Re: alias this on module

[Steven Schveighoffer via Digitalmars-d]

On 4/30/17 7:59 PM, Jonathan Marler wrote:
On Sunday, 30 April 2017 at 23:44:32 UTC, Steven Schveighoffer wrote:
On 4/30/17 7:35 PM, Jonathan Marler wrote:
Any reason why "alias this" doesn't work at the module level?  If I
recall correctly, a module is really just a "class" under the hood, but
when I tried to use it I got:
Error: alias this can only be a member of aggregate, not module
<module-name>


public import is to modules as alias this is to structs/classes :)


They're actually different.

//
// File: mymodule.d
//
module mymodule;

struct Foo
{
    int bar;
    void baz();
}
__gshared Foo foo;
alias foo this; // using "alias this" on a module

So you want to alias a struct to a module? That's different than what I 
thought, I thought you wanted to alias one module's members into another.

I can't see a reason why it couldn't be added as a feature. I admit I'm 
not seeing the benefit though.

You could simulate this via a mixin. e.g.:

void baz()
{
   foo.baz;
}

@property ref bar()
{
   return foo.bar;
}

-Steve