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| author | Nicholas Nethercote <nnethercote@mozilla.com> | 2016-10-21 10:31:53 +1100 |
|---|---|---|
| committer | Nicholas Nethercote <nnethercote@mozilla.com> | 2016-10-21 12:58:06 +1100 |
| commit | a935481ae9052d42c39af1d71c8e8e64750c9e02 (patch) | |
| tree | 1ac70607290d973353b44629b791b50011466ace | |
| parent | 0c429872a32c3005cf2b347025163361218634a4 (diff) | |
| download | rust-a935481ae9052d42c39af1d71c8e8e64750c9e02.tar.gz rust-a935481ae9052d42c39af1d71c8e8e64750c9e02.zip | |
Avoid an unnecessary clone in `macro_parser::parse`.
This avoids ~800,000 allocations in html5ever.
| -rw-r--r-- | src/libsyntax/ext/tt/macro_parser.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libsyntax/ext/tt/macro_parser.rs b/src/libsyntax/ext/tt/macro_parser.rs index ef2e466a043..a664e115ce4 100644 --- a/src/libsyntax/ext/tt/macro_parser.rs +++ b/src/libsyntax/ext/tt/macro_parser.rs @@ -425,8 +425,8 @@ pub fn parse(sess: &ParseSess, cur_eis.push(ei); } TokenTree::Token(_, ref t) => { - let mut ei_t = ei.clone(); if token_name_eq(t,&tok) { + let mut ei_t = ei.clone(); ei_t.idx += 1; next_eis.push(ei_t); } |