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#![allow(unused_mut, non_camel_case_types, dead_code, unused_variables)] | |
use std::fmt::{self, Debug}; | |
use std::ops::Add; | |
/*macro_rules! using { | |
[ $pp:path : ( $($elem:ident),* ) | |
] => [ | |
use $pp :: {self, $(elem),*}; | |
]; | |
} | |
using!{ std::fmt : (Debug) }*/ | |
macro_rules! make_overloadable { | |
[ fn $fn_name:ident(); | |
] => [ | |
trait $fn_name { | |
type ReturnType; | |
fn $fn_name( &self ) -> Self::ReturnType; | |
} | |
fn $fn_name<TType: $fn_name>( tuple: &TType ) -> TType::ReturnType { | |
tuple.$fn_name() | |
} | |
]; | |
/*[ fn $fn_name() -> void; | |
] => [ | |
trait $fn_name { | |
type ReturnType; | |
fn $fn_name( &self ); | |
} | |
];*/ | |
} | |
//trait OVERLOADED_GENERIC_FUNCTIONS {} | |
macro_rules! overload { | |
( [ $( $t:ident $(:$tr:ident)+ ),* ] | |
fn $func:ident( $( $arg:ident : $typ:ident ),+ ) $body:block | |
) => [ | |
impl< $( $t : $( $tr +)+ ),* > $func for ( $( $typ ),+ ) { | |
type ReturnType = (); | |
fn $func ( &self ) | |
{ | |
let & ( $( ref $arg ),+ ) = self; | |
$body | |
} | |
} | |
]; | |
( //[ $( $t:ident $(:$tr:ident)+ ),* ] | |
[ $( $T1:ident $(+$tr:ident)* ),* ] | |
fn $func:ident( $( $arg:ident : $typ:ident ),+ ) -> $ret:ty => $body:block | |
) => [ | |
impl< $( $t : $( $tr +)+ ),* > $func for ( $( $typ ),+ ) { | |
type ReturnType = $ret; | |
fn $func ( &self ) -> $ret | |
{ | |
let & ( $( ref $arg ),+ ) = self; | |
$body | |
} | |
} | |
]; | |
( | |
fn $func:ident( $( $arg:ident : $typ:ty ),+ ) | |
[ $( $T1:ident ($($positive_tr:ident),* $(!$negative_tr:ident),*) )* ] | |
// older syntax | |
/*[ $($T0:ident.)* ] [ $( #$T1:ident $(+$tr:ident)* );* ]*/ | |
$body:block | |
) => [ | |
impl | |
< | |
/*$($T0),*/ | |
$( $T1 : $( $tr +)* ),* | |
> $func for ( $( $typ ),+ ) { | |
type ReturnType = (); | |
fn $func ( &self ) | |
{ | |
let & ( $( ref $arg ),+ ) = self; | |
$body | |
} | |
} | |
]; | |
( | |
fn $func:ident( $( $arg:ident : $typ:ty ),+ ) -> $ret:ty | |
/*[ $($T0:ident.)* ]*/ //[ $( $T1:ident ($($positive_tr:ident),* $(!$negative_tr:ident),*) )* ] | |
//[ $($tyt:tt)* ] | |
//[ $( $t00:ident $(: $( +$tr00:ident )* $(. $(!$trc:ident),+ )* )* );* ] //SPECIAL Version XZ | |
//[ $( $t00:ident $(: $($tr00:ident)* )* ),* ] | |
//[ $( $t00:ident $(: $( $tr00:ident ),* $(! $($trc:ident),+ )* )* );* ] | |
[ $( $t00:ident ($( $tree0:ident )*) )* ] | |
$body:block | |
) => [ | |
impl | |
< | |
//$($tyt)* | |
$( $t00 : $($tree0+)* /*$($($trc+)*)*/ ),* // negative bounds not yet supported | |
/*$($T0),*/ | |
//$( $T1 : $( $positive_tr+ )* $(!$negative_tr +)* ),* | |
> $func for ( $( $typ ),+ ) { | |
type ReturnType = $ret; | |
fn $func ( &self ) -> $ret | |
{ | |
let &( $( ref $arg ),+ ) = self; | |
$body | |
} | |
} | |
]; | |
} | |
make_overloadable! { | |
fn mk(); | |
} | |
//#[cfg( pretty_expanded )] | |
overload! { | |
fn mk( s: (H, T), g: G ) -> (bool, u8) | |
//[ H() T(Debug) G(Debug, Copy, Clone) ] | |
//[ H, T: Debug, G: Debug + Copy + Clone ] // NOT WORKING | |
//[ H: Debug ! Sized, Clone; T: Debug, Add; G: Debug, Copy, Clone ] | |
[ H(Debug Sized Clone) T(Debug Add) G(Debug Copy Clone) ] | |
{ | |
println!("{:?}'tup; | |
'pkp | {:?}", s, g); | |
(false, 9) | |
} | |
}// | |
/* | |
macro_rules! mkfun { | |
[ ($($func:tt)*) => [$($gen:tt)*] $body:block | |
] => [ | |
//impl< /*$($gen)*/ > create for (i32) { | |
$($func:tt)* | |
where $($gen:tt)* | |
$body | |
//} | |
]; | |
} | |
mkfun!{ | |
(fn create(_: i32)) => [T: Copy] { | |
let g = 3 + 3; | |
} | |
} | |
*/ | |
/* | |
```{.rust} | |
haskell! { | |
mk :: U: Debug, Copy => () -> () { | |
} | |
} | |
``` | |
*/ | |
overload! { | |
[]fn mk( s: char, g: i32, c: char ) | |
{ | |
println!("{}; {:?}", s, g); | |
} | |
} | |
fn mkee<U>(s: i32, g: U) -> bool | |
where U: fmt::Debug + Copy | |
{ | |
println!("{}; {:?}", s, g); | |
false | |
} | |
fn mkmee<T: mk>(tuple: &T) -> T::ReturnType { | |
tuple.mk() | |
} | |
fn void() -> Result<i8, u8> { | |
Err(88) | |
} | |
fn none() { | |
} | |
fn main() { | |
println!("Hello, world!"); | |
//mk(32, 'a'); | |
((true, 43), 'Z').mk(); | |
//('F', 63, 'x').mk(); | |
mk(&((true, 43), 'Z')); | |
let vvv = void(); | |
let nnn = none(); | |
println!("{:?}; {:?}", vvv, nnn); | |
} | |
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