summaryrefslogtreecommitdiffstats
path: root/tests/ui/nll/lub-match.rs
diff options
context:
space:
mode:
Diffstat (limited to 'tests/ui/nll/lub-match.rs')
-rw-r--r--tests/ui/nll/lub-match.rs47
1 files changed, 47 insertions, 0 deletions
diff --git a/tests/ui/nll/lub-match.rs b/tests/ui/nll/lub-match.rs
new file mode 100644
index 000000000..454dd1fc6
--- /dev/null
+++ b/tests/ui/nll/lub-match.rs
@@ -0,0 +1,47 @@
+// Test that we correctly consider the type of `match` to be the LUB
+// of the various arms, particularly in the case where regions are
+// involved.
+
+pub fn opt_str0<'a>(maybestr: &'a Option<String>) -> &'a str {
+ match *maybestr {
+ Some(ref s) => {
+ let s: &'a str = s;
+ s
+ }
+ None => "(none)",
+ }
+}
+
+pub fn opt_str1<'a>(maybestr: &'a Option<String>) -> &'a str {
+ match *maybestr {
+ None => "(none)",
+ Some(ref s) => {
+ let s: &'a str = s;
+ s
+ }
+ }
+}
+
+pub fn opt_str2<'a>(maybestr: &'a Option<String>) -> &'static str {
+ match *maybestr {
+ None => "(none)",
+ Some(ref s) => {
+ let s: &'a str = s;
+ s
+ //~^ ERROR lifetime may not live long enough
+ }
+ }
+}
+
+pub fn opt_str3<'a>(maybestr: &'a Option<String>) -> &'static str {
+ match *maybestr {
+ Some(ref s) => {
+ let s: &'a str = s;
+ s
+ //~^ ERROR lifetime may not live long enough
+ }
+ None => "(none)",
+ }
+}
+
+fn main() {}