Move the option type to its own module

6 files changed, 44 insertions, 45 deletions

diff --git a/src/comp/driver/rustc.rs b/src/comp/driver/rustc.rs
index 920b47d23c8..154b87cbcf4 100644
--- a/src/comp/driver/rustc.rs
+++ b/src/comp/driver/rustc.rs
@@ -5,9 +5,9 @@ import front.token;
 import middle.trans;
 import middle.resolve;
 
-import std.util.option;
-import std.util.some;
-import std.util.none;
+import std.option;
+import std.option.some;
+import std.option.none;
 import std._str;
 import std._vec;
 
@@ -39,8 +39,8 @@ fn usage(session.session sess, str argv0) {
 impure fn main(vec[str] args) {
 
   auto sess = session.session();
-  let option[str] input_file = none[str];
-  let option[str] output_file = none[str];
+  let option.t[str] input_file = none[str];
+  let option.t[str] output_file = none[str];
   let bool do_warn = true;
 
   auto i = 1u;
diff --git a/src/comp/front/ast.rs b/src/comp/front/ast.rs
index e635c1191b3..a6cbf1ce793 100644
--- a/src/comp/front/ast.rs
+++ b/src/comp/front/ast.rs
@@ -1,7 +1,6 @@
 
-import util.common.option;
 import std.map.hashmap;
-import std.util.option;
+import std.option;
 import util.common.span;
 import util.common.spanned;
 
@@ -71,16 +70,16 @@ tag unop {
 type stmt = spanned[stmt_];
 tag stmt_ {
     stmt_decl(@decl);
-    stmt_ret(option[@expr]);
+    stmt_ret(option.t[@expr]);
     stmt_log(@expr);
     stmt_check_expr(@expr);
     stmt_expr(@expr);
 }
 
-type local = rec(option[@ty] ty,
+type local = rec(option.t[@ty] ty,
                  bool infer,
                  ident ident,
-                 option[@expr] init,
+                 option.t[@expr] init,
                  def_id id);
 
 type decl = spanned[decl_];
@@ -99,14 +98,14 @@ tag expr_ {
     expr_unary(unop, @expr, ann);
     expr_lit(@lit, ann);
     expr_cast(@expr, @ty, ann);
-    expr_if(@expr, block, option[block], ann);
+    expr_if(@expr, block, option.t[block], ann);
     expr_while(@expr, block, ann);
     expr_do_while(block, @expr, ann);
     expr_block(block, ann);
     expr_assign(@expr /* TODO: @expr|is_lval */, @expr, ann);
     expr_field(@expr, ident, ann);
     expr_index(@expr, @expr, ann);
-    expr_name(name, option[def], ann);
+    expr_name(name, option.t[def], ann);
 }
 
 type lit = spanned[lit_];
@@ -131,7 +130,7 @@ tag ty_ {
     ty_box(@ty);
     ty_vec(@ty);
     ty_tup(vec[tup(bool /* mutability */, @ty)]);
-    ty_path(path, option[def]);
+    ty_path(path, option.t[def]);
 }
 
 tag mode {
diff --git a/src/comp/front/parser.rs b/src/comp/front/parser.rs
index d42f7b4582c..6eb334ca81f 100644
--- a/src/comp/front/parser.rs
+++ b/src/comp/front/parser.rs
@@ -1,7 +1,7 @@
 import std._io;
-import std.util.option;
-import std.util.some;
-import std.util.none;
+import std.option;
+import std.option.some;
+import std.option.none;
 import std.map.hashmap;
 
 import driver.session;
@@ -157,7 +157,7 @@ impure fn parse_arg(parser p) -> ast.arg {
 
 impure fn parse_seq[T](token.token bra,
                       token.token ket,
-                      option[token.token] sep,
+                      option.t[token.token] sep,
                       (impure fn(parser) -> T) f,
                       parser p) -> util.common.spanned[vec[T]] {
     let bool first = true;
@@ -185,7 +185,7 @@ impure fn parse_seq[T](token.token bra,
     ret spanned(lo, hi, v);
 }
 
-impure fn parse_lit(parser p) -> option[ast.lit] {
+impure fn parse_lit(parser p) -> option.t[ast.lit] {
     auto lo = p.get_span();
     let ast.lit_ lit;
     alt (p.peek()) {
@@ -600,7 +600,7 @@ impure fn parse_if_expr(parser p) -> @ast.expr {
     auto cond = parse_expr(p);
     expect(p, token.RPAREN);
     auto thn = parse_block(p);
-    let option[ast.block] els = none[ast.block];
+    let option.t[ast.block] els = none[ast.block];
     hi = thn.span;
     alt (p.peek()) {
         case (token.ELSE) {
@@ -664,7 +664,7 @@ impure fn parse_expr(parser p) -> @ast.expr {
     }
 }
 
-impure fn parse_initializer(parser p) -> option[@ast.expr] {
+impure fn parse_initializer(parser p) -> option.t[@ast.expr] {
     if (p.peek() == token.EQ) {
         p.bump();
         ret some(parse_expr(p));
diff --git a/src/comp/middle/fold.rs b/src/comp/middle/fold.rs
index 8b38c894c8c..48363437b37 100644
--- a/src/comp/middle/fold.rs
+++ b/src/comp/middle/fold.rs
@@ -1,7 +1,7 @@
 import std.map.hashmap;
-import std.util.option;
-import std.util.some;
-import std.util.none;
+import std.option;
+import std.option.some;
+import std.option.none;
 
 import util.common.new_str_hash;
 import util.common.spanned;
@@ -47,7 +47,7 @@ type ast_fold[ENV] =
          vec[tup(bool, @ty)] elts) -> @ty)        fold_ty_tup,
 
      (fn(&ENV e, &span sp, ast.path p,
-         &option[def] d) -> @ty)                  fold_ty_path,
+         &option.t[def] d) -> @ty)                  fold_ty_path,
 
      // Expr folds.
      (fn(&ENV e, &span sp,
@@ -79,7 +79,7 @@ type ast_fold[ENV] =
 
      (fn(&ENV e, &span sp,
          @expr cond, &block thn,
-         &option[block] els,
+         &option.t[block] els,
          ann a) -> @expr)                         fold_expr_if,
 
      (fn(&ENV e, &span sp,
@@ -107,7 +107,7 @@ type ast_fold[ENV] =
 
      (fn(&ENV e, &span sp,
          &name n,
-         &option[def] d,
+         &option.t[def] d,
          ann a) -> @expr)                         fold_expr_name,
 
      // Decl folds.
@@ -123,7 +123,7 @@ type ast_fold[ENV] =
          @decl decl) -> @stmt)                    fold_stmt_decl,
 
      (fn(&ENV e, &span sp,
-         &option[@expr] rv) -> @stmt)             fold_stmt_ret,
+         &option.t[@expr] rv) -> @stmt)           fold_stmt_ret,
 
      (fn(&ENV e, &span sp,
          @expr e) -> @stmt)                       fold_stmt_log,
@@ -568,7 +568,7 @@ fn identity_fold_ty_tup[ENV](&ENV env, &span sp, vec[tup(bool,@ty)] elts)
 }
 
 fn identity_fold_ty_path[ENV](&ENV env, &span sp, ast.path p,
-                        &option[def] d) -> @ty {
+                        &option.t[def] d) -> @ty {
     ret @respan(sp, ast.ty_path(p, d));
 }
 
@@ -614,7 +614,7 @@ fn identity_fold_expr_lit[ENV](&ENV env, &span sp, @ast.lit lit,
 
 fn identity_fold_expr_if[ENV](&ENV env, &span sp,
                               @expr cond, &block thn,
-                              &option[block] els, ann a) -> @expr {
+                              &option.t[block] els, ann a) -> @expr {
     ret @respan(sp, ast.expr_if(cond, thn, els, a));
 }
 
@@ -650,7 +650,7 @@ fn identity_fold_expr_index[ENV](&ENV env, &span sp,
 }
 
 fn identity_fold_expr_name[ENV](&ENV env, &span sp,
-                                &name n, &option[def] d,
+                                &name n, &option.t[def] d,
                                 ann a) -> @expr {
     ret @respan(sp, ast.expr_name(n, d, a));
 }
@@ -675,7 +675,7 @@ fn identity_fold_stmt_decl[ENV](&ENV env, &span sp, @decl d) -> @stmt {
 }
 
 fn identity_fold_stmt_ret[ENV](&ENV env, &span sp,
-                               &option[@expr] rv) -> @stmt {
+                               &option.t[@expr] rv) -> @stmt {
     ret @respan(sp, ast.stmt_ret(rv));
 }
 
diff --git a/src/comp/middle/resolve.rs b/src/comp/middle/resolve.rs
index 5741bac44d6..875996db120 100644
--- a/src/comp/middle/resolve.rs
+++ b/src/comp/middle/resolve.rs
@@ -8,9 +8,9 @@ import std.map.hashmap;
 import std.list.list;
 import std.list.nil;
 import std.list.cons;
-import std.util.option;
-import std.util.some;
-import std.util.none;
+import std.option;
+import std.option.some;
+import std.option.none;
 import std._str;
 
 tag scope {
@@ -22,11 +22,11 @@ tag scope {
 type env = rec(list[scope] scopes,
                session.session sess);
 
-fn lookup_name(&env e, ast.ident i) -> option[def] {
+fn lookup_name(&env e, ast.ident i) -> option.t[def] {
 
     // log "resolving name " + i;
 
-    fn found_def_item(@ast.item i) -> option[def] {
+    fn found_def_item(@ast.item i) -> option.t[def] {
         alt (i.node) {
             case (ast.item_fn(_, _, ?id)) {
                 ret some[def](ast.def_fn(id));
@@ -40,7 +40,7 @@ fn lookup_name(&env e, ast.ident i) -> option[def] {
         }
     }
 
-    fn found_decl_stmt(@ast.stmt s) -> option[def] {
+    fn found_decl_stmt(@ast.stmt s) -> option.t[def] {
         alt (s.node) {
             case (ast.stmt_decl(?d)) {
                 alt (d.node) {
@@ -56,7 +56,7 @@ fn lookup_name(&env e, ast.ident i) -> option[def] {
         ret none[def];
     }
 
-    fn check_mod(ast.ident i, ast._mod m) -> option[def] {
+    fn check_mod(ast.ident i, ast._mod m) -> option.t[def] {
         alt (m.index.find(i)) {
             case (some[uint](?ix)) {
                 ret found_def_item(m.items.(ix));
@@ -66,7 +66,7 @@ fn lookup_name(&env e, ast.ident i) -> option[def] {
     }
 
 
-    fn in_scope(ast.ident i, &scope s) -> option[def] {
+    fn in_scope(ast.ident i, &scope s) -> option.t[def] {
         alt (s) {
 
             case (scope_crate(?c)) {
@@ -103,7 +103,7 @@ fn lookup_name(&env e, ast.ident i) -> option[def] {
 }
 
 fn fold_expr_name(&env e, &span sp, &ast.name n,
-                  &option[def] d, ann a) -> @ast.expr {
+                  &option.t[def] d, ann a) -> @ast.expr {
 
     auto d_ = lookup_name(e, n.node.ident);
 
diff --git a/src/comp/middle/trans.rs b/src/comp/middle/trans.rs
index 1783925e1a6..ba4f5cdfdd4 100644
--- a/src/comp/middle/trans.rs
+++ b/src/comp/middle/trans.rs
@@ -3,9 +3,9 @@ import std._vec;
 import std._str.rustrt.sbuf;
 import std._vec.rustrt.vbuf;
 import std.map.hashmap;
-import std.util.option;
-import std.util.some;
-import std.util.none;
+import std.option;
+import std.option.some;
+import std.option.none;
 
 import front.ast;
 import driver.session;
@@ -613,7 +613,7 @@ impure fn trans_binary(@block_ctxt cx, ast.binop op,
 }
 
 impure fn trans_if(@block_ctxt cx, &ast.expr cond,
-                   &ast.block thn, &option[ast.block] els) -> result {
+                   &ast.block thn, &option.t[ast.block] els) -> result {
 
     auto cond_res = trans_expr(cx, cond);
 
@@ -868,7 +868,7 @@ impure fn trans_check_expr(@block_ctxt cx, &ast.expr e) -> result {
     ret res(next_cx, C_nil());
 }
 
-impure fn trans_ret(@block_ctxt cx, &option[@ast.expr] e) -> result {
+impure fn trans_ret(@block_ctxt cx, &option.t[@ast.expr] e) -> result {
     auto r = res(cx, C_nil());
     alt (e) {
         case (some[@ast.expr](?x)) {