1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use cssparser::ast::{SyntaxError, SourceLocation};
pub struct ErrorLoggerIterator<I>(pub I);
impl<T, I: Iterator<Result<T, SyntaxError>>> Iterator<T> for ErrorLoggerIterator<I> {
fn next(&mut self) -> Option<T> {
let ErrorLoggerIterator(ref mut this) = *self;
loop {
match this.next() {
Some(Ok(v)) => return Some(v),
Some(Err(error)) => log_css_error(error.location,
format!("{:?}", error.reason).as_slice()),
None => return None,
}
}
}
}
/// Defaults to a no-op.
/// Set a `RUST_LOG=style::errors` environment variable
/// to log CSS parse errors to stderr.
pub fn log_css_error(location: SourceLocation, message: &str) {
// TODO eventually this will got into a "web console" or something.
info!("{:u}:{:u} {:s}", location.line, location.column, message)
}
|
