Add debug implementations for some types: this should help when debug…

…ging

src/de/escape.rs

@@ -12,7 +12,7 @@ use std::borrow::Cow;
 /// Escaping the value is actually not always necessary, for instance
 /// when converting to float, we don't expect any escapable character
 /// anyway
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub(crate) struct EscapedDeserializer {
     decoder: Decoder,
     /// Possible escaped value of text/CDATA or attribute value

src/events/attributes.rs

@@ -13,7 +13,7 @@ use std::{borrow::Cow, collections::HashMap, io::BufRead, ops::Range};
 /// The duplicate check can be turned off by calling [`with_checks(false)`].
 ///
 /// [`with_checks(false)`]: #method.with_checks
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct Attributes<'a> {
     /// slice of `Element` corresponding to attributes
     bytes: &'a [u8],

src/reader.rs

@@ -1568,12 +1568,12 @@ impl NamespaceBufferIndex {
 
 /// Utf8 Decoder
 #[cfg(not(feature = "encoding"))]
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, Debug)]
 pub struct Decoder;
 
 /// Utf8 Decoder
 #[cfg(feature = "encoding")]
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, Debug)]
 pub struct Decoder {
     encoding: &'static Encoding,
 }