Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/syntax/src/syntax_editor.rs')
| -rw-r--r-- | crates/syntax/src/syntax_editor.rs | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/crates/syntax/src/syntax_editor.rs b/crates/syntax/src/syntax_editor.rs index b82181ae13..48c160b9a9 100644 --- a/crates/syntax/src/syntax_editor.rs +++ b/crates/syntax/src/syntax_editor.rs @@ -5,6 +5,7 @@ //! [`SyntaxEditor`]: https://github.com/dotnet/roslyn/blob/43b0b05cc4f492fd5de00f6f6717409091df8daa/src/Workspaces/Core/Portable/Editing/SyntaxEditor.cs use std::{ + fmt, num::NonZeroU32, ops::RangeInclusive, sync::atomic::{AtomicU32, Ordering}, @@ -282,6 +283,64 @@ enum ChangeKind { Replace, } +impl fmt::Display for Change { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + match self { + Change::Insert(position, node_or_token) => { + let parent = position.parent(); + let mut parent_str = parent.to_string(); + let target_range = self.target_range().start() - parent.text_range().start(); + + parent_str.insert_str( + target_range.into(), + &format!("\x1b[42m{node_or_token}\x1b[0m\x1b[K"), + ); + f.write_str(&parent_str) + } + Change::InsertAll(position, vec) => { + let parent = position.parent(); + let mut parent_str = parent.to_string(); + let target_range = self.target_range().start() - parent.text_range().start(); + let insertion: String = vec.iter().map(|it| it.to_string()).collect(); + + parent_str + .insert_str(target_range.into(), &format!("\x1b[42m{insertion}\x1b[0m\x1b[K")); + f.write_str(&parent_str) + } + Change::Replace(old, new) => { + if let Some(new) = new { + write!(f, "\x1b[41m{old}\x1b[42m{new}\x1b[0m\x1b[K") + } else { + write!(f, "\x1b[41m{old}\x1b[0m\x1b[K") + } + } + Change::ReplaceWithMany(old, vec) => { + let new: String = vec.iter().map(|it| it.to_string()).collect(); + write!(f, "\x1b[41m{old}\x1b[42m{new}\x1b[0m\x1b[K") + } + Change::ReplaceAll(range, vec) => { + let parent = range.start().parent().unwrap(); + let parent_str = parent.to_string(); + let pre_range = + TextRange::new(parent.text_range().start(), range.start().text_range().start()); + let old_range = TextRange::new( + range.start().text_range().start(), + range.end().text_range().end(), + ); + let post_range = + TextRange::new(range.end().text_range().end(), parent.text_range().end()); + + let pre_str = &parent_str[pre_range - parent.text_range().start()]; + let old_str = &parent_str[old_range - parent.text_range().start()]; + let post_str = &parent_str[post_range - parent.text_range().start()]; + let new: String = vec.iter().map(|it| it.to_string()).collect(); + + write!(f, "{pre_str}\x1b[41m{old_str}\x1b[42m{new}\x1b[0m\x1b[K{post_str}") + } + } + } +} + /// Utility trait to allow calling syntax editor functions with references or owned /// nodes. Do not use outside of this module. pub trait Element { |