servo/components/script_layout_interface/reporter.rs

/* 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::SourceLocation;
use ipc_channel::ipc::IpcSender;
use log;
use msg::constellation_msg::PipelineId;
use script_traits::ConstellationControlMsg;
use servo_url::ServoUrl;
use std::sync::{Mutex, Arc};
use style::error_reporting::{ParseErrorReporter, ContextualParseError};

#[derive(Clone, MallocSizeOf)]
pub struct CSSErrorReporter {
    pub pipelineid: PipelineId,
    // Arc+Mutex combo is necessary to make this struct Sync,
    // which is necessary to fulfill the bounds required by the
    // uses of the ParseErrorReporter trait.
    #[ignore_malloc_size_of = "Arc is defined in libstd"]
    pub script_chan: Arc<Mutex<IpcSender<ConstellationControlMsg>>>,
}

impl ParseErrorReporter for CSSErrorReporter {
    fn report_error(&self, url: &ServoUrl, location: SourceLocation, error: ContextualParseError) {
        if log_enabled!(log::Level::Info) {
            info!(
                "Url:\t{}\n{}:{} {}",
                url.as_str(),
                location.line,
                location.column,
                error
            )
        }

        //TODO: report a real filename
        let _ = self
            .script_chan
            .lock()
            .unwrap()
            .send(ConstellationControlMsg::ReportCSSError(
                self.pipelineid,
                "".to_owned(),
                location.line,
                location.column,
                error.to_string(),
            ));
    }
}