From b24f53f4a1dfaa03ce81db15706749f3f2f96320 Mon Sep 17 00:00:00 2001
From: Henry de Valence <hdevalence@hdevalence.ca>
Date: Mon, 3 Feb 2020 15:36:48 -0800
Subject: [PATCH] Add From impls for InventoryHash

---
 zebra-network/src/protocol/external/inv.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/zebra-network/src/protocol/external/inv.rs b/zebra-network/src/protocol/external/inv.rs
index f3c6aeac..f22389ba 100644
--- a/zebra-network/src/protocol/external/inv.rs
+++ b/zebra-network/src/protocol/external/inv.rs
@@ -40,6 +40,20 @@ pub enum InventoryHash {
     FilteredBlock(BlockHeaderHash),
 }
 
+impl From<TransactionHash> for InventoryHash {
+    fn from(tx: TransactionHash) -> InventoryHash {
+        InventoryHash::Tx(tx)
+    }
+}
+
+impl From<BlockHeaderHash> for InventoryHash {
+    fn from(block: BlockHeaderHash) -> InventoryHash {
+        // Auto-convert to Block rather than FilteredBlock because filtered
+        // blocks aren't useful for Zcash.
+        InventoryHash::Block(block)
+    }
+}
+
 impl ZcashSerialize for InventoryHash {
     fn zcash_serialize<W: Write>(&self, mut writer: W) -> Result<(), SerializationError> {
         let (code, bytes) = match *self {