[Issue 1310] New: alias opCall vs struct literal

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=1310

           Summary: alias opCall vs struct literal
           Product: D
           Version: 1.017
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla at digitalmars.com
        ReportedBy: lutger.blijdestijn at gmail.com


When a struct has opCall through an alias, it is not recognized if the aliased
symbol is a delegate (not as in a member function). Whether this construct is
legal or not, the current behaviour is inconsistent. The following compiles
without error but does not do what one expects.

This applies to dmd 1.014-dmd 1.018 and probably the 2.x branch too. 

struct A
{
    int delegate() foo;
    alias foo opCall; // not seen, see below
}

struct B
{
    int foo() { return 0; }
    alias foo opCall; // ok
}

void main()
{
    A a;
    B b;
    auto resultA = a();
    pragma(msg, typeof(resultA).stringof); // prints 'A', struct initializer
    auto resultB = b();
    pragma(msg, typeof(resultB).stringof); // prints 'int', recognizes opCall
}


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