From 5e5cc6749eb16f2820fe291582ded0b035667612 Mon Sep 17 00:00:00 2001
From: Huon Wilson <dbau.pp+github@gmail.com>
Date: Fri, 5 Dec 2014 01:10:22 -0800
Subject: Slash the ast::Stmt type from 104 to 24 bytes.

(on platforms with 64-bit pointers.)

The StmtMac variant is rather large and also fairly rare, so let's
optimise the common case.
---
 src/libsyntax/ext/expand.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/libsyntax/ext')

diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index f2b6f6bfe16..d2d624fa05e 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -672,7 +672,7 @@ fn expand_stmt(s: Stmt, fld: &mut MacroExpander) -> SmallVector<P<Stmt>> {
         StmtMac(mac, style) => (mac, style),
         _ => return expand_non_macro_stmt(s, fld)
     };
-    let expanded_stmt = match expand_mac_invoc(mac, s.span,
+    let expanded_stmt = match expand_mac_invoc(mac.and_then(|m| m), s.span,
                                                 |r| r.make_stmt(),
                                                 mark_stmt, fld) {
         Some(stmt) => stmt,
-- 
cgit 1.4.1-3-g733a5