diff options
Diffstat (limited to 'src/test/ui/structs-enums/struct-aliases.rs')
-rw-r--r-- | src/test/ui/structs-enums/struct-aliases.rs | 64 |
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); + } + }; +} |