[Issue 14057] New: opSlice not working correctly with AliasThis

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=14057

          Issue ID: 14057
           Summary: opSlice not working correctly with AliasThis
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: DMD
          Assignee: nobody at puremagic.com
          Reporter: jakobovrum at gmail.com

The below code should work, but doesn't:

---
struct Wrapper
{
    int[] subType;
    alias subType this;

    Wrapper opSlice(size_t, size_t)
    {
        return this;
    }
}

void main()
{
    auto w = Wrapper();
    Wrapper w2 = w[0 .. 1337];
}
---
test.d(15): Error: cannot implicitly convert expression (w.subType[0..1337]) of
type int[] to Wrapper
---

The subtype with slice capabilities seems to get priority. This also happens if
the subtype is another struct with opSlice.

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