Trait TextBuffer 

pub trait TextBuffer: AsRef<str> + Into<String> {
    // Required methods
    fn insert_text(&mut self, text: &str, ch_idx: usize) -> usize;
    fn delete_char_range(&mut self, ch_range: Range<usize>);

    // Provided methods
    fn as_str(&self) -> &str { ... }
    fn clear(&mut self) { ... }
    fn replace(&mut self, text: &str) { ... }
    fn take(&mut self) -> String { ... }
}

Trait constraining what types TextEdit may use as an underlying buffer.

Most likely you will use a String which implements TextBuffer.

Required Methods

fn insert_text(&mut self, text: &str, ch_idx: usize) -> usize

Inserts text text into this buffer at character index ch_idx.

Notes

ch_idx is a character index, not a byte index.

Return

Returns how many characters were successfully inserted

fn delete_char_range(&mut self, ch_range: Range<usize>)

Deletes a range of text ch_range from this buffer.

Notes

ch_range is a character range, not a byte range.

Provided Methods

fn as_str(&self) -> &str

Returns this buffer as a str.

This is an utility method, as it simply relies on the AsRef<str> implementation.

fn clear(&mut self)

Clears all characters in this buffer

fn replace(&mut self, text: &str)

Replaces all contents of this string with text

fn take(&mut self) -> String

Clears all characters in this buffer and returns a string of the contents.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl TextBuffer for String

fn insert_text(&mut self, text: &str, ch_idx: usize) -> usize

fn delete_char_range(&mut self, ch_range: Range<usize>)

fn clear(&mut self)

fn replace(&mut self, text: &str)

fn take(&mut self) -> String

Implementors