Scoped Imports for Structs/Classes/Template Constraints

[Enamex via Digitalmars-d-learn]

On Monday, 31 August 2015 at 19:10:45 UTC, jmh530 wrote:
> module local;
>
> struct S { int a = 2; }
>
> module app;
>
> import local : S;
>
> void foo(S s)
> {
> 	import std.stdio : writeln;
> 	writeln(s.a);
> }
>
> void bar()
> {
> 	import std.stdio : writeln;
> 	import local : S;
> 	S s;
> 	writeln(s.a);
> }
>
> void main()
> {
> 	S s;
> 	foo(s);
> 	bar();
> }

You can't use it with foo(S) because the type is used /outside/ 
the scope of the function, in its head. You have to qualify it ( 
void foo(local.S s) )  or import the type as:

{ import local: S;
     void foo(S s) { ... }
}