Struct rust_format::RustFmt

pub struct RustFmt { /* private fields */ }

This formatter uses rustfmt for formatting source code

An example using a custom configuration:

use std::collections::HashMap;
use rust_format::{Config, Edition, Formatter, RustFmt};

let source = r#"use std::marker; use std::io; mod test; mod impls;"#;

let mut options = HashMap::with_capacity(2);
options.insert("reorder_imports", "false");
options.insert("reorder_modules", "false");

let config = Config::new(Edition::Rust2018, options);
let rustfmt = RustFmt::from_config(config);

let actual = rustfmt.format_str(source).unwrap();
let expected = r#"use std::marker;
use std::io;
mod test;
mod impls;
"#;

assert_eq!(expected, actual);

Implementations

impl RustFmt

pub fn from_config<K, V>(config: Config<K, V>) -> Self where
    K: Default + AsRef<OsStr>,
    V: Default + AsRef<OsStr>, 

Creates a new instance of the formatter from the given configuration

Trait Implementations

impl Default for RustFmt

fn default() -> Self

Returns the “default value” for a type.

impl Formatter for RustFmt

fn format_str(&self, source: impl AsRef<str>) -> Result<String, Error>

Format the given string and return the results in another String. An error is returned if any issues occur during formatting

fn format_file(&self, path: impl AsRef<Path>) -> Result<(), Error>

Format the given file specified hte path and overwrite the file with the results. An error is returned if any issues occur during formatting

fn format_tokens(&self, tokens: TokenStream) -> Result<String, Error>

Format the given TokenStream and return the results in a String. An error is returned if any issues occur during formatting