diff options
Diffstat (limited to 'compiler/rustc_error_codes/src/error_codes/E0026.md')
-rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0026.md | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes/E0026.md b/compiler/rustc_error_codes/src/error_codes/E0026.md new file mode 100644 index 000000000..72c575aab --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0026.md @@ -0,0 +1,34 @@ +A struct pattern attempted to extract a non-existent field from a struct. + +Erroneous code example: + +```compile_fail,E0026 +struct Thing { + x: u32, + y: u32, +} + +let thing = Thing { x: 0, y: 0 }; + +match thing { + Thing { x, z } => {} // error: `Thing::z` field doesn't exist +} +``` + +If you are using shorthand field patterns but want to refer to the struct field +by a different name, you should rename it explicitly. Struct fields are +identified by the name used before the colon `:` so struct patterns should +resemble the declaration of the struct type being matched. + +``` +struct Thing { + x: u32, + y: u32, +} + +let thing = Thing { x: 0, y: 0 }; + +match thing { + Thing { x, y: z } => {} // we renamed `y` to `z` +} +``` |