50 lines
1.0 KiB
Rust
50 lines
1.0 KiB
Rust
#![warn(clippy::from_over_into)]
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struct InMacro(String);
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macro_rules! in_macro {
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() => {
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Self::new()
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};
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}
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impl Into<InMacro> for String {
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//~^ ERROR: an implementation of `From` is preferred since it gives you `Into<_>` for free
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fn into(self) -> InMacro {
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InMacro(in_macro!())
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}
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}
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struct WeirdUpperSelf;
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impl Into<WeirdUpperSelf> for &'static [u8] {
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//~^ ERROR: an implementation of `From` is preferred since it gives you `Into<_>` for free
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fn into(self) -> WeirdUpperSelf {
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let _ = Self::default();
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WeirdUpperSelf
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}
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}
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struct ContainsVal;
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impl Into<u8> for ContainsVal {
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//~^ ERROR: an implementation of `From` is preferred since it gives you `Into<_>` for free
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fn into(self) -> u8 {
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let val = 1;
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val + 1
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}
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}
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pub struct Lval<T>(T);
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pub struct Rval<T>(T);
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impl<T> Into<Rval<Self>> for Lval<T> {
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//~^ ERROR: an implementation of `From` is preferred since it gives you `Into<_>` for free
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fn into(self) -> Rval<Self> {
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Rval(self)
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}
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}
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fn main() {}
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