1 files changed, 0 insertions, 178 deletions

diff --git a/crates/ra_syntax/src/syntax_text.rs b/crates/ra_syntax/src/syntax_text.rs
deleted file mode 100644
index 652cb7a1e..000000000
--- a/crates/ra_syntax/src/syntax_text.rs
+++ /dev/null
@@ -1,178 +0,0 @@
-use std::{
-    fmt,
-    ops::{self, Bound},
-};
-
-use crate::{SmolStr, SyntaxElement, SyntaxNode, TextRange, TextUnit};
-
-#[derive(Clone)]
-pub struct SyntaxText {
-    node: SyntaxNode,
-    range: TextRange,
-}
-
-impl SyntaxText {
-    pub(crate) fn new(node: SyntaxNode) -> SyntaxText {
-        let range = node.text_range();
-        SyntaxText { node, range }
-    }
-
-    pub fn try_fold_chunks<T, F, E>(&self, init: T, mut f: F) -> Result<T, E>
-    where
-        F: FnMut(T, &str) -> Result<T, E>,
-    {
-        self.node.descendants_with_tokens().try_fold(init, move |acc, element| {
-            let res = match element {
-                SyntaxElement::Token(token) => {
-                    let range = match self.range.intersection(&token.text_range()) {
-                        None => return Ok(acc),
-                        Some(it) => it,
-                    };
-                    let slice = if range == token.text_range() {
-                        token.text()
-                    } else {
-                        let range = range - token.text_range().start();
-                        &token.text()[range]
-                    };
-                    f(acc, slice)?
-                }
-                SyntaxElement::Node(_) => acc,
-            };
-            Ok(res)
-        })
-    }
-
-    pub fn try_for_each_chunk<F: FnMut(&str) -> Result<(), E>, E>(
-        &self,
-        mut f: F,
-    ) -> Result<(), E> {
-        self.try_fold_chunks((), move |(), chunk| f(chunk))
-    }
-
-    pub fn for_each_chunk<F: FnMut(&str)>(&self, mut f: F) {
-        enum Void {}
-        match self.try_for_each_chunk(|chunk| Ok::<(), Void>(f(chunk))) {
-            Ok(()) => (),
-            Err(void) => match void {},
-        }
-    }
-
-    pub fn to_smol_string(&self) -> SmolStr {
-        self.to_string().into()
-    }
-
-    pub fn contains_char(&self, c: char) -> bool {
-        self.try_for_each_chunk(|chunk| if chunk.contains(c) { Err(()) } else { Ok(()) }).is_err()
-    }
-
-    pub fn find_char(&self, c: char) -> Option<TextUnit> {
-        let mut acc: TextUnit = 0.into();
-        let res = self.try_for_each_chunk(|chunk| {
-            if let Some(pos) = chunk.find(c) {
-                let pos: TextUnit = (pos as u32).into();
-                return Err(acc + pos);
-            }
-            acc += TextUnit::of_str(chunk);
-            Ok(())
-        });
-        found(res)
-    }
-
-    pub fn len(&self) -> TextUnit {
-        self.range.len()
-    }
-
-    pub fn is_empty(&self) -> bool {
-        self.range.is_empty()
-    }
-
-    pub fn slice(&self, range: impl ops::RangeBounds<TextUnit>) -> SyntaxText {
-        let start = match range.start_bound() {
-            Bound::Included(&b) => b,
-            Bound::Excluded(_) => panic!("utf-aware slicing can't work this way"),
-            Bound::Unbounded => 0.into(),
-        };
-        let end = match range.end_bound() {
-            Bound::Included(_) => panic!("utf-aware slicing can't work this way"),
-            Bound::Excluded(&b) => b,
-            Bound::Unbounded => self.len(),
-        };
-        assert!(start <= end);
-        let len = end - start;
-        let start = self.range.start() + start;
-        let end = start + len;
-        assert!(
-            start <= end,
-            "invalid slice, range: {:?}, slice: {:?}",
-            self.range,
-            (range.start_bound(), range.end_bound()),
-        );
-        let range = TextRange::from_to(start, end);
-        assert!(
-            range.is_subrange(&self.range),
-            "invalid slice, range: {:?}, slice: {:?}",
-            self.range,
-            range,
-        );
-        SyntaxText { node: self.node.clone(), range }
-    }
-
-    pub fn char_at(&self, offset: impl Into<TextUnit>) -> Option<char> {
-        let offset = offset.into();
-        let mut start: TextUnit = 0.into();
-        let res = self.try_for_each_chunk(|chunk| {
-            let end = start + TextUnit::of_str(chunk);
-            if start <= offset && offset < end {
-                let off: usize = u32::from(offset - start) as usize;
-                return Err(chunk[off..].chars().next().unwrap());
-            }
-            start = end;
-            Ok(())
-        });
-        found(res)
-    }
-}
-
-fn found<T>(res: Result<(), T>) -> Option<T> {
-    match res {
-        Ok(()) => None,
-        Err(it) => Some(it),
-    }
-}
-
-impl fmt::Debug for SyntaxText {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        fmt::Debug::fmt(&self.to_string(), f)
-    }
-}
-
-impl fmt::Display for SyntaxText {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        self.try_for_each_chunk(|chunk| fmt::Display::fmt(chunk, f))
-    }
-}
-
-impl From<SyntaxText> for String {
-    fn from(text: SyntaxText) -> String {
-        text.to_string()
-    }
-}
-
-impl PartialEq<str> for SyntaxText {
-    fn eq(&self, mut rhs: &str) -> bool {
-        self.try_for_each_chunk(|chunk| {
-            if !rhs.starts_with(chunk) {
-                return Err(());
-            }
-            rhs = &rhs[chunk.len()..];
-            Ok(())
-        })
-        .is_ok()
-    }
-}
-
-impl PartialEq<&'_ str> for SyntaxText {
-    fn eq(&self, rhs: &&str) -> bool {
-        self == *rhs
-    }
-}