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//! This pass just dumps MIR at a specified point.
use std::borrow::Cow;
use std::fs::File;
use std::io;
use crate::MirPass;
use rustc_middle::mir::write_mir_pretty;
use rustc_middle::mir::Body;
use rustc_middle::ty::TyCtxt;
use rustc_session::config::{OutputFilenames, OutputType};
pub struct Marker(pub &'static str);
impl<'tcx> MirPass<'tcx> for Marker {
fn name(&self) -> Cow<'_, str> {
Cow::Borrowed(self.0)
}
fn run_pass(&self, _tcx: TyCtxt<'tcx>, _body: &mut Body<'tcx>) {}
}
pub fn emit_mir(tcx: TyCtxt<'_>, outputs: &OutputFilenames) -> io::Result<()> {
let path = outputs.path(OutputType::Mir);
let mut f = io::BufWriter::new(File::create(&path)?);
write_mir_pretty(tcx, None, &mut f)?;
Ok(())
}
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