Struct FormatBuffer 

pub struct FormatBuffer { /* private fields */ }

Stack-resident UTF-8 buffer for one log record’s formatted body.

Write impl truncates + appends a single … (3 bytes) on overflow; subsequent writes drop silently. The truncated content is still valid UTF-8 (… is 3 bytes; we shrink first to make room rather than splitting a multi-byte sequence).

Implementations

impl FormatBuffer

pub fn new() -> Self

Empty buffer at the configured capacity.

pub fn as_str(&self) -> &str

Borrow the current contents as &str.

pub fn truncated(&self) -> bool

Whether the formatter saw an overflow on at least one write.

Trait Implementations

impl Default for FormatBuffer

fn default() -> Self

Returns the “default value” for a type.

impl Write for FormatBuffer

fn write_str(&mut self, s: &str) -> Result

Writes a string slice into this writer, returning whether the write succeeded.

fn write_char(&mut self, c: char) -> Result<(), Error>

Writes a char into this writer, returning whether the write succeeded.

fn write_fmt(&mut self, args: Arguments<'_>) -> Result<(), Error>

Glue for usage of the write! macro with implementors of this trait.