1 files changed, 0 insertions, 104 deletions
diff --git a/vendor/itertools/src/diff.rs b/vendor/itertools/src/diff.rs
deleted file mode 100644
index df88d803..00000000
--- a/vendor/itertools/src/diff.rs
+++ /dev/null
@@ -1,104 +0,0 @@
-//! "Diff"ing iterators for caching elements to sequential collections without requiring the new
-//! elements' iterator to be `Clone`.
-//!
-//! [`Diff`] (produced by the [`diff_with`] function)
-//! describes the difference between two non-`Clone` iterators `I` and `J` after breaking ASAP from
-//! a lock-step comparison.
-
-use std::fmt;
-
-use crate::free::put_back;
-use crate::structs::PutBack;
-
-/// A type returned by the [`diff_with`] function.
-///
-/// `Diff` represents the way in which the elements yielded by the iterator `I` differ to some
-/// iterator `J`.
-pub enum Diff<I, J>
-where
-    I: Iterator,
-    J: Iterator,
-{
-    /// The index of the first non-matching element along with both iterator's remaining elements
-    /// starting with the first mis-match.
-    FirstMismatch(usize, PutBack<I>, PutBack<J>),
-    /// The total number of elements that were in `J` along with the remaining elements of `I`.
-    Shorter(usize, PutBack<I>),
-    /// The total number of elements that were in `I` along with the remaining elements of `J`.
-    Longer(usize, PutBack<J>),
-}
-
-impl<I, J> fmt::Debug for Diff<I, J>
-where
-    I: Iterator,
-    J: Iterator,
-    PutBack<I>: fmt::Debug,
-    PutBack<J>: fmt::Debug,
-{
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        match self {
-            Self::FirstMismatch(idx, i, j) => f
-                .debug_tuple("FirstMismatch")
-                .field(idx)
-                .field(i)
-                .field(j)
-                .finish(),
-            Self::Shorter(idx, i) => f.debug_tuple("Shorter").field(idx).field(i).finish(),
-            Self::Longer(idx, j) => f.debug_tuple("Longer").field(idx).field(j).finish(),
-        }
-    }
-}
-
-impl<I, J> Clone for Diff<I, J>
-where
-    I: Iterator,
-    J: Iterator,
-    PutBack<I>: Clone,
-    PutBack<J>: Clone,
-{
-    fn clone(&self) -> Self {
-        match self {
-            Self::FirstMismatch(idx, i, j) => Self::FirstMismatch(*idx, i.clone(), j.clone()),
-            Self::Shorter(idx, i) => Self::Shorter(*idx, i.clone()),
-            Self::Longer(idx, j) => Self::Longer(*idx, j.clone()),
-        }
-    }
-}
-
-/// Compares every element yielded by both `i` and `j` with the given function in lock-step and
-/// returns a [`Diff`] which describes how `j` differs from `i`.
-///
-/// If the number of elements yielded by `j` is less than the number of elements yielded by `i`,
-/// the number of `j` elements yielded will be returned along with `i`'s remaining elements as
-/// `Diff::Shorter`.
-///
-/// If the two elements of a step differ, the index of those elements along with the remaining
-/// elements of both `i` and `j` are returned as `Diff::FirstMismatch`.
-///
-/// If `i` becomes exhausted before `j` becomes exhausted, the number of elements in `i` along with
-/// the remaining `j` elements will be returned as `Diff::Longer`.
-pub fn diff_with<I, J, F>(i: I, j: J, mut is_equal: F) -> Option<Diff<I::IntoIter, J::IntoIter>>
-where
-    I: IntoIterator,
-    J: IntoIterator,
-    F: FnMut(&I::Item, &J::Item) -> bool,
-{
-    let mut i = i.into_iter();
-    let mut j = j.into_iter();
-    let mut idx = 0;
-    while let Some(i_elem) = i.next() {
-        match j.next() {
-            None => return Some(Diff::Shorter(idx, put_back(i).with_value(i_elem))),
-            Some(j_elem) => {
-                if !is_equal(&i_elem, &j_elem) {
-                    let remaining_i = put_back(i).with_value(i_elem);
-                    let remaining_j = put_back(j).with_value(j_elem);
-                    return Some(Diff::FirstMismatch(idx, remaining_i, remaining_j));
-                }
-            }
-        }
-        idx += 1;
-    }
-    j.next()
-        .map(|j_elem| Diff::Longer(idx, put_back(j).with_value(j_elem)))
-}