refactor(lsp): use deno_ast and cache swc ASTs (#11780)

1 files changed, 0 insertions, 106 deletions

diff --git a/cli/ast/comments.rs b/cli/ast/comments.rs
deleted file mode 100644
index dfe7f99a9..000000000
--- a/cli/ast/comments.rs
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
-
-use std::cell::RefCell;
-use std::rc::Rc;
-use std::sync::Arc;
-use swc_common::comments::Comment;
-use swc_common::comments::Comments;
-use swc_common::comments::SingleThreadedComments;
-use swc_common::comments::SingleThreadedCommentsMapInner;
-use swc_common::BytePos;
-
-/// An implementation of swc's `Comments` that implements `Sync`
-/// to support being used in multi-threaded code. This implementation
-/// is immutable and should you need mutability you may create a copy
-/// by converting it to an swc `SingleThreadedComments`.
-#[derive(Clone, Debug)]
-pub struct MultiThreadedComments {
-  leading: Arc<SingleThreadedCommentsMapInner>,
-  trailing: Arc<SingleThreadedCommentsMapInner>,
-}
-
-impl MultiThreadedComments {
-  pub fn from_single_threaded(comments: SingleThreadedComments) -> Self {
-    let (leading, trailing) = comments.take_all();
-    let leading = Arc::new(Rc::try_unwrap(leading).unwrap().into_inner());
-    let trailing = Arc::new(Rc::try_unwrap(trailing).unwrap().into_inner());
-    MultiThreadedComments { leading, trailing }
-  }
-
-  pub fn as_single_threaded(&self) -> SingleThreadedComments {
-    let leading = Rc::new(RefCell::new((*self.leading).to_owned()));
-    let trailing = Rc::new(RefCell::new((*self.trailing).to_owned()));
-    SingleThreadedComments::from_leading_and_trailing(leading, trailing)
-  }
-
-  /// Gets a vector of all the comments sorted by position.
-  pub fn get_vec(&self) -> Vec<Comment> {
-    let mut comments = self
-      .leading
-      .values()
-      .chain(self.trailing.values())
-      .flatten()
-      .cloned()
-      .collect::<Vec<_>>();
-    comments.sort_by_key(|comment| comment.span.lo);
-    comments
-  }
-}
-
-impl Comments for MultiThreadedComments {
-  fn has_leading(&self, pos: BytePos) -> bool {
-    self.leading.contains_key(&pos)
-  }
-
-  fn get_leading(&self, pos: BytePos) -> Option<Vec<Comment>> {
-    self.leading.get(&pos).cloned()
-  }
-
-  fn has_trailing(&self, pos: BytePos) -> bool {
-    self.trailing.contains_key(&pos)
-  }
-
-  fn get_trailing(&self, pos: BytePos) -> Option<Vec<Comment>> {
-    self.trailing.get(&pos).cloned()
-  }
-
-  fn add_leading(&self, _pos: BytePos, _cmt: Comment) {
-    panic_readonly();
-  }
-
-  fn add_leading_comments(&self, _pos: BytePos, _comments: Vec<Comment>) {
-    panic_readonly();
-  }
-
-  fn move_leading(&self, _from: BytePos, _to: BytePos) {
-    panic_readonly();
-  }
-
-  fn take_leading(&self, _pos: BytePos) -> Option<Vec<Comment>> {
-    panic_readonly();
-  }
-
-  fn add_trailing(&self, _pos: BytePos, _cmt: Comment) {
-    panic_readonly();
-  }
-
-  fn add_trailing_comments(&self, _pos: BytePos, _comments: Vec<Comment>) {
-    panic_readonly();
-  }
-
-  fn move_trailing(&self, _from: BytePos, _to: BytePos) {
-    panic_readonly();
-  }
-
-  fn take_trailing(&self, _pos: BytePos) -> Option<Vec<Comment>> {
-    panic_readonly();
-  }
-
-  fn add_pure_comment(&self, _pos: BytePos) {
-    panic_readonly();
-  }
-}
-
-fn panic_readonly() -> ! {
-  panic!("MultiThreadedComments do not support write operations")
-}