Move built-in syntax extensions to a separate crate

1 files changed, 0 insertions, 43 deletions

diff --git a/src/libsyntax/ext/trace_macros.rs b/src/libsyntax/ext/trace_macros.rs
deleted file mode 100644
index 628b88d1353..00000000000
--- a/src/libsyntax/ext/trace_macros.rs
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use ast::TokenTree;
-use codemap::Span;
-use ext::base::ExtCtxt;
-use ext::base;
-use feature_gate;
-use parse::token::keywords;
-
-
-pub fn expand_trace_macros(cx: &mut ExtCtxt,
-                           sp: Span,
-                           tt: &[TokenTree])
-                           -> Box<base::MacResult+'static> {
-    if !cx.ecfg.enable_trace_macros() {
-        feature_gate::emit_feature_err(&cx.parse_sess.span_diagnostic,
-                                       "trace_macros",
-                                       sp,
-                                       feature_gate::GateIssue::Language,
-                                       feature_gate::EXPLAIN_TRACE_MACROS);
-        return base::DummyResult::any(sp);
-    }
-
-    match (tt.len(), tt.first()) {
-        (1, Some(&TokenTree::Token(_, ref tok))) if tok.is_keyword(keywords::True) => {
-            cx.set_trace_macros(true);
-        }
-        (1, Some(&TokenTree::Token(_, ref tok))) if tok.is_keyword(keywords::False) => {
-            cx.set_trace_macros(false);
-        }
-        _ => cx.span_err(sp, "trace_macros! accepts only `true` or `false`"),
-    }
-
-    base::DummyResult::any(sp)
-}