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Grant Wuerker
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Jun 21, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| // use self::option::Option | ||
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| // trait Applicative | ||
| // where Self: * -> * | ||
| // { | ||
| // fn pure<T>(t: T) -> Self<T> | ||
| // } | ||
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| // impl Applicative for Option { | ||
| // fn pure<T>(t: T) -> Self<T> { | ||
| // Option::Some(t) | ||
| // } | ||
| // } | ||
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| // trait Monad: Applicative | ||
| // where Self: * -> * | ||
| // { | ||
| // fn bind<T, F, U>(self: Self<T>) -> Self<U> where F: Fn<T, Self<U>> | ||
| // } | ||
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| // impl Monad for Option { | ||
| // fn bind<T, F, U>(self: Self<T>) -> Self<U> where F: Fn<T, Self<U>> { | ||
| // match self { | ||
| // Self::Some(self) => F::exec(t: self) | ||
| // Self::None => Self::None | ||
| // } | ||
| // } | ||
| // } | ||
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| // fn foo<F>(f: F) | ||
| // where F: Fn(u8, u8, u8) -> u8 { | ||
| // where F: Fn<{u8, u8, u8}, u8> | ||
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| // } | ||
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| // fn f(u8, u8, u8) -> u8 {} // (u8, u8, u8) -> u8 | ||
| // fn g((u8, u8, u8)) -> u8 {} //((u8,u8,u8)) -> u8 | ||
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| // fn main() { | ||
| // f(1, 2, 3) // f.exec((1, 2, 3)) | ||
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| // let x = (1, 2, 3) | ||
| // f(x) | ||
| // g(x) | ||
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| // let args = {1, 2, 3} | ||
| // args.push(1) | ||
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| // let args = (1, 2, 3) | ||
| // f (1, 2, 3) | ||
| // f args | ||
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| // let x = ((u8, u8, u8)) | ||
| // let x = ((u8, u8, u8),) | ||
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| // f(args..) // f(x, y) f ( | ||
| // } | ||
| // (u8, u8, u8) -> u8 | ||
| // u8 -> u8 -> u8 -> u8 | ||
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| // impl Fn<((u8, u8, u8)), u8> for G | ||
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| // impl Fn<(u8, u8, u8), u8> for Foo { | ||
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| // } | ||
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| // trait Fn<T, U> where T: FnArgs { | ||
| // fn exect(&self, t: T) -> U | ||
| // } | ||
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| // trait Fn<Arg, Ret, const Arity: usize> | ||
| // where Arg: Tuple<Arity> | ||
| // { | ||
| // fn call(self, arg : Arg) -> Ret | ||
| // } | ||
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| // trait FnMut<T, U> where T: FnArgs { | ||
| // fn exect(&mut self, t: T) -> U | ||
| // } | ||
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| // trait Tuple<const N: usize>; | ||
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| // fn map<T, U,F>(t: T, f: F) -> U | ||
| // where F: Fn(T) -> U {...} | ||
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| // type MyFn = () | ||
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| // impl<T, U> Fn<T, U> for Foo { | ||
| // fn exec(&self, t: T) -> U { | ||
| // t.element(0) | ||
| // t.len() | ||
| // } | ||
| // } | ||
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| // impl Fn<(u8, u8>, Option<u8>> for MyFn { | ||
| // fn exec(t: (bool, bool)) -> Option<u8> { | ||
| // let (a, b) = t | ||
| // f(a, b) | ||
| // } | ||
| // } | ||
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| // #test | ||
| // fn my_test() { | ||
| // let f: MyFn = () | ||
| // let a = Option::Some(true).bind<_, _, _>(f) | ||
| // let a: Option<u8> = Option::Some(true).bind(f) | ||
| // } | ||
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| // sub x y = x - y | ||
| // f = sub 1 // f 2 == 1 - 2 | ||
| // g = `sub` 1 // g 2 == 2 - 1 | ||
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| // enum Result<T, E> { | ||
| // Ok(T) | ||
| // Err(E) | ||
| // } | ||
| // impl<E> Functor for Result<*, E> { // or Result<_, E> maybe? | ||
| // fn map<A, B, F: Fn<A, B>>(self: Self<A>, _ f: F) -> Self<B> { | ||
| // match self { | ||
| // Result::Ok(a) => { | ||
| // return Result::Ok(f(a)) | ||
| // } | ||
| // Result::Err(e) => { | ||
| // return Result::Err(e) | ||
| // } | ||
| // } | ||
| // } | ||
| // } | ||
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| // enum Res<E, T> { // Result<T, E> | ||
| // Err(E) | ||
| // Ok(T) | ||
| // } | ||
| // impl Functor for Res<MyError> { | ||
| // fn map<A, B, F: Fn<A, B>>(self: Self<A>, _ f: F) -> Self<B> { | ||
| // match self { | ||
| // Result::Ok(a) => { | ||
| // return Result::Ok(f(a)) | ||
| // } | ||
| // Result::Err(e) => { | ||
| // return Result::Err(e) | ||
| // } | ||
| // } | ||
| // } | ||
| // } | ||
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| // fn main() { | ||
| // let r = foo() | ||
| // r.map(|t| ...) | ||
| // } | ||
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| // enum Result1<E, T> | ||
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| // Result<_, E> | ||
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| // Flip (Result) | ||
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| // ((+) `foldl` 0) [1..5] | ||
| // ((`foldl` 0) [1..5]) (+) | ||
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| // flip :: (a -> b -> c) -> b -> a -> c | ||
| // f :: a -> b -> c -> d -> e | ||
| // flip f :: b -> a -> c -> d -> e |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| use self::option::Option | ||
|
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||
| trait Applicative | ||
| where Self: * -> * | ||
| { | ||
| fn pure<T>(t: T) -> Self<T> | ||
| } | ||
|
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||
| impl Applicative for Option { | ||
| fn pure<T>(t: T) -> Self<T> { | ||
| Option::Some(t) | ||
| } | ||
| } | ||
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| trait Monad: Applicative | ||
| where Self: * -> * | ||
| { | ||
| fn bind<Source, Target, Morph>(self: Self<Source>, morph: Morph) -> Self<Target> | ||
| where Morph: Fn<1, (Source), Self<Target>>, (Source): Tuple<1> | ||
| } | ||
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| impl Monad for Option { | ||
| fn bind<Source, Target, Morph>(self: Self<Source>, morph: Morph) -> Self<Target> | ||
| where Morph: Fn<1, (Source), Self<Target>>, (Source): Tuple<1> | ||
| { | ||
| match self { | ||
| Self::Some(self) => morph.exec(args: (self, )) | ||
| Self::None => Self::None | ||
| } | ||
| } | ||
| } | ||
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| trait Fn<const Arity: u8, Args, Ret> where Args: Tuple<Arity> { | ||
| fn exec(self, args: Args) -> Ret | ||
| } | ||
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| trait Tuple<const N: u8> { } | ||
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| // type MyFn = () | ||
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| // impl<T> Fn<1, (bool), Option<u8>> for MyFn { | ||
| // fn exec(self, args: (bool)) -> Option<u8> { | ||
| // Option::Some(0) | ||
| // } | ||
| // } | ||
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| // impl Tuple<1> for (bool) { } | ||
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| // #test | ||
| // fn my_test() { | ||
| // let f: MyFn = () | ||
| // let a = Option::Some(true).bind<bool, u8, MyFn>(f) | ||
| // } | ||
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| // fn map<T, U,F>(t: T, f: F) -> U | ||
| // where F: Fn(T) -> U {...} | ||
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| // type MyFn = () | ||
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| // impl<T, U> Fn<T, U> for Foo { | ||
| // fn exec(&self, t: T) -> U { | ||
| // t.element(0) | ||
| // t.len() | ||
| // } | ||
| // } | ||
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| // impl Fn<(u8, u8>, Option<u8>> for MyFn { | ||
| // fn exec(t: (bool, bool)) -> Option<u8> { | ||
| // let (a, b) = t | ||
| // f(a, b) | ||
| // } | ||
| // } | ||
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| // sub x y = x - y | ||
| // f = sub 1 // f 2 == 1 - 2 | ||
| // g = `sub` 1 // g 2 == 2 - 1 | ||
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|
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| // enum Result<T, E> { | ||
| // Ok(T) | ||
| // Err(E) | ||
| // } | ||
| // impl<E> Functor for Result<*, E> { // or Result<_, E> maybe? | ||
| // fn map<A, B, F: Fn<A, B>>(self: Self<A>, _ f: F) -> Self<B> { | ||
| // match self { | ||
| // Result::Ok(a) => { | ||
| // return Result::Ok(f(a)) | ||
| // } | ||
| // Result::Err(e) => { | ||
| // return Result::Err(e) | ||
| // } | ||
| // } | ||
| // } | ||
| // } | ||
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| // enum Res<E, T> { // Result<T, E> | ||
| // Err(E) | ||
| // Ok(T) | ||
| // } | ||
| // impl Functor for Res<MyError> { | ||
| // fn map<A, B, F: Fn<A, B>>(self: Self<A>, _ f: F) -> Self<B> { | ||
| // match self { | ||
| // Result::Ok(a) => { | ||
| // return Result::Ok(f(a)) | ||
| // } | ||
| // Result::Err(e) => { | ||
| // return Result::Err(e) | ||
| // } | ||
| // } | ||
| // } | ||
| // } | ||
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| // fn main() { | ||
| // let r = foo() | ||
| // r.map(|t| ...) | ||
| // } | ||
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| // enum Result1<E, T> | ||
|
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| // Result<_, E> | ||
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| // Flip (Result) | ||
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| // ((+) `foldl` 0) [1..5] | ||
| // ((`foldl` 0) [1..5]) (+) | ||
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| // flip :: (a -> b -> c) -> b -> a -> c | ||
| // f :: a -> b -> c -> d -> e | ||
| // flip f :: b -> a -> c -> d -> e |
Empty file.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| enum Option<Inner> { | ||
| pub enum Option<Inner> { | ||
| Some(Inner), | ||
| None | ||
| } |