Class AggregateMemberOrder

java.lang.Object

org.ek9lang.compiler.support.AggregateMemberOrder

All Implemented Interfaces:

Function<EK9Parser.AggregatePartsContext, Optional<AggregateMemberOrder.OutOfOrder>>

public final class AggregateMemberOrder
extends Object
implements Function<EK9Parser.AggregatePartsContext, Optional<AggregateMemberOrder.OutOfOrder>>

THE order of the members of an aggregate body (E01086, Steve 2026-10-11): properties first, then constructors and methods, then operators (an explicit operator, override operator or default operator X, in any order among themselves), and a bare default operator as the LAST item of all.

The grammar (aggregateParts) accepts the members in any order, so the rule is stated once here and asked by every door that needs it: phase 1's AggregateMemberOrderOrError (the compile error), SyntaxProbe (so a text-layer repair such as DefaultOperatorLast still sees the error before a compile) and the formatter's member reordering (which splices contiguous sections and leaves an out-of-order body alone). Before 2026-10-11 the grammar enforced the order and ErrorListener.syntaxError relabelled ANTLR's recovery messages as E01086, with 2-3 cascades, and an @Error directive in front of the member defeated it.

Only the FIRST member out of order is reported, once per body: moving it may well settle the rest.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	AggregateMemberOrder.OutOfOrder	The first member of a body out of order.

Constructor Summary

Constructors

Constructor	Description
AggregateMemberOrder()

Method Summary

Modifier and Type	Method	Description
Optional<AggregateMemberOrder.OutOfOrder>	apply(EK9Parser.AggregatePartsContext parts)	The first member of parts that is out of order, or empty when the body is in order (or null).

Methods inherited from class Object

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

Methods inherited from interface Function

andThen, compose

Constructor Details

AggregateMemberOrder

public AggregateMemberOrder()

Method Details

apply

public Optional<AggregateMemberOrder.OutOfOrder> apply(EK9Parser.AggregatePartsContext parts)

The first member of parts that is out of order, or empty when the body is in order (or null).

Specified by:

apply in interface Function<EK9Parser.AggregatePartsContext, Optional<AggregateMemberOrder.OutOfOrder>>