Class KeptArgumentHolders

java.lang.Object

org.ek9lang.compiler.support.retention.KeptArgumentHolders

All Implemented Interfaces:

BiFunction<ScopedSymbol, Integer, List<String>>

public final class KeptArgumentHolders
extends Object
implements BiFunction<ScopedSymbol, Integer, List<String>>

What may come to HOLD the argument callee is given at parameterIndex, other than its result: the receiver (RetentionRule.RECEIVER) and the names of the other parameters it may store the argument into (receiver <- item, items <- item). A callee declaring unknown may keep it anywhere: the receiver and every other parameter. A rule into ambient (somewhere no argument names, such as the runtime's own tables) names no holder here. Used by the store barrier (EK9_NATIVE_CYCLE_COLLECTOR_DESIGN.md §13.11, S2b): an argument kept into a value a published object may reach must be published with it.

Constructor Summary

Constructors

Constructor	Description
KeptArgumentHolders()

Method Summary

Modifier and Type	Method	Description
List<String>	apply(ScopedSymbol callee, Integer parameterIndex)

Methods inherited from class Object

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

Methods inherited from interface BiFunction

andThen

Constructor Details

KeptArgumentHolders

public KeptArgumentHolders()

Method Details

apply

public List<String> apply(ScopedSymbol callee,
 Integer parameterIndex)

Specified by:

apply in interface BiFunction<ScopedSymbol, Integer, List<String>>