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#![deny(clippy::trait_duplication_in_bounds)]
#![allow(unused)]
#![feature(associated_const_equality, const_trait_impl)]
use std::any::Any;
fn bad_foo<T: Clone + Clone + Clone + Copy, U: Clone + Copy>(arg0: T, argo1: U) {
//~^ trait_duplication_in_bounds
unimplemented!();
}
fn bad_bar<T, U>(arg0: T, arg1: U)
where
T: Clone + Clone + Clone + Copy,
//~^ trait_duplication_in_bounds
U: Clone + Copy,
{
unimplemented!();
}
fn good_bar<T: Clone + Copy, U: Clone + Copy>(arg0: T, arg1: U) {
unimplemented!();
}
fn good_foo<T, U>(arg0: T, arg1: U)
where
T: Clone + Copy,
U: Clone + Copy,
{
unimplemented!();
}
trait GoodSelfTraitBound: Clone + Copy {
fn f();
}
trait GoodSelfWhereClause {
fn f()
where
Self: Clone + Copy;
}
trait BadSelfTraitBound: Clone + Clone + Clone {
//~^ trait_duplication_in_bounds
fn f();
}
trait BadSelfWhereClause {
fn f()
where
Self: Clone + Clone + Clone;
//~^ trait_duplication_in_bounds
}
trait GoodTraitBound<T: Clone + Copy, U: Clone + Copy> {
fn f();
}
trait GoodWhereClause<T, U> {
fn f()
where
T: Clone + Copy,
U: Clone + Copy;
}
trait BadTraitBound<T: Clone + Clone + Clone + Copy, U: Clone + Copy> {
//~^ trait_duplication_in_bounds
fn f();
}
trait BadWhereClause<T, U> {
fn f()
where
T: Clone + Clone + Clone + Copy,
//~^ trait_duplication_in_bounds
U: Clone + Copy;
}
struct GoodStructBound<T: Clone + Copy, U: Clone + Copy> {
t: T,
u: U,
}
impl<T: Clone + Copy, U: Clone + Copy> GoodTraitBound<T, U> for GoodStructBound<T, U> {
// this should not warn
fn f() {}
}
struct GoodStructWhereClause;
impl<T, U> GoodTraitBound<T, U> for GoodStructWhereClause
where
T: Clone + Copy,
U: Clone + Copy,
{
// this should not warn
fn f() {}
}
fn no_error_separate_arg_bounds(program: impl AsRef<()>, dir: impl AsRef<()>, args: &[impl AsRef<()>]) {}
trait GenericTrait<T> {}
fn good_generic<T: GenericTrait<u64> + GenericTrait<u32>>(arg0: T) {
unimplemented!();
}
fn bad_generic<T: GenericTrait<u64> + GenericTrait<u32> + GenericTrait<u64>>(arg0: T) {
//~^ trait_duplication_in_bounds
unimplemented!();
}
mod foo {
pub trait Clone {}
}
fn qualified_path<T: std::clone::Clone + Clone + foo::Clone>(arg0: T) {
//~^ trait_duplication_in_bounds
unimplemented!();
}
fn good_trait_object(arg0: &(dyn Any + Send)) {
unimplemented!();
}
fn bad_trait_object(arg0: &(dyn Any + Send + Send)) {
//~^ trait_duplication_in_bounds
unimplemented!();
}
trait Proj {
type S;
}
impl Proj for () {
type S = ();
}
impl Proj for i32 {
type S = i32;
}
trait Base<T> {
fn is_base(&self);
}
trait Derived<B: Proj>: Base<B::S> + Base<()> {
fn is_derived(&self);
}
fn f<P: Proj>(obj: &dyn Derived<P>) {
obj.is_derived();
Base::<P::S>::is_base(obj);
Base::<()>::is_base(obj);
}
// #13476
trait Value<const N: usize> {}
fn const_generic<T: Value<0> + Value<1>>() {}
// #11067 and #9626
fn assoc_tys_generics<'a, 'b, T, U>()
where
T: IntoIterator<Item = ()> + IntoIterator<Item = i32>,
U: From<&'a str> + From<&'b [u16]>,
{
}
// #13476
const trait ConstTrait {}
const fn const_trait_bounds_good<T: ConstTrait + [const] ConstTrait>() {}
const fn const_trait_bounds_bad<T: [const] ConstTrait + [const] ConstTrait>() {}
//~^ trait_duplication_in_bounds
fn projections<T, U, V>()
where
U: ToOwned,
V: ToOwned,
T: IntoIterator<Item = U::Owned> + IntoIterator<Item = U::Owned>,
//~^ trait_duplication_in_bounds
V: IntoIterator<Item = U::Owned> + IntoIterator<Item = V::Owned>,
{
}
fn main() {
let _x: fn(_) = f::<()>;
let _x: fn(_) = f::<i32>;
}
// #13706
fn assoc_tys_bounds<T>()
where
T: Iterator<Item: Clone> + Iterator<Item: Clone>,
{
}
trait AssocConstTrait {
const ASSOC: usize;
}
fn assoc_const_args<T>()
where
T: AssocConstTrait<ASSOC = 0> + AssocConstTrait<ASSOC = 0>,
//~^ trait_duplication_in_bounds
{
}
|
