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// This file is part of ICU4X. For terms of use, please see the file
// called LICENSE at the top level of the ICU4X source tree
// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
use crate::fields;
use displaydoc::Display;
/// These strings follow the recommendations for the serde::de::Unexpected::Other type.
/// <https://docs.serde.rs/serde/de/enum.Unexpected.html#variant.Other>
///
/// Serde will generate an error such as:
/// "invalid value: unclosed literal in pattern, expected a valid UTS 35 pattern string at line 1 column 12"
#[derive(Display, Debug, Copy, Clone, PartialEq)]
#[allow(missing_docs)]
#[non_exhaustive]
pub enum SkeletonError {
#[displaydoc("field too long in skeleton")]
InvalidFieldLength,
#[displaydoc("duplicate field in skeleton")]
DuplicateField,
#[displaydoc("symbol unknown {0} in skeleton")]
SymbolUnknown(char),
#[displaydoc("symbol invalid {0} in skeleton")]
SymbolInvalid(u8),
#[displaydoc("symbol unimplemented {0} in skeleton")]
SymbolUnimplemented(char),
#[displaydoc("unimplemented field {0} in skeleton")]
UnimplementedField(char),
#[displaydoc("skeleton has a variant subtag")]
SkeletonHasVariant,
#[displaydoc("{0}")]
Fields(fields::Error),
}
#[cfg(feature = "std")]
impl std::error::Error for SkeletonError {}
impl From<fields::Error> for SkeletonError {
fn from(e: fields::Error) -> Self {
SkeletonError::Fields(e)
}
}
impl From<fields::LengthError> for SkeletonError {
fn from(_: fields::LengthError) -> Self {
Self::InvalidFieldLength
}
}
impl From<fields::SymbolError> for SkeletonError {
fn from(symbol_error: fields::SymbolError) -> Self {
match symbol_error {
fields::SymbolError::Invalid(ch) => match ch {
b'-' => Self::SkeletonHasVariant,
_ => Self::SymbolInvalid(ch),
},
fields::SymbolError::InvalidIndex(_) => unimplemented!(),
fields::SymbolError::Unknown(ch) => {
// NOTE: If you remove a symbol due to it now being supported,
// make sure to regenerate data: cargo make bakeddata components/datetime.
match ch {
// TODO(#487) - Flexible day periods
'B'
// TODO(#501) - Quarters
| 'Q' | 'q'
// Extended year
| 'u'
// TODO(#5643) - Weeks
| 'Y' | 'w' | 'W'
// Modified Julian Day
| 'g'
=> Self::SymbolUnimplemented(ch),
_ => Self::SymbolUnknown(ch),
}
}
}
}
}