From 66880a641295734c437feb4eb32fb60bf5cd9af5 Mon Sep 17 00:00:00 2001
From: John Hodge <tpg@mutabah.net>
Date: Wed, 25 Mar 2015 21:37:29 +0800
Subject: Macros updated with concat!, stringify!, and $crate

---
 src/parse/root.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/parse/root.cpp')

diff --git a/src/parse/root.cpp b/src/parse/root.cpp
index 759c65ac..39776689 100644
--- a/src/parse/root.cpp
+++ b/src/parse/root.cpp
@@ -825,6 +825,18 @@ void Parse_Use(TokenStream& lex, ::std::function<void(AST::Path, ::std::string)>
     Token   tok;
     AST::Path   path = AST::Path( AST::Path::TagAbsolute() );
     
+    // Leading :: is allowed and ignored for the $crate feature
+    if( LOOK_AHEAD(lex) == TOK_DOUBLE_COLON ) {
+        GET_TOK(tok, lex);
+        // HACK! mrustc emits $crate as `::"crate-name"`
+        if( LOOK_AHEAD(lex) == TOK_STRING )
+        {
+            GET_CHECK_TOK(tok, lex, TOK_STRING);
+            path.set_crate(tok.str());
+            GET_CHECK_TOK(tok, lex, TOK_DOUBLE_COLON);
+        }
+    }
+    
     switch( GET_TOK(tok, lex) )
     {
     case TOK_RWORD_SELF:
-- 
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