rust/library/proc_macro/src/bridge/buffer.rs, branch 1.78.0

Inline `bridge::Buffer` methods.

2022-05-31T23:21:35+00:00

This fixes a performance regression caused by making `Buffer` non-generic in #97004.

Make `Buffer` non-generic.

2022-05-27T05:58:35+00:00

`u8` is the only type that makes sense for `T`, as demonstrated by the fact that several impls and functions are hardwired to `Buffer`.

proc_macro/bridge: Remove dead code Slice type

2021-07-01T17:20:57+00:00

See https://github.com/rust-lang/rust/pull/85390#discussion_r662464868

Write primitive types via array buffers

2021-05-29T16:52:06+00:00

This allows a more efficient implementation (avoiding a fallback to memmove, which is not optimal for short writes). This saves 0.29% on diesel.

Switch to reserve over extend_from_slice

2021-05-29T16:45:07+00:00

This is a 0.15% win on diesel.

Specialize single-element writes to buffer

2021-05-29T16:45:07+00:00

copy_from_slice generally falls back to memcpy/memmove, which is much more expensive than we need to write a single element in. This saves 0.26% instructions on the diesel benchmark.

mv std libs to library/

2020-07-28T00:51:13+00:00