Remove remaining uses of `[]`. This time I tried to use deref coercions where possible.

6 files changed, 20 insertions, 20 deletions

diff --git a/src/libsyntax/parse/attr.rs b/src/libsyntax/parse/attr.rs
index 06e8728d236..a0e2b4dbf5a 100644
--- a/src/libsyntax/parse/attr.rs
+++ b/src/libsyntax/parse/attr.rs
@@ -94,7 +94,7 @@ impl<'a> ParserAttr for Parser<'a> {
             }
             _ => {
                 let token_str = self.this_token_to_string();
-                self.fatal(&format!("expected `#`, found `{}`", token_str)[]);
+                self.fatal(&format!("expected `#`, found `{}`", token_str));
             }
         };
 
diff --git a/src/libsyntax/parse/lexer/mod.rs b/src/libsyntax/parse/lexer/mod.rs
index fd08cbd161b..83d2bb0cc70 100644
--- a/src/libsyntax/parse/lexer/mod.rs
+++ b/src/libsyntax/parse/lexer/mod.rs
@@ -1109,7 +1109,7 @@ impl<'a> StringReader<'a> {
                 // expansion purposes. See #12512 for the gory details of why
                 // this is necessary.
                 let ident = self.with_str_from(start, |lifetime_name| {
-                    str_to_ident(&format!("'{}", lifetime_name)[])
+                    str_to_ident(&format!("'{}", lifetime_name))
                 });
 
                 // Conjure up a "keyword checking ident" to make sure that
diff --git a/src/libsyntax/parse/mod.rs b/src/libsyntax/parse/mod.rs
index 7ed48bdbb92..f826e43528b 100644
--- a/src/libsyntax/parse/mod.rs
+++ b/src/libsyntax/parse/mod.rs
@@ -254,7 +254,7 @@ pub fn file_to_filemap(sess: &ParseSess, path: &Path, spanopt: Option<Span>)
         Ok(bytes) => bytes,
         Err(e) => {
             err(&format!("couldn't read {:?}: {}",
-                        path.display(), e)[]);
+                        path.display(), e));
             unreachable!()
         }
     };
@@ -264,7 +264,7 @@ pub fn file_to_filemap(sess: &ParseSess, path: &Path, spanopt: Option<Span>)
                                      path.as_str().unwrap().to_string())
         }
         None => {
-            err(&format!("{:?} is not UTF-8 encoded", path.display())[])
+            err(&format!("{:?} is not UTF-8 encoded", path.display()))
         }
     }
     unreachable!()
@@ -827,19 +827,19 @@ mod test {
              ast::TtDelimited(_, ref macro_delimed)]
             if name_macro_rules.as_str() == "macro_rules"
             && name_zip.as_str() == "zip" => {
-                match &macro_delimed.tts[] {
+                match &macro_delimed.tts {
                     [ast::TtDelimited(_, ref first_delimed),
                      ast::TtToken(_, token::FatArrow),
                      ast::TtDelimited(_, ref second_delimed)]
                     if macro_delimed.delim == token::Paren => {
-                        match &first_delimed.tts[] {
+                        match &first_delimed.tts {
                             [ast::TtToken(_, token::Dollar),
                              ast::TtToken(_, token::Ident(name, token::Plain))]
                             if first_delimed.delim == token::Paren
                             && name.as_str() == "a" => {},
                             _ => panic!("value 3: {:?}", **first_delimed),
                         }
-                        match &second_delimed.tts[] {
+                        match &second_delimed.tts {
                             [ast::TtToken(_, token::Dollar),
                              ast::TtToken(_, token::Ident(name, token::Plain))]
                             if second_delimed.delim == token::Paren
@@ -1207,7 +1207,7 @@ mod test {
 
         let source = "/// doc comment\r\n/// line 2\r\nfn foo() {}".to_string();
         let item = parse_item_from_source_str(name.clone(), source, Vec::new(), &sess).unwrap();
-        let docs = item.attrs.iter().filter(|a| &a.name()[] == "doc")
+        let docs = item.attrs.iter().filter(|a| &a.name() == "doc")
                     .map(|a| a.value_str().unwrap().to_string()).collect::<Vec<_>>();
         let b: &[_] = &["/// doc comment".to_string(), "/// line 2".to_string()];
         assert_eq!(&docs[..], b);
diff --git a/src/libsyntax/parse/obsolete.rs b/src/libsyntax/parse/obsolete.rs
index 8480772ce6c..e6bcb8ac745 100644
--- a/src/libsyntax/parse/obsolete.rs
+++ b/src/libsyntax/parse/obsolete.rs
@@ -106,16 +106,16 @@ impl<'a> ParserObsoleteMethods for parser::Parser<'a> {
               desc: &str,
               error: bool) {
         if error {
-            self.span_err(sp, &format!("obsolete syntax: {}", kind_str)[]);
+            self.span_err(sp, &format!("obsolete syntax: {}", kind_str));
         } else {
-            self.span_warn(sp, &format!("obsolete syntax: {}", kind_str)[]);
+            self.span_warn(sp, &format!("obsolete syntax: {}", kind_str));
         }
 
         if !self.obsolete_set.contains(&kind) {
             self.sess
                 .span_diagnostic
                 .handler()
-                .note(&format!("{}", desc)[]);
+                .note(&format!("{}", desc));
             self.obsolete_set.insert(kind);
         }
     }
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index 1805543d787..88c34937159 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -5191,7 +5191,7 @@ impl<'a> Parser<'a> {
                     -> (ast::Item_, Vec<ast::Attribute> ) {
         let mut prefix = Path::new(self.sess.span_diagnostic.cm.span_to_filename(self.span));
         prefix.pop();
-        let mod_path = Path::new(".").join_many(&self.mod_path_stack[]);
+        let mod_path = Path::new(".").join_many(&self.mod_path_stack);
         let dir_path = prefix.join(&mod_path);
         let mod_string = token::get_ident(id);
         let (file_path, owns_directory) = match ::attr::first_attr_value_str_by_name(
diff --git a/src/libsyntax/parse/token.rs b/src/libsyntax/parse/token.rs
index 433c013591c..2797ef084d9 100644
--- a/src/libsyntax/parse/token.rs
+++ b/src/libsyntax/parse/token.rs
@@ -652,47 +652,47 @@ impl BytesContainer for InternedString {
 
 impl fmt::Debug for InternedString {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        fmt::Debug::fmt(&self.string[], f)
+        fmt::Debug::fmt(&self.string, f)
     }
 }
 
 impl fmt::Display for InternedString {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        fmt::Display::fmt(&self.string[], f)
+        fmt::Display::fmt(&self.string, f)
     }
 }
 
 impl<'a> PartialEq<&'a str> for InternedString {
     #[inline(always)]
     fn eq(&self, other: & &'a str) -> bool {
-        PartialEq::eq(&self.string[], *other)
+        PartialEq::eq(&self.string[..], *other)
     }
     #[inline(always)]
     fn ne(&self, other: & &'a str) -> bool {
-        PartialEq::ne(&self.string[], *other)
+        PartialEq::ne(&self.string[..], *other)
     }
 }
 
 impl<'a> PartialEq<InternedString > for &'a str {
     #[inline(always)]
     fn eq(&self, other: &InternedString) -> bool {
-        PartialEq::eq(*self, &other.string[])
+        PartialEq::eq(*self, &other.string[..])
     }
     #[inline(always)]
     fn ne(&self, other: &InternedString) -> bool {
-        PartialEq::ne(*self, &other.string[])
+        PartialEq::ne(*self, &other.string[..])
     }
 }
 
 impl Decodable for InternedString {
     fn decode<D: Decoder>(d: &mut D) -> Result<InternedString, D::Error> {
-        Ok(get_name(get_ident_interner().intern(&try!(d.read_str())[])))
+        Ok(get_name(get_ident_interner().intern(&try!(d.read_str())[..])))
     }
 }
 
 impl Encodable for InternedString {
     fn encode<S: Encoder>(&self, s: &mut S) -> Result<(), S::Error> {
-        s.emit_str(&self.string[])
+        s.emit_str(&self.string)
     }
 }