• d-bugmail puremagic.com (39/39) Apr 22 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7970

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7970

           Summary:  property does not properly disambiguate delegate
                    properties
           Product: D
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: jmdavisProg gmx.com


--- Comment #0 from Jonathan M Davis <jmdavisProg gmx.com> 2012-04-22 16:19:41
PDT ---
This code:

import std.stdio;

alias void delegate() Callable;

class Test
{
     property Callable a()
    {
        return { writeln("hello"); };
    }
}

void main()
{
    auto t = new Test;
    t.a(); // does NOT say hello
    t.a()(); // this does
}

compiles and gives this output

hello


With -property, the second call to a should be illegal, but it still compiles.
And regardless of whether -property is used or not, hello only gets printed
once. The first call should call the delegate and print hello, but only the
second one is.

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