From 41c607f09badb2c3ed58ff6fb17a8ebbef2cdabd Mon Sep 17 00:00:00 2001
From: Andrew Chow <achow101-github@achow101.com>
Date: Wed, 27 Jun 2018 16:53:48 -0700
Subject: Implement PSBT Structures and un/serialization methods per BIP 174

---
 src/script/sign.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/script/sign.cpp')

diff --git a/src/script/sign.cpp b/src/script/sign.cpp
index 60a8a2655d..afbcb22d18 100644
--- a/src/script/sign.cpp
+++ b/src/script/sign.cpp
@@ -429,3 +429,19 @@ bool IsSolvable(const SigningProvider& provider, const CScript& script)
     }
     return false;
 }
+
+
+bool PartiallySignedTransaction::IsNull() const
+{
+    return !tx && inputs.empty() && outputs.empty() && unknown.empty();
+}
+
+bool PSBTInput::IsNull() const
+{
+    return !non_witness_utxo && witness_utxo.IsNull() && partial_sigs.empty() && unknown.empty() && hd_keypaths.empty() && redeem_script.empty() && witness_script.empty();
+}
+
+bool PSBTOutput::IsNull() const
+{
+    return redeem_script.empty() && witness_script.empty() && hd_keypaths.empty() && unknown.empty();
+}
-- 
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