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tell people what to do when removing an error code

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This commit is contained in:
Ralf Jung 2023-08-27 19:12:42 +02:00
parent b60f7b51a2
commit d7c8950838
2 changed files with 7 additions and 2 deletions
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3
compiler/rustc_error_codes/src/error_codes.rs
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@ -516,7 +516,8 @@ E0793: include_str!("./error_codes/E0793.md"),
E0794: include_str!("./error_codes/E0794.md"), E0794: include_str!("./error_codes/E0794.md"),
} }
// Undocumented removed error codes. Note that many removed error codes are documented. // Undocumented removed error codes. Note that many removed error codes are kept in the list above
// and marked as no-longer emitted with a note in the markdown file (see E0001 for an example).
// E0006, // merged with E0005 // E0006, // merged with E0005
// E0008, // cannot bind by-move into a pattern guard // E0008, // cannot bind by-move into a pattern guard
// E0019, // merged into E0015 // E0019, // merged into E0015

6
src/tools/tidy/src/error_codes.rs
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@ -354,7 +354,11 @@ fn check_error_codes_used(
for code in error_codes { for code in error_codes {
if !found_codes.contains(code) && !no_longer_emitted.contains(code) { if !found_codes.contains(code) && !no_longer_emitted.contains(code) {
errors.push(format!("Error code `{code}` exists, but is not emitted by the compiler!")) errors.push(format!(
"Error code `{code}` exists, but is not emitted by the compiler!\n\
Please mark the code as no longer emitted by adding the following note to the top of the `EXXXX.md` file:\n\
`#### Note: this error code is no longer emitted by the compiler`"
));
} }
if found_codes.contains(code) && no_longer_emitted.contains(code) { if found_codes.contains(code) && no_longer_emitted.contains(code) {