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
33
34
35
36
37
38
39
40
41
42
43
44
45
46
use rustc::ty::TyCtxt;
use rustc::mir::*;
use rustc::mir::visit::MutVisitor;
use transform::{MirPass, MirSource};
pub struct NoLandingPads;
impl MirPass for NoLandingPads {
fn run_pass<'a, 'tcx>(&self,
tcx: TyCtxt<'a, 'tcx, 'tcx>,
_: MirSource,
mir: &mut Mir<'tcx>) {
no_landing_pads(tcx, mir)
}
}
pub fn no_landing_pads<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>, mir: &mut Mir<'tcx>) {
if tcx.sess.no_landing_pads() {
NoLandingPads.visit_mir(mir);
}
}
impl<'tcx> MutVisitor<'tcx> for NoLandingPads {
fn visit_terminator(&mut self,
bb: BasicBlock,
terminator: &mut Terminator<'tcx>,
location: Location) {
if let Some(unwind) = terminator.kind.unwind_mut() {
unwind.take();
}
self.super_terminator(bb, terminator, location);
}
}