Struct MacroDiagGuard 

pub struct MacroDiagGuard(/* private fields */);

RAII marker: “the log record currently being emitted comes from a diagnostic macro that already counted itself via note_status”.

The tally has TWO producers which must never overlap: the macros (Info!/Warn!/Error!/Fatal!/Debug!) count at RAISE time — even when output is suppressed, which the MAX_ERRORS cap depends on — and the logger backend counts every OTHER record it prints (raw log::warn! and friends, which previously printed Warning: lines that no counter ever saw: the 131 MB witness logged 12,105 Warning: lines and reported “2 warnings”). This guard is how the logger tells the two apart.

Trait Implementations

impl Drop for MacroDiagGuard

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.