Struct Formatter

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

Configures how a scope is formatted.

Implementations

impl<'a> Formatter<'a>

pub fn new(dst: &'a mut String) -> Self

Return a new formatter that writes to the given string.

pub fn block<F>(&mut self, f: F) -> Result

where F: FnOnce(&mut Self) -> Result,

Wrap the given function inside a block.

pub fn indent<F, R>(&mut self, f: F) -> R

where F: FnOnce(&mut Self) -> R,

Call the given function with the indentation level incremented by one.

pub fn is_start_of_line(&self) -> bool

Check if current destination is the start of a new line.

Trait Implementations

impl<'a> Debug for Formatter<'a>

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

Formats the value using the given formatter.

impl<'a> Write for Formatter<'a>

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.