Apologies for not being more specific with a distilled exampled, the reason
is that I don't understand if this is a bug or expected. Agreed I should
have left the first lines out.
I think Michael Jones summarised it quite well:
> I think the problem is the unexpected type of g. In the "spread out"
switch clauses it is int/float/... but in the "all as one" case it is still
a generic interface.
And Jesse McNelis gave the answer I believe. I misread the specs,
specifically I confused the SimpleStmt with the TypeSwitchGuard.
I am aware that I comparisons here have to be done thoughtful, but the
behaviour between the different styles of switch cases is what felt
unexpected.
On Friday, December 30, 2016 at 5:48:57 PM UTC+1, Jan Mercl wrote:
>
> Can you please reduce the example to a single failing case and state
> what's the expected outcome instead? I, for one, fail to spot where the
> perceived problem is (when reading it on the phone).
>
> On Fri, Dec 30, 2016, 17:26 Uwe Dauernheim <u...@dauernheim.net
> <javascript:>> wrote:
>
>> It seem a float64 of value 0.0 as types interface{} can't be compared
>> equal to 0 in an exhaustive case clause type list, but can be compared
>> equal in almost any other scenario.
>>
>> https://play.golang.org/p/t2u2GGp565
>>
>> I find this unexpected. Could someone explain how case clause type lists
>> in type assertions work?
>>
>> The language specification states:
>>
>> > In clauses with a case listing exactly one type, the variable has that
>> type; otherwise, the variable has the type of the expression in the
>> TypeSwitchGuard.
>>
>> In the provided playground is no TypeSwitchGuard given, so this rule
>> should not affect behaviour.
>>
>>
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> --
>
> -j
>
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