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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/expr/if/if-let.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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"); + } +} |