From 6f871ba47df8aafe2f7ec7958e32ad5867f88786 Mon Sep 17 00:00:00 2001
From: Dr Maxim Orlovsky <orlovsky@pandoracore.com>
Date: Thu, 31 Mar 2022 16:29:56 +0200
Subject: [PATCH] Add convenience LeafInfo::depth method

Without this method computation of the leaf depth requires cloning due
to the requirements of merkle_branch.into_inner()
---
 src/util/taproot.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/util/taproot.rs b/src/util/taproot.rs
index 1ada92fa..ec8c1ca1 100644
--- a/src/util/taproot.rs
+++ b/src/util/taproot.rs
@@ -627,6 +627,14 @@ impl LeafInfo {
         }
     }
 
+    /// Returns the depth of this script leaf in the tap tree.
+    #[inline]
+    pub fn depth(&self) -> u8 {
+        // The depth is guaranteed to be < 127 by the TaprootBuilder type.
+        // TODO: Following MSRV bump implement via `try_into().expect("")`.
+        self.merkle_branch.0.len() as u8
+    }
+
     /// Computes a leaf hash for this [`LeafInfo`].
     #[inline]
     pub fn leaf_hash(&self) -> TapLeafHash {