41 lines
873 B
Rust
41 lines
873 B
Rust
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// This test ensures that no suggestion is emitted if the span originates from
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// an expansion that is probably not under a user's control.
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//@ edition:2021
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//@ compile-flags: -Z unstable-options
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#![deny(if_let_rescope)]
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#![allow(irrefutable_let_patterns)]
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macro_rules! edition_2021_if_let {
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($p:pat, $e:expr, { $($conseq:tt)* } { $($alt:tt)* }) => {
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if let $p = $e { $($conseq)* } else { $($alt)* }
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//~^ ERROR `if let` assigns a shorter lifetime since Edition 2024
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//~| WARN this changes meaning in Rust 2024
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}
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}
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fn droppy() -> Droppy {
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Droppy
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}
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struct Droppy;
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impl Drop for Droppy {
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fn drop(&mut self) {
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println!("dropped");
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}
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}
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impl Droppy {
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fn get(&self) -> Option<u8> {
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None
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}
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}
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fn main() {
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edition_2021_if_let! {
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Some(_value),
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droppy().get(),
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{}
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{}
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};
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}
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