From 0e76c8c51befe73fbbe9423d95bb96258853d1a9 Mon Sep 17 00:00:00 2001
From: Emilio Cobos Álvarez <emilio@crisal.io>
Date: Fri, 3 Mar 2017 14:37:16 +0100
Subject: codegen: Don't pad union fields.

Fixes #553
---
 src/codegen/mod.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/codegen/mod.rs b/src/codegen/mod.rs
index 120acefa..fb07eaf8 100644
--- a/src/codegen/mod.rs
+++ b/src/codegen/mod.rs
@@ -1136,9 +1136,11 @@ impl CodeGenerator for CompInfo {
                 }
             };
 
-            if let Some(padding_field) =
-                struct_layout.pad_field(&field_name, field_ty, field.offset()) {
-                fields.push(padding_field);
+            if !is_union {
+                if let Some(padding_field) =
+                    struct_layout.pad_field(&field_name, field_ty, field.offset()) {
+                    fields.push(padding_field);
+                }
             }
 
             let is_private = field.annotations()
-- 
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