> On 19 Nov 2015, at 11:11, Ladislav Lhotka <[email protected]> wrote:
>
>>
>> On 19 Nov 2015, at 10:38, Martin Bjorklund <[email protected]> wrote:
>>
>> Andy Bierman <[email protected]> wrote:
>>> Hi,
>>>
>>> This text in 7.21.5 is not clear:
>>>
>>> A leaf that is a list key MUST NOT have a "when" statement.
>>>
>>> I think you mean that no when-stmt can use the key leaf as
>>> a context node.
>>>
>>> These are illegal in YANG 1.1 I think:
>>>
>>>
>>> augment /listX {
>>> when "foo";
>>> leaf key1 { ... }
>>> }
>>
>> Why would this be illegal? You didn't show the definition of listX,
>> but it cannot have "key1" as one of its keys.
>
> I think Andy has a point, here is a complete example:
>
> leaf foo {
> type empty;
> }
> list array {
> key "key1";
> leaf bar {
> type empty;
> }
> }
> augment "/array" {
> when "../foo";
> leaf key1 {
> type uint8;
> }
> }
>
> Without the "when" statement it is perfectly okay but here the presence of
> "foo" makes "key1" disappear but "array" remains.
s/presence/absence/ --------------------------------------------^^^^^^^^
Lada
>
>>
>>> OR
>>>
>>>
>>> list listX {
>>> key key1;
>>> uses grouping1 {
>>> when "foo";
>>> // leaf key1 added via grouping
>>> }
>>> }
>>
>> Why would this be illegal?
>
> Similar as above.
>
> Lada
>
>>
>>> There are more ways that the key-leaf can inherit a when-stmt
>>> but you get the idea.
>>
>> I don't think a key leaf can "inherit" a when statement.
>>
>>> The phrase "have a when-stmt" should be clear.
>>> It implies that the when-stmt is a sub-statement of the leaf-stmt
>>> but this is only 1 way the key leaf can be conditional.
>>
>>
>>
>> /martin
>>
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>
> --
> Ladislav Lhotka, CZ.NIC Labs
> PGP Key ID: E74E8C0C
>
>
>
>
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--
Ladislav Lhotka, CZ.NIC Labs
PGP Key ID: E74E8C0C
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