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-rw-r--r--src/test/ui/structs-enums/struct-aliases.rs64
1 files changed, 64 insertions, 0 deletions
diff --git a/src/test/ui/structs-enums/struct-aliases.rs b/src/test/ui/structs-enums/struct-aliases.rs
new file mode 100644
index 000000000..b7aeed7bc
--- /dev/null
+++ b/src/test/ui/structs-enums/struct-aliases.rs
@@ -0,0 +1,64 @@
+// run-pass
+#![allow(non_shorthand_field_patterns)]
+
+use std::mem;
+
+struct S {
+ x: isize,
+ y: isize,
+}
+
+type S2 = S;
+
+struct S3<U,V> {
+ x: U,
+ y: V
+}
+
+type S4<U> = S3<U, char>;
+
+fn main() {
+ let s = S2 {
+ x: 1,
+ y: 2,
+ };
+ match s {
+ S2 {
+ x: x,
+ y: y
+ } => {
+ assert_eq!(x, 1);
+ assert_eq!(y, 2);
+ }
+ }
+ // check that generics can be specified from the pattern
+ let s = S4 {
+ x: 4,
+ y: 'a'
+ };
+ match s {
+ S4::<u8> {
+ x: x,
+ y: y
+ } => {
+ assert_eq!(x, 4);
+ assert_eq!(y, 'a');
+ assert_eq!(mem::size_of_val(&x), 1);
+ }
+ };
+ // check that generics can be specified from the constructor
+ let s = S4::<u16> {
+ x: 5,
+ y: 'b'
+ };
+ match s {
+ S4 {
+ x: x,
+ y: y
+ } => {
+ assert_eq!(x, 5);
+ assert_eq!(y, 'b');
+ assert_eq!(mem::size_of_val(&x), 2);
+ }
+ };
+}