+/// Wrapper for logging a [`PublicKey`] in hex format.
+///
+/// This is not exported to bindings users as fmt can't be used in C
+#[doc(hidden)]
+pub struct DebugPubKey<'a>(pub &'a PublicKey);
+impl<'a> core::fmt::Display for DebugPubKey<'a> {
+ fn fmt(&self, f: &mut core::fmt::Formatter) -> Result<(), core::fmt::Error> {
+ for i in self.0.serialize().iter() {
+ write!(f, "{:02x}", i)?;
+ }
+ Ok(())
+ }
+}
+
+/// Wrapper for logging byte slices in hex format.
+///
+/// This is not exported to bindings users 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> {
+ fn fmt(&self, f: &mut core::fmt::Formatter) -> Result<(), core::fmt::Error> {
+ for i in self.0 {
+ write!(f, "{:02x}", i)?;
+ }
+ Ok(())
+ }
+}
+
+/// Wrapper for logging `Iterator`s.
+///
+/// This is not exported to bindings users as fmt can't be used in C
+#[doc(hidden)]
+pub struct DebugIter<T: fmt::Display, I: core::iter::Iterator<Item = T> + Clone>(pub I);
+impl<T: fmt::Display, I: core::iter::Iterator<Item = T> + Clone> fmt::Display for DebugIter<T, I> {
+ fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
+ write!(f, "[")?;
+ let mut iter = self.0.clone();
+ if let Some(item) = iter.next() {
+ write!(f, "{}", item)?;
+ }
+ while let Some(item) = iter.next() {
+ write!(f, ", {}", item)?;
+ }
+ write!(f, "]")?;
+ Ok(())
+ }
+}
+