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encoding/gob: does not allow nil elements in arrays #1501

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rogpeppe opened this issue Feb 11, 2011 · 4 comments
Closed

encoding/gob: does not allow nil elements in arrays #1501

rogpeppe opened this issue Feb 11, 2011 · 4 comments
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FrozenDueToAge Unfortunate

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@rogpeppe
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This program prints "gob: encodeArray: nil element".

Nil pointers are allowed in structs; why not in arrays?

type X struct {
    I int
}

func main() {
    enc := gob.NewEncoder(new(bytes.Buffer))
    err := enc.Encode([]*X{&X{99}, nil})
    fmt.Println(err)
}
@rsc
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rsc commented Feb 11, 2011

Comment 1:

Owner changed to r...@golang.org.

Status changed to Accepted.

@robpike
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robpike commented Feb 12, 2011

Comment 2:

There are no pointers in the encoding, so the best it could do without an encoding
change is a zero value for the object, which is not the same thing.  It's not clear to
me what the right answer would be.

Status changed to Thinking.

@rsc
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rsc commented Dec 9, 2011

Comment 3:

Labels changed: added priority-later.

@robpike
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robpike commented Dec 16, 2011

Comment 4:

Status changed to Unfortunate.

@mikioh mikioh changed the title gob: does not allow nil elements in arrays encoding/gob: does not allow nil elements in arrays Feb 26, 2015
@golang golang locked and limited conversation to collaborators Jun 24, 2016
@rsc rsc unassigned robpike Jun 22, 2022
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@rogpeppe @rsc @robpike @gopherbot