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internal/lsp: handle out of range panic in template parsing 

Fixes golang/vscode-go#1548

Change-Id: I95911a417cecc514151e75a60253ef119803885e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/326089
Trust: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
This commit is contained in:
Rebecca Stambler 2021-06-08 11:40:16 -04:00
parent 716319fe59
commit 4e58f8f09d
1 changed files with 1 additions and 1 deletions
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2
internal/lsp/template/parse.go
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@ -86,6 +86,7 @@ func parseBuffer(buf []byte) *Parsed {
ans := &Parsed{
buf: buf,
check: -1,
nls: []int{-1},
}
if len(buf) == 0 {
ans.ParseErr = errors.New("empty buffer")
@ -103,7 +104,6 @@ func parseBuffer(buf []byte) *Parsed {
}
// at the cost of complexity we could fold this into the allAscii loop
ans.lines = bytes.Split(buf, []byte{'\n'})
ans.nls = []int{-1}
for i, p := range ans.buf {
if p == '\n' {
ans.nls = append(ans.nls, i)