Class IsNegation

java.lang.Object

org.ek9lang.compiler.phase1.IsNegation

All Implemented Interfaces:

Predicate<EK9Parser.ExpressionContext>

final class IsNegation
extends Object
implements Predicate<EK9Parser.ExpressionContext>

THE "is this a negation applied to one operand?" - word not b, ~b or unary -x. Keyed on the OPERATOR, not the spelling (Steve, 2026-10-08, Q9): all three call _negate (OperatorMap.getPrefixForward(String), the mapping IR generation lowers them through), so any two of them applied to one operand cancel out (E08274, DoubleNegationOrError). Binary - has a left operand and is subtraction, never a negation, and -- is the decrement token, never two negations. Part of BinaryExpressions.

Constructor Summary

Constructors

Constructor	Description
IsNegation()

Method Summary

Modifier and Type	Method	Description
boolean	test(EK9Parser.ExpressionContext ctx)

Methods inherited from class Object

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

Methods inherited from interface Predicate

and, negate, or

Constructor Details

IsNegation

IsNegation()

Method Details

test

public boolean test(EK9Parser.ExpressionContext ctx)

Specified by:

test in interface Predicate<EK9Parser.ExpressionContext>