Fix fields in zone text not being truncated if too long

Signed-off-by: Alex Saveau <[email protected]>

tracing-tracy/src/lib.rs

@@ -134,15 +134,27 @@ impl<F> TracyLayer<F> {
  }
  }
 
- fn truncate_to_length<'d>(
+ fn truncate_span_to_length<'a>(
  &self,
- data: &'d str,
+ data: &'a str,
  file: &str,
  function: &str,
  error_msg: &'static str,
- ) -> &'d str {
- // From AllocSourceLocation
- let mut max_len = usize::from(u16::MAX) - 2 - 4 - 4 - function.len() - 1 - file.len() - 1;
+ ) -> &'a str {
+ self.truncate_to_length(
+ // From AllocSourceLocation
+ usize::from(u16::MAX) - 2 - 4 - 4 - function.len() - 1 - file.len() - 1,
+ data,
+ error_msg,
+ )
+ }
+
+ fn truncate_to_length<'a>(
+ &self,
+ mut max_len: usize,
+ data: &'a str,
+ error_msg: &'static str,
+ ) -> &'a str {
  if data.len() >= max_len {
  while !data.is_char_boundary(max_len) {
  max_len -= 1;
@@ -228,9 +240,8 @@ where
  if !visitor.first {
  self.client.message(
  self.truncate_to_length(
+ (u16::MAX - 1).into(),
  visitor.dest,
- "",
- "",
  "event message is too long and was truncated",
  ),
  self.stack_depth,
@@ -254,7 +265,7 @@ where
  let span = |name: &str| {
  (
  self.client.clone().span_alloc(
- Some(self.truncate_to_length(
+ Some(self.truncate_span_to_length(
  name,
  file,
  "",
@@ -279,7 +290,11 @@ where
  }),
  Some(fields) => {
  let span = span(metadata.name());
- span.0.emit_text(&fields.fields);
+ span.0.emit_text(self.truncate_to_length(
+ (u16::MAX - 1).into(),
+ &fields.fields,
+ "span field values are too long and were truncated",
+ ));
  span
  }
  }