//@ run-rustfix #![deny(if_let_rescope)] #![feature(if_let_rescope)] #![allow(irrefutable_let_patterns)] fn droppy() -> Droppy { Droppy } struct Droppy; impl Drop for Droppy { fn drop(&mut self) { println!("dropped"); } } impl Droppy { fn get(&self) -> Option { None } } fn main() { if let Some(_value) = droppy().get() { // Should not lint } if let Some(_value) = droppy().get() { //~^ ERROR: `if let` assigns a shorter lifetime since Edition 2024 //~| WARN: this changes meaning in Rust 2024 //~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021 // do something } else { //~^ HELP: the value is now dropped here in Edition 2024 // do something else } if let Some(_value) = droppy().get() { //~^ ERROR: `if let` assigns a shorter lifetime since Edition 2024 //~| WARN: this changes meaning in Rust 2024 //~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021 // do something } else if let Some(_value) = droppy().get() { //~^ HELP: the value is now dropped here in Edition 2024 // do something else } //~^ HELP: the value is now dropped here in Edition 2024 if droppy().get().is_some() { // Should not lint } else if let Some(_value) = droppy().get() { //~^ ERROR: `if let` assigns a shorter lifetime since Edition 2024 //~| WARN: this changes meaning in Rust 2024 //~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021 } else if droppy().get().is_none() { //~^ HELP: the value is now dropped here in Edition 2024 } if let Some(1) = { if let Some(_value) = Droppy.get() { Some(1) } else { None } } { //~^ ERROR: `if let` assigns a shorter lifetime since Edition 2024 //~| WARN: this changes meaning in Rust 2024 //~| HELP: the value is now dropped here in Edition 2024 //~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021 } if let () = { if let Some(_value) = Droppy.get() {} } { //~^ ERROR: `if let` assigns a shorter lifetime since Edition 2024 //~| WARN: this changes meaning in Rust 2024 //~| HELP: the value is now dropped here in Edition 2024 //~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021 } }