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regexp: remove unreachable code

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Found running go vet on the package. It barks that
	regexp/backtrack.go:257: unreachable code
	regexp/backtrack.go:302: unreachable code

For #11041

Change-Id: I0f5ba0d6183108fba3d144991b826273db0ffb09
Reviewed-on: https://go-review.googlesource.com/19824
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Alberto Donizetti 2016-01-30 22:01:00 +01:00 committed by Brad Fitzpatrick
parent 4ded58bd5a
commit cd41db34bc
1 changed files with 0 additions and 2 deletions
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2
src/regexp/backtrack.go
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@ -254,7 +254,6 @@ func (m *machine) tryBacktrack(b *bitState, i input, pc uint32, pos int) bool {
}
panic("bad arg in InstCapture")
continue
case syntax.InstEmptyWidth:
if syntax.EmptyOp(inst.Arg)&^i.context(pos) != 0 {
@ -299,7 +298,6 @@ func (m *machine) tryBacktrack(b *bitState, i input, pc uint32, pos int) bool {
// Otherwise, continue on in hope of a longer match.
continue
}
panic("unreachable")
}
return m.matched