Hello all,

Is there any reason why using,

    alias this.outer this;

should not be possible in nested classes?  Consider the following example:

//////////////////////////////////////////
import std.stdio;

class A
{
    class B
    {
        auto bar() @property
        {
            return this.outer.n;
        }
    }

    private int n;

    public B foo;

    this(int n)
    {
        this.n = n;
        this.foo = new B;
    }
}

void main()
{
    auto a = new A(22);

    writeln(a.foo.bar);
}
//////////////////////////////////////////

... which works fine; but if I replace the declaration of the nested class B with,

    class B
    {
        alias this.outer this;
        auto bar() @property
        {
            return n;
        }
    }

then I get a compiler error:

aliasouter.d(7): Error: semicolon expected to close alias declaration
aliasouter.d(7): Error: found ';' when expecting '('
aliasouter.d(8): Error: function declaration without return type. (Note that constructors are always named 'this')
aliasouter.d(9): Error: found '{' when expecting ')'
aliasouter.d(10): Error: semicolon expected following function declaration
aliasouter.d(10): Error: Declaration expected, not 'return'
aliasouter.d(23): Error: unrecognized declaration

Is there an actual reason why "alias this.outer this;" should not be allowed (in which case, surely the error message should be more explicit), or is this a bug?

Thanks and best wishes,

    -- Joe