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all: prefer strings.IndexByte over strings.Index

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strings.IndexByte was introduced in go1.2 and it can be used
effectively wherever the second argument to strings.Index is
exactly one byte long.

This avoids generating unnecessary string symbols and saves
a few calls to strings.Index.

Change-Id: I1ab5edb7c4ee9058084cfa57cbcc267c2597e793
Reviewed-on: https://go-review.googlesource.com/65930
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Marvin Stenger 2017-09-21 19:01:27 +02:00 • committed by Ian Lance Taylor
parent 5e92c41128
commit f22ba1f247
55 changed files with 81 additions and 81 deletions
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8
src/cmd/cgo/gcc.go
View file

@ -204,7 +204,7 @@ func (p *Package) loadDefines(f *File) {
line = strings.TrimSpace(line[8:])
var key, val string
spaceIndex := strings.Index(line, " ")
spaceIndex := strings.IndexByte(line, ' ')
tabIndex := strings.Index(line, "\t")
if spaceIndex == -1 && tabIndex == -1 {
@ -364,11 +364,11 @@ func (p *Package) guessKinds(f *File) []*Name {
continue
}
c1 := strings.Index(line, ":")
c1 := strings.IndexByte(line, ':')
if c1 < 0 {
continue
}
c2 := strings.Index(line[c1+1:], ":")
c2 := strings.IndexByte(line[c1+1:], ':')
if c2 < 0 {
continue
}
@ -2538,7 +2538,7 @@ func fieldPrefix(fld []*ast.Field) string {
if strings.HasPrefix(n.Name, "orig_") || strings.HasPrefix(n.Name, "_") {
continue
}
i := strings.Index(n.Name, "_")
i := strings.IndexByte(n.Name, '_')
if i < 0 {
continue
}