From d55fa2a9a3aa00a723f224eda764580a0492abd9 Mon Sep 17 00:00:00 2001
From: Graydon Hoare <graydon@mozilla.com>
Date: Wed, 4 May 2011 19:05:16 -0700
Subject: Add #env syntax extension for plucking strings out of the compilation
 environment.

---
 src/comp/front/parser.rs | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/comp/front/parser.rs')

diff --git a/src/comp/front/parser.rs b/src/comp/front/parser.rs
index e7a86d6e..a7e355af 100644
--- a/src/comp/front/parser.rs
+++ b/src/comp/front/parser.rs
@@ -948,6 +948,13 @@ fn expand_syntax_ext(parser p, ast.span sp,
                                     expanded,
                                     ast.ann_none);
 
+        ret newexpr;
+    } else if (_str.eq(extname, "env")) {
+        auto expanded = extenv.expand_syntax_ext(p, sp, args, body);
+        auto newexpr = ast.expr_ext(path, args, body,
+                                    expanded,
+                                    ast.ann_none);
+
         ret newexpr;
     } else {
         p.err("unknown syntax extension");
-- 
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