102 lines
1.7 KiB
Rust
102 lines
1.7 KiB
Rust
#![feature(type_alias_impl_trait)]
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#![warn(clippy::from_over_into)]
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#![allow(non_local_definitions)]
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#![allow(unused)]
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// this should throw an error
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struct StringWrapper(String);
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impl From<String> for StringWrapper {
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fn from(val: String) -> Self {
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StringWrapper(val)
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}
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}
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struct SelfType(String);
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impl From<String> for SelfType {
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fn from(val: String) -> Self {
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SelfType(String::new())
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}
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}
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#[derive(Default)]
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struct X;
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impl X {
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const FOO: &'static str = "a";
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}
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struct SelfKeywords;
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impl From<X> for SelfKeywords {
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fn from(val: X) -> Self {
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let _ = X;
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let _ = X::FOO;
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let _: X = val;
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SelfKeywords
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}
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}
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struct ExplicitPaths(bool);
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impl core::convert::From<crate::ExplicitPaths> for bool {
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fn from(mut val: crate::ExplicitPaths) -> Self {
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let in_closure = || val.0;
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val.0 = false;
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val.0
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}
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}
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// this is fine
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struct A(String);
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impl From<String> for A {
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fn from(s: String) -> A {
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A(s)
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}
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}
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struct PathInExpansion;
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impl From<PathInExpansion> for String {
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fn from(val: PathInExpansion) -> Self {
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// non self/Self paths in expansions are fine
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panic!()
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}
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}
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#[clippy::msrv = "1.40"]
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fn msrv_1_40() {
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struct FromOverInto<T>(Vec<T>);
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impl<T> Into<FromOverInto<T>> for Vec<T> {
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fn into(self) -> FromOverInto<T> {
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FromOverInto(self)
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}
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}
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}
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#[clippy::msrv = "1.41"]
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fn msrv_1_41() {
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struct FromOverInto<T>(Vec<T>);
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impl<T> From<Vec<T>> for FromOverInto<T> {
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fn from(val: Vec<T>) -> Self {
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FromOverInto(val)
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}
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}
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}
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fn issue_12138() {
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struct Hello;
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impl From<Hello> for () {
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fn from(val: Hello) {}
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}
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}
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fn main() {}
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