Cannot alias null

[Andrew Edwards via Digitalmars-d-learn]

On 6/12/14, 4:29 PM, Ali Çehreli wrote:
> On 06/12/2014 01:26 PM, Tom Browder via Digitalmars-d-learn wrote:
>
>  > This will not compile:
>  >
>  >    alias blah = null;
>  >
>  > The dmd message are:
>  >
>  > di/test_hdr.d(10): Error: basic type expected, not null
>  > di/test_hdr.d(10): Error: semicolon expected to close alias declaration
>  > di/test_hdr.d(10): Error: Declaration expected, not 'null'
>  >
>  > Are there any other objects that cannot be aliased?
>
> alias works only with types. Being an expression (not an object), null
> cannot not work with alias.
>
> Ali
>

void foo() {}
alias bar = foo();

Am I just misunderstanding what is meant by types?