From 364b4dea6269debefc0a7eaedbec4a60fbf0e74d Mon Sep 17 00:00:00 2001
From: chriseth <chris@ethereum.org>
Date: Tue, 26 Sep 2017 18:25:36 +0200
Subject: [PATCH] Add some asserts about calldata encoded size.

---
 libsolidity/codegen/ArrayUtils.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libsolidity/codegen/ArrayUtils.cpp b/libsolidity/codegen/ArrayUtils.cpp
index e17188c26..ce8cbb5f2 100644
--- a/libsolidity/codegen/ArrayUtils.cpp
+++ b/libsolidity/codegen/ArrayUtils.cpp
@@ -291,8 +291,11 @@ void ArrayUtils::copyArrayToMemory(ArrayType const& _sourceType, bool _padToWord
 	CompilerUtils utils(m_context);
 	unsigned baseSize = 1;
 	if (!_sourceType.isByteArray())
+	{
 		// We always pad the elements, regardless of _padToWordBoundaries.
 		baseSize = _sourceType.baseType()->calldataEncodedSize();
+		solAssert(baseSize >= 0x20, "");
+	}
 
 	if (_sourceType.location() == DataLocation::CallData)
 	{