Suggest `if let`/`let_else` for refutable pat in `let`

[rust.git] / src / test / ui / consts / const-match-check.matchck.stderr

diff --git a/src/test/ui/consts/const-match-check.matchck.stderr b/src/test/ui/consts/const-match-check.matchck.stderr
index f71490eba613541be69dc6956a977315fc1dac49..f89bbc0d42234447a3d195300f54c8165cf26679 100644 (file)
--- a/src/test/ui/consts/const-match-check.matchck.stderr
+++ b/src/test/ui/consts/const-match-check.matchck.stderr
@@ -7,10 +7,14 @@ LL | const X: i32 = { let 0 = 0; 0 };
    = 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 `i32`
-help: you might want to use `if let` to ignore the variant that isn't matched
+help: you might want to use `if let` to ignore the variants that aren't matched
    |
-LL | const X: i32 = { if let 0 = 0 { /* */ } 0 };
-   |                  ~~~~~~~~~~~~~~~~~~~~~~
+LL | const X: i32 = { if let 0 = 0 { todo!() } 0 };
+   |                  ++           ~~~~~~~~~~~
+help: alternatively, on nightly, you might want to use `#![feature(let_else)]` to handle the variants that aren't matched
+   |
+LL | const X: i32 = { let 0 = 0 else { todo!() }; 0 };
+   |                            ++++++++++++++++
 
 error[E0005]: refutable pattern in local binding: `i32::MIN..=-1_i32` and `1_i32..=i32::MAX` not covered
   --> $DIR/const-match-check.rs:8:23
@@ -21,10 +25,14 @@ LL | static Y: i32 = { let 0 = 0; 0 };
    = 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 `i32`
-help: you might want to use `if let` to ignore the variant that isn't matched
+help: you might want to use `if let` to ignore the variants that aren't matched
+   |
+LL | static Y: i32 = { if let 0 = 0 { todo!() } 0 };
+   |                   ++           ~~~~~~~~~~~
+help: alternatively, on nightly, you might want to use `#![feature(let_else)]` to handle the variants that aren't matched
    |
-LL | static Y: i32 = { if let 0 = 0 { /* */ } 0 };
-   |                   ~~~~~~~~~~~~~~~~~~~~~~
+LL | static Y: i32 = { let 0 = 0 else { todo!() }; 0 };
+   |                             ++++++++++++++++
 
 error[E0005]: refutable pattern in local binding: `i32::MIN..=-1_i32` and `1_i32..=i32::MAX` not covered
   --> $DIR/const-match-check.rs:13:26
@@ -35,10 +43,14 @@ LL |     const X: i32 = { let 0 = 0; 0 };
    = 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 `i32`
-help: you might want to use `if let` to ignore the variant that isn't matched
+help: you might want to use `if let` to ignore the variants that aren't matched
    |
-LL |     const X: i32 = { if let 0 = 0 { /* */ } 0 };
-   |                      ~~~~~~~~~~~~~~~~~~~~~~
+LL |     const X: i32 = { if let 0 = 0 { todo!() } 0 };
+   |                      ++           ~~~~~~~~~~~
+help: alternatively, on nightly, you might want to use `#![feature(let_else)]` to handle the variants that aren't matched
+   |
+LL |     const X: i32 = { let 0 = 0 else { todo!() }; 0 };
+   |                                ++++++++++++++++
 
 error[E0005]: refutable pattern in local binding: `i32::MIN..=-1_i32` and `1_i32..=i32::MAX` not covered
   --> $DIR/const-match-check.rs:19:26
@@ -49,10 +61,14 @@ LL |     const X: i32 = { let 0 = 0; 0 };
    = 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 `i32`
-help: you might want to use `if let` to ignore the variant that isn't matched
+help: you might want to use `if let` to ignore the variants that aren't matched
+   |
+LL |     const X: i32 = { if let 0 = 0 { todo!() } 0 };
+   |                      ++           ~~~~~~~~~~~
+help: alternatively, on nightly, you might want to use `#![feature(let_else)]` to handle the variants that aren't matched
    |
-LL |     const X: i32 = { if let 0 = 0 { /* */ } 0 };
-   |                      ~~~~~~~~~~~~~~~~~~~~~~
+LL |     const X: i32 = { let 0 = 0 else { todo!() }; 0 };
+   |                                ++++++++++++++++
 
 error: aborting due to 4 previous errors