diff options
Diffstat (limited to 'compiler/rustc_serialize/src/serialize.rs')
| -rw-r--r-- | compiler/rustc_serialize/src/serialize.rs | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/compiler/rustc_serialize/src/serialize.rs b/compiler/rustc_serialize/src/serialize.rs index 377c364961b..567fe06109b 100644 --- a/compiler/rustc_serialize/src/serialize.rs +++ b/compiler/rustc_serialize/src/serialize.rs @@ -43,7 +43,6 @@ pub trait Encoder { fn emit_str(&mut self, v: &str); fn emit_raw_bytes(&mut self, s: &[u8]); - // Convenience for the derive macro: fn emit_enum_variant<F>(&mut self, v_id: usize, f: F) where F: FnOnce(&mut Self), @@ -51,17 +50,6 @@ pub trait Encoder { self.emit_usize(v_id); f(self); } - - // We put the field index in a const generic to allow the emit_usize to be - // compiled into a more efficient form. In practice, the variant index is - // known at compile-time, and that knowledge allows much more efficient - // codegen than we'd otherwise get. LLVM isn't always able to make the - // optimization that would otherwise be necessary here, likely due to the - // multiple levels of inlining and const-prop that are needed. - #[inline] - fn emit_fieldless_enum_variant<const ID: usize>(&mut self) { - self.emit_usize(ID) - } } // Note: all the methods in this trait are infallible, which may be surprising. |