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Include file name in IO errors (especially FileNotFound). #10404

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orenbenkiki opened this issue Nov 10, 2013 · 5 comments
Closed

Include file name in IO errors (especially FileNotFound). #10404

orenbenkiki opened this issue Nov 10, 2013 · 5 comments

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@orenbenkiki
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Here is an error message I just got (using the latest head version):

task '... failed at 'Unhandled condition: io_error: rt::io::IoError{kind: OtherIoError, desc: "no such file or directory", detail: None}', .../rust/src/libstd/condition.rs:131

It would be much easier to debug if the io error included the name of the offending file.
@itdaniher
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I agree with the sentiment - working on tracking down the codepath that emits that error. Pain in the neck to debug!

@cadencemarseille
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Probably depends on #10863

@pnkfelix
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it would be great to fix this.

I skimmed over the code in std::io::mod briefly, and while the IoErrorKind enum seems easy enough to modify, the hard part is probably to extract the necessary info e.g. in rustuv::uv_error_to_io_error

cc @alexcrichton

@aturon
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aturon commented Jun 2, 2014

cc me
cc @wycats

@alexcrichton
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Closed by #14823

flip1995 pushed a commit to flip1995/rust that referenced this issue Nov 2, 2023
@bors
Auto merge of rust-lang#10404 - dnbln:feat/unused_enumerate_index, r=…
919f698 
…blyxyas

Add `unused_enumerate_index` lint

A lint for unused `.enumerate()` indexes (`for (_, x) in iter.enumerate()`).

I wasn't able to find a `rustc_span::sym::Enumerate`, so the code for checking that it's the correct `Enumerate` iterator is a bit weird.

---

changelog: New lint: [`unused_enumerate_index`]: A new lint for checking that the indexes from `.enumerate()` calls are used.
[rust-lang#10404](rust-lang/rust-clippy#10404)
<!-- changelog_checked -->
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6 participants
@itdaniher @alexcrichton @orenbenkiki @pnkfelix @aturon @cadencemarseille