rustc: Remove some interior vectors from typestate and some useless vec-related imports

Author: pcwalton

src/comp/middle/trans.rs

@@ -15,9 +15,7 @@
 import std::int;
 import std::str;
 import std::uint;
-import std::vec;
 import std::str::rustrt::sbuf;
-import std::vec::rustrt::vbuf;
 import std::map;
 import std::map::hashmap;
 import std::option;
@@ -256,10 +254,10 @@ type fn_ctxt =
         // Derived tydescs are tydescs created at runtime, for types that
         // involve type parameters inside type constructors.  For example,
         // suppose a function parameterized by T creates a vector of type
-        // vec[T].  The function doesn't know what T is until runtime, and the
+        // [T].  The function doesn't know what T is until runtime, and the
         // function's caller knows T but doesn't know that a vector is
-        // involved.  So a tydesc for vec[T] can't be created until runtime,
-        // when information about both "vec" and "T" are available.  When such
+        // involved.  So a tydesc for [T] can't be created until runtime,
+        // when information about both "[T]" and "T" are available.  When such
         // a tydesc is created, we cache it in the derived_tydescs table for
         // the next time that such a tydesc is needed.
         hashmap[ty::t, derived_tydesc_info] derived_tydescs,

src/comp/middle/tstate/auxiliary.rs

@@ -591,14 +591,10 @@ fn expr_to_constr(ty::ctxt tcx, &@expr e) -> constr {
              expr_call(?operator, ?args)) {
             alt (operator.node) {
                 case (expr_path(?p)) {
-                    // FIXME: Remove this vec->ivec conversion.
-                    auto args_ivec = ~[];
-                    for (@expr e in args) { args_ivec += ~[e]; }
-
                     ret respan(e.span,
                                rec(id=node_id_for_constr(tcx, operator.id),
                                    c=npred(p, exprs_to_constr_args(tcx,
-                                        args_ivec))));
+                                           args))));
                 }
                 case (_) {
                     tcx.sess.span_fatal(operator.span,
@@ -698,9 +694,9 @@ type inst = tup(ident, def_id);
 type subst = tup(inst, inst)[];
 
 fn find_instances(&fn_ctxt fcx, &subst subst, &constraint c)
-    -> vec[tup(uint, uint)] {
+        -> (tup(uint, uint))[] {
 
-    let vec[tup(uint, uint)] rslt = [];
+    let (tup(uint, uint))[] rslt = ~[];
     if (ivec::len(subst) == 0u) {
         ret rslt;
     }
@@ -714,7 +710,7 @@ fn find_instances(&fn_ctxt fcx, &subst subst, &constraint c)
                     auto new = replace(subst, d);
                     alt (find_instance_(new, *descs)) {
                         case (some(?d1)) {
-                            rslt += [tup(old_bit_num, d1)];
+                            rslt += ~[tup(old_bit_num, d1)];
                         }
                         case (_) { }
                     }

src/comp/middle/tstate/states.rs

@@ -1,7 +1,4 @@
 import std::ivec;
-import std::vec;
-import std::vec::plus_option;
-import std::vec::cat_options;
 import std::option;
 import std::option::get;
 import std::option::is_none;

src/comp/syntax/ext/base.rs

@@ -1,5 +1,4 @@
 import std::ivec;
-import std::vec;
 import std::option;
 import std::map::hashmap;
 import driver::session::session;

src/comp/syntax/ext/env.rs

@@ -7,7 +7,6 @@
  */
 import std::ivec;
 import std::str;
-import std::vec;
 import std::option;
 import std::generic_os;
 import base::*;

src/comp/util/common.rs

@@ -174,14 +174,6 @@ fn lit_eq(&@ast::lit l, &@ast::lit m) -> bool {
     }
 }
 
-// FIXME move to vec
-fn any[T](&fn(&T) -> bool f, &vec[T] v) -> bool {
-    for (T t in v) {
-        if (f(t)) { ret true; } 
-    }
-    ret false;
-}
-
 tag call_kind {
     kind_call;
     kind_spawn;