feat: uniffi wrapper for payment preimage

bindings/ldk_node.udl

@@ -803,6 +803,11 @@ interface Bolt12Invoice {
 	sequence<u8> encode();
 };
 
+interface PaymentPreimage {
+	[Throws=NodeError, Name=from_str]
+	constructor([ByRef] string preimage_str);
+};
+
 [Custom]
 typedef string Txid;
 
@@ -830,9 +835,6 @@ typedef string PaymentId;
 [Custom]
 typedef string PaymentHash;
 
-[Custom]
-typedef string PaymentPreimage;
-
 [Custom]
 typedef string PaymentSecret;
 

src/ffi/mod.rs

@@ -19,7 +19,7 @@ where
 }
 
 #[cfg(feature = "uniffi")]
-pub fn maybe_try_convert_enum<T, R>(wrapped_type: &T) -> Result<R, crate::error::Error>
+pub fn maybe_try_from<T, R>(wrapped_type: &T) -> Result<R, crate::error::Error>
 where
 	for<'a> R: TryFrom<&'a T, Error = crate::error::Error>,
 {
@@ -37,7 +37,7 @@ pub fn maybe_deref<T>(value: &T) -> &T {
 }
 
 #[cfg(not(feature = "uniffi"))]
-pub fn maybe_try_convert_enum<T>(value: &T) -> Result<&T, crate::error::Error> {
+pub fn maybe_try_from<T>(value: &T) -> Result<&T, crate::error::Error> {
 	Ok(value)
 }