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// Test some cases where or-patterns may ostensibly be allowed but are in fact not.
// This is not a semantic test. We only test parsing.
fn main() {}
enum E { A, B }
use E::*;
fn no_top_level_or_patterns() {
// We do *not* allow or-patterns at the top level of lambdas...
let _ = |A | B: E| ();
//~^ ERROR expected identifier, found
// -------- This looks like an or-pattern but is in fact `|A| (B: E | ())`.
}
fn no_top_level_or_patterns_2() {
// ...and for now neither do we allow or-patterns at the top level of functions.
fn fun1(A | B: E) {}
//~^ ERROR function parameters require top-level or-patterns in parentheses
fn fun2(| A | B: E) {}
//~^ ERROR function parameters require top-level or-patterns in parentheses
// We don't allow top-level or-patterns before type annotation in let-statements because we
// want to reserve this syntactic space for possible future type ascription.
let A | B: E = A;
//~^ ERROR `let` bindings require top-level or-patterns in parentheses
let | A | B: E = A;
//~^ ERROR `let` bindings require top-level or-patterns in parentheses
let (A | B): E = A; // ok -- wrapped in parens
}
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