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Use slice instead of Vec

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This commit is contained in:
Edwin Cheng 2019-05-23 21:05:22 +08:00
parent 27ae626cfb
commit 63b67134fd
1 changed files with 4 additions and 4 deletions
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8
crates/ra_tt/src/buffer.rs
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@ -29,21 +29,21 @@ impl TokenBuffer {
pub fn new(tokens: &[TokenTree]) -> TokenBuffer { pub fn new(tokens: &[TokenTree]) -> TokenBuffer {
let mut buffers = vec![]; let mut buffers = vec![];
let idx = TokenBuffer::new_inner(tokens.to_vec(), &mut buffers, None); let idx = TokenBuffer::new_inner(tokens, &mut buffers, None);
assert_eq!(idx, 0); assert_eq!(idx, 0);
TokenBuffer { buffers } TokenBuffer { buffers }
} }
fn new_inner( fn new_inner(
tokens: Vec<TokenTree>, tokens: &[TokenTree],
buffers: &mut Vec<Box<[Entry]>>, buffers: &mut Vec<Box<[Entry]>>,
next: Option<EntryPtr>, next: Option<EntryPtr>,
) -> usize { ) -> usize {
let mut entries = vec![]; let mut entries = vec![];
let mut children = vec![]; let mut children = vec![];
for (idx, tt) in tokens.into_iter().enumerate() { for (idx, tt) in tokens.iter().cloned().enumerate() {
match tt { match tt {
TokenTree::Leaf(leaf) => { TokenTree::Leaf(leaf) => {
entries.push(Entry::Leaf(leaf)); entries.push(Entry::Leaf(leaf));
@ -61,7 +61,7 @@ impl TokenBuffer {
for (child_idx, subtree) in children { for (child_idx, subtree) in children {
let idx = TokenBuffer::new_inner( let idx = TokenBuffer::new_inner(
subtree.token_trees.clone(), &subtree.token_trees,
buffers, buffers,
Some(EntryPtr(EntryId(res), child_idx + 1)), Some(EntryPtr(EntryId(res), child_idx + 1)),
); );