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