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use super::scope::Scope;
use super::WriteValue;
use std::borrow::Borrow;
use std::fmt;
use fluent_syntax::ast;
use crate::memoizer::MemoizerKind;
use crate::resolver::{ResolveValue, ResolverError};
use crate::resource::FluentResource;
use crate::types::FluentValue;
impl<'p> WriteValue for ast::Expression<&'p str> {
fn write<'scope, 'errors, W, R, M>(
&'scope self,
w: &mut W,
scope: &mut Scope<'scope, 'errors, R, M>,
) -> fmt::Result
where
W: fmt::Write,
R: Borrow<FluentResource>,
M: MemoizerKind,
{
match self {
Self::Inline(exp) => exp.write(w, scope),
Self::Select { selector, variants } => {
let selector = selector.resolve(scope);
match selector {
FluentValue::String(_) | FluentValue::Number(_) => {
for variant in variants {
let key = match variant.key {
ast::VariantKey::Identifier { name } => name.into(),
ast::VariantKey::NumberLiteral { value } => {
FluentValue::try_number(value)
}
};
if key.matches(&selector, scope) {
return variant.value.write(w, scope);
}
}
}
_ => {}
}
for variant in variants {
if variant.default {
return variant.value.write(w, scope);
}
}
scope.add_error(ResolverError::MissingDefault);
Ok(())
}
}
}
fn write_error<W>(&self, w: &mut W) -> fmt::Result
where
W: fmt::Write,
{
match self {
Self::Inline(exp) => exp.write_error(w),
Self::Select { .. } => unreachable!(),
}
}
}
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