441dc3640a
Found with https://github.com/est31/warnalyzer. Dubious changes: - Is anyone else using rustc_apfloat? I feel weird completely deleting x87 support. - Maybe some of the dead code in rustc_data_structures, in case someone wants to use it in the future? - Don't change rustc_serialize I plan to scrap most of the json module in the near future (see https://github.com/rust-lang/compiler-team/issues/418) and fixing the tests needed more work than I expected. TODO: check if any of the comments on the deleted code should be kept.
26 lines
818 B
Rust
26 lines
818 B
Rust
use rustc_data_structures::fx::FxHashMap;
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#[derive(Debug)]
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pub struct InvalidErrorCode;
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#[derive(Clone)]
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pub struct Registry {
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long_descriptions: FxHashMap<&'static str, Option<&'static str>>,
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}
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impl Registry {
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pub fn new(long_descriptions: &[(&'static str, Option<&'static str>)]) -> Registry {
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Registry { long_descriptions: long_descriptions.iter().copied().collect() }
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}
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/// Returns `InvalidErrorCode` if the code requested does not exist in the
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/// registry. Otherwise, returns an `Option` where `None` means the error
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/// code is valid but has no extended information.
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pub fn try_find_description(
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&self,
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code: &str,
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) -> Result<Option<&'static str>, InvalidErrorCode> {
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self.long_descriptions.get(code).copied().ok_or(InvalidErrorCode)
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}
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}
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