieldAccess, visitForControl, visitForEachControl, visitForEachLoop, visitForLoop, visitIdentifier, visitIf, visitImport, visitInstanceOf, visitIntersectionType, visitLabel, visitLambda, visitLeftPadded, visitLiteral, visitMemberReference, visitMethodDeclaration, visitMultiCatch, visitNewArray, visitNewClass, visitNullableType, visitPackage, visitParameterizedType, visitParenthesizedTypeTree, visitPrimitive, visitReturn, visitRightPadded, visitSpace, visitStatement, visitSwitch, visitSwitchExpression, visitSynchronized, visitTernary, visitThrow, visitTry, visitTryResource, visitType, visitTypeCast, visitTypeName, visitTypeParameter, visitUnknown, visitUnknownSource, visitVariable, visitVariableDeclarations, visitWhileLoop, visitWildcard, visitYield

Methods inherited from class org.openrewrite.TreeVisitor

adapt, collect, collect, defaultValue, doAfterVisit, getAfterVisit, getCursor, isAdaptableTo, noop, postVisit, preVisit, reduce, reduce, reduce, setCursor, stopAfterPreVisit, updateCursor, visit, visit, visit, visitAndCast, visitAndCast, visitMarker, visitMarkers, visitNonNull, visitNonNull, visitorTreeType

Methods inherited from class java.lang.Object

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

Constructor Details

SimplifyBooleanExpressionVisitor

public SimplifyBooleanExpressionVisitor()

Method Details

visitBinary

public org.openrewrite.java.tree.J visitBinary(org.openrewrite.java.tree.J.Binary binary,
 org.openrewrite.ExecutionContext ctx)

Overrides:

visitBinary in class JavaVisitor<org.openrewrite.ExecutionContext>

visitParentheses

public <T extends org.openrewrite.java.tree.J>
org.openrewrite.java.tree.J visitParentheses(org.openrewrite.java.tree.J.Parentheses<T> parens,
 org.openrewrite.ExecutionContext ctx)

Overrides:

visitParentheses in class JavaVisitor<org.openrewrite.ExecutionContext>

visitUnary

public org.openrewrite.java.tree.J visitUnary(org.openrewrite.java.tree.J.Unary unary,
 org.openrewrite.ExecutionContext ctx)

Overrides:

visitUnary in class JavaVisitor<org.openrewrite.ExecutionContext>

visitMethodInvocation

public org.openrewrite.java.tree.J visitMethodInvocation(org.openrewrite.java.tree.J.MethodInvocation method,
 org.openrewrite.ExecutionContext executionContext)

Overrides:

visitMethodInvocation in class JavaVisitor<org.openrewrite.ExecutionContext>

shouldSimplifyEqualsOn

protected boolean shouldSimplifyEqualsOn(org.openrewrite.java.tree.J j)

Override this method to disable simplification of equals expressions, specifically for Kotlin while that is not yet part of the OpenRewrite/rewrite.

Comparing Kotlin nullable type `?` with tree/false can not be simplified, e.g. `X?.fun() == true` is not equivalent to `X?.fun()`

Subclasses will want to check if the `org.openrewrite.kotlin.marker.IsNullSafe` marker is present.

Parameters:

j - the expression to simplify

Returns:

true by default, unless overridden