A class for implicit values that can serve as implicit conversions The implicit resolution algorithm will act as if there existed the additional implicit definition:
def $implicitConversion[T, U](x: T)(c: Conversion[T, U]): U = c(x)
However, the presence of this definition would slow down implicit search since
its outermost type matches any pair of types. Therefore, implicit search
contains a special case in
Implicits#discardForView which emulates the
conversion in a more efficient way.
Note that this is a SAM class - function literals are automatically converted
Also note that in bootstrapped dotty,
Predef.<:< should inherit from
Conversion. This would cut the number of special cases in
from two to one.
Conversion class can also be used to convert explicitly, using
convert extension method.
Composes two instances of Function1 in a new Function1, with this function applied first.
Composes two instances of Function1 in a new Function1, with this function applied last.