Re: Getting a String Literal From an Aliased Template Mixin Parameter

[Anonymouse via Digitalmars-d-learn]

On Thursday, 15 September 2016 at 00:15:42 UTC, jsako wrote:
I was making a quick mocking infrastructure for internal mocks 
so I wouldn't have to pass in objects to constructors all the 
time and came up with this:

[...]

This works great as long as there is only one mock object. I 
thought about using string mixins to generate the properties on 
a per-variable basis, but the problem is that I can't figure 
out how to get the string of the variable name from the aliased 
template mixin parameter. Is there a way to do this?

If not, I'll have to pass in the strings of the variables 
seperately (as in: mixin internalMockRig!(thing, "thing", 
testThing, "testThing", testThingMock, "testThingMock"); ), but 
that seems inelegant (and a bit error prone).

You mean, the literal string name of the original symbol you 
passed as an alias? If so then you want the .stringof property.

void main () {
        int first;
        bool second;
        string third;
        
        mixin Foo!(first, second, third);
}

mixin template Foo(alias abc, alias def, alias ghi)
{
        static assert(abc.stringof == "first");
        static assert(def.stringof == "second");
        static assert(ghi.stringof == "third");
}