Class AcceptableExpressionComplexityOrError

java.lang.Object

org.ek9lang.compiler.phase5.AcceptableExpressionComplexityOrError

All Implemented Interfaces:

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

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

Checks expression complexity when a coalescing expression tree completes. Emits E11013 error if complexity exceeds threshold. Also adds expression complexity to method-level complexity counter.

With base costs of 1-2 and multiplier of 3^(depth-1), threshold of 15:

• Single operators at depth 1: 1-2 points - always pass
• Two nested operators: ~5 points - pass
• Three nested operators: ~17 points - flag for refactoring

This encourages developers to extract intermediate variables for deeply nested coalescing expressions, improving code readability while the compiler can optimize the intermediate variables back together if needed.

Constructor Summary

Constructors

Constructor	Description
AcceptableExpressionComplexityOrError(ErrorListener errorListener, ExpressionComplexityCounter expressionCounter, ComplexityCounter methodComplexityCounter)

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

AcceptableExpressionComplexityOrError

AcceptableExpressionComplexityOrError(ErrorListener errorListener,
 ExpressionComplexityCounter expressionCounter,
 ComplexityCounter methodComplexityCounter)

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>