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macro_rules! derive_debug_via_id {
($typename:ident) => {
impl ::core::fmt::Debug for $typename {
fn fmt(&self, f: &mut ::core::fmt::Formatter) -> Result<(), ::core::fmt::Error> {
::core::fmt::Debug::fmt(&self.id, f)
}
}
};
}
macro_rules! derive_debug_via_field {
($type:ty, $field:ident) => {
derive_debug_via_field!($type, stringify!($type), $field);
};
($type:ty, $typename:expr, $field:ident) => {
impl ::core::fmt::Debug for $type {
fn fmt(&self, f: &mut ::core::fmt::Formatter) -> Result<(), ::core::fmt::Error> {
f.debug_struct($typename)
.field(stringify!($field), &self.$field)
.finish()
}
}
};
}
macro_rules! derive_debug_self_as_ref_hex_bytes {
($typename:ident) => {
impl ::core::fmt::Debug for $typename {
fn fmt(&self, f: &mut ::core::fmt::Formatter) -> Result<(), ::core::fmt::Error> {
crate::debug::write_hex_tuple(f, stringify!($typename), self)
}
}
};
}
pub(crate) fn write_hex_tuple(
fmt: &mut core::fmt::Formatter,
type_name: &str,
value: &dyn AsRef<[u8]>,
) -> Result<(), ::core::fmt::Error> {
fmt.debug_tuple(type_name)
.field(&HexStr(value.as_ref()))
.finish()
}
pub struct HexStr<'a>(pub &'a [u8]);
impl core::fmt::Debug for HexStr<'_> {
fn fmt(&self, fmt: &mut core::fmt::Formatter) -> Result<(), core::fmt::Error> {
fmt.write_str("\"")?;
write_hex_bytes(fmt, self.0)?;
fmt.write_str("\"")?;
Ok(())
}
}
pub(crate) fn write_hex_bytes(
fmt: &mut core::fmt::Formatter,
bytes: &[u8],
) -> Result<(), ::core::fmt::Error> {
for byte in bytes {
write!(fmt, "{:02x}", byte)?;
}
Ok(())
}