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digitalmars.D.bugs - [Issue 18969] New: 'need this for <function>' when passing field or


          Issue ID: 18969
           Summary: 'need this for <function>' when passing field or
                    method as template parameter
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: simen.kjaras gmail.com

Consider this code:

class C { int n; }

void fun(alias fn)() {}

unittest {
    C c = new C();

Error message:
foo.d(7): Error: need this for fun of type pure nothrow  nogc  safe void()

What's actually needed here is for fun to get a context pointer, either to the
unittest block or to the instance of C.

Jun 11 2018