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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/feature-gates/feature-gate-exhaustive-patterns.stderr | |
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 '')
-rw-r--r-- | src/test/ui/feature-gates/feature-gate-exhaustive-patterns.stderr | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/test/ui/feature-gates/feature-gate-exhaustive-patterns.stderr b/src/test/ui/feature-gates/feature-gate-exhaustive-patterns.stderr new file mode 100644 index 000000000..f8349391a --- /dev/null +++ b/src/test/ui/feature-gates/feature-gate-exhaustive-patterns.stderr @@ -0,0 +1,29 @@ +error[E0005]: refutable pattern in local binding: `Err(_)` not covered + --> $DIR/feature-gate-exhaustive-patterns.rs:8:9 + | +LL | let Ok(_x) = foo(); + | ^^^^^^ pattern `Err(_)` not covered + | + = note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant + = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html +note: `Result<u32, !>` defined here + --> $SRC_DIR/core/src/result.rs:LL:COL + | +LL | pub enum Result<T, E> { + | --------------------- +... +LL | Err(#[stable(feature = "rust1", since = "1.0.0")] E), + | ^^^ not covered + = note: the matched value is of type `Result<u32, !>` +help: you might want to use `if let` to ignore the variant that isn't matched + | +LL | let _x = if let Ok(_x) = foo() { _x } else { todo!() }; + | +++++++++++ +++++++++++++++++++++++ +help: alternatively, on nightly, you might want to use `#![feature(let_else)]` to handle the variant that isn't matched + | +LL | let Ok(_x) = foo() else { todo!() }; + | ++++++++++++++++ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0005`. |