98 lines
3.7 KiB
Rust
98 lines
3.7 KiB
Rust
//@ run-rustfix
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#![deny(if_let_rescope)]
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#![feature(stmt_expr_attributes)]
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#![allow(irrefutable_let_patterns, unused_parens)]
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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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if let Some(_value) = droppy().get() {
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// Should not lint
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}
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if let Some(_value) = droppy().get() {
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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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//~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021
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// do something
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} else {
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//~^ HELP: the value is now dropped here in Edition 2024
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// do something else
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}
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if let Some(_value) = droppy().get() {
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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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//~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021
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// do something
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} else if let Some(_value) = droppy().get() {
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//~^ HELP: the value is now dropped here in Edition 2024
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// do something else
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}
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//~^ HELP: the value is now dropped here in Edition 2024
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if droppy().get().is_some() {
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// Should not lint
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} else if let Some(_value) = droppy().get() {
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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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//~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021
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} else if droppy().get().is_none() {
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//~^ HELP: the value is now dropped here in Edition 2024
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}
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if let Some(1) = { if let Some(_value) = Droppy.get() { Some(1) } else { None } } {
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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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//~| HELP: the value is now dropped here in Edition 2024
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//~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021
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}
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if let () = { if let Some(_value) = Droppy.get() {} } {
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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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//~| HELP: the value is now dropped here in Edition 2024
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//~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021
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}
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#[rustfmt::skip]
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if (if let Some(_value) = droppy().get() { true } else { false }) {
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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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//~| HELP: the value is now dropped here in Edition 2024
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//~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021
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// do something
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} else if (((if let Some(_value) = droppy().get() { true } else { false }))) {
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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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//~| HELP: the value is now dropped here in Edition 2024
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//~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021
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}
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while let Some(_value) = droppy().get() {
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// Should not lint
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break;
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}
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while (if let Some(_value) = droppy().get() { false } else { true }) {
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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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//~| HELP: the value is now dropped here in Edition 2024
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//~| HELP: a `match` with a single arm can preserve the drop order up to Edition 2021
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}
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}
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