Class ConfusinglySimilarNamesOrError

java.lang.Object

org.ek9lang.compiler.phase5.ConfusinglySimilarNamesOrError

All Implemented Interfaces:

Consumer<org.antlr.v4.runtime.tree.ParseTree>

final class ConfusinglySimilarNamesOrError
extends Object
implements Consumer<org.antlr.v4.runtime.tree.ParseTree>

Detects confusingly similar variable, parameter, and field names within the same scope.

Research shows similar names are a significant bug source (Empirical Software Engineering 2023, arXiv 2025). This check flags pairs where:

• Levenshtein distance <= 2 (case change = 1, char substitution = 2)
• Both have the same type (type system won't catch misuse)
• Developer controls both names (not inherited/trait methods)

Intentionally skips:

• Exact param=field match (common constructor pattern)
• Different types (type system catches misuse)
• Loop variables (i, j, k are conventional)

Constructor Summary

Constructors

Constructor	Description
ConfusinglySimilarNamesOrError(SymbolsAndScopes symbolsAndScopes, ErrorListener errorListener)

Method Summary

Modifier and Type	Method	Description
void	accept(org.antlr.v4.runtime.tree.ParseTree node)

Methods inherited from class Object

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

Methods inherited from interface Consumer

andThen

Constructor Details

ConfusinglySimilarNamesOrError

ConfusinglySimilarNamesOrError(SymbolsAndScopes symbolsAndScopes,
 ErrorListener errorListener)

Method Details

accept

public void accept(org.antlr.v4.runtime.tree.ParseTree node)

Specified by:

accept in interface Consumer<org.antlr.v4.runtime.tree.ParseTree>