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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! This pass just dumps MIR at a specified point.
use std::borrow::Cow;
use std::fmt;
use std::fs::File;
use std::io;
use rustc::mir::Mir;
use rustc::mir::transform::{MirPass, MirPassIndex, MirSource, MirSuite, PassHook};
use rustc::session::config::{OutputFilenames, OutputType};
use rustc::ty::TyCtxt;
use util as mir_util;
pub struct Marker(pub &'static str);
impl MirPass for Marker {
fn name<'a>(&'a self) -> Cow<'a, str> {
Cow::Borrowed(self.0)
}
fn run_pass<'a, 'tcx>(&self,
_tcx: TyCtxt<'a, 'tcx, 'tcx>,
_source: MirSource,
_mir: &mut Mir<'tcx>)
{
}
}
pub struct Disambiguator {
is_after: bool
}
impl fmt::Display for Disambiguator {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
let title = if self.is_after { "after" } else { "before" };
write!(formatter, "{}", title)
}
}
pub struct DumpMir;
impl PassHook for DumpMir {
fn on_mir_pass<'a, 'tcx: 'a>(&self,
tcx: TyCtxt<'a, 'tcx, 'tcx>,
suite: MirSuite,
pass_num: MirPassIndex,
pass_name: &str,
source: MirSource,
mir: &Mir<'tcx>,
is_after: bool)
{
if mir_util::dump_enabled(tcx, pass_name, source) {
mir_util::dump_mir(tcx,
Some((suite, pass_num)),
pass_name,
&Disambiguator { is_after },
source,
mir);
}
}
}
pub fn emit_mir<'a, 'tcx>(
tcx: TyCtxt<'a, 'tcx, 'tcx>,
outputs: &OutputFilenames)
-> io::Result<()>
{
let path = outputs.path(OutputType::Mir);
let mut f = File::create(&path)?;
mir_util::write_mir_pretty(tcx, None, &mut f)?;
Ok(())
}
|
