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|
// check-pass
// Ensure non-capturing Closure passes CoerceMany.
fn foo(x: usize) -> usize {
0
}
fn bar(x: usize) -> usize {
1
}
fn main() {
// One FnDef and one non-capturing Closure
let _ = match 0 {
0 => foo,
2 => |a| 2,
_ => unimplemented!(),
};
let _ = match 0 {
2 => |a| 2,
0 => foo,
_ => unimplemented!(),
};
let _ = [foo, |a| 2];
let _ = [|a| 2, foo];
// Two FnDefs and one non-capturing Closure
let _ = match 0 {
0 => foo,
1 => bar,
2 => |a| 2,
_ => unimplemented!(),
};
let _ = match 0 {
0 => foo,
2 => |a| 2,
1 => bar,
_ => unimplemented!(),
};
let _ = match 0 {
2 => |a| 2,
0 => foo,
1 => bar,
_ => unimplemented!(),
};
let _ = [foo, bar, |a| 2];
let _ = [foo, |a| 2, bar];
let _ = [|a| 2, foo, bar];
// One FnDef and two non-capturing Closures
let _ = match 0 {
0 => foo,
1 => |a| 1,
2 => |a| 2,
_ => unimplemented!(),
};
let _ = match 0 {
1 => |a| 1,
0 => foo,
2 => |a| 2,
_ => unimplemented!(),
};
let _ = match 0 {
1 => |a| 1,
2 => |a| 2,
0 => foo,
_ => unimplemented!(),
};
let _ = [foo, |a| 1, |a| 2];
let _ = [|a| 1, foo, |a| 2];
let _ = [|a| 1, |a| 2, foo];
// Three non-capturing Closures
let _ = match 0 {
0 => |a: usize| 0,
1 => |a| 1,
2 => |a| 2,
_ => unimplemented!(),
};
let _ = [|a: usize| 0, |a| 1, |a| 2];
// Three non-capturing Closures variable
let clo0 = |a: usize| 0;
let clo1 = |a| 1;
let clo2 = |a| 2;
let _ = match 0 {
0 => clo0,
1 => clo1,
2 => clo2,
_ => unimplemented!(),
};
let clo0 = |a: usize| 0;
let clo1 = |a| 1;
let clo2 = |a| 2;
let _ = [clo0, clo1, clo2];
// --- Function pointer related part
// Closure is not in a variable
type FnPointer = fn(usize) -> usize;
let _ = match 0 {
0 => foo as FnPointer,
2 => |a| 2,
_ => unimplemented!(),
};
let _ = match 0 {
2 => |a| 2,
0 => foo as FnPointer,
_ => unimplemented!(),
};
let _ = [foo as FnPointer, |a| 2];
let _ = [|a| 2, foo as FnPointer];
let _ = [foo, bar, |x| x];
let _ = [foo as FnPointer, bar, |x| x];
let _ = [foo, bar as FnPointer, |x| x];
let _ = [foo, bar, (|x| x) as FnPointer];
let _ = [foo as FnPointer, bar as FnPointer, |x| x];
// Closure is in a variable
let x = |a| 2;
let _ = match 0 {
0 => foo as FnPointer,
2 => x,
_ => unimplemented!(),
};
let x = |a| 2;
let _ = match 0 {
2 => x,
0 => foo as FnPointer,
_ => unimplemented!(),
};
let x = |a| 2;
let _ = [foo as FnPointer, x];
let _ = [x, foo as FnPointer];
let x = |a| 2;
let _ = [foo, bar, x];
let x: FnPointer = |a| 2;
let _ = [foo, bar, x];
let x = |a| 2;
let _ = [foo, bar as FnPointer, x];
let x = |a| 2;
let _ = [foo as FnPointer, bar, x];
let x = |a| 2;
let _ = [foo as FnPointer, bar as FnPointer, x];
}
|
