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ljedrzljedrz
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hir: add and use hir_to_node_id in NodeCollector
1 parent 6536dbb commit 4a4e5f3

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2 files changed

+34
-32
lines changed

2 files changed

+34
-32
lines changed

‎src/librustc/hir/map/collector.rs

Lines changed: 27 additions & 25 deletions
Original file line numberDiff line numberDiff line change
@@ -40,6 +40,7 @@ pub(super) struct NodeCollector<'a, 'hir> {
4040

4141
dep_graph: &'a DepGraph,
4242
definitions: &'a definitions::Definitions,
43+
hir_to_node_id: &'a FxHashMap<HirId, NodeId>,
4344

4445
hcx: StableHashingContext<'a>,
4546

@@ -100,6 +101,7 @@ impl<'a, 'hir> NodeCollector<'a, 'hir> {
100101
krate: &'hir Crate,
101102
dep_graph: &'a DepGraph,
102103
definitions: &'a definitions::Definitions,
104+
hir_to_node_id: &'a FxHashMap<HirId, NodeId>,
103105
mut hcx: StableHashingContext<'a>)
104106
-> NodeCollector<'a, 'hir> {
105107
let root_mod_def_path_hash = definitions.def_path_hash(CRATE_DEF_INDEX);
@@ -155,6 +157,7 @@ impl<'a, 'hir> NodeCollector<'a, 'hir> {
155157
currently_in_body: false,
156158
dep_graph,
157159
definitions,
160+
hir_to_node_id,
158161
hcx,
159162
hir_body_nodes,
160163
};
@@ -228,8 +231,7 @@ impl<'a, 'hir> NodeCollector<'a, 'hir> {
228231
self.map[id.as_usize()] = Some(entry);
229232
}
230233

231-
// FIXME(ljedrz): devise a way to get rid of this NodeId
232-
fn insert(&mut self, span: Span, node_id: NodeId, hir_id: HirId, node: Node<'hir>) {
234+
fn insert(&mut self, span: Span, hir_id: HirId, node: Node<'hir>) {
233235
let entry = Entry {
234236
parent: self.parent_node,
235237
parent_hir: self.parent_hir,
@@ -241,6 +243,8 @@ impl<'a, 'hir> NodeCollector<'a, 'hir> {
241243
node,
242244
};
243245

246+
let node_id = self.hir_to_node_id[&hir_id];
247+
244248
// Make sure that the DepNode of some node coincides with the HirId
245249
// owner of that node.
246250
if cfg!(debug_assertions) {
@@ -361,13 +365,12 @@ impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir> {
361365
debug_assert_eq!(i.hir_id.owner,
362366
self.definitions.opt_def_index(i.id).unwrap());
363367
self.with_dep_node_owner(i.hir_id.owner, i, |this| {
364-
this.insert(i.span, i.id, i.hir_id, Node::Item(i));
368+
this.insert(i.span, i.hir_id, Node::Item(i));
365369
this.with_parent(i.id, i.hir_id, |this| {
366370
if let ItemKind::Struct(ref struct_def, _) = i.node {
367371
// If this is a tuple-like struct, register the constructor.
368372
if !struct_def.is_struct() {
369-
this.insert(i.span, struct_def.id(), struct_def.hir_id(),
370-
Node::StructCtor(struct_def));
373+
this.insert(i.span, struct_def.hir_id(), Node::StructCtor(struct_def));
371374
}
372375
}
373376
intravisit::walk_item(this, i);
@@ -376,24 +379,23 @@ impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir> {
376379
}
377380

378381
fn visit_foreign_item(&mut self, foreign_item: &'hir ForeignItem) {
379-
self.insert(foreign_item.span, foreign_item.id, foreign_item.hir_id,
380-
Node::ForeignItem(foreign_item));
382+
self.insert(foreign_item.span, foreign_item.hir_id, Node::ForeignItem(foreign_item));
381383

382384
self.with_parent(foreign_item.id, foreign_item.hir_id, |this| {
383385
intravisit::walk_foreign_item(this, foreign_item);
384386
});
385387
}
386388

387389
fn visit_generic_param(&mut self, param: &'hir GenericParam) {
388-
self.insert(param.span, param.id, param.hir_id, Node::GenericParam(param));
390+
self.insert(param.span, param.hir_id, Node::GenericParam(param));
389391
intravisit::walk_generic_param(self, param);
390392
}
391393

392394
fn visit_trait_item(&mut self, ti: &'hir TraitItem) {
393395
debug_assert_eq!(ti.hir_id.owner,
394396
self.definitions.opt_def_index(ti.id).unwrap());
395397
self.with_dep_node_owner(ti.hir_id.owner, ti, |this| {
396-
this.insert(ti.span, ti.id, ti.hir_id, Node::TraitItem(ti));
398+
this.insert(ti.span, ti.hir_id, Node::TraitItem(ti));
397399

398400
this.with_parent(ti.id, ti.hir_id, |this| {
399401
intravisit::walk_trait_item(this, ti);
@@ -405,7 +407,7 @@ impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir> {
405407
debug_assert_eq!(ii.hir_id.owner,
406408
self.definitions.opt_def_index(ii.id).unwrap());
407409
self.with_dep_node_owner(ii.hir_id.owner, ii, |this| {
408-
this.insert(ii.span, ii.id, ii.hir_id, Node::ImplItem(ii));
410+
this.insert(ii.span, ii.hir_id, Node::ImplItem(ii));
409411

410412
this.with_parent(ii.id, ii.hir_id, |this| {
411413
intravisit::walk_impl_item(this, ii);
@@ -419,55 +421,55 @@ impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir> {
419421
} else {
420422
Node::Pat(pat)
421423
};
422-
self.insert(pat.span, pat.id, pat.hir_id, node);
424+
self.insert(pat.span, pat.hir_id, node);
423425

424426
self.with_parent(pat.id, pat.hir_id, |this| {
425427
intravisit::walk_pat(this, pat);
426428
});
427429
}
428430

429431
fn visit_anon_const(&mut self, constant: &'hir AnonConst) {
430-
self.insert(DUMMY_SP, constant.id, constant.hir_id, Node::AnonConst(constant));
432+
self.insert(DUMMY_SP, constant.hir_id, Node::AnonConst(constant));
431433

432434
self.with_parent(constant.id, constant.hir_id, |this| {
433435
intravisit::walk_anon_const(this, constant);
434436
});
435437
}
436438

437439
fn visit_expr(&mut self, expr: &'hir Expr) {
438-
self.insert(expr.span, expr.id, expr.hir_id, Node::Expr(expr));
440+
self.insert(expr.span, expr.hir_id, Node::Expr(expr));
439441

440442
self.with_parent(expr.id, expr.hir_id, |this| {
441443
intravisit::walk_expr(this, expr);
442444
});
443445
}
444446

445447
fn visit_stmt(&mut self, stmt: &'hir Stmt) {
446-
self.insert(stmt.span, stmt.id, stmt.hir_id, Node::Stmt(stmt));
448+
self.insert(stmt.span, stmt.hir_id, Node::Stmt(stmt));
447449

448450
self.with_parent(stmt.id, stmt.hir_id, |this| {
449451
intravisit::walk_stmt(this, stmt);
450452
});
451453
}
452454

453455
fn visit_path_segment(&mut self, path_span: Span, path_segment: &'hir PathSegment) {
454-
if let Some(node_id) = path_segment.id {
456+
if path_segment.id.is_some() {
455457
let hir_id = path_segment.hir_id.unwrap();
456-
self.insert(path_span, node_id, hir_id, Node::PathSegment(path_segment));
458+
self.insert(path_span, hir_id, Node::PathSegment(path_segment));
457459
}
458460
intravisit::walk_path_segment(self, path_span, path_segment);
459461
}
460462

461463
fn visit_ty(&mut self, ty: &'hir Ty) {
462-
self.insert(ty.span, ty.id, ty.hir_id, Node::Ty(ty));
464+
self.insert(ty.span, ty.hir_id, Node::Ty(ty));
463465

464466
self.with_parent(ty.id, ty.hir_id, |this| {
465467
intravisit::walk_ty(this, ty);
466468
});
467469
}
468470

469471
fn visit_trait_ref(&mut self, tr: &'hir TraitRef) {
470-
self.insert(tr.path.span, tr.ref_id, tr.hir_ref_id, Node::TraitRef(tr));
472+
self.insert(tr.path.span, tr.hir_ref_id, Node::TraitRef(tr));
471473

472474
self.with_parent(tr.ref_id, tr.hir_ref_id, |this| {
473475
intravisit::walk_trait_ref(this, tr);
@@ -481,21 +483,21 @@ impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir> {
481483
}
482484

483485
fn visit_block(&mut self, block: &'hir Block) {
484-
self.insert(block.span, block.id, block.hir_id, Node::Block(block));
486+
self.insert(block.span, block.hir_id, Node::Block(block));
485487
self.with_parent(block.id, block.hir_id, |this| {
486488
intravisit::walk_block(this, block);
487489
});
488490
}
489491

490492
fn visit_local(&mut self, l: &'hir Local) {
491-
self.insert(l.span, l.id, l.hir_id, Node::Local(l));
493+
self.insert(l.span, l.hir_id, Node::Local(l));
492494
self.with_parent(l.id, l.hir_id, |this| {
493495
intravisit::walk_local(this, l)
494496
})
495497
}
496498

497499
fn visit_lifetime(&mut self, lifetime: &'hir Lifetime) {
498-
self.insert(lifetime.span, lifetime.id, lifetime.hir_id, Node::Lifetime(lifetime));
500+
self.insert(lifetime.span, lifetime.hir_id, Node::Lifetime(lifetime));
499501
}
500502

501503
fn visit_vis(&mut self, visibility: &'hir Visibility) {
@@ -504,7 +506,7 @@ impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir> {
504506
VisibilityKind::Crate(_) |
505507
VisibilityKind::Inherited => {}
506508
VisibilityKind::Restricted { id, hir_id, .. } => {
507-
self.insert(visibility.span, id, hir_id, Node::Visibility(visibility));
509+
self.insert(visibility.span, hir_id, Node::Visibility(visibility));
508510
self.with_parent(id, hir_id, |this| {
509511
intravisit::walk_vis(this, visibility);
510512
});
@@ -516,19 +518,19 @@ impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir> {
516518
let def_index = self.definitions.opt_def_index(macro_def.id).unwrap();
517519

518520
self.with_dep_node_owner(def_index, macro_def, |this| {
519-
this.insert(macro_def.span, macro_def.id, macro_def.hir_id, Node::MacroDef(macro_def));
521+
this.insert(macro_def.span, macro_def.hir_id, Node::MacroDef(macro_def));
520522
});
521523
}
522524

523525
fn visit_variant(&mut self, v: &'hir Variant, g: &'hir Generics, item_id: HirId) {
524-
self.insert(v.span, v.node.data.id(), v.node.data.hir_id(), Node::Variant(v));
526+
self.insert(v.span, v.node.data.hir_id(), Node::Variant(v));
525527
self.with_parent(v.node.data.id(), v.node.data.hir_id(), |this| {
526528
intravisit::walk_variant(this, v, g, item_id);
527529
});
528530
}
529531

530532
fn visit_struct_field(&mut self, field: &'hir StructField) {
531-
self.insert(field.span, field.id, field.hir_id, Node::Field(field));
533+
self.insert(field.span, field.hir_id, Node::Field(field));
532534
self.with_parent(field.id, field.hir_id, |this| {
533535
intravisit::walk_struct_field(this, field);
534536
});

‎src/librustc/hir/map/mod.rs

Lines changed: 7 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -11,7 +11,6 @@ use crate::middle::cstore::CrateStoreDyn;
1111

1212
use rustc_target::spec::abi::Abi;
1313
use rustc_data_structures::svh::Svh;
14-
use rustc_data_structures::sync::join;
1514
use syntax::ast::{self, Name, NodeId, CRATE_NODE_ID};
1615
use syntax::source_map::Spanned;
1716
use syntax::ext::base::MacroKind;
@@ -1242,13 +1241,18 @@ pub fn map_crate<'hir>(sess: &crate::session::Session,
12421241
forest: &'hir Forest,
12431242
definitions: &'hir Definitions)
12441243
-> Map<'hir> {
1245-
let ((map, crate_hash), hir_to_node_id) = join(|| {
1244+
// Build the reverse mapping of `node_to_hir_id`.
1245+
let hir_to_node_id = definitions.node_to_hir_id.iter_enumerated()
1246+
.map(|(node_id, &hir_id)| (hir_id, node_id)).collect();
1247+
1248+
let (map, crate_hash) = {
12461249
let hcx = crate::ich::StableHashingContext::new(sess, &forest.krate, definitions, cstore);
12471250

12481251
let mut collector = NodeCollector::root(sess,
12491252
&forest.krate,
12501253
&forest.dep_graph,
12511254
&definitions,
1255+
&hir_to_node_id,
12521256
hcx);
12531257
intravisit::walk_crate(&mut collector, &forest.krate);
12541258

@@ -1259,11 +1263,7 @@ pub fn map_crate<'hir>(sess: &crate::session::Session,
12591263
cstore,
12601264
cmdline_args
12611265
)
1262-
}, || {
1263-
// Build the reverse mapping of `node_to_hir_id`.
1264-
definitions.node_to_hir_id.iter_enumerated()
1265-
.map(|(node_id, &hir_id)| (hir_id, node_id)).collect()
1266-
});
1266+
};
12671267

12681268
if log_enabled!(::log::Level::Debug) {
12691269
// This only makes sense for ordered stores; note the

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