oldmap: get rid of the legacy each_key method

src/libcargo/cargo.rc

@@ -730,7 +730,7 @@ pub fn configure(opts: Options) -> Cargo {
     need_dir(&c.libdir);
     need_dir(&c.bindir);
 
-    for sources.each_key |k| {
+    for sources.each_key_ref |&k| {
         let mut s = sources.get(k);
         load_source_packages(&c, s);
         sources.insert(k, s);
@@ -1155,7 +1155,7 @@ pub fn cmd_install(c: &Cargo) {
 }
 
 pub fn sync(c: &Cargo) {
-    for c.sources.each_key |k| {
+    for c.sources.each_key_ref |&k| {
         let mut s = c.sources.get(k);
         sync_one(c, s);
         c.sources.insert(k, s);
@@ -1686,7 +1686,7 @@ pub fn cmd_sources(c: &Cargo) {
 
     match action {
         ~"clear" => {
-          for c.sources.each_key |k| {
+          for c.sources.each_key_ref |&k| {
                 c.sources.remove(k);
             }
 

src/librustc/middle/typeck/coherence.rs

@@ -417,7 +417,7 @@ pub impl CoherenceChecker {
         let coherence_info = &self.crate_context.coherence_info;
         let extension_methods = &coherence_info.extension_methods;
 
-        for extension_methods.each_key |trait_id| {
+        for extension_methods.each_key_ref |&trait_id| {
             self.check_implementation_coherence_of(trait_id);
         }
     }

src/librustc/rustc.rc

@@ -177,7 +177,7 @@ Available lint options:
 
     let lint_dict = lint::get_lint_dict();
     let mut max_key = 0;
-    for lint_dict.each_key |k| { max_key = uint::max(k.len(), max_key); }
+    for lint_dict.each_key_ref |&k| { max_key = uint::max(k.len(), max_key); }
     fn padded(max: uint, s: &str) -> ~str {
         str::from_bytes(vec::from_elem(max - s.len(), ' ' as u8)) + s
     }

src/libstd/oldmap.rs

@@ -320,10 +320,6 @@ pub mod chained {
             self.each_ref(|k, v| blk(*k, *v))
         }
 
-        pure fn each_key(blk: fn(key: K) -> bool) {
-            self.each_key_ref(|p| blk(*p))
-        }
-
         pure fn each_ref(blk: fn(key: &K, value: &V) -> bool) {
             for self.each_entry |entry| {
                 if !blk(&entry.key, &entry.value) { break; }
@@ -407,7 +403,7 @@ pub fn set_add<K:Eq IterBytes Hash Const Copy>(set: Set<K>, key: K) -> bool {
 /// Convert a set into a vector.
 pub pure fn vec_from_set<T:Eq IterBytes Hash Copy>(s: Set<T>) -> ~[T] {
     do vec::build_sized(s.len()) |push| {
-        for s.each_key() |k| {
+        for s.each_key_ref() |&k| {
             push(k);
         }
     }

src/libsyntax/parse/token.rs

@@ -454,13 +454,13 @@ pub fn mk_fake_ident_interner() -> @ident_interner {
  */
 pub fn keyword_table() -> HashMap<~str, ()> {
     let keywords = HashMap();
-    for temporary_keyword_table().each_key |word| {
+    for temporary_keyword_table().each_key_ref |&word| {
         keywords.insert(word, ());
     }
-    for strict_keyword_table().each_key |word| {
+    for strict_keyword_table().each_key_ref |&word| {
         keywords.insert(word, ());
     }
-    for reserved_keyword_table().each_key |word| {
+    for reserved_keyword_table().each_key_ref |&word| {
         keywords.insert(word, ());
     }
     keywords