[rustc.git] / src / test / ui / feature-gates / feature-gate-exhaustive-patterns.stderr

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
   | 
  ::: $SRC_DIR/libcore/result.rs:LL:COL
   |
LL |     Err(#[stable(feature = "rust1", since = "1.0.0")] E),
   |     --- 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: the matched value is of type `std::result::Result<u32, !>`
help: you might want to use `if let` to ignore the variant that isn't matched
   |
LL |     if let Ok(_x) = foo() { /* */ }
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0005`.
Commit	Line	Data
0531ce1d	1	error[E0005]: refutable pattern in local binding: `Err(_)` not covered
e74abb32	2	--> $DIR/feature-gate-exhaustive-patterns.rs:8:9
0531ce1d	3	\|
532ac7d7	4	LL \| let Ok(_x) = foo();
0531ce1d	5	\| ^^^^^^ pattern `Err(_)` not covered
ba9703b0 XL	6	\|
	7	::: $SRC_DIR/libcore/result.rs:LL:COL
	8	\|
	9	LL \| Err(#[stable(feature = "rust1", since = "1.0.0")] E),
	10	\| --- not covered
e74abb32 XL	11	\|
	12	= note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant
	13	= note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html
ba9703b0	14	= note: the matched value is of type `std::result::Result<u32, !>`
e74abb32 XL	15	help: you might want to use `if let` to ignore the variant that isn't matched
	16	\|
	17	LL \| if let Ok(_x) = foo() { /* */ }
	18	\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
0531ce1d XL	19
	20	error: aborting due to previous error
	21
	22	For more information about this error, try `rustc --explain E0005`.