remove iter tree / parser

src/block.rs

@@ -7,7 +7,6 @@ use Container::*;
 use Leaf::*;
 
 pub type Tree = tree::Tree<Block, Atom>;
-pub type TreeIter<'t> = tree::Iter<'t, Block, Atom>;
 
 pub fn parse(src: &str) -> Tree {
     Parser::new(src).parse()
@@ -287,7 +286,7 @@ mod test {
     macro_rules! test_parse {
             ($src:expr $(,$($event:expr),* $(,)?)?) => {
                 let t = super::Parser::new($src).parse();
-            let actual = t.iter().map(|ev| (ev.kind, ev.span.of($src))).collect::<Vec<_>>();
+                let actual = t.map(|ev| (ev.kind, ev.span.of($src))).collect::<Vec<_>>();
                 let expected = &[$($($event),*,)?];
                 assert_eq!(actual, expected, "\n\n{}\n\n", $src);
             };

src/lib.rs

@@ -11,31 +11,6 @@ pub struct Block;
 
 const EOF: char = '\0';
 
-pub struct Parser<'s> {
-    src: &'s str,
-    tree: block::Tree,
-}
-
-impl<'s> Parser<'s> {
-    #[must_use]
-    pub fn new(src: &'s str) -> Self {
-        Self {
-            src,
-            tree: block::parse(src),
-        }
-    }
-
-    #[must_use]
-    pub fn iter(&self) -> Iter {
-        Iter {
-            src: self.src,
-            tree: self.tree.iter(),
-            parser: None,
-            inline_start: 0,
-        }
-    }
-}
-
 #[derive(Debug, PartialEq, Eq)]
 pub enum ListType {
     Unordered,
@@ -76,14 +51,26 @@ pub enum Event {
     Blankline,
 }
 
-pub struct Iter<'s> {
+pub struct Parser<'s> {
     src: &'s str,
-    tree: block::TreeIter<'s>,
+    tree: block::Tree,
     parser: Option<inline::Parser<'s>>,
     inline_start: usize,
 }
 
-impl<'s> Iterator for Iter<'s> {
+impl<'s> Parser<'s> {
+    #[must_use]
+    pub fn new(src: &'s str) -> Self {
+        Self {
+            src,
+            tree: block::parse(src),
+            parser: None,
+            inline_start: 0,
+        }
+    }
+}
+
+impl<'s> Iterator for Parser<'s> {
     type Item = Event;
 
     fn next(&mut self) -> Option<Self::Item> {
@@ -137,7 +124,7 @@ mod test {
     macro_rules! test_parse {
         ($($st:ident,)? $src:expr $(,$($token:expr),* $(,)?)?) => {
             #[allow(unused)]
-            let actual = super::Parser::new($src).iter().collect::<Vec<_>>();
+            let actual = super::Parser::new($src).collect::<Vec<_>>();
             let expected = &[$($($token),*,)?];
             assert_eq!(actual, expected, "\n\n{}\n\n", $src);
         };

src/tree.rs

@@ -16,25 +16,21 @@ pub struct Event<C, A> {
 #[derive(Debug, Clone)]
 pub struct Tree<C, E> {
     nodes: Vec<Node<C, E>>,
-}
-
-impl<C: Copy, E: Copy> Tree<C, E> {
-    fn new(nodes: Vec<Node<C, E>>) -> Self {
-        Self { nodes }
-    }
-
-    pub fn iter(&self) -> Iter<C, E> {
-        self.into()
-    }
-}
-
-pub struct Iter<'a, C, E> {
-    nodes: &'a [Node<C, E>],
     branch: Vec<NodeIndex>,
     head: Option<NodeIndex>,
 }
 
-impl<'a, C: Copy, E: Copy> Iterator for Iter<'a, C, E> {
+impl<C, E> Tree<C, E> {
+    fn new(nodes: Vec<Node<C, E>>) -> Self {
+        Self {
+            nodes,
+            branch: Vec::new(),
+            head: Some(NodeIndex::root()),
+        }
+    }
+}
+
+impl<C: Copy, E: Copy> Iterator for Tree<C, E> {
     type Item = Event<C, E>;
 
     fn next(&mut self) -> Option<Self::Item> {
@@ -69,16 +65,6 @@ impl<'a, C: Copy, E: Copy> Iterator for Iter<'a, C, E> {
     }
 }
 
-impl<'a, C, E> From<&'a Tree<C, E>> for Iter<'a, C, E> {
-    fn from(tree: &'a Tree<C, E>) -> Self {
-        Self {
-            nodes: &tree.nodes,
-            branch: Vec::new(),
-            head: Some(NodeIndex::root()),
-        }
-    }
-}
-
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 struct NodeIndex(std::num::NonZeroUsize);
 
@@ -199,7 +185,7 @@ impl<C: Copy + std::fmt::Display, E: Copy + std::fmt::Display> std::fmt::Display
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         const INDENT: &str = "  ";
         let mut level = 0;
-        for e in self.iter() {
+        for e in self.clone() {
             let indent = INDENT.repeat(level);
             match e.kind {
                 EventKind::Enter(container) => {