[wallet] Add force_non_witness_utxo() to TxBuilder

src/blockchain/electrum.rs

@@ -68,7 +68,7 @@ impl OnlineBlockchain for ElectrumBlockchain {
             .map(|_| ())?)
     }
 
-    fn get_height(&self) -> Result<usize, Error> {
+    fn get_height(&self) -> Result<u32, Error> {
         // TODO: unsubscribe when added to the client, or is there a better call to use here?
 
         Ok(self
@@ -76,7 +76,7 @@ impl OnlineBlockchain for ElectrumBlockchain {
             .as_ref()
             .ok_or(Error::OfflineClient)?
             .block_headers_subscribe()
-            .map(|data| data.height)?)
+            .map(|data| data.height as u32)?)
     }
 
     fn estimate_fee(&self, target: usize) -> Result<FeeRate, Error> {

src/blockchain/esplora.rs

@@ -93,7 +93,7 @@ impl OnlineBlockchain for EsploraBlockchain {
             ._broadcast(tx))?)
     }
 
-    fn get_height(&self) -> Result<usize, Error> {
+    fn get_height(&self) -> Result<u32, Error> {
         Ok(await_or_block!(self
             .0
             .as_ref()
@@ -153,7 +153,7 @@ impl UrlClient {
         Ok(())
     }
 
-    async fn _get_height(&self) -> Result<usize, EsploraError> {
+    async fn _get_height(&self) -> Result<u32, EsploraError> {
         let req = self
             .client
             .get(&format!("{}/api/blocks/tip/height", self.url))

src/blockchain/mod.rs

@@ -64,7 +64,7 @@ pub trait OnlineBlockchain: Blockchain {
     fn get_tx(&self, txid: &Txid) -> Result<Option<Transaction>, Error>;
     fn broadcast(&self, tx: &Transaction) -> Result<(), Error>;
 
-    fn get_height(&self) -> Result<usize, Error>;
+    fn get_height(&self) -> Result<u32, Error>;
     fn estimate_fee(&self, target: usize) -> Result<FeeRate, Error>;
 }