Delayed const variable initialization

[Yuxuan Shui via Digitalmars-d-learn]

On Monday, 13 July 2015 at 08:55:00 UTC, ketmar wrote:
> On Mon, 13 Jul 2015 07:11:32 +0000, Yuxuan Shui wrote:
>
>> How can I do something like this?
>> 
>> const(A) x;
>> if (condition) {
>>    x = func1();
>> } else {
>>    x = func2();
>> }
>> 
>> This is a valid use case, and to make this work I'll have to 
>> use Rebindable, which is really inconvenient.
>
> p.s. also, this is not "initialization", but "assignment". `x` 
> is initialized to default value here, and then compiler will 
> not allow assignments. unlike c/c++, in D variables are always 
> initialized.

IMO this is too restrictive. Can't we just spit compile error for 
uses before initialization, and allow const variables to be 
initialized somewhere other than where it is defined?