Class MayBeExistingObjectByShape

java.lang.Object

org.ek9lang.compiler.support.sharing.MayBeExistingObjectByShape

All Implemented Interfaces:

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

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

Is the expression, looking through parentheses, of a SHAPE whose value may be an object that already exists - a variable, this/super, a call, or a coalescing operator or ternary (whose result IS one of its operands) - so only MayBeExistingObject, once phase 5 has derived the RETAINS of the program's own callables, can say whether it is. Phase 3 defers its E08090 verdict on exactly these shapes; anything else (a literal, a constructor call, a list or dict literal) is fresh and keeps its verdict there.

Constructor Summary

Constructors

Constructor	Description
MayBeExistingObjectByShape()

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

MayBeExistingObjectByShape

public MayBeExistingObjectByShape()

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>>