diff options
Diffstat (limited to 'third_party/rust/unic-langid-impl/src/errors.rs')
-rw-r--r-- | third_party/rust/unic-langid-impl/src/errors.rs | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/third_party/rust/unic-langid-impl/src/errors.rs b/third_party/rust/unic-langid-impl/src/errors.rs new file mode 100644 index 0000000000..ec054b1867 --- /dev/null +++ b/third_party/rust/unic-langid-impl/src/errors.rs @@ -0,0 +1,29 @@ +use super::parser::ParserError; +use std::error::Error; +use std::fmt::{self, Display}; + +/// Enum with errors that can be returned by LanguageIdentifier. +#[derive(Debug, PartialEq)] +pub enum LanguageIdentifierError { + /// An unknown error - currently covers all-but parser errors. + Unknown, + /// A parser error. + ParserError(ParserError), +} + +impl From<ParserError> for LanguageIdentifierError { + fn from(error: ParserError) -> LanguageIdentifierError { + LanguageIdentifierError::ParserError(error) + } +} + +impl Error for LanguageIdentifierError {} + +impl Display for LanguageIdentifierError { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + match self { + LanguageIdentifierError::Unknown => write!(f, "Unknown error"), + LanguageIdentifierError::ParserError(p) => write!(f, "Parser error: {}", p), + } + } +} |