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use crate::CowStr;
use super::MagicString;
impl<'text> MagicString<'text> {
pub fn append(&mut self, source: impl Into<CowStr<'text>>) -> &mut Self {
self.append_outro(source.into());
self
}
/// # Example
///```rust
/// use string_wizard::MagicString;
/// let mut s = MagicString::new("01234");
/// s.append_left(2, "a");
/// s.append_left(2, "b");
/// assert_eq!(s.to_string(), "01ab234")
///```
pub fn append_left(&mut self, text_index: u32, content: impl Into<CowStr<'text>>) -> &mut Self {
// Note: by_end_mut only errors when splitting an already-edited chunk,
// but append operations don't require splitting edited chunks in practice.
// We use expect here as this is an internal invariant.
match self.by_end_mut(text_index).expect("append_left: unexpected split error") {
Some(chunk) => {
chunk.append_outro(content.into());
}
None => self.append_intro(content.into()),
}
self
}
/// # Example
/// ```rust
/// use string_wizard::MagicString;
/// let mut s = MagicString::new("01234");
/// s.append_right(2, "A");
/// s.append_right(2, "B");
/// s.append_left(2, "a");
/// s.append_left(2, "b");
/// assert_eq!(s.to_string(), "01abAB234")
///```
pub fn append_right(&mut self, text_index: u32, content: impl Into<CowStr<'text>>) -> &mut Self {
// Note: by_start_mut only errors when splitting an already-edited chunk,
// but append operations don't require splitting edited chunks in practice.
// We use expect here as this is an internal invariant.
match self.by_start_mut(text_index).expect("append_right: unexpected split error") {
Some(chunk) => {
chunk.append_intro(content.into());
}
None => self.append_outro(content.into()),
}
self
}
}