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@samuelorji
Last active March 4, 2019 09:26
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implicit class ToParrot( p : Parrot){
def speakLikeHuman(implicit humanlike : HumanTendency[Parrot]) : String = {
humanlike.makeHumanLike(p)
}
}
//let us create our closed model object type Parrot
val parrot = Parrot("Casey", "prrrrr")
//closed object type Cat
val cat = Cat("Puss", "meow")
//now with the first method, the type class will work like this
//we call the method passing the parrot as a parameter like
// speakLikeHum
def speakLikeHuman(p :Parrot)(implicit humanTendency: HumanTendency[Parrot]) : String = { //#1
humanTendency.makeHumanLike(p)
}
//but with the second method,we can easily do this
parrot.speakLikeHuman //#2
println ( speakLikeHuman(parrot) ) // prints out ---------> I am Casey, the sound i make is prrrrr,and i can talk like a human :)
println( parrot.speakLikeHuman ) // prints out ---------> I am Casey, the sound i make is prrrrr,and i can talk like a human :)
//Now if we try this
println( cat.speakLikeHuman ) //error : value speakLikeHuman is not a member of Cat
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