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Fix out of bounds access in parse_snippet #165
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phansch
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oli-obk
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Mar 25, 2019
src/lib.rs
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| // If we get a DiagnosticSpanLine where highlight_end > text.len(), we prevent an 'out of | ||
| // bounds' access by using text.len() - 1 instead. | ||
| let last_tail_index = if (last.highlight_end - 1) > last.text.len() { |
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let last_tail_index = last.highlight_end.min(last.text.len()) - 1;should do the same thing.
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Do we actually want to validate and fix this? We can also do (I don't mind either way) |
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This particular diagnostic from rustc doesn't provide a suggestion anyway and I'm not sure if there are other diagnostics that provide a suggestion and would cause this crash :/ |
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I think truncating is fine. We can create a diagnostics json validator later which does a bunch of sanity checks. We can then use that to improve the output generated by rustc. |
oli-obk
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Mar 25, 2019
killercup
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Mar 26, 2019
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Fixes #164