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//@ check-pass
fn macros() {
macro_rules! foo {
($p:pat, $e:expr, $b:block) => {{
if let $p = $e $b
//~^ WARN irrefutable `if let`
//~| WARN irrefutable `if let`
}}
}
macro_rules! bar{
($p:pat, $e:expr, $b:block) => {{
foo!($p, $e, $b)
}}
}
foo!(a, 1, {
println!("irrefutable pattern");
});
bar!(a, 1, {
println!("irrefutable pattern");
});
}
pub fn main() {
if let a = 1 { //~ WARN irrefutable `if let`
println!("irrefutable pattern");
}
if let a = 1 { //~ WARN irrefutable `if let`
println!("irrefutable pattern");
} else if true {
println!("else-if in irrefutable `if let`");
} else {
println!("else in irrefutable `if let`");
}
if let 1 = 2 {
println!("refutable pattern");
} else if let a = 1 { //~ WARN irrefutable `if let`
println!("irrefutable pattern");
}
if true {
println!("if");
} else if let a = 1 { //~ WARN irrefutable `if let`
println!("irrefutable pattern");
}
}
|
