syntax: remove #![feature(box_syntax, box_patterns)]

Author: erickt

src/libsyntax/ext/base.rs

@@ -262,10 +262,10 @@ macro_rules! make_MacEager {
         impl MacEager {
             $(
                 pub fn $fld(v: $t) -> Box<MacResult> {
-                    box MacEager {
+                    Box::new(MacEager {
                         $fld: Some(v),
                         ..Default::default()
-                    }
+                    })
                 }
             )*
         }
@@ -331,7 +331,7 @@ impl DummyResult {
     /// Use this as a return value after hitting any errors and
     /// calling `span_err`.
     pub fn any(sp: Span) -> Box<MacResult+'static> {
-        box DummyResult { expr_only: false, span: sp }
+        Box::new(DummyResult { expr_only: false, span: sp })
     }
 
     /// Create a default MacResult that can only be an expression.
@@ -340,7 +340,7 @@ impl DummyResult {
     /// if an error is encountered internally, the user will receive
     /// an error that they also used it in the wrong place.
     pub fn expr(sp: Span) -> Box<MacResult+'static> {
-        box DummyResult { expr_only: true, span: sp }
+        Box::new(DummyResult { expr_only: true, span: sp })
     }
 
     /// A plain dummy expression.

src/libsyntax/ext/deriving/cmp/ord.rs

@@ -48,7 +48,7 @@ pub fn expand_deriving_ord<F>(cx: &mut ExtCtxt,
     let ordering_ty = Literal(path_std!(cx, core::cmp::Ordering));
     let ret_ty = Literal(Path::new_(pathvec_std!(cx, core::option::Option),
                                     None,
-                                    vec![box ordering_ty],
+                                    vec![Box::new(ordering_ty)],
                                     true));
 
     let inline = cx.meta_word(span, InternedString::new("inline"));

src/libsyntax/ext/deriving/decodable.rs

@@ -71,14 +71,14 @@ fn expand_deriving_decodable_imp<F>(cx: &mut ExtCtxt,
                                     vec!(), true))))
                 },
                 explicit_self: None,
-                args: vec!(Ptr(box Literal(Path::new_local("__D")),
+                args: vec!(Ptr(Box::new(Literal(Path::new_local("__D"))),
                             Borrowed(None, MutMutable))),
                 ret_ty: Literal(Path::new_(
                     pathvec_std!(cx, core::result::Result),
                     None,
-                    vec!(box Self_, box Literal(Path::new_(
+                    vec!(Box::new(Self_), Box::new(Literal(Path::new_(
                         vec!["__D", "Error"], None, vec![], false
-                    ))),
+                    )))),
                     true
                 )),
                 attributes: Vec::new(),

src/libsyntax/ext/deriving/encodable.rs

@@ -147,14 +147,14 @@ fn expand_deriving_encodable_imp<F>(cx: &mut ExtCtxt,
                                     vec!(), true))))
                 },
                 explicit_self: borrowed_explicit_self(),
-                args: vec!(Ptr(box Literal(Path::new_local("__S")),
+                args: vec!(Ptr(Box::new(Literal(Path::new_local("__S"))),
                             Borrowed(None, MutMutable))),
                 ret_ty: Literal(Path::new_(
                     pathvec_std!(cx, core::result::Result),
                     None,
-                    vec!(box Tuple(Vec::new()), box Literal(Path::new_(
+                    vec!(Box::new(Tuple(Vec::new())), Box::new(Literal(Path::new_(
                         vec!["__S", "Error"], None, vec![], false
-                    ))),
+                    )))),
                     true
                 )),
                 attributes: Vec::new(),

src/libsyntax/ext/deriving/generic/mod.rs

@@ -808,7 +808,7 @@ impl<'a> MethodDef<'a> {
                 Self_ if nonstatic  => {
                     self_args.push(arg_expr);
                 }
-                Ptr(box Self_, _) if nonstatic => {
+                Ptr(ref ty, _) if **ty == Self_ && nonstatic => {
                     self_args.push(cx.expr_deref(trait_.span, arg_expr))
                 }
                 _ => {

src/libsyntax/ext/deriving/generic/ty.rs

@@ -24,7 +24,7 @@ use parse::token::special_idents;
 use ptr::P;
 
 /// The types of pointers
-#[derive(Clone)]
+#[derive(Clone, Eq, PartialEq)]
 pub enum PtrTy<'a> {
     /// &'lifetime mut
     Borrowed(Option<&'a str>, ast::Mutability),
@@ -34,7 +34,7 @@ pub enum PtrTy<'a> {
 
 /// A path, e.g. `::std::option::Option::<i32>` (global). Has support
 /// for type parameters and a lifetime.
-#[derive(Clone)]
+#[derive(Clone, Eq, PartialEq)]
 pub struct Path<'a> {
     pub path: Vec<&'a str> ,
     pub lifetime: Option<&'a str>,
@@ -85,7 +85,7 @@ impl<'a> Path<'a> {
 }
 
 /// A type. Supports pointers, Self, and literals
-#[derive(Clone)]
+#[derive(Clone, Eq, PartialEq)]
 pub enum Ty<'a> {
     Self_,
     /// &/Box/ Ty
@@ -109,7 +109,7 @@ pub fn borrowed_explicit_self<'r>() -> Option<Option<PtrTy<'r>>> {
 }
 
 pub fn borrowed_self<'r>() -> Ty<'r> {
-    borrowed(box Self_)
+    borrowed(Box::new(Self_))
 }
 
 pub fn nil_ty<'r>() -> Ty<'r> {

src/libsyntax/ext/deriving/hash.rs

@@ -42,7 +42,7 @@ pub fn expand_deriving_hash<F>(cx: &mut ExtCtxt,
                                   vec![path_std!(cx, core::hash::Hasher)])],
                 },
                 explicit_self: borrowed_explicit_self(),
-                args: vec!(Ptr(box Literal(arg), Borrowed(None, MutMutable))),
+                args: vec!(Ptr(Box::new(Literal(arg)), Borrowed(None, MutMutable))),
                 ret_ty: nil_ty(),
                 attributes: vec![],
                 combine_substructure: combine_substructure(Box::new(|a, b, c| {

src/libsyntax/ext/deriving/primitive.rs

@@ -41,7 +41,7 @@ pub fn expand_deriving_from_primitive<F>(cx: &mut ExtCtxt,
                 args: vec!(Literal(path_local!(i64))),
                 ret_ty: Literal(Path::new_(pathvec_std!(cx, core::option::Option),
                                            None,
-                                           vec!(box Self_),
+                                           vec!(Box::new(Self_)),
                                            true)),
                 // #[inline] liable to cause code-bloat
                 attributes: attrs.clone(),
@@ -56,7 +56,7 @@ pub fn expand_deriving_from_primitive<F>(cx: &mut ExtCtxt,
                 args: vec!(Literal(path_local!(u64))),
                 ret_ty: Literal(Path::new_(pathvec_std!(cx, core::option::Option),
                                            None,
-                                           vec!(box Self_),
+                                           vec!(Box::new(Self_)),
                                            true)),
                 // #[inline] liable to cause code-bloat
                 attributes: attrs,

src/libsyntax/ext/deriving/show.rs

@@ -26,7 +26,7 @@ pub fn expand_deriving_show<F>(cx: &mut ExtCtxt,
     F: FnOnce(P<Item>),
 {
     // &mut ::std::fmt::Formatter
-    let fmtr = Ptr(box Literal(path_std!(cx, core::fmt::Formatter)),
+    let fmtr = Ptr(Box::new(Literal(path_std!(cx, core::fmt::Formatter))),
                    Borrowed(None, ast::MutMutable));
 
     let trait_def = TraitDef {

src/libsyntax/ext/source_util.rs

@@ -128,7 +128,7 @@ pub fn expand_include<'cx>(cx: &'cx mut ExtCtxt, sp: Span, tts: &[ast::TokenTree
         }
     }
 
-    box ExpandResult { p: p }
+    Box::new(ExpandResult { p: p })
 }
 
 // include_str! : read the given file, insert it as a literal string expr

src/libsyntax/ext/tt/macro_parser.rs

@@ -167,7 +167,7 @@ pub fn initial_matcher_pos(ms: Rc<Vec<TokenTree>>, sep: Option<Token>, lo: ByteP
                            -> Box<MatcherPos> {
     let match_idx_hi = count_names(&ms[..]);
     let matches: Vec<_> = (0..match_idx_hi).map(|_| Vec::new()).collect();
-    box MatcherPos {
+    Box::new(MatcherPos {
         stack: vec![],
         top_elts: TtSeq(ms),
         sep: sep,
@@ -178,7 +178,7 @@ pub fn initial_matcher_pos(ms: Rc<Vec<TokenTree>>, sep: Option<Token>, lo: ByteP
         match_cur: 0,
         match_hi: match_idx_hi,
         sp_lo: lo
-    }
+    })
 }
 
 /// NamedMatch is a pattern-match result for a single token::MATCH_NONTERMINAL:
@@ -398,7 +398,7 @@ pub fn parse(sess: &ParseSess,
                         let matches: Vec<_> = (0..ei.matches.len())
                             .map(|_| Vec::new()).collect();
                         let ei_t = ei;
-                        cur_eis.push(box MatcherPos {
+                        cur_eis.push(Box::new(MatcherPos {
                             stack: vec![],
                             sep: seq.separator.clone(),
                             idx: 0,
@@ -409,7 +409,7 @@ pub fn parse(sess: &ParseSess,
                             up: Some(ei_t),
                             sp_lo: sp.lo,
                             top_elts: Tt(TtSequence(sp, seq)),
-                        });
+                        }));
                     }
                     TtToken(_, MatchNt(..)) => {
                         // Built-in nonterminals never start with these tokens,
@@ -535,15 +535,15 @@ pub fn parse_nt(p: &mut Parser, sp: Span, name: &str) -> Nonterminal {
       "ty" => token::NtTy(p.parse_ty()),
       // this could be handled like a token, since it is one
       "ident" => match p.token {
-        token::Ident(sn,b) => { panictry!(p.bump()); token::NtIdent(box sn,b) }
+        token::Ident(sn,b) => { panictry!(p.bump()); token::NtIdent(Box::new(sn),b) }
         _ => {
             let token_str = pprust::token_to_string(&p.token);
             panic!(p.fatal(&format!("expected ident, found {}",
                              &token_str[..])))
         }
       },
       "path" => {
-        token::NtPath(box panictry!(p.parse_path(LifetimeAndTypesWithoutColons)))
+        token::NtPath(Box::new(panictry!(p.parse_path(LifetimeAndTypesWithoutColons))))
       }
       "meta" => token::NtMeta(p.parse_meta_item()),
       _ => {

src/libsyntax/ext/tt/macro_rules.rs

@@ -192,15 +192,15 @@ fn generic_extension<'cx>(cx: &'cx ExtCtxt,
                 panictry!(p.check_unknown_macro_variable());
                 // Let the context choose how to interpret the result.
                 // Weird, but useful for X-macros.
-                return box ParserAnyMacro {
+                return Box::new(ParserAnyMacro {
                     parser: RefCell::new(p),
 
                     // Pass along the original expansion site and the name of the macro
                     // so we can print a useful error message if the parse of the expanded
                     // macro leaves unparsed tokens.
                     site_span: sp,
                     macro_ident: name
-                }
+                })
               }
               Failure(sp, ref msg) => if sp.lo >= best_fail_spot.lo {
                 best_fail_spot = sp;
@@ -281,12 +281,12 @@ pub fn compile<'cx>(cx: &'cx mut ExtCtxt,
         _ => cx.span_bug(def.span, "wrong-structured rhs")
     };
 
-    let exp: Box<_> = box MacroRulesMacroExpander {
+    let exp: Box<_> = Box::new(MacroRulesMacroExpander {
         name: def.ident,
         imported_from: def.imported_from,
         lhses: lhses,
         rhses: rhses,
-    };
+    });
 
     NormalTT(exp, Some(def.span), def.allow_internal_unstable)
 }

src/libsyntax/ext/tt/transcribe.rs

@@ -294,9 +294,9 @@ pub fn tt_next_token(r: &mut TtReader) -> TokenAndSpan {
                             // sidestep the interpolation tricks for ident because
                             // (a) idents can be in lots of places, so it'd be a pain
                             // (b) we actually can, since it's a token.
-                            MatchedNonterminal(NtIdent(box sn, b)) => {
+                            MatchedNonterminal(NtIdent(ref sn, b)) => {
                                 r.cur_span = sp;
-                                r.cur_tok = token::Ident(sn, b);
+                                r.cur_tok = token::Ident(**sn, b);
                                 return ret_val;
                             }
                             MatchedNonterminal(ref other_whole_nt) => {

src/libsyntax/fold.rs

@@ -677,10 +677,10 @@ pub fn noop_fold_interpolated<T: Folder>(nt: token::Nonterminal, fld: &mut T)
         token::NtPat(pat) => token::NtPat(fld.fold_pat(pat)),
         token::NtExpr(expr) => token::NtExpr(fld.fold_expr(expr)),
         token::NtTy(ty) => token::NtTy(fld.fold_ty(ty)),
-        token::NtIdent(box id, is_mod_name) =>
-            token::NtIdent(box fld.fold_ident(id), is_mod_name),
+        token::NtIdent(id, is_mod_name) =>
+            token::NtIdent(Box::new(fld.fold_ident(*id)), is_mod_name),
         token::NtMeta(meta_item) => token::NtMeta(fld.fold_meta_item(meta_item)),
-        token::NtPath(box path) => token::NtPath(box fld.fold_path(path)),
+        token::NtPath(path) => token::NtPath(Box::new(fld.fold_path(*path))),
         token::NtTT(tt) => token::NtTT(P(fld.fold_tt(&*tt))),
     }
 }

src/libsyntax/lib.rs

@@ -25,8 +25,6 @@
        html_favicon_url = "http://www.rust-lang.org/favicon.ico",
        html_root_url = "http://doc.rust-lang.org/nightly/")]
 
-#![feature(box_patterns)]
-#![feature(box_syntax)]
 #![feature(collections)]
 #![feature(core)]
 #![feature(libc)]

src/libsyntax/parse/mod.rs

@@ -288,7 +288,7 @@ pub fn filemap_to_tts(sess: &ParseSess, filemap: Rc<FileMap>)
     // parsing tt's probably shouldn't require a parser at all.
     let cfg = Vec::new();
     let srdr = lexer::StringReader::new(&sess.span_diagnostic, filemap);
-    let mut p1 = Parser::new(sess, cfg, box srdr);
+    let mut p1 = Parser::new(sess, cfg, Box::new(srdr));
     panictry!(p1.parse_all_token_trees())
 }
 
@@ -297,7 +297,7 @@ pub fn tts_to_parser<'a>(sess: &'a ParseSess,
                          tts: Vec<ast::TokenTree>,
                          cfg: ast::CrateConfig) -> Parser<'a> {
     let trdr = lexer::new_tt_reader(&sess.span_diagnostic, None, None, tts);
-    let mut p = Parser::new(sess, cfg, box trdr);
+    let mut p = Parser::new(sess, cfg, Box::new(trdr));
     panictry!(p.check_unknown_macro_variable());
     p
 }
@@ -360,7 +360,7 @@ pub mod with_hygiene {
         use super::lexer::make_reader_with_embedded_idents as make_reader;
         let cfg = Vec::new();
         let srdr = make_reader(&sess.span_diagnostic, filemap);
-        let mut p1 = Parser::new(sess, cfg, box srdr);
+        let mut p1 = Parser::new(sess, cfg, Box::new(srdr));
         panictry!(p1.parse_all_token_trees())
     }
 }

src/libsyntax/parse/parser.rs

@@ -897,7 +897,7 @@ impl<'a> Parser<'a> {
         self.last_span = self.span;
         // Stash token for error recovery (sometimes; clone is not necessarily cheap).
         self.last_token = if self.token.is_ident() || self.token.is_path() {
-            Some(box self.token.clone())
+            Some(Box::new(self.token.clone()))
         } else {
             None
         };
@@ -1578,8 +1578,8 @@ impl<'a> Parser<'a> {
             token::Interpolated(token::NtPath(_)) => Some(try!(self.bump_and_get())),
             _ => None,
         };
-        if let Some(token::Interpolated(token::NtPath(box path))) = found {
-            return Ok(path);
+        if let Some(token::Interpolated(token::NtPath(path))) = found {
+            return Ok(*path);
         }
 
         let lo = self.span.lo;

src/libsyntax/print/pprust.rs

@@ -188,7 +188,7 @@ pub fn to_string<F>(f: F) -> String where
     F: FnOnce(&mut State) -> io::Result<()>,
 {
     use std::raw::TraitObject;
-    let mut s = rust_printer(box Vec::new());
+    let mut s = rust_printer(Box::new(Vec::new()));
     f(&mut s).unwrap();
     eof(&mut s.s).unwrap();
     let wr = unsafe {

src/libsyntax/ptr.rs

@@ -52,7 +52,7 @@ pub struct P<T> {
 /// Construct a `P<T>` from a `T` value.
 pub fn P<T: 'static>(value: T) -> P<T> {
     P {
-        ptr: box value
+        ptr: Box::new(value)
     }
 }