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| author | Mazdak Farrokhzad <twingoow@gmail.com> | 2019-11-19 13:10:12 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-11-19 13:10:12 +0100 |
| commit | 40deec82bcb9f13829f60a30d1bc3afedb9d5c8c (patch) | |
| tree | fada756da967ae655bd06e5ccbd9d13e1fca436a /src/librustc_error_codes | |
| parent | 49077c59a81cb1361bb41a8197cf5499d54677f0 (diff) | |
| parent | c981c994d44801df0a68566467b0bf059f714c3d (diff) | |
| download | rust-40deec82bcb9f13829f60a30d1bc3afedb9d5c8c.tar.gz rust-40deec82bcb9f13829f60a30d1bc3afedb9d5c8c.zip | |
Rollup merge of #66155 - GuillaumeGomez:long-err-explanation-E0594, r=Dylan-DPC
Add long error explanation for E0594 Part of #61137. r? @Dylan-DPC
Diffstat (limited to 'src/librustc_error_codes')
| -rw-r--r-- | src/librustc_error_codes/error_codes.rs | 2 | ||||
| -rw-r--r-- | src/librustc_error_codes/error_codes/E0594.md | 23 |
2 files changed, 24 insertions, 1 deletions
diff --git a/src/librustc_error_codes/error_codes.rs b/src/librustc_error_codes/error_codes.rs index 428cecf13a3..9fc375cc7b0 100644 --- a/src/librustc_error_codes/error_codes.rs +++ b/src/librustc_error_codes/error_codes.rs @@ -318,6 +318,7 @@ E0590: include_str!("./error_codes/E0590.md"), E0591: include_str!("./error_codes/E0591.md"), E0592: include_str!("./error_codes/E0592.md"), E0593: include_str!("./error_codes/E0593.md"), +E0594: include_str!("./error_codes/E0594.md"), E0595: include_str!("./error_codes/E0595.md"), E0596: include_str!("./error_codes/E0596.md"), E0597: include_str!("./error_codes/E0597.md"), @@ -566,7 +567,6 @@ E0744: include_str!("./error_codes/E0744.md"), // E0563, // cannot determine a type for this `impl Trait` removed in 6383de15 // E0564, // only named lifetimes are allowed in `impl Trait`, // but `{}` was found in the type `{}` - E0594, // cannot assign to {} // E0598, // lifetime of {} is too short to guarantee its contents can be... // E0611, // merged into E0616 // E0612, // merged into E0609 diff --git a/src/librustc_error_codes/error_codes/E0594.md b/src/librustc_error_codes/error_codes/E0594.md new file mode 100644 index 00000000000..ad8eb631e63 --- /dev/null +++ b/src/librustc_error_codes/error_codes/E0594.md @@ -0,0 +1,23 @@ +A non-mutable value was assigned a value. + +Erroneous code example: + +```compile_fail,E0594 +struct SolarSystem { + earth: i32, +} + +let ss = SolarSystem { earth: 3 }; +ss.earth = 2; // error! +``` + +To fix this error, declare `ss` as mutable by using the `mut` keyword: + +``` +struct SolarSystem { + earth: i32, +} + +let mut ss = SolarSystem { earth: 3 }; // declaring `ss` as mutable +ss.earth = 2; // ok! +``` |