trait Definition[-T] extends AnyRef
Supertrait for typeclasses that enable the be defined
matcher syntax.
A Definition[T]
provides access to the "definition nature" of type S
in such
a way that be defined
matcher syntax can be used with type T
. A T
can be any type for which the concept of being defined makes sense, such as scala.Option
. ScalaTest provides
implicit implementation for scala.Option
. You can enable the be defined
matcher syntax on your own
type U
by defining a Definition[U]
for the type and making it available implicitly.
ScalaTest provides an implicit Definition
instance for scala.Option
,
arbitary object with isDefined()
or isDefined
in the Definition
companion object.
- Source
- Definition.scala
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abstract
def
isDefined(thing: T): Boolean
Determines whether the passed is defined, i.e., the passed in
scala.Option
is defined.Determines whether the passed is defined, i.e., the passed in
scala.Option
is defined.- thing
the thing to check for definition
- returns
true
if passed thing is defined,false
otherwise