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|
#![deny(elided_lifetimes_in_paths)]
#![allow(unused)] // todo remove
mod deconstruct_pat;
pub mod usefulness;
#[cfg(test)]
mod tests {
use crate::diagnostics::tests::check_diagnostics;
use super::*;
#[test]
fn unit() {
check_diagnostics(
r#"
fn main() {
match () { () => {} }
match () { _ => {} }
match () { }
//^^ Missing match arm
}
"#,
);
}
#[test]
fn tuple_of_units() {
check_diagnostics(
r#"
fn main() {
match ((), ()) { ((), ()) => {} }
match ((), ()) { ((), _) => {} }
match ((), ()) { (_, _) => {} }
match ((), ()) { _ => {} }
match ((), ()) { }
//^^^^^^^^ Missing match arm
}
"#,
);
}
#[test]
fn tuple_with_ellipsis() {
// TODO: test non-exhaustive match with ellipsis in the middle
// of a pattern, check reported witness
check_diagnostics(
r#"
struct A; struct B;
fn main(v: (A, (), B)) {
match v { (A, ..) => {} }
match v { (.., B) => {} }
match v { (A, .., B) => {} }
match v { (..) => {} }
match v { }
//^ Missing match arm
}
"#,
);
}
#[test]
fn strukt() {
check_diagnostics(
r#"
struct A; struct B;
struct S { a: A, b: B}
fn main(v: S) {
match v { S { a, b } => {} }
match v { S { a: _, b: _ } => {} }
match v { S { .. } => {} }
match v { _ => {} }
match v { }
//^ Missing match arm
}
"#,
);
}
}
|
