fm.common

TypeWiseBalancedEquality

object TypeWiseBalancedEquality

By importing TypeWiseBalancedEquality._ you get type-safe and type-wise balanced equality:

import name.heikoseeberger.demoequality.TypeWiseBalancedEquality._

123 === 666 // false
"a" === "a" // true
123 === "a" // won't compile!

This equality is balanced with respect to subtyping, hence === works (compiles) for any two arguments on the left and right, whose types are in a subtype relationship (which includes type equality):

Seq(1, 2, 3) === List(1, 2, 3)
List(1, 2, 3) === Seq(1, 2, 3)

Yet it doesn't work (compile) for two arguments on the left and right, whose types are in an implicit conversion relationship:

1L === 1 // won't compile!
1 === 1L // won't compile!
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Type Members

  1. implicit final class Equal[L] extends AnyVal

    Extends any type with a type-safe and balanced === operator.

  2. sealed trait Equality[L, R] extends AnyRef

    Type-class representing equality of two arguments with arbitrary respective types.

  3. trait LowPriorityEqualityImplicits extends AnyRef

    Mixed into Equality to disambiguate the L =:= R case.

Value Members

  1. final def !=(arg0: AnyRef): Boolean

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  2. final def !=(arg0: Any): Boolean

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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  5. final def ==(arg0: Any): Boolean

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  6. object Equality extends LowPriorityEqualityImplicits

    Provides type-class instances based on natural equality for any two types in a L <: R or R <: L relationship.

  7. final def asInstanceOf[T0]: T0

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  8. def clone(): AnyRef

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  9. final def eq(arg0: AnyRef): Boolean

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  10. def equals(arg0: Any): Boolean

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  11. def finalize(): Unit

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  12. final def getClass(): Class[_]

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  13. def hashCode(): Int

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  14. final def isInstanceOf[T0]: Boolean

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  15. final def ne(arg0: AnyRef): Boolean

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  16. final def notify(): Unit

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  17. final def notifyAll(): Unit

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  18. final def synchronized[T0](arg0: ⇒ T0): T0

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  19. def toString(): String

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  20. final def wait(): Unit

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  21. final def wait(arg0: Long, arg1: Int): Unit

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  22. final def wait(arg0: Long): Unit

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