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html/template: Clone an empty template leads to runtime panic #10879

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paradoxe opened this issue May 16, 2015 · 2 comments
Closed

html/template: Clone an empty template leads to runtime panic #10879

paradoxe opened this issue May 16, 2015 · 2 comments
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Go1.5

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@paradoxe
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Hi,
When executing:

t:= template.New("base")
c, err := t.Clone()

I get:

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x4b78dc]
goroutine 1 [running]:
text/template.(_Template).Clone(0xc20806a040, 0x5516a0, 0x0, 0x0)
/usr/local/go/src/text/template/template.go:78 +0x1cc
html/template.(_Template).Clone(0xc20803a5a0, 0x0, 0x0, 0x0)
/usr/local/go/src/html/template/template.go:193 +0x20d

I admit that it is an extreme use-case.

go version go1.4.2 linux/amd64

Many thanks
@syst3mw0rm
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https://go-review.googlesource.com/#/c/10240/

@gopherbot
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CL https://golang.org/cl/10240 mentions this issue.

@adg adg changed the title html/template Clone an empty template leads to runtime panic html/template: Clone an empty template leads to runtime panic May 19, 2015
@robpike robpike closed this as completed in 8801bdf Jun 1, 2015
@mikioh mikioh added this to the Go1.5 milestone Jun 2, 2015
@golang golang locked and limited conversation to collaborators Jun 25, 2016
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@mikioh @syst3mw0rm @paradoxe @gopherbot