public static final class ForgetOpt.Instance<R> extends Object implements AffineP ForgetOpt.Mu<R>
Modifier and Type | Class and Description |
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static class |
ForgetOpt.Instance.Mu<R> |
Constructor and Description |
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Instance() |
Modifier and Type | Method and Description |
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<A,B,C,D> (ForgetOpt.Mu<R><A,B>) -> ForgetOpt.Mu<R><C,D> |
dimap((C) -> A g,
(B) -> D h)
Takes a function from the output type
C to the input type A and a function from the input
type B to the output type D , and returns a function from a container of A, B to
a container of C, D . |
<A,B,C> ForgetOpt.Mu<R><(A,C),(B,C)> |
first(ForgetOpt.Mu<R><A,B> input)
Converts the given transformation into one that transforms the first type of a
Pair . |
<A,B,C> ForgetOpt.Mu<R><(A|C),(B|C)> |
left(ForgetOpt.Mu<R><A,B> input)
Converts the given transformation into one that transforms the left type of an
Either . |
<A,B,C> ForgetOpt.Mu<R><(C|A),(C|B)> |
right(ForgetOpt.Mu<R><A,B> input)
Converts the given transformation into one that transforms the right type of an
Either . |
<A,B,C> ForgetOpt.Mu<R><(C,A),(C,B)> |
second(ForgetOpt.Mu<R><A,B> input)
Converts the given transformation into one that transforms the second type of a
Pair . |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
toFP
dimap, dimap, lmap, rmap
public <A,B,C,D> (ForgetOpt.Mu<R><A,B>) -> ForgetOpt.Mu<R><C,D> dimap((C) -> A g, (B) -> D h)
Profunctor
C
to the input type A
and a function from the input
type B
to the output type D
, and returns a function from a container of A, B
to
a container of C, D
.
A straightforward example of an implementation of dimap
is the method Function.andThen(Function)
.
For functions, the expression
dimap(g, h).apply(f)
is equivalent to
g.andThen(f).andThen(h)
dimap
in interface Profunctor ForgetOpt.Mu<R>
A
- The first input type.B
- The second input type.C
- The first output type.D
- The second output type.g
- A function from output to input.h
- A function from input to output.Profunctor.dimap(App2, Function, Function)
public <A,B,C> ForgetOpt.Mu<R><(A,C),(B,C)> first(ForgetOpt.Mu<R><A,B> input)
Cartesian
Pair
. The second type
is not transformed - any values of that type are passed through the returned transformation unchanged.first
in interface Cartesian ForgetOpt.Mu<R>
A
- The input type.B
- The output type.C
- A "pass-through" type that is not transformed.input
- The transformation.public <A,B,C> ForgetOpt.Mu<R><(C,A),(C,B)> second(ForgetOpt.Mu<R><A,B> input)
Cartesian
Pair
. The first type
is not transformed - any values of that type are passed through the returned transformation unchanged.second
in interface Cartesian ForgetOpt.Mu<R>
A
- The input type.B
- The output type.C
- A "pass-through" type that is not transformed.input
- The transformation.public <A,B,C> ForgetOpt.Mu<R><(A|C),(B|C)> left(ForgetOpt.Mu<R><A,B> input)
Cocartesian
Either
. The right
type of the Either
is left unchanged by the returned transformation.left
in interface Cocartesian ForgetOpt.Mu<R>
A
- The input type.B
- The output type.C
- A "pass-through" type that is not transformed.input
- The transformation.Either
.public <A,B,C> ForgetOpt.Mu<R><(C|A),(C|B)> right(ForgetOpt.Mu<R><A,B> input)
Cocartesian
Either
. The left
type of the Either
is left unchanged by the returned transformation.right
in interface Cocartesian ForgetOpt.Mu<R>
A
- The input type.B
- The output type.C
- A "pass-through" type that is not transformed.input
- The transformation.Either
.