Replace more vector + (issue #2719)

src/libcore/vec.rs

@@ -1888,7 +1888,7 @@ mod tests {
         let mut results: [[int]/~]/~;
 
         results = []/~;
-        permute([]/~) {|v| results += [v]/~; }
+        permute([]/~) {|v| vec::push(results, v); }
         assert results == [[]/~]/~;
 
         results = []/~;

src/libsyntax/attr.rs

@@ -77,7 +77,7 @@ fn attr_meta(attr: ast::attribute) -> @ast::meta_item { @attr.node.value }
 // Get the meta_items from inside a vector of attributes
 fn attr_metas(attrs: [ast::attribute]/~) -> [@ast::meta_item]/~ {
     let mut mitems = []/~;
-    for attrs.each {|a| mitems += [attr_meta(a)]/~; }
+    for attrs.each {|a| vec::push(mitems, attr_meta(a)); }
     ret mitems;
 }
 
@@ -303,7 +303,7 @@ fn find_linkage_attrs(attrs: [ast::attribute]/~) -> [ast::attribute]/~ {
     let mut found = []/~;
     for find_attrs_by_name(attrs, "link").each {|attr|
         alt attr.node.value.node {
-          ast::meta_list(_, _) { found += [attr]/~ }
+          ast::meta_list(_, _) { vec::push(found, attr) }
           _ { #debug("ignoring link attribute that has incorrect type"); }
         }
     }

src/libsyntax/ext/auto_serialize.rs

@@ -103,12 +103,14 @@ fn expand(cx: ext_ctxt,
     vec::flat_map(in_items) {|in_item|
         alt in_item.node {
           ast::item_ty(ty, tps, _) {
-            [filter_attrs(in_item)]/~ + ty_fns(cx, in_item.ident, ty, tps)
+            vec::append([filter_attrs(in_item)]/~,
+                        ty_fns(cx, in_item.ident, ty, tps))
           }
 
           ast::item_enum(variants, tps, _) {
-            [filter_attrs(in_item)]/~ + enum_fns(cx, in_item.ident,
+            vec::append([filter_attrs(in_item)]/~,
-                                               in_item.span, variants, tps)
+                        enum_fns(cx, in_item.ident,
+                                 in_item.span, variants, tps))
           }
 
           _ {
@@ -126,7 +128,8 @@ impl helpers for ext_ctxt {
                    helper_name: str) -> @ast::path {
         let head = vec::init(base_path.idents);
         let tail = vec::last(base_path.idents);
-        self.path(base_path.span, head + [@(helper_name + "_" + *tail)]/~)
+        self.path(base_path.span,
+                  vec::append(head, [@(helper_name + "_" + *tail)]/~))
     }
 
     fn path(span: span, strs: [ast::ident]/~) -> @ast::path {
@@ -301,7 +304,7 @@ fn ser_path(cx: ext_ctxt, tps: ser_tps_map, path: @ast::path,
     [cx.stmt(
         cx.expr(
             path.span,
-            ast::expr_call(callee, [s, v]/~ + ty_args, false)))]/~
+            ast::expr_call(callee, vec::append([s, v]/~, ty_args), false)))]/~
 }
 
 fn ser_variant(cx: ext_ctxt,
@@ -502,15 +505,15 @@ fn mk_ser_fn(cx: ext_ctxt, span: span, name: ast::ident,
 
 
     let ser_inputs: [ast::arg]/~ =
-        [{mode: ast::expl(ast::by_ref),
+        vec::append([{mode: ast::expl(ast::by_ref),
-          ty: cx.ty_path(span, [@"__S"]/~, []/~),
+                      ty: cx.ty_path(span, [@"__S"]/~, []/~),
-          ident: @"__s",
+                      ident: @"__s",
-          id: cx.next_id()},
+                      id: cx.next_id()},
-         {mode: ast::expl(ast::by_ref),
+                     {mode: ast::expl(ast::by_ref),
-          ty: v_ty,
+                      ty: v_ty,
-          ident: @"__v",
+                      ident: @"__v",
-          id: cx.next_id()}]/~
+                      id: cx.next_id()}]/~,
-        + tp_inputs;
+                    tp_inputs);
 
     let tps_map = map::str_hash();
     vec::iter2(tps, tp_inputs) {|tp, arg|
@@ -531,10 +534,10 @@ fn mk_ser_fn(cx: ext_ctxt, span: span, name: ast::ident,
                                     []/~))]/~;
 
     let ser_tps: [ast::ty_param]/~ =
-        [{ident: @"__S",
+        vec::append([{ident: @"__S",
-          id: cx.next_id(),
+                      id: cx.next_id(),
-          bounds: ser_bnds}]/~ +
+                      bounds: ser_bnds}]/~,
-        vec::map(tps) {|tp| cx.clone_ty_param(tp) };
+                    vec::map(tps) {|tp| cx.clone_ty_param(tp) });
 
     let ser_output: @ast::ty = @{id: cx.next_id(),
                                  node: ast::ty_nil,
@@ -575,7 +578,8 @@ fn deser_path(cx: ext_ctxt, tps: deser_tps_map, path: @ast::path,
         cx.lambda(cx.expr_blk(dv_expr))
     };
 
-    cx.expr(path.span, ast::expr_call(callee, [d]/~ + ty_args, false))
+    cx.expr(path.span, ast::expr_call(callee, vec::append([d]/~, ty_args),
+                                      false))
 }
 
 fn deser_lambda(cx: ext_ctxt, tps: deser_tps_map, ty: @ast::ty,
@@ -712,11 +716,11 @@ fn mk_deser_fn(cx: ext_ctxt, span: span,
     #debug["tp_inputs = %?", tp_inputs];
 
     let deser_inputs: [ast::arg]/~ =
-        [{mode: ast::expl(ast::by_ref),
+        vec::append([{mode: ast::expl(ast::by_ref),
-          ty: cx.ty_path(span, [@"__D"]/~, []/~),
+                      ty: cx.ty_path(span, [@"__D"]/~, []/~),
-          ident: @"__d",
+                      ident: @"__d",
-          id: cx.next_id()}]/~
+                      id: cx.next_id()}]/~,
-        + tp_inputs;
+                    tp_inputs);
 
     let tps_map = map::str_hash();
     vec::iter2(tps, tp_inputs) {|tp, arg|
@@ -740,7 +744,9 @@ fn mk_deser_fn(cx: ext_ctxt, span: span,
           id: cx.next_id(),
           bounds: deser_bnds}]/~ + vec::map(tps) {|tp|
         let cloned = cx.clone_ty_param(tp);
-        {bounds: @(*cloned.bounds + [ast::bound_copy]/~) with cloned}
+        {bounds: @(vec::append(*cloned.bounds,
+                               [ast::bound_copy]/~))
+         with cloned}
     };
 
     let deser_blk = cx.expr_blk(f(cx, tps_map, #ast(expr){__d}));

src/libsyntax/ext/build.rs

@@ -82,7 +82,7 @@ fn mk_rec_e(cx: ext_ctxt, sp: span,
         let val = field.ex;
         let astfield =
             {node: {mutbl: ast::m_imm, ident: ident, expr: val}, span: sp};
-        astfields += [astfield]/~;
+        vec::push(astfields, astfield);
     }
     let recexpr = ast::expr_rec(astfields, option::none::<@ast::expr>);
     ret @{id: cx.next_id(), node: recexpr, span: sp};

src/libsyntax/ext/fmt.rs

@@ -60,7 +60,7 @@ fn pieces_to_expr(cx: ext_ctxt, sp: span,
                   flag_sign_always { fstr = "flag_sign_always"; }
                   flag_alternate { fstr = "flag_alternate"; }
                 }
-                flagexprs += [make_rt_path_expr(cx, sp, @fstr)]/~;
+                vec::push(flagexprs, make_rt_path_expr(cx, sp, @fstr));
             }
             ret mk_uniq_vec_e(cx, sp, flagexprs);
         }

src/libsyntax/ext/simplext.rs

@@ -104,7 +104,7 @@ fn option_flatten_map<T: copy, U: copy>(f: fn@(T) -> option<U>, v: [T]/~) ->
    option<[U]/~> {
     let mut res = []/~;
     for v.each {|elem|
-        alt f(elem) { none { ret none; } some(fv) { res += [fv]/~; } }
+        alt f(elem) { none { ret none; } some(fv) { vec::push(res, fv); } }
     }
     ret some(res);
 }
@@ -309,8 +309,8 @@ fn transcribe_exprs(cx: ext_ctxt, b: bindings, idx_path: @mut [uint]/~,
                 /* Whew, we now know how how many times to repeat */
                 let mut idx: uint = 0u;
                 while idx < rc {
-                    *idx_path += [idx]/~;
+                    vec::push(*idx_path, idx);
-                    res += [recur(repeat_me)]/~; // whew!
+                    vec::push(res, recur(repeat_me)); // whew!
                     vec::pop(*idx_path);
                     idx += 1u;
                 }
@@ -318,7 +318,7 @@ fn transcribe_exprs(cx: ext_ctxt, b: bindings, idx_path: @mut [uint]/~,
             }
           }
         }
-        res += vec::map(post, recur);
+        res = vec::append(res, vec::map(post, recur));
         ret res;
       }
     }
@@ -718,9 +718,9 @@ fn add_new_extension(cx: ext_ctxt, sp: span, arg: ast::mac_arg,
                       none { cx.span_fatal(mac.span,
                                            "macro must have arguments")}
                     };
-                    clauses +=
+                    vec::push(clauses,
-                        [@{params: pattern_to_selectors(cx, arg),
+                              @{params: pattern_to_selectors(cx, arg),
-                           body: elts[1u]}]/~;
+                                body: elts[1u]});
 
                     // FIXME (#2251): check duplicates (or just simplify
                     // the macro arg situation)

src/libsyntax/parse.rs

@@ -84,7 +84,7 @@ fn parse_crate_from_crate_file(input: str, cfg: ast::crate_cfg,
     ret @ast_util::respan(ast_util::mk_sp(lo, hi),
                           {directives: cdirs,
                            module: m,
-                           attrs: crate_attrs + attrs,
+                           attrs: vec::append(crate_attrs, attrs),
                            config: /* FIXME (#2543) */ copy p.cfg});
 }
 

src/libsyntax/parse/attr.rs

@@ -21,8 +21,8 @@ impl parser_attr for parser {
                 self.bump();
                 let first_attr =
                     self.parse_attribute_naked(ast::attr_outer, lo);
-                ret some(left([first_attr]/~ +
+                ret some(left(vec::append([first_attr]/~,
-                              self.parse_outer_attributes()));
+                                          self.parse_outer_attributes())));
             } else if !(self.look_ahead(1u) == token::LT
                         || self.look_ahead(1u) == token::LBRACKET
                         || self.look_ahead(1u) == token::POUND
@@ -38,7 +38,7 @@ impl parser_attr for parser {
         let mut attrs: [ast::attribute]/~ = []/~;
         while self.token == token::POUND
             && self.look_ahead(1u) == token::LBRACKET {
-            attrs += [self.parse_attribute(ast::attr_outer)]/~;
+            vec::push(attrs, self.parse_attribute(ast::attr_outer));
         }
         ret attrs;
     }
@@ -76,13 +76,13 @@ impl parser_attr for parser {
             let attr = self.parse_attribute(ast::attr_inner);
             if self.token == token::SEMI {
                 self.bump();
-                inner_attrs += [attr]/~;
+                vec::push(inner_attrs, attr);
             } else {
                 // It's not really an inner attribute
                 let outer_attr =
                     spanned(attr.span.lo, attr.span.hi,
                             {style: ast::attr_outer, value: attr.node.value});
-                next_outer_attrs += [outer_attr]/~;
+                vec::push(next_outer_attrs, outer_attr);
                 break;
             }
         }

src/libsyntax/parse/eval.rs

@@ -28,8 +28,8 @@ fn eval_crate_directives_to_mod(cx: ctx, cdirs: [@ast::crate_directive]/~,
     let mut view_items: [@ast::view_item]/~ = []/~;
     let mut items: [@ast::item]/~ = []/~;
     eval_crate_directives(cx, cdirs, prefix, view_items, items);
-    ret ({view_items: view_items + cview_items,
+    ret ({view_items: vec::append(view_items, cview_items),
-          items: items + citems},
+          items: vec::append(items, citems)},
          cattrs);
 }
 
@@ -100,7 +100,7 @@ fn eval_crate_directive(cx: ctx, cdir: @ast::crate_directive, prefix: str,
         let (p0, r0) =
             new_parser_etc_from_file(cx.sess, cx.cfg, full_path, SOURCE_FILE);
         let inner_attrs = p0.parse_inner_attrs_and_next();
-        let mod_attrs = attrs + inner_attrs.inner;
+        let mod_attrs = vec::append(attrs, inner_attrs.inner);
         let first_item_outer_attrs = inner_attrs.next;
         let m0 = p0.parse_mod_items(token::EOF, first_item_outer_attrs);
 
@@ -110,7 +110,7 @@ fn eval_crate_directive(cx: ctx, cdir: @ast::crate_directive, prefix: str,
         // Thread defids, chpos and byte_pos through the parsers
         cx.sess.chpos = r0.chpos;
         cx.sess.byte_pos = cx.sess.byte_pos + r0.pos;
-        items += [i]/~;
+        vec::push(items, i);
       }
       ast::cdir_dir_mod(id, cdirs, attrs) {
         let path = cdir_path_opt(id, attrs);
@@ -122,15 +122,15 @@ fn eval_crate_directive(cx: ctx, cdir: @ast::crate_directive, prefix: str,
             cx, cdirs, full_path, none);
         let i =
             @{ident: /* FIXME (#2543) */ copy id,
-              attrs: attrs + a0,
+              attrs: vec::append(attrs, a0),
               id: cx.sess.next_id,
               node: ast::item_mod(m0),
               vis: ast::public,
               span: cdir.span};
         cx.sess.next_id += 1;
-        items += [i]/~;
+        vec::push(items, i);
       }
-      ast::cdir_view_item(vi) { view_items += [vi]/~; }
+      ast::cdir_view_item(vi) { vec::push(view_items, vi); }
       ast::cdir_syntax(pth) { }
     }
 }

src/libsyntax/parse/parser.rs

@@ -1030,7 +1030,9 @@ class parser {
                 let blk = self.parse_fn_block_expr();
                 alt e.node {
                   expr_call(f, args, false) {
-                    e = pexpr(@{node: expr_call(f, args + [blk]/~, true)
+                    e = pexpr(@{node: expr_call(f,
+                                                vec::append(args, [blk]/~),
+                                                true)
                                 with *self.to_expr(e)});
                   }
                   _ {
@@ -1088,10 +1090,13 @@ class parser {
         ret alt self.token {
           token::LPAREN | token::LBRACE | token::LBRACKET {
             let ket = flip(self.token);
-            tt_delim([parse_tt_flat(self, true)]/~ +
+            tt_delim(vec::append(
-                     self.parse_seq_to_before_end(ket, seq_sep_none(),
+                [parse_tt_flat(self, true)]/~,
-                                                  {|p| p.parse_token_tree()})
+                vec::append(
-                     + [parse_tt_flat(self, true)]/~)
+                    self.parse_seq_to_before_end(
+                        ket, seq_sep_none(),
+                        {|p| p.parse_token_tree()}),
+                    [parse_tt_flat(self, true)]/~)))
           }
           _ { parse_tt_flat(self, false) }
         };
@@ -1357,7 +1362,7 @@ class parser {
             let b_arg = vec::last(args);
             let last = self.mk_expr(b_arg.span.lo, b_arg.span.hi,
                                     ctor(b_arg));
-            @{node: expr_call(f, vec::init(args) + [last]/~, true)
+            @{node: expr_call(f, vec::append(vec::init(args), [last]/~), true)
               with *call}
           }
           _ {
@@ -1655,7 +1660,7 @@ class parser {
               }
             }
 
-            let item_attrs = first_item_attrs + item_attrs;
+            let item_attrs = vec::append(first_item_attrs, item_attrs);
 
             alt self.parse_item(item_attrs, public) {
               some(i) {
@@ -1914,7 +1919,7 @@ class parser {
         let tps = self.parse_ty_params();
         let (decl, _) = self.parse_fn_decl(pur, {|p| p.parse_arg()});
         let (inner_attrs, body) = self.parse_inner_attrs_and_block(true);
-        let attrs = attrs + inner_attrs;
+        let attrs = vec::append(attrs, inner_attrs);
         @{ident: ident, attrs: attrs, tps: tps, decl: decl, body: body,
           id: self.get_id(), span: mk_sp(lo, body.span.hi),
           self_id: self.get_id(), vis: pr}
@@ -2026,7 +2031,7 @@ class parser {
               dtor_decl(blk, s) {
                 the_dtor = some((blk, s));
               }
-              members(mms) { ms += mms; }
+              members(mms) { ms = vec::append(ms, mms); }
             }
         }
         let actual_dtor = option::map(the_dtor) {|dtor|
@@ -2127,7 +2132,10 @@ class parser {
         let mut first = true;
         while self.token != term {
             let mut attrs = self.parse_outer_attributes();
-            if first { attrs = attrs_remaining + attrs; first = false; }
+            if first {
+                attrs = vec::append(attrs_remaining, attrs);
+                first = false;
+            }
             #debug["parse_mod_items: parse_item(attrs=%?)", attrs];
             let vis = self.parse_visibility(private);
             alt self.parse_item(attrs, vis) {
@@ -2206,7 +2214,8 @@ class parser {
         let mut items: [@foreign_item]/~ = []/~;
         let mut initial_attrs = attrs_remaining;
         while self.token != token::RBRACE {
-            let attrs = initial_attrs + self.parse_outer_attributes();
+            let attrs = vec::append(initial_attrs,
+                                    self.parse_outer_attributes());
             initial_attrs = []/~;
             vec::push(items, self.parse_foreign_item(attrs));
         }
@@ -2383,7 +2392,7 @@ class parser {
         } else { ret none; };
         some(self.mk_item(lo, self.last_span.hi, ident, item_, vis,
                           alt extra_attrs {
-                              some(as) { attrs + as }
+                              some(as) { vec::append(attrs, as) }
                               none { attrs }
                           }))
     }
@@ -2498,7 +2507,8 @@ class parser {
     fn parse_view(+first_item_attrs: [attribute]/~,
                   only_imports: bool) -> {attrs_remaining: [attribute]/~,
                                           view_items: [@view_item]/~} {
-        let mut attrs = first_item_attrs + self.parse_outer_attributes();
+        let mut attrs = vec::append(first_item_attrs,
+                                    self.parse_outer_attributes());
         let mut items = []/~;
         while if only_imports { self.is_keyword("import") }
         else { self.is_view_item() } {
@@ -2540,7 +2550,8 @@ class parser {
         crate_directive {
 
         // Collect the next attributes
-        let outer_attrs = first_outer_attr + self.parse_outer_attributes();
+        let outer_attrs = vec::append(first_outer_attr,
+                                      self.parse_outer_attributes());
         // In a crate file outer attributes are only going to apply to mods
         let expect_mod = vec::len(outer_attrs) > 0u;
 
@@ -2559,7 +2570,7 @@ class parser {
               token::LBRACE {
                 self.bump();
                 let inner_attrs = self.parse_inner_attrs_and_next();
-                let mod_attrs = outer_attrs + inner_attrs.inner;
+                let mod_attrs = vec::append(outer_attrs, inner_attrs.inner);
                 let next_outer_attr = inner_attrs.next;
                 let cdirs = self.parse_crate_directives(token::RBRACE,
                                                         next_outer_attr);