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use crate::resolver::ResolverError;
use fluent_syntax::parser::ParserError;
use std::error::Error;
#[derive(Debug, PartialEq, Clone)]
pub enum EntryKind {
Message,
Term,
Function,
}
impl std::fmt::Display for EntryKind {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Self::Message => f.write_str("message"),
Self::Term => f.write_str("term"),
Self::Function => f.write_str("function"),
}
}
}
/// Core error type for Fluent runtime system.
///
/// It contains three main types of errors that may come up
/// during runtime use of the fluent-bundle crate.
#[derive(Debug, PartialEq, Clone)]
pub enum FluentError {
/// An error which occurs when
/// [`FluentBundle::add_resource`](crate::bundle::FluentBundle::add_resource)
/// adds entries that are already registered in a given [`FluentBundle`](crate::FluentBundle).
///
/// # Example
///
/// ```
/// use fluent_bundle::{FluentBundle, FluentResource};
/// use unic_langid::langid;
///
/// let ftl_string = String::from("intro = Welcome, { $name }.");
/// let res1 = FluentResource::try_new(ftl_string)
/// .expect("Could not parse an FTL string.");
///
/// let ftl_string = String::from("intro = Hi, { $name }.");
/// let res2 = FluentResource::try_new(ftl_string)
/// .expect("Could not parse an FTL string.");
///
/// let langid_en = langid!("en-US");
/// let mut bundle = FluentBundle::new(vec![langid_en]);
///
/// bundle.add_resource(&res1)
/// .expect("Failed to add FTL resources to the bundle.");
///
/// assert!(bundle.add_resource(&res2).is_err());
/// ```
Overriding {
kind: EntryKind,
id: String,
},
ParserError(ParserError),
ResolverError(ResolverError),
}
impl std::fmt::Display for FluentError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Self::Overriding { kind, id } => {
write!(f, "Attempt to override an existing {}: \"{}\".", kind, id)
}
Self::ParserError(err) => write!(f, "Parser error: {}", err),
Self::ResolverError(err) => write!(f, "Resolver error: {}", err),
}
}
}
impl Error for FluentError {}
impl From<ResolverError> for FluentError {
fn from(error: ResolverError) -> Self {
Self::ResolverError(error)
}
}
impl From<ParserError> for FluentError {
fn from(error: ParserError) -> Self {
Self::ParserError(error)
}
}