diff options
Diffstat (limited to 'tests/ui/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.rs')
-rw-r--r-- | tests/ui/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.rs | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tests/ui/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.rs b/tests/ui/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.rs new file mode 100644 index 000000000..2a6c14435 --- /dev/null +++ b/tests/ui/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.rs @@ -0,0 +1,55 @@ +#![feature(let_chains)] + +fn main() { + let opt = Some(1i32); + + let Some(n) = opt else { + return; + }; + let Some(n) = opt && n == 1 else { + //~^ ERROR a `&&` expression cannot be directly assigned in `let...else` + //~| ERROR mismatched types + //~| ERROR mismatched types + return; + }; + let Some(n) = opt && let another = n else { + //~^ ERROR a `&&` expression cannot be directly assigned in `let...else` + //~| ERROR `let` expressions are not supported here + //~| ERROR mismatched types + //~| ERROR mismatched types + //~| ERROR expected expression, found `let` statement + return; + }; + + if let Some(n) = opt else { + //~^ ERROR this `if` expression is missing a block after the condition + return; + }; + if let Some(n) = opt && n == 1 else { + //~^ ERROR this `if` expression is missing a block after the condition + return; + }; + if let Some(n) = opt && let another = n else { + //~^ ERROR this `if` expression is missing a block after the condition + return; + }; + + { + while let Some(n) = opt else { + //~^ ERROR expected `{`, found keyword `else` + return; + }; + } + { + while let Some(n) = opt && n == 1 else { + //~^ ERROR expected `{`, found keyword `else` + return; + }; + } + { + while let Some(n) = opt && let another = n else { + //~^ ERROR expected `{`, found keyword `else` + return; + }; + } +} |