rust/tests/ui/parser/pat-recover-wildcards.rs
2024-01-28 16:12:21 +01:00

62 lines
1.2 KiB
Rust

// check that we can't do funny things with wildcards.
fn a() {
match 1 {
_ + 1 => () //~ error: expected one of `=>`, `if`, or `|`, found `+`
}
}
fn b() {
match 2 {
(_ % 4) => () //~ error: expected one of `)`, `,`, or `|`, found `%`
}
}
fn c() {
match 3 {
_.x() => () //~ error: expected one of `=>`, `if`, or `|`, found `.`
}
}
fn d() {
match 4 {
_..=4 => () //~ error: expected one of `=>`, `if`, or `|`, found `..=`
}
}
fn e() {
match 5 {
.._ => () //~ error: expected one of `=>`, `if`, or `|`, found reserved identifier `_`
}
}
fn f() {
match 6 {
0..._ => ()
//~^ error: inclusive range with no end
//~| error: expected one of `=>`, `if`, or `|`, found reserved identifier `_`
}
}
fn g() {
match 7 {
(_ * 0)..5 => () //~ error: expected one of `)`, `,`, or `|`, found `*`
}
}
fn h() {
match 8 {
..(_) => () //~ error: expected one of `=>`, `if`, or `|`, found `(`
}
}
fn i() {
match 9 {
4..=(2 + _) => ()
//~^ error: expected a pattern range bound, found an expression
//~| error: range pattern bounds cannot have parentheses
}
}
fn main() {}