diff --git a/src/_keyword_impls.rs b/src/_keyword_impls.rs
index 7d57578..1e75e9b 100644
--- a/src/_keyword_impls.rs
+++ b/src/_keyword_impls.rs
@@ -1,63 +1,65 @@
 use std::slice::Iter;
 use std::str::Chars;
 
-struct _StringIteratorImpl<'a> {
-    orig: Chars<'a>,
-}
-
-impl crate::_KeywordComparatorIterator<char> for _StringIteratorImpl<'_> {
-    fn consume(&mut self, e: &char) -> bool {
-        return self.orig.next().is_some_and(|a| a.eq(e));
+impl crate::_KeywordComparatorIterator<char> for Chars<'_> {
+    fn consume(&mut self, e: char) -> bool {
+        return self.next().is_some_and(|a| a == e);
     }
 }
 
 impl crate::_Keyword<char> for &str {
-    fn startComparation(&self, expectedLen: usize) -> Option<impl crate::_KeywordComparatorIterator<char>> {
+    fn startComparation(
+        &self,
+        expectedLen: usize,
+    ) -> Option<impl crate::_KeywordComparatorIterator<char>> {
         if (self.len() != expectedLen) {
             return Option::None;
         }
 
-        return Option::Some(_StringIteratorImpl { orig: self.chars() });
+        return Option::Some(self.chars());
     }
 }
 
 impl crate::_Keyword<char> for &String {
-    fn startComparation(&self, expectedLen: usize) -> Option<impl crate::_KeywordComparatorIterator<char>> {
+    fn startComparation(
+        &self,
+        expectedLen: usize,
+    ) -> Option<impl crate::_KeywordComparatorIterator<char>> {
         if (self.len() != expectedLen) {
             return Option::None;
         }
 
-        return Option::Some(_StringIteratorImpl { orig: self.chars() });
+        return Option::Some(self.chars());
     }
 }
-
-struct _ArrayIteratorImpl<'a, T> {
-    orig: Iter<'a, T>,
-}
-
-impl<T: PartialEq> crate::_KeywordComparatorIterator<T> for _ArrayIteratorImpl<'_, T> {
-    fn consume(&mut self, e: &T) -> bool {
-        return self.orig.next().is_some_and(|a| a == e);
+impl<T: PartialEq> crate::_KeywordComparatorIterator<T> for Iter<'_, T> {
+    fn consume(&mut self, e: T) -> bool {
+        return self.next().is_some_and(|a| a.eq(&e));
     }
 }
 
 impl<T: PartialEq> crate::_Keyword<T> for &[T] {
-    fn startComparation(&self, expectedLen: usize) -> Option<impl crate::_KeywordComparatorIterator<T>> {
+    fn startComparation(
+        &self,
+        expectedLen: usize,
+    ) -> Option<impl crate::_KeywordComparatorIterator<T>> {
         if (self.len() != expectedLen) {
             return Option::None;
         }
 
-        return Option::Some(_ArrayIteratorImpl { orig: self.iter() });
+        return Option::Some(self.iter());
     }
 }
 
-
 impl<T: PartialEq, const SZ: usize> crate::_Keyword<T> for &[T; SZ] {
-    fn startComparation(&self, expectedLen: usize) -> Option<impl crate::_KeywordComparatorIterator<T>> {
+    fn startComparation(
+        &self,
+        expectedLen: usize,
+    ) -> Option<impl crate::_KeywordComparatorIterator<T>> {
         if (self.len() != expectedLen) {
             return Option::None;
         }
 
-        return Option::Some(_ArrayIteratorImpl { orig: self.iter() });
+        return Option::Some(self.iter());
     }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 44abaaa..ddd803d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,11 +1,11 @@
 mod _keyword_impls;
 
 pub trait Predicate<C> {
-    fn check(&mut self, chr: &C) -> bool;
+    fn check(&mut self, chr: C) -> bool;
 }
 
-impl<C> Predicate<C> for fn(&C) -> bool {
-    fn check(&mut self, chr: &C) -> bool {
+impl<C> Predicate<C> for fn(C) -> bool {
+    fn check(&mut self, chr: C) -> bool {
         return self(chr);
     }
 }
@@ -13,7 +13,7 @@ impl<C> Predicate<C> for fn(&C) -> bool {
 pub trait Pos {}
 
 pub trait _KeywordComparatorIterator<C> {
-    fn consume(&mut self, c: &C) -> bool;
+    fn consume(&mut self, c: C) -> bool;
 }
 
 pub trait _Keyword<C> {