libsyntax: Remove some multi-gigabyte clones that were preventing bootstrapping on Windows.

Author: pcwalton

src/libextra/serialize.rs

@@ -429,6 +429,18 @@ impl<D:Decoder,T:Decodable<D>> Decodable<D> for @T {
     }
 }
 
+impl<S:Encoder,T:Encodable<S>> Encodable<S> for @mut T {
+    fn encode(&self, s: &mut S) {
+        (**self).encode(s)
+    }
+}
+
+impl<D:Decoder,T:Decodable<D>> Decodable<D> for @mut T {
+    fn decode(d: &mut D) -> @mut T {
+        @mut Decodable::decode(d)
+    }
+}
+
 impl<'self, S:Encoder,T:Encodable<S>> Encodable<S> for &'self [T] {
     fn encode(&self, s: &mut S) {
         do s.emit_seq(self.len()) |s| {
@@ -650,18 +662,6 @@ impl<
     }
 }
 
-impl<S: Encoder, T: Encodable<S>> Encodable<S> for @mut DList<T> {
-    fn encode(&self, s: &mut S) {
-        do s.emit_seq(self.len()) |s| {
-            let mut i = 0;
-            for self.iter().advance |e| {
-                s.emit_seq_elt(i, |s| e.encode(s));
-                i += 1;
-            }
-        }
-    }
-}
-
 impl<D:Decoder,T:Decodable<D>> Decodable<D> for DList<T> {
     fn decode(d: &mut D) -> DList<T> {
         let mut list = DList::new();

src/libstd/to_bytes.rs

@@ -319,6 +319,13 @@ impl<A:IterBytes> IterBytes for @A {
     }
 }
 
+impl<A:IterBytes> IterBytes for @mut A {
+    #[inline]
+    fn iter_bytes(&self, lsb0: bool, f: Cb) -> bool {
+        (**self).iter_bytes(lsb0, f)
+    }
+}
+
 impl<A:IterBytes> IterBytes for ~A {
     #[inline]
     fn iter_bytes(&self, lsb0: bool, f: Cb) -> bool {

src/libsyntax/ast.rs

@@ -505,13 +505,13 @@ pub enum token_tree {
     tt_tok(span, ::parse::token::Token),
     // a delimited sequence (the delimiters appear as the first
     // and last elements of the vector)
-    tt_delim(~[token_tree]),
+    tt_delim(@mut ~[token_tree]),
     // These only make sense for right-hand-sides of MBE macros:
 
     // a kleene-style repetition sequence with a span, a tt_forest,
     // an optional separator (?), and a boolean where true indicates
     // zero or more (*), and false indicates one or more (+).
-    tt_seq(span, ~[token_tree], Option<::parse::token::Token>, bool),
+    tt_seq(span, @mut ~[token_tree], Option<::parse::token::Token>, bool),
 
     // a syntactic variable that will be filled in by macro expansion.
     tt_nonterminal(span, ident)

src/libsyntax/ext/log_syntax.rs

@@ -25,7 +25,7 @@ pub fn expand_syntax_ext(cx: @ExtCtxt,
     cx.print_backtrace();
     io::stdout().write_line(
         print::pprust::tt_to_str(
-            &ast::tt_delim(tt.to_owned()),
+            &ast::tt_delim(@mut tt.to_owned()),
             get_ident_interner()));
 
     //trivial expression

src/libsyntax/ext/quote.rs

@@ -605,7 +605,7 @@ fn mk_tt(cx: @ExtCtxt, sp: span, tt: &ast::token_tree)
             ~[cx.stmt_expr(e_push)]
         }
 
-        ast::tt_delim(ref tts) => mk_tts(cx, sp, *tts),
+        ast::tt_delim(ref tts) => mk_tts(cx, sp, **tts),
         ast::tt_seq(*) => fail!("tt_seq in quote!"),
 
         ast::tt_nonterminal(sp, ident) => {

src/libsyntax/ext/tt/macro_rules.rs

@@ -85,7 +85,7 @@ pub fn add_new_extension(cx: @ExtCtxt,
             io::println(fmt!("%s! { %s }",
                              cx.str_of(name),
                              print::pprust::tt_to_str(
-                                 &ast::tt_delim(arg.to_owned()),
+                                 &ast::tt_delim(@mut arg.to_owned()),
                                  get_ident_interner())));
         }
 

src/libsyntax/ext/tt/transcribe.rs

@@ -219,7 +219,7 @@ pub fn tt_next_token(r: &mut TtReader) -> TokenAndSpan {
         match r.stack.forest[r.stack.idx].clone() {
           tt_delim(tts) => {
             r.stack = @mut TtFrame {
-                forest: @mut tts,
+                forest: tts,
                 idx: 0u,
                 dotdotdoted: false,
                 sep: None,
@@ -235,7 +235,7 @@ pub fn tt_next_token(r: &mut TtReader) -> TokenAndSpan {
           }
           tt_seq(sp, tts, sep, zerok) => {
             // XXX(pcwalton): Bad copy.
-            let t = tt_seq(sp, tts.clone(), sep.clone(), zerok);
+            let t = tt_seq(sp, tts, sep.clone(), zerok);
             match lockstep_iter_size(&t, r) {
               lis_unconstrained => {
                 r.sp_diag.span_fatal(
@@ -263,7 +263,7 @@ pub fn tt_next_token(r: &mut TtReader) -> TokenAndSpan {
                     r.repeat_len.push(len);
                     r.repeat_idx.push(0u);
                     r.stack = @mut TtFrame {
-                        forest: @mut tts,
+                        forest: tts,
                         idx: 0u,
                         dotdotdoted: true,
                         sep: sep,

src/libsyntax/fold.rs

@@ -131,10 +131,10 @@ fn fold_tts(tts : &[token_tree], fld: @ast_fold) -> ~[token_tree] {
             tt_tok(span, ref tok) =>
             tt_tok(span,maybe_fold_ident(tok,fld)),
             tt_delim(ref tts) =>
-            tt_delim(fold_tts(*tts,fld)),
+            tt_delim(@mut fold_tts(**tts, fld)),
             tt_seq(span, ref pattern, ref sep, is_optional) =>
             tt_seq(span,
-                   fold_tts(*pattern,fld),
+                   @mut fold_tts(**pattern, fld),
                    sep.map(|tok|maybe_fold_ident(tok,fld)),
                    is_optional),
             tt_nonterminal(sp,ref ident) =>

src/libsyntax/parse/parser.rs

@@ -1925,7 +1925,7 @@ impl Parser {
                     };
                     tt_seq(
                         mk_sp(sp.lo, p.span.hi),
-                        seq,
+                        @mut seq,
                         s,
                         z
                     )
@@ -1950,21 +1950,20 @@ impl Parser {
             }
             token::LPAREN | token::LBRACE | token::LBRACKET => {
                 let close_delim = token::flip_delimiter(&*self.token);
-                tt_delim(
-                    vec::append(
-                        // the open delimiter:
-                        ~[parse_any_tt_tok(self)],
-                        vec::append(
-                            self.parse_seq_to_before_end(
-                                &close_delim,
-                                seq_sep_none(),
-                                |p| p.parse_token_tree()
-                            ),
-                            // the close delimiter:
-                            [parse_any_tt_tok(self)]
-                        )
-                    )
-                )
+
+                // Parse the open delimiter.
+                let mut result = ~[parse_any_tt_tok(self)];
+
+                let trees =
+                    self.parse_seq_to_before_end(&close_delim,
+                                                 seq_sep_none(),
+                                                 |p| p.parse_token_tree());
+                result.push_all_move(trees);
+
+                // Parse the close delimiter.
+                result.push(parse_any_tt_tok(self));
+
+                tt_delim(@mut result)
             }
             _ => parse_non_delim_tt_tok(self)
         }