Struct FormatterContext

pub struct FormatterContext<'a> { /* private fields */ }

Provides context for formatters.

Implementations

impl FormatterContext<'_>

pub fn new() -> Self

Constructs a FormatterContext.

pub fn set_style_range(&mut self, range: Option<Range<usize>>)

Sets style range (in bytes) of the formatted text.

Users must ensure that indexes are correctly UTF-8 boundary.

pub fn style_range(&self) -> Option<Range<usize>>

A style range (in bytes) of the formatted text.

If style is available in the sink, the text in the range will be rendered in the style corresponding to that log message level, otherwise it will be ignored.

Its indexes are guaranteed by the setter to be the correct UTF-8 boundary.

Trait Implementations

impl<'a> Debug for FormatterContext<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> Default for FormatterContext<'a>

fn default() -> FormatterContext<'a>

Returns the “default value” for a type.