kill the old visit_all_item_likes infrastructure

Author: nikomatsakis

src/librustc/dep_graph/mod.rs

@@ -18,7 +18,6 @@ mod raii;
 mod safe;
 mod shadow;
 mod thread;
-mod visit;
 
 pub use self::dep_tracking_map::{DepTrackingMap, DepTrackingMapConfig};
 pub use self::dep_node::DepNode;
@@ -28,5 +27,4 @@ pub use self::graph::WorkProduct;
 pub use self::query::DepGraphQuery;
 pub use self::safe::AssertDepGraphSafe;
 pub use self::safe::DepGraphSafe;
-pub use self::visit::visit_all_item_likes_in_krate;
 pub use self::raii::DepTask;

src/librustc/dep_graph/visit.rs

@@ -88,7 +88,7 @@ pub enum NestedVisitorMap<'this, 'tcx: 'this> {
     /// that are inside of an item-like.
     ///
     /// **This is the most common choice.** A very commmon pattern is
-    /// to use `tcx.visit_all_item_likes_in_krate()` as an outer loop,
+    /// to use `visit_all_item_likes()` as an outer loop,
     /// and to have the visitor that visits the contents of each item
     /// using this setting.
     OnlyBodies(&'this Map<'tcx>),

src/librustc/hir/intravisit.rs

@@ -19,9 +19,8 @@ use super::intravisit::Visitor;
 ///
 /// 1. **Shallow visit**: Get a simple callback for every item (or item-like thing) in the HIR.
 ///    - Example: find all items with a `#[foo]` attribute on them.
-///    - How: Implement `ItemLikeVisitor` and call `tcx.visit_all_item_likes_in_krate()`.
+///    - How: Implement `ItemLikeVisitor` and call `tcx.hir.krate().visit_all_item_likes()`.
 ///    - Pro: Efficient; just walks the lists of item-like things, not the nodes themselves.
-///    - Pro: Integrates well into dependency tracking.
 ///    - Con: Don't get information about nesting
 ///    - Con: Don't have methods for specific bits of HIR, like "on
 ///      every expr, do this".
@@ -30,7 +29,7 @@ use super::intravisit::Visitor;
 ///    within one another.
 ///    - Example: Examine each expression to look for its type and do some check or other.
 ///    - How: Implement `intravisit::Visitor` and use
-///      `tcx.visit_all_item_likes_in_krate(visitor.as_deep_visitor())`. Within
+///      `tcx.hir.krate().visit_all_item_likes(visitor.as_deep_visitor())`. Within
 ///      your `intravisit::Visitor` impl, implement methods like
 ///      `visit_expr()`; don't forget to invoke
 ///      `intravisit::walk_visit_expr()` to keep walking the subparts.

src/librustc/hir/itemlikevisit.rs

@@ -15,7 +15,7 @@ pub use self::IntVarValue::*;
 pub use self::LvaluePreference::*;
 pub use self::fold::TypeFoldable;
 
-use dep_graph::{self, DepNode};
+use dep_graph::DepNode;
 use hir::{map as hir_map, FreevarMap, TraitMap};
 use hir::def::{Def, CtorKind, ExportMap};
 use hir::def_id::{CrateNum, DefId, DefIndex, CRATE_DEF_INDEX, LOCAL_CRATE};
@@ -58,7 +58,6 @@ use rustc_data_structures::stable_hasher::{StableHasher, StableHasherResult,
 use rustc_data_structures::transitive_relation::TransitiveRelation;
 
 use hir;
-use hir::itemlikevisit::ItemLikeVisitor;
 
 pub use self::sty::{Binder, DebruijnIndex};
 pub use self::sty::{FnSig, PolyFnSig};
@@ -2565,14 +2564,6 @@ impl<'a, 'gcx, 'tcx> TyCtxt<'a, 'gcx, 'tcx> {
         self.mk_region(ty::ReScope(self.node_extent(id)))
     }
 
-    pub fn visit_all_item_likes_in_krate<V,F>(self,
-                                              dep_node_fn: F,
-                                              visitor: &mut V)
-        where F: FnMut(DefId) -> DepNode<DefId>, V: ItemLikeVisitor<'gcx>
-    {
-        dep_graph::visit_all_item_likes_in_krate(self.global_tcx(), dep_node_fn, visitor);
-    }
-
     /// Looks up the span of `impl_did` if the impl is local; otherwise returns `Err`
     /// with the name of the crate containing the impl.
     pub fn span_of_impl(self, impl_did: DefId) -> Result<Span, Symbol> {

src/librustc/ty/mod.rs

@@ -32,8 +32,6 @@ use self::VarianceTerm::*;
 
 pub type VarianceTermPtr<'a> = &'a VarianceTerm<'a>;
 
-use dep_graph::DepNode::ItemSignature as VarianceDepNode;
-
 #[derive(Copy, Clone, Debug)]
 pub struct InferredIndex(pub usize);
 
@@ -109,7 +107,7 @@ pub fn determine_parameters_to_be_inferred<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>
     };
 
     // See README.md for a discussion on dep-graph management.
-    tcx.visit_all_item_likes_in_krate(|def_id| VarianceDepNode(def_id), &mut terms_cx);
+    tcx.hir.krate().visit_all_item_likes(&mut terms_cx);
 
     terms_cx
 }