rust-clippy/tests/ui/from_over_into.fixed
2023-05-03 20:55:14 +02:00

91 lines
1.5 KiB
Rust

//@run-rustfix
#![feature(type_alias_impl_trait)]
#![warn(clippy::from_over_into)]
#![allow(unused)]
// this should throw an error
struct StringWrapper(String);
impl From<String> for StringWrapper {
fn from(val: String) -> Self {
StringWrapper(val)
}
}
struct SelfType(String);
impl From<String> for SelfType {
fn from(val: String) -> Self {
SelfType(String::new())
}
}
#[derive(Default)]
struct X;
impl X {
const FOO: &'static str = "a";
}
struct SelfKeywords;
impl From<X> for SelfKeywords {
fn from(val: X) -> Self {
let _ = X;
let _ = X::FOO;
let _: X = val;
SelfKeywords
}
}
struct ExplicitPaths(bool);
impl core::convert::From<crate::ExplicitPaths> for bool {
fn from(mut val: crate::ExplicitPaths) -> Self {
let in_closure = || val.0;
val.0 = false;
val.0
}
}
// this is fine
struct A(String);
impl From<String> for A {
fn from(s: String) -> A {
A(s)
}
}
#[clippy::msrv = "1.40"]
fn msrv_1_40() {
struct FromOverInto<T>(Vec<T>);
impl<T> Into<FromOverInto<T>> for Vec<T> {
fn into(self) -> FromOverInto<T> {
FromOverInto(self)
}
}
}
#[clippy::msrv = "1.41"]
fn msrv_1_41() {
struct FromOverInto<T>(Vec<T>);
impl<T> From<Vec<T>> for FromOverInto<T> {
fn from(val: Vec<T>) -> Self {
FromOverInto(val)
}
}
}
type Opaque = impl Sized;
struct IntoOpaque;
impl Into<Opaque> for IntoOpaque {
fn into(self) -> Opaque {}
}
fn main() {}