bjoernager/rust
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add -Zunpretty=hir-tree

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This uses the debug impls to dump the raw HIR. Particularly useful when
learning how the compiler works.
This commit is contained in:
Niko Matsakis 2017-11-02 08:58:13 -04:00
parent a7d98c7837
commit 1058c89c69
1 changed files with 42 additions and 0 deletions
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42
src/librustc_driver/pretty.rs
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@ -77,6 +77,7 @@ pub enum PpFlowGraphMode {
pub enum PpMode {
PpmSource(PpSourceMode),
PpmHir(PpSourceMode),
PpmHirTree(PpSourceMode),
PpmFlowGraph(PpFlowGraphMode),
PpmMir,
PpmMirCFG,
@ -93,6 +94,7 @@ impl PpMode {
PpmSource(PpmExpandedIdentified) |
PpmSource(PpmExpandedHygiene) |
PpmHir(_) |
PpmHirTree(_) |
PpmMir |
PpmMirCFG |
PpmFlowGraph(_) => true,
@ -125,6 +127,7 @@ pub fn parse_pretty(sess: &Session,
("hir", true) => PpmHir(PpmNormal),
("hir,identified", true) => PpmHir(PpmIdentified),
("hir,typed", true) => PpmHir(PpmTyped),
("hir-tree", true) => PpmHirTree(PpmNormal),
("mir", true) => PpmMir,
("mir-cfg", true) => PpmMirCFG,
("flowgraph", true) => PpmFlowGraph(PpFlowGraphMode::Default),
@ -969,6 +972,23 @@ pub fn print_after_hir_lowering<'tcx, 'a: 'tcx>(sess: &'a Session,
})
}
(PpmHirTree(s), None) => {
let out: &mut Write = &mut out;
s.call_with_pp_support_hir(sess,
cstore,
hir_map,
analysis,
resolutions,
arena,
arenas,
output_filenames,
crate_name,
move |_annotation, krate| {
debug!("pretty printing source code {:?}", s);
write!(out, "{:#?}", krate)
})
}
(PpmHir(s), Some(uii)) => {
let out: &mut Write = &mut out;
s.call_with_pp_support_hir(sess,
@ -1003,6 +1023,28 @@ pub fn print_after_hir_lowering<'tcx, 'a: 'tcx>(sess: &'a Session,
pp_state.s.eof()
})
}
(PpmHirTree(s), Some(uii)) => {
let out: &mut Write = &mut out;
s.call_with_pp_support_hir(sess,
cstore,
hir_map,
analysis,
resolutions,
arena,
arenas,
output_filenames,
crate_name,
move |_annotation, _krate| {
debug!("pretty printing source code {:?}", s);
for node_id in uii.all_matching_node_ids(hir_map) {
let node = hir_map.get(node_id);
write!(out, "{:#?}", node)?;
}
Ok(())
})
}
_ => unreachable!(),
}
.unwrap();