diff options
Diffstat (limited to 'src/test/ui/expr/if/if-let.rs')
-rw-r--r-- | src/test/ui/expr/if/if-let.rs | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/test/ui/expr/if/if-let.rs b/src/test/ui/expr/if/if-let.rs new file mode 100644 index 000000000..7fdd2be95 --- /dev/null +++ b/src/test/ui/expr/if/if-let.rs @@ -0,0 +1,49 @@ +// check-pass + +fn macros() { + macro_rules! foo { + ($p:pat, $e:expr, $b:block) => {{ + if let $p = $e $b + //~^ WARN irrefutable `if let` + //~| WARN irrefutable `if let` + }} + } + macro_rules! bar{ + ($p:pat, $e:expr, $b:block) => {{ + foo!($p, $e, $b) + }} + } + + foo!(a, 1, { + println!("irrefutable pattern"); + }); + bar!(a, 1, { + println!("irrefutable pattern"); + }); +} + +pub fn main() { + if let a = 1 { //~ WARN irrefutable `if let` + println!("irrefutable pattern"); + } + + if let a = 1 { //~ WARN irrefutable `if let` + println!("irrefutable pattern"); + } else if true { + println!("else-if in irrefutable `if let`"); + } else { + println!("else in irrefutable `if let`"); + } + + if let 1 = 2 { + println!("refutable pattern"); + } else if let a = 1 { //~ WARN irrefutable `if let` + println!("irrefutable pattern"); + } + + if true { + println!("if"); + } else if let a = 1 { //~ WARN irrefutable `if let` + println!("irrefutable pattern"); + } +} |