Package gnu.kawa.util

Interface BoundedHashable

All Known Subinterfaces:
AVector<E>, CharSeq, GVector<E>, IntSequence, Sequence<E>
All Known Implementing Classes:
AbstractCharVector, ArgListPair, ArgListVector, BitVector, Blob, ByteVector, CharBuffer, CharVector, ComposedArray.AsSequence, EmptyList, F32Vector, F64Vector, FlattenedArray, FString, FVector, GeneralArray1, ImmutablePair, IndirectIndexedSeq, IntVector, IString, IString.SubString, LList, LongVector, Nodes.NodeVector, Pair, PairWithPosition, PrimIntegerVector, Range, Range.IntRange, RAPair, S16Vector, S32Vector, S64Vector, S8Vector, ShortVector, SimpleVector, SubSequence, SyntaxForms.PairSyntaxForm, SyntaxForms.PairWithPositionSyntaxForm, Translator.FormStack, U16Vector, U32Vector, U64Vector, U8Vector
public interface BoundedHashable
Supports computing a hash-code while protecting against cycles.

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    boundedHash(int seed, int limit)
    Calculate a hash code for this object.

  • Method Details

    • boundedHash

      int boundedHash(int seed, int limit)
      Calculate a hash code for this object.
      Parameters:
      seed - The seed is an initial value, or the accumulated hash code from previous elements in a containing object. Using zero as the seed is fine.
      limit - A limit on the number of sub-elements whose hash we should calculate. This guards against cycles. Any recursive calls should be done with a smaller value of limit, and no recursive calls must be done when the limit is zero.
      Returns:
      A well-dispersed hash code. The result is not compatible with Object#hashCode.