Class MayBeExistingObject

java.lang.Object

org.ek9lang.compiler.support.sharing.MayBeExistingObject

All Implemented Interfaces:

BiPredicate<EK9Parser.ExpressionContext, Function<org.antlr.v4.runtime.tree.ParseTree, ISymbol>>

public final class MayBeExistingObject
extends Object
implements BiPredicate<EK9Parser.ExpressionContext, Function<org.antlr.v4.runtime.tree.ParseTree, ISymbol>>

May the value of this expression BE an object that exists already - rather than a fresh one: a variable (not a constant, which is read as a copy), this/super, a call whose RETAINS says its result may be its receiver's interior or an argument (MayAlias), or a coalescing operator's result or a ternary's when EITHER operand may be (the result is one of them: the same route ObjectSharing follows for the operand itself). Parentheses are looked through. A literal, a constructor call and a call that hands back something fresh are not.

Constructor Summary

Constructors

Constructor	Description
MayBeExistingObject()

Method Summary

Modifier and Type	Method	Description
boolean	test(EK9Parser.ExpressionContext expression, Function<org.antlr.v4.runtime.tree.ParseTree, ISymbol> recorded)

Methods inherited from class Object

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

Methods inherited from interface BiPredicate

and, negate, or

Constructor Details

MayBeExistingObject

public MayBeExistingObject()

Method Details

test

public boolean test(EK9Parser.ExpressionContext expression,
 Function<org.antlr.v4.runtime.tree.ParseTree, ISymbol> recorded)

Specified by:

test in interface BiPredicate<EK9Parser.ExpressionContext, Function<org.antlr.v4.runtime.tree.ParseTree, ISymbol>>