[Issue 10728] New: A combination of implicit conversion and lambda call cannot be compiled

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=10728

           Summary: A combination of implicit conversion and lambda call
                    cannot be compiled
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: ttanjo at gmail.com


--- Comment #0 from Tomoya Tanjo <ttanjo at gmail.com> 2013-07-29 10:10:32 PDT ---
In the following code, function foo cannot be compiled but it should.

--- foo.d
string foo(char[] s) // It cannot be compiled
{
    return s ? (){ return s[0..$].dup; }() : null;
}

string bar(char[] s) // It can be compiled
{
    return s ? s[0..$].dup : null;
}
---

Output:
$ dmd -main -run foo.d
foo.d(3): Error: cannot implicitly convert expression (s ? delegate char[]()
{
return _adDupT(& _D11TypeInfo_Aa6__initZ, s[0LU..__dollar]);
}
() : null) of type char[] to string

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