class NeedsImplicitSuffix(prefix: String)(implicit suffix: String) {
    def doImplicitly(): String = {
        s"$prefix-$suffix"
    }
}

class HasPrefixInConstructor(suffix: String) {
    def thisWontCompile(): NeedsImplicitSuffix = {
        new NeedsImplicitSuffix("that")
    }
}

error: could not find implicit value for parameter suffix: String

class HasPrefixInConstructor(suffix: String) {
    def thisWontCompile(): NeedsImplicitSuffix = {
        new NeedsImplicitSuffix("that")(suffix) // suffix is passed explicitly
    }
}