80ed505c41
These were introduced since I last fixed most of these occurences. (clippy::clone_on_copy, clippy::single_char_pattern)
32 lines
1.1 KiB
Rust
32 lines
1.1 KiB
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().cloned().collect() }
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}
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/// This will panic if an invalid error code is passed in
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pub fn find_description(&self, code: &str) -> Option<&'static str> {
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self.try_find_description(code).unwrap()
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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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if !self.long_descriptions.contains_key(code) {
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return Err(InvalidErrorCode);
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}
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Ok(*self.long_descriptions.get(code).unwrap())
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}
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}
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