Add (C-not exported) tags as required in tuple types

This prepares us for C bindings auto-exporting tuple type fields.

Author: TheBlueMatt

lightning-invoice/src/lib.rs

@@ -379,7 +379,8 @@ pub enum TaggedField {
 
 /// SHA-256 hash
 #[derive(Clone, Debug, Hash, Eq, PartialEq)]
-pub struct Sha256(pub sha256::Hash);
+pub struct Sha256(/// (C-not exported) as the native hash types are not currently mapped
+	pub sha256::Hash);
 
 /// Description string
 ///

lightning/src/util/logger.rs

@@ -121,6 +121,7 @@ pub trait Logger {
 }
 
 /// Wrapper for logging byte slices in hex format.
+/// (C-not exported) as fmt can't be used in C
 #[doc(hidden)]
 pub struct DebugBytes<'a>(pub &'a [u8]);
 impl<'a> core::fmt::Display for DebugBytes<'a> {