But isn’t that just for safety. Meaning the unmarshall could use it as a
pointer via reflection and mutate it (but that is probably not what the caller
expects in Go) ?
> On Nov 19, 2018, at 2:04 PM, Ian Denhardt <i...@zenhack.net> wrote:
>
> From an implementation standpoint they are passed by reference (The
> representation is actually a pair (pointer to vtable, pointer to
> object), but from a semantic standpoint the difference still matters,
> because e.g. if the original value was a struct, it still can't be
> mutated. There are use cases for what Volker is asking about in the
> standard library, even:
>
> package json // import "encoding/json"
>
> func Unmarshal(data []byte, v interface{}) error
> Unmarshal parses the JSON-encoded data and stores the result in the value
> pointed to by v. If v is nil or not a pointer, Unmarshal returns an
> InvalidUnmarshalError.
>
> ...
>
> Quoting Robert Engels (2018-11-19 09:57:12)
>> Aren't all interface references passed as a pointer? It is a var that
>> contains a pointer to the struct and a concrete type of the struct?
>>
>> On Nov 19, 2018, at 8:45 AM, Volker Dobler
>> <[1]dr.volker.dob...@gmail.com> wrote:
>>
>>> Is there a way to force "SomeFunction" to take pointers only at
>> compile time?
>> No, sorry.
>> V.
>>
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