Class RedundantBooleanComparisonOrError

java.lang.Object

org.ek9lang.compiler.common.RuleSupport

org.ek9lang.compiler.common.TypedSymbolAccess

org.ek9lang.compiler.phase5.RedundantBooleanComparisonOrError

All Implemented Interfaces:

Consumer<EK9Parser.ExpressionContext>

final class RedundantBooleanComparisonOrError
extends TypedSymbolAccess
implements Consumer<EK9Parser.ExpressionContext>

Detects comparisons of a Boolean expression with a Boolean literal (E08084).

Expressions like b == true should be simplified to b, and b == false should be simplified to not b. The comparison adds unnecessary verbosity and indicates a misunderstanding of Boolean logic.

Only equality operators (==, <>, !=) are checked. Comparing two Boolean variables (a == b) is valid and not flagged.

Field Summary

Fields inherited from class RuleSupport

errorListener, symbolsAndScopes

Constructor Summary

Constructors

Constructor	Description
RedundantBooleanComparisonOrError(SymbolsAndScopes symbolsAndScopes, ErrorListener errorListener)

Method Summary

Modifier and Type	Method	Description
void	accept(EK9Parser.ExpressionContext ctx)

Methods inherited from class TypedSymbolAccess

getRecordedAndTypedSymbol, isProcessingScopePure, recordATypedSymbol

Methods inherited from class Object

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

Methods inherited from interface Consumer

andThen

Constructor Details

RedundantBooleanComparisonOrError

RedundantBooleanComparisonOrError(SymbolsAndScopes symbolsAndScopes,
 ErrorListener errorListener)

Method Details

accept

public void accept(EK9Parser.ExpressionContext ctx)

Specified by:

accept in interface Consumer<EK9Parser.ExpressionContext>