From 8bbf83b62a901039ea9e5e6a92b664f2d3c72b9c Mon Sep 17 00:00:00 2001
From: Michael Sullivan <sully@msully.net>
Date: Tue, 4 Jun 2013 15:14:56 -0700
Subject: [PATCH] Clean up a handful of build warnings.

---
 src/libextra/sync.rs                   |  1 -
 src/librustc/metadata/creader.rs       |  2 +-
 src/librustc/metadata/csearch.rs       |  6 ++--
 src/librustc/metadata/decoder.rs       | 23 ++++++++-------
 src/librustc/metadata/encoder.rs       |  3 +-
 src/librustc/middle/kind.rs            |  1 -
 src/librustc/middle/resolve.rs         | 39 ++++++++++++--------------
 src/librustc/middle/trans/base.rs      |  4 +--
 src/librustc/middle/trans/common.rs    |  2 +-
 src/librustc/middle/trans/debuginfo.rs |  4 +--
 src/librustc/util/ppaux.rs             |  2 +-
 src/librustpkg/rustpkg.rc              |  6 ++--
 src/librustpkg/util.rs                 |  2 --
 src/libsyntax/ext/expand.rs            |  2 +-
 src/libsyntax/ext/fmt.rs               | 10 +++----
 src/libsyntax/ext/quote.rs             |  4 +--
 src/libsyntax/ext/source_util.rs       |  2 +-
 src/libsyntax/ext/tt/transcribe.rs     |  4 +--
 src/libsyntax/parse/common.rs          |  2 +-
 src/libsyntax/parse/parser.rs          |  2 +-
 20 files changed, 56 insertions(+), 65 deletions(-)

diff --git a/src/libextra/sync.rs b/src/libextra/sync.rs
index 8f09ddea9ba..28a5e5382be 100644
--- a/src/libextra/sync.rs
+++ b/src/libextra/sync.rs
@@ -19,7 +19,6 @@ use core::prelude::*;
 
 use core::borrow;
 use core::comm;
-use core::ptr;
 use core::task;
 use core::unstable::sync::{Exclusive, exclusive};
 use core::util;
diff --git a/src/librustc/metadata/creader.rs b/src/librustc/metadata/creader.rs
index 546c516c287..c383e03367b 100644
--- a/src/librustc/metadata/creader.rs
+++ b/src/librustc/metadata/creader.rs
@@ -303,7 +303,7 @@ fn resolve_crate_deps(e: @mut Env, cdata: @~[u8]) -> cstore::cnum_map {
     // The map from crate numbers in the crate we're resolving to local crate
     // numbers
     let mut cnum_map = HashMap::new();
-    for decoder::get_crate_deps(e.intr, cdata).each |dep| {
+    for decoder::get_crate_deps(cdata).each |dep| {
         let extrn_cnum = dep.cnum;
         let cname = dep.name;
         let cname_str = token::ident_to_str(&dep.name);
diff --git a/src/librustc/metadata/csearch.rs b/src/librustc/metadata/csearch.rs
index 2a2419b0e30..955f07ed9c3 100644
--- a/src/librustc/metadata/csearch.rs
+++ b/src/librustc/metadata/csearch.rs
@@ -69,7 +69,7 @@ pub fn each_path(cstore: @mut cstore::CStore,
 pub fn get_item_path(tcx: ty::ctxt, def: ast::def_id) -> ast_map::path {
     let cstore = tcx.cstore;
     let cdata = cstore::get_crate_data(cstore, def.crate);
-    let path = decoder::get_item_path(cstore.intr, cdata, def.node);
+    let path = decoder::get_item_path(cdata, def.node);
 
     // FIXME #1920: This path is not always correct if the crate is not linked
     // into the root namespace.
@@ -91,7 +91,7 @@ pub fn maybe_get_item_ast(tcx: ty::ctxt, def: ast::def_id,
                        -> found_ast {
     let cstore = tcx.cstore;
     let cdata = cstore::get_crate_data(cstore, def.crate);
-    decoder::maybe_get_item_ast(cstore.intr, cdata, tcx, def.node,
+    decoder::maybe_get_item_ast(cdata, tcx, def.node,
                                 decode_inlined_item)
 }
 
@@ -149,7 +149,7 @@ pub fn get_supertraits(tcx: ty::ctxt, def: ast::def_id) -> ~[@ty::TraitRef] {
 pub fn get_type_name_if_impl(cstore: @mut cstore::CStore, def: ast::def_id)
                           -> Option<ast::ident> {
     let cdata = cstore::get_crate_data(cstore, def.crate);
-    decoder::get_type_name_if_impl(cstore.intr, cdata, def.node)
+    decoder::get_type_name_if_impl(cdata, def.node)
 }
 
 pub fn get_static_methods_if_impl(cstore: @mut cstore::CStore,
diff --git a/src/librustc/metadata/decoder.rs b/src/librustc/metadata/decoder.rs
index baf93416379..a6af5ca6e36 100644
--- a/src/librustc/metadata/decoder.rs
+++ b/src/librustc/metadata/decoder.rs
@@ -288,7 +288,7 @@ fn enum_variant_ids(item: ebml::Doc, cdata: cmd) -> ~[ast::def_id] {
     return ids;
 }
 
-fn item_path(intr: @ident_interner, item_doc: ebml::Doc) -> ast_map::path {
+fn item_path(item_doc: ebml::Doc) -> ast_map::path {
     let path_doc = reader::get_doc(item_doc, tag_path);
 
     let len_doc = reader::get_doc(path_doc, tag_path_len);
@@ -491,7 +491,7 @@ pub fn _each_path(intr: @ident_interner,
     for reader::tagged_docs(items_data, tag_items_data_item) |item_doc| {
         if !broken {
             let path = ast_map::path_to_str_with_sep(
-                item_path(intr, item_doc), ~"::", intr);
+                item_path(item_doc), "::", intr);
             let path_is_empty = path.is_empty();
             if !path_is_empty {
                 // Extract the def ID.
@@ -575,9 +575,9 @@ pub fn each_path(intr: @ident_interner,
     _each_path(intr, cdata, get_crate_data, f)
 }
 
-pub fn get_item_path(intr: @ident_interner, cdata: cmd, id: ast::node_id)
+pub fn get_item_path(cdata: cmd, id: ast::node_id)
     -> ast_map::path {
-    item_path(intr, lookup_item(id, cdata.data))
+    item_path(lookup_item(id, cdata.data))
 }
 
 pub type decode_inlined_item<'self> = &'self fn(
@@ -586,14 +586,14 @@ pub type decode_inlined_item<'self> = &'self fn(
     path: ast_map::path,
     par_doc: ebml::Doc) -> Option<ast::inlined_item>;
 
-pub fn maybe_get_item_ast(intr: @ident_interner, cdata: cmd, tcx: ty::ctxt,
+pub fn maybe_get_item_ast(cdata: cmd, tcx: ty::ctxt,
                           id: ast::node_id,
                           decode_inlined_item: decode_inlined_item)
                        -> csearch::found_ast {
     debug!("Looking up item: %d", id);
     let item_doc = lookup_item(id, cdata.data);
     let path = {
-        let item_path = item_path(intr, item_doc);
+        let item_path = item_path(item_doc);
         vec::to_owned(item_path.init())
     };
     match decode_inlined_item(cdata, tcx, copy path, item_doc) {
@@ -835,8 +835,7 @@ pub fn get_supertraits(cdata: cmd, id: ast::node_id, tcx: ty::ctxt)
     return results;
 }
 
-pub fn get_type_name_if_impl(intr: @ident_interner,
-                             cdata: cmd,
+pub fn get_type_name_if_impl(cdata: cmd,
                              node_id: ast::node_id) -> Option<ast::ident> {
     let item = lookup_item(node_id, cdata.data);
     if item_family(item) != Impl {
@@ -1086,7 +1085,7 @@ pub struct crate_dep {
     hash: @~str
 }
 
-pub fn get_crate_deps(intr: @ident_interner, data: @~[u8]) -> ~[crate_dep] {
+pub fn get_crate_deps(data: @~[u8]) -> ~[crate_dep] {
     let mut deps: ~[crate_dep] = ~[];
     let cratedoc = reader::Doc(data);
     let depsdoc = reader::get_doc(cratedoc, tag_crate_deps);
@@ -1104,10 +1103,10 @@ pub fn get_crate_deps(intr: @ident_interner, data: @~[u8]) -> ~[crate_dep] {
     return deps;
 }
 
-fn list_crate_deps(intr: @ident_interner, data: @~[u8], out: @io::Writer) {
+fn list_crate_deps(data: @~[u8], out: @io::Writer) {
     out.write_str("=External Dependencies=\n");
 
-    for get_crate_deps(intr, data).each |dep| {
+    for get_crate_deps(data).each |dep| {
         out.write_str(
             fmt!("%d %s-%s-%s\n",
                  dep.cnum, *token::ident_to_str(&dep.name), *dep.hash, *dep.vers));
@@ -1151,7 +1150,7 @@ pub fn list_crate_metadata(intr: @ident_interner, bytes: @~[u8],
     let hash = get_crate_hash(bytes);
     let md = reader::Doc(bytes);
     list_crate_attributes(intr, md, *hash, out);
-    list_crate_deps(intr, bytes, out);
+    list_crate_deps(bytes, out);
 }
 
 // Translates a def_id from an external crate to a def_id for the current
diff --git a/src/librustc/metadata/encoder.rs b/src/librustc/metadata/encoder.rs
index 2365897c4d7..c696aacb449 100644
--- a/src/librustc/metadata/encoder.rs
+++ b/src/librustc/metadata/encoder.rs
@@ -132,8 +132,7 @@ struct entry<T> {
     pos: uint
 }
 
-fn add_to_index(ecx: @EncodeContext,
-                ebml_w: &mut writer::Encoder,
+fn add_to_index(ebml_w: &mut writer::Encoder,
                 path: &[ident],
                 index: &mut ~[entry<~str>],
                 name: ident) {
diff --git a/src/librustc/middle/kind.rs b/src/librustc/middle/kind.rs
index 48983dcadc8..736e98dc6ec 100644
--- a/src/librustc/middle/kind.rs
+++ b/src/librustc/middle/kind.rs
@@ -12,7 +12,6 @@ use core::prelude::*;
 
 use middle::freevars::freevar_entry;
 use middle::freevars;
-use middle::pat_util;
 use middle::ty;
 use middle::typeck;
 use util::ppaux::{Repr, ty_to_str};
diff --git a/src/librustc/middle/resolve.rs b/src/librustc/middle/resolve.rs
index f1ebe88db0c..184ed441694 100644
--- a/src/librustc/middle/resolve.rs
+++ b/src/librustc/middle/resolve.rs
@@ -725,7 +725,6 @@ pub struct PrimitiveTypeTable {
 
 impl PrimitiveTypeTable {
     pub fn intern(&mut self,
-                  intr: @ident_interner,
                   string: &str,
                   primitive_type: prim_ty) {
         let ident = token::str_to_ident(string);
@@ -733,27 +732,27 @@ impl PrimitiveTypeTable {
     }
 }
 
-pub fn PrimitiveTypeTable(intr: @ident_interner) -> PrimitiveTypeTable {
+pub fn PrimitiveTypeTable() -> PrimitiveTypeTable {
     let mut table = PrimitiveTypeTable {
         primitive_types: HashMap::new()
     };
 
-    table.intern(intr, "bool",    ty_bool);
-    table.intern(intr, "char",    ty_int(ty_char));
-    table.intern(intr, "float",   ty_float(ty_f));
-    table.intern(intr, "f32",     ty_float(ty_f32));
-    table.intern(intr, "f64",     ty_float(ty_f64));
-    table.intern(intr, "int",     ty_int(ty_i));
-    table.intern(intr, "i8",      ty_int(ty_i8));
-    table.intern(intr, "i16",     ty_int(ty_i16));
-    table.intern(intr, "i32",     ty_int(ty_i32));
-    table.intern(intr, "i64",     ty_int(ty_i64));
-    table.intern(intr, "str",     ty_str);
-    table.intern(intr, "uint",    ty_uint(ty_u));
-    table.intern(intr, "u8",      ty_uint(ty_u8));
-    table.intern(intr, "u16",     ty_uint(ty_u16));
-    table.intern(intr, "u32",     ty_uint(ty_u32));
-    table.intern(intr, "u64",     ty_uint(ty_u64));
+    table.intern("bool",    ty_bool);
+    table.intern("char",    ty_int(ty_char));
+    table.intern("float",   ty_float(ty_f));
+    table.intern("f32",     ty_float(ty_f32));
+    table.intern("f64",     ty_float(ty_f64));
+    table.intern("int",     ty_int(ty_i));
+    table.intern("i8",      ty_int(ty_i8));
+    table.intern("i16",     ty_int(ty_i16));
+    table.intern("i32",     ty_int(ty_i32));
+    table.intern("i64",     ty_int(ty_i64));
+    table.intern("str",     ty_str);
+    table.intern("uint",    ty_uint(ty_u));
+    table.intern("u8",      ty_uint(ty_u8));
+    table.intern("u16",     ty_uint(ty_u16));
+    table.intern("u32",     ty_uint(ty_u32));
+    table.intern("u64",     ty_uint(ty_u64));
 
     return table;
 }
@@ -806,7 +805,7 @@ pub fn Resolver(session: Session,
         self_ident: special_idents::self_,
         type_self_ident: special_idents::type_self,
 
-        primitive_type_table: @PrimitiveTypeTable(token::get_ident_interner()),
+        primitive_type_table: @PrimitiveTypeTable(),
 
         namespaces: ~[ TypeNS, ValueNS ],
 
@@ -2942,8 +2941,6 @@ impl Resolver {
                                  module_: @mut Module,
                                  module_path: &[ident])
                                  -> ResolveResult<ModulePrefixResult> {
-        let interner = token::get_ident_interner();
-
         // Start at the current module if we see `self` or `super`, or at the
         // top of the crate otherwise.
         let mut containing_module;
diff --git a/src/librustc/middle/trans/base.rs b/src/librustc/middle/trans/base.rs
index ba88fe09e70..2d1dd34af4a 100644
--- a/src/librustc/middle/trans/base.rs
+++ b/src/librustc/middle/trans/base.rs
@@ -3070,7 +3070,7 @@ pub fn trans_crate(sess: session::Session,
         lib::llvm::associate_type(tn, @"tydesc", tydesc_type);
         let crate_map = decl_crate_map(sess, link_meta, llmod);
         let dbg_cx = if sess.opts.debuginfo {
-            Some(debuginfo::mk_ctxt(copy llmod_id, token::get_ident_interner()))
+            Some(debuginfo::mk_ctxt(copy llmod_id))
         } else {
             None
         };
@@ -3105,7 +3105,7 @@ pub fn trans_crate(sess: session::Session,
               lltypes: @mut HashMap::new(),
               llsizingtypes: @mut HashMap::new(),
               adt_reprs: @mut HashMap::new(),
-              names: new_namegen(token::get_ident_interner()),
+              names: new_namegen(),
               next_addrspace: new_addrspace_gen(),
               symbol_hasher: symbol_hasher,
               type_hashcodes: @mut HashMap::new(),
diff --git a/src/librustc/middle/trans/common.rs b/src/librustc/middle/trans/common.rs
index 8831cde1105..774d2df1ca3 100644
--- a/src/librustc/middle/trans/common.rs
+++ b/src/librustc/middle/trans/common.rs
@@ -60,7 +60,7 @@ use syntax::abi::{X86, X86_64, Arm, Mips};
 // NOTE: this thunk is totally pointless now that we're not passing
 // interners around...
 pub type namegen = @fn(s: &str) -> ident;
-pub fn new_namegen(intr: @ident_interner) -> namegen {
+pub fn new_namegen() -> namegen {
     let f: @fn(s: &str) -> ident = |prefix| {
         token::str_to_ident(fmt!("%s_%u",
                                  prefix,
diff --git a/src/librustc/middle/trans/debuginfo.rs b/src/librustc/middle/trans/debuginfo.rs
index 88b7f7e70de..eb173fb2c44 100644
--- a/src/librustc/middle/trans/debuginfo.rs
+++ b/src/librustc/middle/trans/debuginfo.rs
@@ -108,10 +108,10 @@ pub struct DebugContext {
     crate_file: ~str
 }
 
-pub fn mk_ctxt(crate: ~str, intr: @ident_interner) -> DebugContext {
+pub fn mk_ctxt(crate: ~str) -> DebugContext {
     DebugContext {
         llmetadata: @mut HashMap::new(),
-        names: new_namegen(intr),
+        names: new_namegen(),
         crate_file: crate
     }
 }
diff --git a/src/librustc/util/ppaux.rs b/src/librustc/util/ppaux.rs
index 2ec4cc65528..d4f1e42d5ff 100644
--- a/src/librustc/util/ppaux.rs
+++ b/src/librustc/util/ppaux.rs
@@ -654,7 +654,7 @@ impl Repr for ty::Method {
 }
 
 impl Repr for ast::ident {
-    fn repr(&self, tcx: ctxt) -> ~str {
+    fn repr(&self, _tcx: ctxt) -> ~str {
         copy *token::ident_to_str(self)
     }
 }
diff --git a/src/librustpkg/rustpkg.rc b/src/librustpkg/rustpkg.rc
index 005f2de3f42..5bc52b1eb35 100644
--- a/src/librustpkg/rustpkg.rc
+++ b/src/librustpkg/rustpkg.rc
@@ -649,9 +649,9 @@ impl PkgSrc {
         if self.libs.is_empty() && self.mains.is_empty()
             && self.tests.is_empty() && self.benchs.is_empty() {
 
-            util::note(~"Couldn't infer any crates to build.\n\
-                         Try naming a crate `main.rs`, `lib.rs`, \
-                         `test.rs`, or `bench.rs`.");
+            util::note("Couldn't infer any crates to build.\n\
+                        Try naming a crate `main.rs`, `lib.rs`, \
+                        `test.rs`, or `bench.rs`.");
             cond.raise(copy self.id);
         }
 
diff --git a/src/librustpkg/util.rs b/src/librustpkg/util.rs
index 33745e85387..84af0ce5095 100644
--- a/src/librustpkg/util.rs
+++ b/src/librustpkg/util.rs
@@ -14,8 +14,6 @@ use rustc::driver::{driver, session};
 use rustc::metadata::filesearch;
 use extra::getopts::groups::getopts;
 use extra::term;
-#[cfg(not(test))]
-use extra::getopts;
 use syntax::ast_util::*;
 use syntax::codemap::{dummy_sp, spanned};
 use syntax::codemap::dummy_spanned;
diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index 96a0461de1e..e1f31b83524 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -394,7 +394,7 @@ pub fn new_name_finder() -> @Visitor<@mut ~[ast::ident]> {
 }
 
 pub fn expand_block(extsbox: @mut SyntaxEnv,
-                    cx: @ExtCtxt,
+                    _cx: @ExtCtxt,
                     blk: &blk_,
                     sp: span,
                     fld: @ast_fold,
diff --git a/src/libsyntax/ext/fmt.rs b/src/libsyntax/ext/fmt.rs
index 67d3f84d1ff..6d0c499f2c8 100644
--- a/src/libsyntax/ext/fmt.rs
+++ b/src/libsyntax/ext/fmt.rs
@@ -53,7 +53,7 @@ pub fn expand_syntax_ext(cx: @ExtCtxt, sp: span, tts: &[ast::token_tree])
 fn pieces_to_expr(cx: @ExtCtxt, sp: span,
                   pieces: ~[Piece], args: ~[@ast::expr])
    -> @ast::expr {
-    fn make_path_vec(cx: @ExtCtxt, ident: &str) -> ~[ast::ident] {
+    fn make_path_vec(ident: &str) -> ~[ast::ident] {
         return ~[str_to_ident("std"),
                  str_to_ident("unstable"),
                  str_to_ident("extfmt"),
@@ -61,7 +61,7 @@ fn pieces_to_expr(cx: @ExtCtxt, sp: span,
                  str_to_ident(ident)];
     }
     fn make_rt_path_expr(cx: @ExtCtxt, sp: span, nm: &str) -> @ast::expr {
-        let path = make_path_vec(cx, nm);
+        let path = make_path_vec(nm);
         cx.expr_path(cx.path_global(sp, path))
     }
     // Produces an AST expression that represents a RT::conv record,
@@ -90,7 +90,7 @@ fn pieces_to_expr(cx: @ExtCtxt, sp: span,
               }
               CountIs(c) => {
                 let count_lit = cx.expr_uint(sp, c as uint);
-                let count_is_path = make_path_vec(cx, "CountIs");
+                let count_is_path = make_path_vec("CountIs");
                 let count_is_args = ~[count_lit];
                 return cx.expr_call_global(sp, count_is_path, count_is_args);
               }
@@ -114,7 +114,7 @@ fn pieces_to_expr(cx: @ExtCtxt, sp: span,
                          ty_expr: @ast::expr) -> @ast::expr {
             cx.expr_struct(
                 sp,
-                cx.path_global(sp, make_path_vec(cx, "Conv")),
+                cx.path_global(sp, make_path_vec("Conv")),
                 ~[
                     cx.field_imm(sp, str_to_ident("flags"), flags_expr),
                     cx.field_imm(sp, str_to_ident("width"), width_expr),
@@ -133,7 +133,7 @@ fn pieces_to_expr(cx: @ExtCtxt, sp: span,
     fn make_conv_call(cx: @ExtCtxt, sp: span, conv_type: &str, cnv: &Conv,
                       arg: @ast::expr, buf: @ast::expr) -> @ast::expr {
         let fname = ~"conv_" + conv_type;
-        let path = make_path_vec(cx, fname);
+        let path = make_path_vec(fname);
         let cnv_expr = make_rt_conv_expr(cx, sp, cnv);
         let args = ~[cnv_expr, arg, buf];
         cx.expr_call_global(arg.span, path, args)
diff --git a/src/libsyntax/ext/quote.rs b/src/libsyntax/ext/quote.rs
index 062532afef8..09c9dd922c7 100644
--- a/src/libsyntax/ext/quote.rs
+++ b/src/libsyntax/ext/quote.rs
@@ -92,7 +92,7 @@ pub mod rt {
 
     impl<'self> ToSource for &'self [@ast::item] {
         fn to_source(&self) -> ~str {
-            str::connect(self.map(|i| i.to_source()), ~"\n\n")
+            str::connect(self.map(|i| i.to_source()), "\n\n")
         }
     }
 
@@ -104,7 +104,7 @@ pub mod rt {
 
     impl<'self> ToSource for &'self [@ast::Ty] {
         fn to_source(&self) -> ~str {
-            str::connect(self.map(|i| i.to_source()), ~", ")
+            str::connect(self.map(|i| i.to_source()), ", ")
         }
     }
 
diff --git a/src/libsyntax/ext/source_util.rs b/src/libsyntax/ext/source_util.rs
index fcdfb0a6ba7..4d1e9a31821 100644
--- a/src/libsyntax/ext/source_util.rs
+++ b/src/libsyntax/ext/source_util.rs
@@ -12,7 +12,7 @@ use core::prelude::*;
 
 use ast;
 use codemap;
-use codemap::{FileMap, Loc, Pos, ExpandedFrom, span};
+use codemap::{Pos, ExpandedFrom, span};
 use codemap::{CallInfo, NameAndSpan};
 use ext::base::*;
 use ext::base;
diff --git a/src/libsyntax/ext/tt/transcribe.rs b/src/libsyntax/ext/tt/transcribe.rs
index f0b078603db..f8a783c568a 100644
--- a/src/libsyntax/ext/tt/transcribe.rs
+++ b/src/libsyntax/ext/tt/transcribe.rs
@@ -132,7 +132,7 @@ enum lis {
 }
 
 fn lockstep_iter_size(t: &token_tree, r: &mut TtReader) -> lis {
-    fn lis_merge(lhs: lis, rhs: lis, r: &mut TtReader) -> lis {
+    fn lis_merge(lhs: lis, rhs: lis) -> lis {
         match lhs {
           lis_unconstrained => copy rhs,
           lis_contradiction(_) => copy lhs,
@@ -154,7 +154,7 @@ fn lockstep_iter_size(t: &token_tree, r: &mut TtReader) -> lis {
       tt_delim(ref tts) | tt_seq(_, ref tts, _, _) => {
         vec::foldl(lis_unconstrained, *tts, |lis, tt| {
             let lis2 = lockstep_iter_size(tt, r);
-            lis_merge(lis, lis2, r)
+            lis_merge(lis, lis2)
         })
       }
       tt_tok(*) => lis_unconstrained,
diff --git a/src/libsyntax/parse/common.rs b/src/libsyntax/parse/common.rs
index 9fb69821953..6027d3b07f2 100644
--- a/src/libsyntax/parse/common.rs
+++ b/src/libsyntax/parse/common.rs
@@ -49,7 +49,7 @@ pub fn seq_sep_none() -> SeqSep {
 
 // maps any token back to a string. not necessary if you know it's
 // an identifier....
-pub fn token_to_str(reader: @reader, token: &token::Token) -> ~str {
+pub fn token_to_str(token: &token::Token) -> ~str {
     token::to_str(get_ident_interner(), token)
 }
 
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index a6b67ccea9d..300e5adcf92 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -2573,7 +2573,7 @@ impl Parser {
     fn parse_let(&self) -> @decl {
         let is_mutbl = self.eat_keyword(keywords::Mut);
         let lo = self.span.lo;
-        let mut local = self.parse_local(is_mutbl);
+        let local = self.parse_local(is_mutbl);
         while self.eat(&token::COMMA) {
             let _ = self.parse_local(is_mutbl);
             self.obsolete(*self.span, ObsoleteMultipleLocalDecl);