From 8d5374a867e41ae71c271059901277a441898a1f Mon Sep 17 00:00:00 2001
From: Dennis Ranke <dennis.ranke@gmail.com>
Date: Thu, 3 Nov 2022 23:27:53 +0100
Subject: [PATCH] add support to ignore empty memory section when packing

---
 uw8-tool/src/pack.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/uw8-tool/src/pack.rs b/uw8-tool/src/pack.rs
index 640bb00..1135a95 100644
--- a/uw8-tool/src/pack.rs
+++ b/uw8-tool/src/pack.rs
@@ -220,6 +220,11 @@ impl<'a> ParsedModule<'a> {
                     validate_table_section(reader)?;
                     table_section = Some(Section::new(range, ()));
                 }
+                Payload::MemorySection(reader) => {
+                    if reader.get_count() != 0 {
+                        bail!("Found non-empty MemorySection. Memory has to be imported!");
+                    }
+                }
                 Payload::ElementSection(mut reader) => {
                     let mut elements = Vec::with_capacity(reader.get_count() as usize);
                     for _ in 0..reader.get_count() {