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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 /compiler/rustc_error_codes/src/error_codes/E0639.md | |
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 'compiler/rustc_error_codes/src/error_codes/E0639.md')
-rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0639.md | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes/E0639.md b/compiler/rustc_error_codes/src/error_codes/E0639.md new file mode 100644 index 000000000..4646e37fb --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0639.md @@ -0,0 +1,19 @@ +This error indicates that the struct, enum or enum variant cannot be +instantiated from outside of the defining crate as it has been marked +as `non_exhaustive` and as such more fields/variants may be added in +future that could cause adverse side effects for this code. + +Erroneous code example: + +```ignore (it only works cross-crate) +#[non_exhaustive] +pub struct NormalStruct { + pub first_field: u16, + pub second_field: u16, +} + +let ns = NormalStruct { first_field: 640, second_field: 480 }; // error! +``` + +It is recommended that you look for a `new` function or equivalent in the +crate's documentation. |