trait HashEquality[A] extends AnyRef
adds an equality method that is guarded by equality of cached hashcodes
This can be mixed into immutable inductive data structures whose values are often tested for equality. Failing equality tests do not traverse the value anymore the first time.
- A
the type into which this is mixed in (only needed to constrain the type of hasheq)
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- HashEquality.scala
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def
==(arg0: Any): Boolean
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final
def
eq(arg0: AnyRef): Boolean
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equals(arg0: Any): Boolean
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lazy val
hash: Int
the hash code
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def
hashCode(): Int
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def
hasheq(that: HashEquality[A]): Boolean
this hasheq that is the same as this == that, but fails immediately if false
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def
hashneq(that: HashEquality[A]): Boolean
this hasheq that is the same as this == that, but fails immediately if false
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