| commit | 618f88d847af9a060a14794859d4f1ea51a08006 | [log] [tgz] |
|---|---|---|
| author | Daniel Martí <mvdan@mvdan.cc> | Sun Dec 17 22:32:15 2017 +0000 |
| committer | Daniel Martí <mvdan@mvdan.cc> | Tue Feb 13 22:18:21 2018 +0000 |
| tree | 0f8ecfedc871e621f62720e08977a16376eeb786 | |
| parent | 0ed5bec951e3068df3201254f615b5ad1d429ee0 [diff] |
text/template: never call reflect.Zero(nil)
It makes no sense to try to get the zero value of a nil type, hence the
panic. When we have a nil type, use reflect.ValueOf(nil) instead.
This was showing itself if one used a missing field on the data between
parentheses, when the data was a nil interface:
t := template.Must(template.New("test").Parse(`{{ (.).foo }}`))
var v interface{}
t.Execute(os.Stdout, v)
Resulting in:
panic: reflect: Zero(nil) [recovered]
panic: reflect: Zero(nil)
Fixes #21171.
Change-Id: Ifcc4a0c67e6df425b65bc9f82fde6fcf03828579
Reviewed-on: https://go-review.googlesource.com/84482
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
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