Class AcceptableCognitiveComplexityOrError

java.lang.Object

org.ek9lang.compiler.phase5.AcceptableCognitiveComplexityOrError

All Implemented Interfaces:

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

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

Checks cognitive complexity at function/method/operator exit and emits error if too high. Cognitive complexity accounts for both nesting depth and EK9's unique guard expressions, providing a more accurate measure of how difficult code is to understand.

EK9's guards (<-) pack more cognitive load per line than simple conditions. A 6-level guarded structure is harder to understand than 6 simple ifs.

Threshold 35 allows:

• Realistic production code while catching clearly abusive patterns
• Simple nesting at depth 6 = 21 points (well under threshold)
• Guarded nesting at depth 6 = 42 points (over threshold - needs refactoring)

See Also:

• for the complexity calculation algorithm

Constructor Summary

Constructors

Constructor	Description
AcceptableCognitiveComplexityOrError(SymbolsAndScopes symbolsAndScopes, ErrorListener errorListener, CognitiveComplexityCounter cognitiveCounter)

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

AcceptableCognitiveComplexityOrError

AcceptableCognitiveComplexityOrError(SymbolsAndScopes symbolsAndScopes,
 ErrorListener errorListener,
 CognitiveComplexityCounter cognitiveCounter)

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>