Hi,
William Ivory <[email protected]> wrote:
> Hi,
>
> My colleagues and I are looking for clarification of the last point in
> Section 10 of YANG 1.0:
>
> ' In statements that have any data definition statements as
> substatements, those data definition substatements MUST NOT be
> reordered.'
>
> We understand that existing statements must not be reordered in a new
> revision of a YANG module, but we're not clear if new statements may
> be inserted between existing statements, or must always come at the
> 'end' of a list or container definition.
They can be inserted anywhere.
As Lada pointed out, this should be clarified in 6020bis. I will do:
OLD:
In statements that have any data definition statements as
substatements, those data definition substatements MUST NOT be
reordered.
NEW:
In statements that have any data definition statements as
substatements, those data definition substatements MUST NOT be
reordered. If new data definition statements are added, they can be
added anywhere between these substatement.
> A specific example we're
> concerned with is where a grouping is used, and then later that
> grouping has an extra element added, but the new node could also be
> added directly. Eg:
>
> Container foo {
> Leaf A
> Uses grouping B;
> Leaf C
> Leaf D
> }
>
> Is it valid in a new revision of the module to do the following, or
> must the order be A, B, C, D, E? What if grouping B has gained a new
> statement?
>
> Container foo {
> Leaf A
> Uses grouping B;
> Leaf C
> Leaf E < ---- ADDED
> Leaf D
> }
This is valid.
/martin
>
> Thanks,
>
> William
>
>
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