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Deduplicate error messages #62022

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oli-obk opened this issue Jun 21, 2019 · 5 comments
Closed

Deduplicate error messages #62022

oli-obk opened this issue Jun 21, 2019 · 5 comments
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A-const-eval Area: Constant evaluation (MIR interpretation) E-easy Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.

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@oli-obk
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oli-obk commented Jun 21, 2019

cc @RalfJung

let err = error_to_const_error(&ecx, error);
match err.struct_error(ecx.tcx, "it is undefined behavior to use this value") {
Ok(mut diag) => {
diag.note("The rules on what exactly is undefined behavior aren't clear, \
so this check might be overzealous. Please open an issue on the rust compiler \
repository if you believe it should not be considered undefined behavior",
);
diag.emit();
ErrorHandled::Reported
}
Err(err) => err,
}

and

let err = crate::const_eval::error_to_const_error(&ecx, error);
match err.struct_error(ecx.tcx, "it is undefined behavior to use this value") {
Ok(mut diag) => {
diag.note("The rules on what exactly is undefined behavior aren't clear, \
so this check might be overzealous. Please open an issue on the rust \
compiler repository if you believe it should not be considered \
undefined behavior",
);
diag.emit();
}
Err(ErrorHandled::TooGeneric) |
Err(ErrorHandled::Reported) => {},
}

could be deduplicated by creating a function in const_eval.rs and calling it from both sites

This issue has been assigned to @chansuke via this comment.

@oli-obk oli-obk added E-easy Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue. A-const-eval Area: Constant evaluation (MIR interpretation) labels Jun 21, 2019
@chansuke
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I'd like to work on this issue.

@oli-obk
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oli-obk commented Jun 21, 2019

Great! It's all yours.

@chansuke
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@rustbot claim

@rustbot rustbot self-assigned this Jun 23, 2019
@saleemjaffer
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@chansuke Are you still working on this? If not I can pick it up :)

Centril added a commit to Centril/rust that referenced this issue Aug 13, 2019
…ackmdavis

Deduplicate error messages in `librsctc_mir`

Deduplicated the error messages in `librustc_mir`. rust-lang#62022
Centril added a commit to Centril/rust that referenced this issue Aug 13, 2019
…ackmdavis

Deduplicate error messages in `librsctc_mir`

Deduplicated the error messages in `librustc_mir`. rust-lang#62022
Mark-Simulacrum added a commit to Mark-Simulacrum/rust that referenced this issue Aug 14, 2019
…ackmdavis

Deduplicate error messages in `librsctc_mir`

Deduplicated the error messages in `librustc_mir`. rust-lang#62022
Centril added a commit to Centril/rust that referenced this issue Aug 14, 2019
…ackmdavis

Deduplicate error messages in `librsctc_mir`

Deduplicated the error messages in `librustc_mir`. rust-lang#62022
Centril added a commit to Centril/rust that referenced this issue Aug 14, 2019
…ackmdavis

Deduplicate error messages in `librsctc_mir`

Deduplicated the error messages in `librustc_mir`. rust-lang#62022
@wesleywiser
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This was closed in #62760

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Labels
A-const-eval Area: Constant evaluation (MIR interpretation) E-easy Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.
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