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use quote::ToTokens;
use std::fmt::Display;
use syn::{Error, Result};
pub(crate) struct Errors {
errors: Vec<Error>,
}
impl Errors {
pub(crate) fn new() -> Self {
Errors { errors: Vec::new() }
}
pub(crate) fn error(&mut self, sp: impl ToTokens, msg: impl Display) {
self.errors.push(Error::new_spanned(sp, msg));
}
pub(crate) fn push(&mut self, error: Error) {
self.errors.push(error);
}
pub(crate) fn propagate(&mut self) -> Result<()> {
let mut iter = self.errors.drain(..);
let mut all_errors = match iter.next() {
Some(err) => err,
None => return Ok(()),
};
for err in iter {
all_errors.combine(err);
}
Err(all_errors)
}
}
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