git.lizzy.rs Git - rust.git/commit

]> git.lizzy.rs Git - rust.git/commit

author	Nicholas Nethercote <nnethercote@mozilla.com>
	Mon, 10 Dec 2018 22:06:51 +0000 (09:06 +1100)
committer	Nicholas Nethercote <nnethercote@mozilla.com>
	Tue, 11 Dec 2018 21:38:08 +0000 (08:38 +1100)
commit	0f68749260d04b61dfe2b38dbc423aefe2914a58
tree	272c64f618d7b60c99b5795d749440e5e5ce0142	tree \| snapshot
parent	b755501043d5b27b39f94bcadd57c8d5dedfd6ba	commit \| diff

Use a `newtype_index!` within `Symbol`.

This shrinks `Option<Symbol>` from 8 bytes to 4 bytes, which shrinks
`Token` from 24 bytes to 16 bytes. This reduces instruction counts by up
to 1% across a range of benchmarks.

src/libsyntax/parse/token.rs		diff \| blob \| history
src/libsyntax_pos/lib.rs		diff \| blob \| history
src/libsyntax_pos/symbol.rs		diff \| blob \| history

Empowering everyone to build reliable and efficient software.

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