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The Go programming language
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chanxuehong bebe9aa423 go/token: slight performance improvement for IsIdentifier 
If name is empty or a keyword, we can skip the loop entirely.
Otherwise, we do the same amount of work as before.

Here is the benchmark result for go/parser:

name          old time/op    new time/op    delta
Parse-12        2.53ms ± 2%    2.47ms ± 1%  -2.38%  (p=0.000 n=9+10)
ParseOnly-12    1.97ms ± 1%    1.93ms ± 2%  -1.80%  (p=0.000 n=10+10)
Resolve-12       560µs ± 1%     558µs ± 1%    ~     (p=0.200 n=9+8)

name          old speed      new speed      delta
Parse-12      26.1MB/s ± 2%  26.8MB/s ± 1%  +2.44%  (p=0.000 n=9+10)
ParseOnly-12  33.6MB/s ± 1%  34.3MB/s ± 2%  +1.82%  (p=0.000 n=10+10)
Resolve-12     118MB/s ± 2%   119MB/s ± 1%    ~     (p=0.116 n=10+8)

Change-Id: I87ac9c2637a6c0e697382b74245ac88ef523bba7
GitHub-Last-Rev: 036bc38d83
GitHub-Pull-Request: golang/go#48534
Reviewed-on: https://go-review.googlesource.com/c/go/+/351389
Trust: David Chase <drchase@google.com>
Trust: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Robert Griesemer <gri@golang.org>
2022-03-02 11:28:40 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api runtime/debug: replace (*BuildInfo).Marshal methods with Parse and String 2022-02-09 19:44:03 +00:00
doc all: fix typos 2022-02-28 21:52:59 +00:00
lib/time lib/time, time/tzdata: update to 2021e 2021-11-11 05:16:39 +00:00
misc all: fix typos 2022-02-28 21:52:59 +00:00
src go/token: slight performance improvement for IsIdentifier 2022-03-02 11:28:40 +00:00
test go/types, types2: correctly consider ~ (tilde) in constraint type inference 2022-03-01 23:48:58 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: add Bharath Kumar Uppala (individual CLA) 2021-11-29 00:57:09 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00
CONTRIBUTING.md
CONTRIBUTORS CONTRIBUTORS: update for the Go 1.18 release 2022-02-28 15:43:07 +00:00
LICENSE
PATENTS
README.md README.md: update contribute URL 2021-09-30 13:33:21 +00:00
SECURITY.md

README.md

The Go Programming Language

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