Simplify use of keyword symbols

7 files changed, 19 insertions, 18 deletions

diff --git a/src/libsyntax_ext/deriving/clone.rs b/src/libsyntax_ext/deriving/clone.rs
index 1b0d572324a..a39e0a6e973 100644
--- a/src/libsyntax_ext/deriving/clone.rs
+++ b/src/libsyntax_ext/deriving/clone.rs
@@ -7,7 +7,7 @@ use syntax::attr;
 use syntax::ext::base::{Annotatable, ExtCtxt};
 use syntax::ext::build::AstBuilder;
 use syntax::ptr::P;
-use syntax::symbol::{Symbol, keywords, sym};
+use syntax::symbol::{Symbol, kw, sym};
 use syntax_pos::Span;
 
 pub fn expand_deriving_clone(cx: &mut ExtCtxt<'_>,
@@ -129,7 +129,8 @@ fn cs_clone_shallow(name: &str,
     let mut stmts = Vec::new();
     if is_union {
         // let _: AssertParamIsCopy<Self>;
-        let self_ty = cx.ty_path(cx.path_ident(trait_span, keywords::SelfUpper.ident()));
+        let self_ty =
+            cx.ty_path(cx.path_ident(trait_span, ast::Ident::with_empty_ctxt(kw::SelfUpper)));
         assert_ty_bounds(cx, &mut stmts, self_ty, trait_span, "AssertParamIsCopy");
     } else {
         match *substr.fields {
diff --git a/src/libsyntax_ext/deriving/generic/mod.rs b/src/libsyntax_ext/deriving/generic/mod.rs
index a13dc07085f..5b4bf6b8618 100644
--- a/src/libsyntax_ext/deriving/generic/mod.rs
+++ b/src/libsyntax_ext/deriving/generic/mod.rs
@@ -191,7 +191,7 @@ use syntax::ext::build::AstBuilder;
 use syntax::source_map::{self, respan};
 use syntax::util::map_in_place::MapInPlace;
 use syntax::ptr::P;
-use syntax::symbol::{Symbol, keywords, sym};
+use syntax::symbol::{Symbol, kw, sym};
 use syntax::parse::ParseSess;
 use syntax_pos::{DUMMY_SP, Span};
 
@@ -686,7 +686,7 @@ impl<'a> TraitDef<'a> {
         };
 
         cx.item(self.span,
-                keywords::Invalid.ident(),
+                Ident::with_empty_ctxt(kw::Invalid),
                 a,
                 ast::ItemKind::Impl(unsafety,
                                     ast::ImplPolarity::Positive,
@@ -929,8 +929,8 @@ impl<'a> MethodDef<'a> {
 
         let args = {
             let self_args = explicit_self.map(|explicit_self| {
-                ast::Arg::from_self(explicit_self,
-                                    keywords::SelfLower.ident().with_span_pos(trait_.span))
+                let ident = Ident::with_empty_ctxt(kw::SelfLower).with_span_pos(trait_.span);
+                ast::Arg::from_self(explicit_self, ident)
             });
             let nonself_args = arg_types.into_iter()
                 .map(|(name, ty)| cx.arg(trait_.span, name, ty));
diff --git a/src/libsyntax_ext/deriving/generic/ty.rs b/src/libsyntax_ext/deriving/generic/ty.rs
index 100ec0057ee..362ea9ed229 100644
--- a/src/libsyntax_ext/deriving/generic/ty.rs
+++ b/src/libsyntax_ext/deriving/generic/ty.rs
@@ -10,7 +10,7 @@ use syntax::ext::build::AstBuilder;
 use syntax::source_map::{respan, DUMMY_SP};
 use syntax::ptr::P;
 use syntax_pos::Span;
-use syntax_pos::symbol::keywords;
+use syntax_pos::symbol::kw;
 
 /// The types of pointers
 #[derive(Clone)]
@@ -86,7 +86,7 @@ impl<'a> Path<'a> {
             PathKind::Local => cx.path_all(span, false, idents, params, Vec::new()),
             PathKind::Std => {
                 let def_site = DUMMY_SP.apply_mark(cx.current_expansion.mark);
-                idents.insert(0, Ident::new(keywords::DollarCrate.name(), def_site));
+                idents.insert(0, Ident::new(kw::DollarCrate, def_site));
                 cx.path_all(span, false, idents, params, Vec::new())
             }
         }
diff --git a/src/libsyntax_ext/env.rs b/src/libsyntax_ext/env.rs
index 2127179eecb..72a66ae3845 100644
--- a/src/libsyntax_ext/env.rs
+++ b/src/libsyntax_ext/env.rs
@@ -6,7 +6,7 @@
 use syntax::ast::{self, Ident, GenericArg};
 use syntax::ext::base::{self, *};
 use syntax::ext::build::AstBuilder;
-use syntax::symbol::{keywords, Symbol, sym};
+use syntax::symbol::{kw, sym, Symbol};
 use syntax_pos::Span;
 use syntax::tokenstream;
 
@@ -24,7 +24,7 @@ pub fn expand_option_env<'cx>(cx: &'cx mut ExtCtxt<'_>,
     let sp = sp.apply_mark(cx.current_expansion.mark);
     let e = match env::var(&*var.as_str()) {
         Err(..) => {
-            let lt = cx.lifetime(sp, keywords::StaticLifetime.ident());
+            let lt = cx.lifetime(sp, Ident::with_empty_ctxt(kw::StaticLifetime));
             cx.expr_path(cx.path_all(sp,
                                      true,
                                      cx.std_path(&["option", "Option", "None"]),
diff --git a/src/libsyntax_ext/proc_macro_decls.rs b/src/libsyntax_ext/proc_macro_decls.rs
index a13fe65ca0d..a485bb19808 100644
--- a/src/libsyntax_ext/proc_macro_decls.rs
+++ b/src/libsyntax_ext/proc_macro_decls.rs
@@ -13,7 +13,7 @@ use syntax::mut_visit::MutVisitor;
 use syntax::parse::ParseSess;
 use syntax::ptr::P;
 use syntax::symbol::Symbol;
-use syntax::symbol::{keywords, sym};
+use syntax::symbol::{kw, sym};
 use syntax::visit::{self, Visitor};
 
 use syntax_pos::{Span, DUMMY_SP};
@@ -378,7 +378,7 @@ fn mk_decls(
     let custom_derive = Ident::from_str("custom_derive");
     let attr = Ident::from_str("attr");
     let bang = Ident::from_str("bang");
-    let crate_kw = Ident::with_empty_ctxt(keywords::Crate.name());
+    let crate_kw = Ident::with_empty_ctxt(kw::Crate);
 
     let decls = {
         let local_path = |sp: Span, name| {
diff --git a/src/libsyntax_ext/proc_macro_server.rs b/src/libsyntax_ext/proc_macro_server.rs
index 09dce775790..69e83f5a84c 100644
--- a/src/libsyntax_ext/proc_macro_server.rs
+++ b/src/libsyntax_ext/proc_macro_server.rs
@@ -14,7 +14,7 @@ use syntax::parse::lexer::comments;
 use syntax::parse::{self, token, ParseSess};
 use syntax::tokenstream::{self, DelimSpan, IsJoint::*, TokenStream, TreeAndJoint};
 use syntax_pos::hygiene::{SyntaxContext, Transparency};
-use syntax_pos::symbol::{keywords, Symbol};
+use syntax_pos::symbol::{kw, Symbol};
 use syntax_pos::{BytePos, FileName, MultiSpan, Pos, SourceFile, Span};
 
 trait FromInternal<T> {
@@ -142,7 +142,7 @@ impl FromInternal<(TreeAndJoint, &'_ ParseSess, &'_ mut Vec<Self>)>
             Question => op!('?'),
             SingleQuote => op!('\''),
 
-            Ident(ident, false) if ident.name == keywords::DollarCrate.name() =>
+            Ident(ident, false) if ident.name == kw::DollarCrate =>
                 tt!(Ident::dollar_crate()),
             Ident(ident, is_raw) => tt!(Ident::new(ident.name, is_raw)),
             Lifetime(ident) => {
@@ -347,7 +347,7 @@ impl Ident {
     }
     fn dollar_crate(span: Span) -> Ident {
         // `$crate` is accepted as an ident only if it comes from the compiler.
-        Ident { sym: keywords::DollarCrate.name(), is_raw: false, span }
+        Ident { sym: kw::DollarCrate, is_raw: false, span }
     }
 }
 
diff --git a/src/libsyntax_ext/trace_macros.rs b/src/libsyntax_ext/trace_macros.rs
index eca658cb547..61ef94560cc 100644
--- a/src/libsyntax_ext/trace_macros.rs
+++ b/src/libsyntax_ext/trace_macros.rs
@@ -1,6 +1,6 @@
 use syntax::ext::base::{self, ExtCtxt};
 use syntax::feature_gate;
-use syntax::symbol::{keywords, sym};
+use syntax::symbol::{kw, sym};
 use syntax_pos::Span;
 use syntax::tokenstream::TokenTree;
 
@@ -17,10 +17,10 @@ pub fn expand_trace_macros(cx: &mut ExtCtxt<'_>,
     }
 
     match (tt.len(), tt.first()) {
-        (1, Some(&TokenTree::Token(_, ref tok))) if tok.is_keyword(keywords::True) => {
+        (1, Some(&TokenTree::Token(_, ref tok))) if tok.is_keyword(kw::True) => {
             cx.set_trace_macros(true);
         }
-        (1, Some(&TokenTree::Token(_, ref tok))) if tok.is_keyword(keywords::False) => {
+        (1, Some(&TokenTree::Token(_, ref tok))) if tok.is_keyword(kw::False) => {
             cx.set_trace_macros(false);
         }
         _ => cx.span_err(sp, "trace_macros! accepts only `true` or `false`"),