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use std::io;
use std::io::Write;
use backend::*;
use output_log::*;
pub struct PipeOutput {
error_handler: Box <Fn (io::Error) + Send>,
}
impl PipeOutput {
pub fn new (
error_handler: Box <Fn (io::Error) + Send>,
) -> PipeOutput {
PipeOutput {
error_handler: error_handler,
}
}
}
impl Backend for PipeOutput {
fn update (
& mut self,
logs: & [OutputLogInternal],
) {
for log in logs {
if log.state () != OutputLogState::Message {
break;
}
write! (
io::stderr (),
"{}\n",
log.message (),
).unwrap_or_else (
|error|
(self.error_handler) (
error)
);
}
}
}