Name lookups in D

[Steven Schveighoffer]

On 12/13/20 4:54 PM, kdevel wrote:
> On Friday, 11 December 2020 at 01:38:44 UTC, Adam D. Ruppe wrote:
> 
> [...]
> 
>> With a normal import, the module name is the only thing actually added 
>> to the scope. Everything in that module is found by walking the import 
>> chains after not finding it locally (unless you use `static import` 
>> which means it does not add it to the chain).
> 
> Just 'implemented' the following bug:
> 
> ~~~
> import std.conv;
> 
> class B {
> }
> 
> class D : B {
>     string text;
> }
> 
> void main ()
> {
>     B b = new D;
>     string s = b.text;
> }
> ~~~
> 
> Due to UFCS std.conv.text grabs the object. Only a `static import`
> or a selective import would reveal the problem during compile time.

This is expected behavior. B does not have a member named "text", and so 
it looks for a UFCS function to call and finds one.

Note that a static import means you have to use the FQN to call text 
(but text is perfectly fine via UFCS). However, a selective import would 
still call text as expected.

-Steve