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| author | ljedrz <ljedrz@gmail.com> | 2018-07-26 17:11:10 +0200 |
|---|---|---|
| committer | ljedrz <ljedrz@gmail.com> | 2018-07-29 18:53:22 +0200 |
| commit | 59c8a279daf6912b99ba089ff6dafbfc3469831e (patch) | |
| tree | ab821f37fca36aa9730bed95c0cad5fbf3e9eaa4 /src/libsyntax_ext/deriving/decodable.rs | |
| parent | a5c2d0fffaaf0b764c01bc4066e51ffd475ceae9 (diff) | |
| download | rust-59c8a279daf6912b99ba089ff6dafbfc3469831e.tar.gz rust-59c8a279daf6912b99ba089ff6dafbfc3469831e.zip | |
Replace push loops with collect() and extend() where possible
Diffstat (limited to 'src/libsyntax_ext/deriving/decodable.rs')
| -rw-r--r-- | src/libsyntax_ext/deriving/decodable.rs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/libsyntax_ext/deriving/decodable.rs b/src/libsyntax_ext/deriving/decodable.rs index 1e04d8fa22a..c2b92944999 100644 --- a/src/libsyntax_ext/deriving/decodable.rs +++ b/src/libsyntax_ext/deriving/decodable.rs @@ -131,8 +131,8 @@ fn decodable_substructure(cx: &mut ExtCtxt, StaticEnum(_, ref fields) => { let variant = cx.ident_of("i"); - let mut arms = Vec::new(); - let mut variants = Vec::new(); + let mut arms = Vec::with_capacity(fields.len() + 1); + let mut variants = Vec::with_capacity(fields.len()); let rvariant_arg = cx.ident_of("read_enum_variant_arg"); for (i, &(ident, v_span, ref parts)) in fields.iter().enumerate() { |