Rollup merge of #96989 - cjgillot:defpath-use, r=davidtwco
Be more precise than DefPathData::Misc. This variant was used for two unrelated things. Let's make this cleaner.
This commit is contained in:
commit
f2100daf32
11 changed files with 116 additions and 41 deletions
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@ -261,14 +261,16 @@ pub enum DefPathData {
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// they are treated specially by the `def_path` function.
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/// The crate root (marker).
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CrateRoot,
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// Catch-all for random `DefId` things like `DUMMY_NODE_ID`.
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Misc,
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// Different kinds of items and item-like things:
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/// An impl.
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Impl,
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/// An `extern` block.
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ForeignMod,
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/// A `use` item.
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Use,
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/// A global asm item.
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GlobalAsm,
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/// Something in the type namespace.
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TypeNs(Symbol),
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/// Something in the value namespace.
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@ -443,9 +445,8 @@ impl DefPathData {
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match *self {
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TypeNs(name) | ValueNs(name) | MacroNs(name) | LifetimeNs(name) => Some(name),
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Impl | ForeignMod | CrateRoot | Misc | ClosureExpr | Ctor | AnonConst | ImplTrait => {
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None
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}
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Impl | ForeignMod | CrateRoot | Use | GlobalAsm | ClosureExpr | Ctor | AnonConst
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| ImplTrait => None,
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}
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}
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@ -459,7 +460,8 @@ impl DefPathData {
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CrateRoot => DefPathDataName::Anon { namespace: kw::Crate },
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Impl => DefPathDataName::Anon { namespace: kw::Impl },
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ForeignMod => DefPathDataName::Anon { namespace: kw::Extern },
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Misc => DefPathDataName::Anon { namespace: sym::misc },
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Use => DefPathDataName::Anon { namespace: kw::Use },
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GlobalAsm => DefPathDataName::Anon { namespace: sym::global_asm },
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ClosureExpr => DefPathDataName::Anon { namespace: sym::closure },
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Ctor => DefPathDataName::Anon { namespace: sym::constructor },
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AnonConst => DefPathDataName::Anon { namespace: sym::constant },
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@ -1994,6 +1994,7 @@ impl<'tcx> TyCtxt<'tcx> {
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.filter(|item| item.kind == AssocKind::Fn && item.defaultness.has_value())
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}
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/// Look up the name of a definition across crates. This does not look at HIR.
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fn opt_item_name(self, def_id: DefId) -> Option<Symbol> {
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if let Some(cnum) = def_id.as_crate_root() {
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Some(self.crate_name(cnum))
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@ -2014,16 +2015,11 @@ impl<'tcx> TyCtxt<'tcx> {
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/// Look up the name of a definition across crates. This does not look at HIR.
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///
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/// When possible, this function should be used for cross-crate lookups over
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/// [`opt_item_name`] to avoid invalidating the incremental cache. If you
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/// need to handle items without a name, or HIR items that will not be
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/// serialized cross-crate, or if you need the span of the item, use
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/// This method will ICE if the corresponding item does not have a name. In these cases, use
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/// [`opt_item_name`] instead.
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///
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/// [`opt_item_name`]: Self::opt_item_name
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pub fn item_name(self, id: DefId) -> Symbol {
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// Look at cross-crate items first to avoid invalidating the incremental cache
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// unless we have to.
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self.opt_item_name(id).unwrap_or_else(|| {
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bug!("item_name: no name for {:?}", self.def_path(id));
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})
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@ -109,7 +109,7 @@ impl<'a, 'b> visit::Visitor<'a> for DefCollector<'a, 'b> {
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visit::walk_item(self, i);
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return self.visit_macro_invoc(i.id);
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}
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ItemKind::GlobalAsm(..) => DefPathData::Misc,
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ItemKind::GlobalAsm(..) => DefPathData::GlobalAsm,
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ItemKind::Use(..) => {
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return visit::walk_item(self, i);
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}
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@ -160,11 +160,11 @@ impl<'a, 'b> visit::Visitor<'a> for DefCollector<'a, 'b> {
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}
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fn visit_use_tree(&mut self, use_tree: &'a UseTree, id: NodeId, _nested: bool) {
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self.create_def(id, DefPathData::Misc, use_tree.span);
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self.create_def(id, DefPathData::Use, use_tree.span);
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match use_tree.kind {
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UseTreeKind::Simple(_, id1, id2) => {
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self.create_def(id1, DefPathData::Misc, use_tree.prefix.span);
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self.create_def(id2, DefPathData::Misc, use_tree.prefix.span);
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self.create_def(id1, DefPathData::Use, use_tree.prefix.span);
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self.create_def(id2, DefPathData::Use, use_tree.prefix.span);
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}
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UseTreeKind::Glob => (),
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UseTreeKind::Nested(..) => {}
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@ -788,7 +788,8 @@ impl<'tcx> Printer<'tcx> for &mut SymbolMangler<'tcx> {
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// These should never show up as `path_append` arguments.
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DefPathData::CrateRoot
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| DefPathData::Misc
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| DefPathData::Use
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| DefPathData::GlobalAsm
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| DefPathData::Impl
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| DefPathData::MacroNs(_)
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| DefPathData::LifetimeNs(_) => {
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@ -4,22 +4,55 @@
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fn g() -> () {
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let mut _0: (); // return place in scope 0 at $DIR/cycle.rs:11:8: 11:8
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let _1: (); // in scope 0 at $DIR/cycle.rs:12:5: 12:12
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+ let mut _2: fn() {main}; // in scope 0 at $DIR/cycle.rs:12:5: 12:12
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+ let mut _5: (); // in scope 0 at $DIR/cycle.rs:6:5: 6:8
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+ scope 1 (inlined f::<fn() {main}>) { // at $DIR/cycle.rs:12:5: 12:12
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+ debug g => _2; // in scope 1 at $DIR/cycle.rs:5:6: 5:7
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+ let _3: (); // in scope 1 at $DIR/cycle.rs:6:5: 6:8
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+ let mut _4: &fn() {main}; // in scope 1 at $DIR/cycle.rs:6:5: 6:6
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+ scope 2 (inlined <fn() {main} as Fn<()>>::call - shim(fn() {main})) { // at $DIR/cycle.rs:6:5: 6:8
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+ }
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+ }
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bb0: {
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StorageLive(_1); // scope 0 at $DIR/cycle.rs:12:5: 12:12
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_1 = f::<fn() {main}>(main) -> bb1; // scope 0 at $DIR/cycle.rs:12:5: 12:12
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// mir::Constant
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// + span: $DIR/cycle.rs:12:5: 12:6
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// + literal: Const { ty: fn(fn() {main}) {f::<fn() {main}>}, val: Value(Scalar(<ZST>)) }
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- _1 = f::<fn() {main}>(main) -> bb1; // scope 0 at $DIR/cycle.rs:12:5: 12:12
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+ StorageLive(_2); // scope 0 at $DIR/cycle.rs:12:5: 12:12
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+ _2 = main; // scope 0 at $DIR/cycle.rs:12:5: 12:12
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// mir::Constant
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- // + span: $DIR/cycle.rs:12:5: 12:6
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- // + literal: Const { ty: fn(fn() {main}) {f::<fn() {main}>}, val: Value(Scalar(<ZST>)) }
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- // mir::Constant
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// + span: $DIR/cycle.rs:12:7: 12:11
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// + literal: Const { ty: fn() {main}, val: Value(Scalar(<ZST>)) }
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+ StorageLive(_3); // scope 1 at $DIR/cycle.rs:6:5: 6:8
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+ StorageLive(_4); // scope 1 at $DIR/cycle.rs:6:5: 6:6
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+ _4 = &_2; // scope 1 at $DIR/cycle.rs:6:5: 6:6
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+ StorageLive(_5); // scope 1 at $DIR/cycle.rs:6:5: 6:8
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+ _5 = const (); // scope 1 at $DIR/cycle.rs:6:5: 6:8
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+ _3 = move (*_4)() -> [return: bb4, unwind: bb2]; // scope 2 at $SRC_DIR/core/src/ops/function.rs:LL:COL
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}
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bb1: {
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+ StorageDead(_2); // scope 0 at $DIR/cycle.rs:12:5: 12:12
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StorageDead(_1); // scope 0 at $DIR/cycle.rs:12:12: 12:13
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_0 = const (); // scope 0 at $DIR/cycle.rs:11:8: 13:2
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return; // scope 0 at $DIR/cycle.rs:13:2: 13:2
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+ }
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+
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+ bb2 (cleanup): {
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+ drop(_2) -> bb3; // scope 1 at $DIR/cycle.rs:7:1: 7:2
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+ }
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+
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+ bb3 (cleanup): {
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+ resume; // scope 1 at $DIR/cycle.rs:5:1: 7:2
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+ }
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+
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+ bb4: {
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+ StorageDead(_5); // scope 1 at $DIR/cycle.rs:6:5: 6:8
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+ StorageDead(_4); // scope 1 at $DIR/cycle.rs:6:7: 6:8
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+ StorageDead(_3); // scope 1 at $DIR/cycle.rs:6:8: 6:9
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+ drop(_2) -> bb1; // scope 1 at $DIR/cycle.rs:7:1: 7:2
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}
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}
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@ -4,22 +4,72 @@
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fn main() -> () {
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let mut _0: (); // return place in scope 0 at $DIR/cycle.rs:16:11: 16:11
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let _1: (); // in scope 0 at $DIR/cycle.rs:17:5: 17:9
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+ let mut _2: fn() {g}; // in scope 0 at $DIR/cycle.rs:17:5: 17:9
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+ let mut _5: (); // in scope 0 at $DIR/cycle.rs:6:5: 6:8
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+ scope 1 (inlined f::<fn() {g}>) { // at $DIR/cycle.rs:17:5: 17:9
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+ debug g => _2; // in scope 1 at $DIR/cycle.rs:5:6: 5:7
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+ let _3: (); // in scope 1 at $DIR/cycle.rs:6:5: 6:8
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+ let mut _4: &fn() {g}; // in scope 1 at $DIR/cycle.rs:6:5: 6:6
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+ scope 2 (inlined <fn() {g} as Fn<()>>::call - shim(fn() {g})) { // at $DIR/cycle.rs:6:5: 6:8
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+ scope 3 (inlined g) { // at $SRC_DIR/core/src/ops/function.rs:LL:COL
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+ let mut _6: fn() {main}; // in scope 3 at $DIR/cycle.rs:12:5: 12:12
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+ scope 4 (inlined f::<fn() {main}>) { // at $DIR/cycle.rs:12:5: 12:12
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+ debug g => _6; // in scope 4 at $DIR/cycle.rs:5:6: 5:7
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+ let _7: (); // in scope 4 at $DIR/cycle.rs:6:5: 6:8
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+ let mut _8: &fn() {main}; // in scope 4 at $DIR/cycle.rs:6:5: 6:6
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+ scope 5 (inlined <fn() {main} as Fn<()>>::call - shim(fn() {main})) { // at $DIR/cycle.rs:6:5: 6:8
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+ }
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+ }
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+ }
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+ }
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+ }
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bb0: {
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StorageLive(_1); // scope 0 at $DIR/cycle.rs:17:5: 17:9
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_1 = f::<fn() {g}>(g) -> bb1; // scope 0 at $DIR/cycle.rs:17:5: 17:9
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// mir::Constant
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// + span: $DIR/cycle.rs:17:5: 17:6
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// + literal: Const { ty: fn(fn() {g}) {f::<fn() {g}>}, val: Value(Scalar(<ZST>)) }
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- _1 = f::<fn() {g}>(g) -> bb1; // scope 0 at $DIR/cycle.rs:17:5: 17:9
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+ StorageLive(_2); // scope 0 at $DIR/cycle.rs:17:5: 17:9
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+ _2 = g; // scope 0 at $DIR/cycle.rs:17:5: 17:9
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// mir::Constant
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- // + span: $DIR/cycle.rs:17:5: 17:6
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- // + literal: Const { ty: fn(fn() {g}) {f::<fn() {g}>}, val: Value(Scalar(<ZST>)) }
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- // mir::Constant
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// + span: $DIR/cycle.rs:17:7: 17:8
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// + literal: Const { ty: fn() {g}, val: Value(Scalar(<ZST>)) }
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+ StorageLive(_3); // scope 1 at $DIR/cycle.rs:6:5: 6:8
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+ StorageLive(_4); // scope 1 at $DIR/cycle.rs:6:5: 6:6
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+ _4 = &_2; // scope 1 at $DIR/cycle.rs:6:5: 6:6
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+ StorageLive(_5); // scope 1 at $DIR/cycle.rs:6:5: 6:8
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+ _5 = const (); // scope 1 at $DIR/cycle.rs:6:5: 6:8
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+ StorageLive(_6); // scope 3 at $DIR/cycle.rs:12:5: 12:12
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+ StorageLive(_7); // scope 4 at $DIR/cycle.rs:6:5: 6:8
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+ StorageLive(_8); // scope 4 at $DIR/cycle.rs:6:5: 6:6
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+ _8 = &_6; // scope 4 at $DIR/cycle.rs:6:5: 6:6
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+ _7 = move (*_8)() -> [return: bb4, unwind: bb2]; // scope 5 at $SRC_DIR/core/src/ops/function.rs:LL:COL
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}
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bb1: {
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+ StorageDead(_2); // scope 0 at $DIR/cycle.rs:17:5: 17:9
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StorageDead(_1); // scope 0 at $DIR/cycle.rs:17:9: 17:10
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_0 = const (); // scope 0 at $DIR/cycle.rs:16:11: 18:2
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return; // scope 0 at $DIR/cycle.rs:18:2: 18:2
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+ }
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+
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+ bb2 (cleanup): {
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+ drop(_2) -> bb3; // scope 1 at $DIR/cycle.rs:7:1: 7:2
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+ }
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+
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+ bb3 (cleanup): {
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+ resume; // scope 1 at $DIR/cycle.rs:5:1: 7:2
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+ }
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+
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+ bb4: {
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+ StorageDead(_8); // scope 4 at $DIR/cycle.rs:6:7: 6:8
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+ StorageDead(_7); // scope 4 at $DIR/cycle.rs:6:8: 6:9
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+ StorageDead(_6); // scope 3 at $DIR/cycle.rs:12:5: 12:12
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+ StorageDead(_5); // scope 1 at $DIR/cycle.rs:6:5: 6:8
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+ StorageDead(_4); // scope 1 at $DIR/cycle.rs:6:7: 6:8
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+ StorageDead(_3); // scope 1 at $DIR/cycle.rs:6:8: 6:9
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+ drop(_2) -> bb1; // scope 1 at $DIR/cycle.rs:7:1: 7:2
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}
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}
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@ -4,20 +4,13 @@
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fn main() -> () {
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let mut _0: (); // return place in scope 0 at $DIR/inline-cycle-generic.rs:8:11: 8:11
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let _1: (); // in scope 0 at $DIR/inline-cycle-generic.rs:9:5: 9:24
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+ scope 1 (inlined <C as Call>::call) { // at $DIR/inline-cycle-generic.rs:9:5: 9:24
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+ scope 2 (inlined <B<A> as Call>::call) { // at $DIR/inline-cycle-generic.rs:38:9: 38:31
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+ }
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+ }
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bb0: {
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StorageLive(_1); // scope 0 at $DIR/inline-cycle-generic.rs:9:5: 9:24
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- _1 = <C as Call>::call() -> bb1; // scope 0 at $DIR/inline-cycle-generic.rs:9:5: 9:24
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+ _1 = <A as Call>::call() -> bb1; // scope 2 at $DIR/inline-cycle-generic.rs:31:9: 31:28
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_1 = <C as Call>::call() -> bb1; // scope 0 at $DIR/inline-cycle-generic.rs:9:5: 9:24
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// mir::Constant
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- // + span: $DIR/inline-cycle-generic.rs:9:5: 9:22
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- // + literal: Const { ty: fn() {<C as Call>::call}, val: Value(Scalar(<ZST>)) }
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+ // + span: $DIR/inline-cycle-generic.rs:31:9: 31:26
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+ // + literal: Const { ty: fn() {<A as Call>::call}, val: Value(Scalar(<ZST>)) }
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// + span: $DIR/inline-cycle-generic.rs:9:5: 9:22
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// + literal: Const { ty: fn() {<C as Call>::call}, val: Value(Scalar(<ZST>)) }
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}
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bb1: {
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@ -1,10 +1,10 @@
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error: symbol-name(_ZN5basic4main17h87acd86b3a6f1754E)
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error: symbol-name(_ZN5basic4main17hcbad207c0eeb0b3bE)
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--> $DIR/basic.rs:8:1
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LL | #[rustc_symbol_name]
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| ^^^^^^^^^^^^^^^^^^^^
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error: demangling(basic::main::h87acd86b3a6f1754)
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error: demangling(basic::main::hcbad207c0eeb0b3b)
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--> $DIR/basic.rs:8:1
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LL | #[rustc_symbol_name]
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@ -1,10 +1,10 @@
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error: symbol-name(_ZN11issue_609253foo37Foo$LT$issue_60925..llv$u6d$..Foo$GT$3foo17h8d22952c45e20d65E)
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error: symbol-name(_ZN11issue_609253foo37Foo$LT$issue_60925..llv$u6d$..Foo$GT$3foo17h2f2efcf580c9b1eeE)
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--> $DIR/issue-60925.rs:21:9
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LL | #[rustc_symbol_name]
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| ^^^^^^^^^^^^^^^^^^^^
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error: demangling(issue_60925::foo::Foo<issue_60925::llvm::Foo>::foo::h8d22952c45e20d65)
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error: demangling(issue_60925::foo::Foo<issue_60925::llvm::Foo>::foo::h2f2efcf580c9b1ee)
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--> $DIR/issue-60925.rs:21:9
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LL | #[rustc_symbol_name]
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@ -7,7 +7,7 @@ trait Trait: SuperTrait<A = <Self as SuperTrait>::B> {}
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fn transmute<A, B>(x: A) -> B {
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foo::<A, B, dyn Trait<A = A, B = B>>(x)
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//~^ ERROR type mismatch resolving `<dyn Trait<A = A, B = B> as SuperTrait>::A == B`
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//~^ ERROR type mismatch resolving `<dyn Trait<B = B, A = A> as SuperTrait>::A == B`
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}
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fn foo<A, B, T: ?Sized>(x: T::A) -> B
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@ -1,4 +1,4 @@
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error[E0271]: type mismatch resolving `<dyn Trait<A = A, B = B> as SuperTrait>::A == B`
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error[E0271]: type mismatch resolving `<dyn Trait<B = B, A = A> as SuperTrait>::A == B`
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--> $DIR/enforce-supertrait-projection.rs:9:5
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LL | fn transmute<A, B>(x: A) -> B {
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