From 56adfa45279cfc3bc9ad20ad6e9f9909b73a880d Mon Sep 17 00:00:00 2001
From: Dr Maxim Orlovsky <orlovsky@pandoracore.com>
Date: Fri, 1 Apr 2022 08:06:18 +0200
Subject: [PATCH] TaprootBuilder::has_hidden_nodes method

---
 src/util/taproot.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/util/taproot.rs b/src/util/taproot.rs
index 440792ab..1fc7a4f9 100644
--- a/src/util/taproot.rs
+++ b/src/util/taproot.rs
@@ -466,6 +466,18 @@ impl TaprootBuilder {
         self.branch.len() == 1 && self.branch[0].is_some()
     }
 
+    /// Checks if the builder has hidden nodes.
+    pub fn has_hidden_nodes(&self) -> bool {
+        for node in &self.branch {
+            if let Some(node) = node {
+                if node.has_hidden_nodes {
+                    return true
+                }
+            }
+        }
+        false
+    }
+
     /// Creates a [`TaprootSpendInfo`] with the given internal key.
     pub fn finalize<C: secp256k1::Verification>(
         mut self,