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-rw-r--r--tests/ui/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.rs55
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;
+ };
+ }
+}