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//@aux-build:proc_macros.rs
#![allow(unused, clippy::multiple_bound_locations)]
#![warn(clippy::needless_maybe_sized)]
extern crate proc_macros;
use proc_macros::external;
fn directly<T: Sized>(t: &T) {}
//~^ needless_maybe_sized
trait A: Sized {}
trait B: A {}
fn depth_1<T: A>(t: &T) {}
//~^ needless_maybe_sized
fn depth_2<T: B>(t: &T) {}
//~^ needless_maybe_sized
// We only need to show one
fn multiple_paths<T: A + B>(t: &T) {}
//~^ needless_maybe_sized
fn in_where<T>(t: &T)
where
T: Sized,
//~^ needless_maybe_sized
{
}
fn mixed_1<T: Sized>(t: &T)
//~^ needless_maybe_sized
{
}
fn mixed_2<T>(t: &T)
//~^ needless_maybe_sized
where
T: Sized,
{
}
fn mixed_3<T>(t: &T)
where
T: Sized,
//~^ needless_maybe_sized
{
}
struct Struct<T: Sized>(T);
//~^ needless_maybe_sized
impl<T: Sized> Struct<T> {
//~^ needless_maybe_sized
fn method<U: Sized>(&self) {}
//~^ needless_maybe_sized
}
enum Enum<T: Sized + 'static> {
//~^ needless_maybe_sized
Variant(&'static T),
}
union Union<'a, T: Sized> {
//~^ needless_maybe_sized
a: &'a T,
}
trait Trait<T: Sized> {
//~^ needless_maybe_sized
fn trait_method<U: Sized>() {}
//~^ needless_maybe_sized
type GAT<U: Sized>;
//~^ needless_maybe_sized
type Assoc: Sized + ?Sized; // False negative
}
trait SecondInTrait: Send + Sized {}
fn second_in_trait<T: SecondInTrait>() {}
//~^ needless_maybe_sized
fn impl_trait(_: &(impl Sized)) {}
//~^ needless_maybe_sized
trait GenericTrait<T>: Sized {}
fn in_generic_trait<T: GenericTrait<U>, U>() {}
//~^ needless_maybe_sized
mod larger_graph {
// C1 C2 Sized
// \ /\ /
// B1 B2
// \ /
// A1
trait C1 {}
trait C2 {}
trait B1: C1 + C2 {}
trait B2: C2 + Sized {}
trait A1: B1 + B2 {}
fn larger_graph<T: A1>() {}
//~^ needless_maybe_sized
}
// Should not lint
fn sized<T: Sized>() {}
fn maybe_sized<T: ?Sized>() {}
struct SeparateBounds<T: ?Sized>(T);
impl<T: Sized> SeparateBounds<T> {}
trait P {}
trait Q: P {}
fn ok_depth_1<T: P + ?Sized>() {}
fn ok_depth_2<T: Q + ?Sized>() {}
external! {
fn in_macro<T: Clone + ?Sized>(t: &T) {}
fn with_local_clone<T: $Clone + ?Sized>(t: &T) {}
}
#[derive(Clone)]
struct InDerive<T: ?Sized> {
t: T,
}
struct Refined<T: ?Sized>(T);
impl<T: Sized> Refined<T> {}
fn main() {}
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