• d-bugmail puremagic.com Aug 01 2009
• d-bugmail puremagic.com Aug 01 2009
• d-bugmail puremagic.com Feb 05 2010
• d-bugmail puremagic.com Feb 05 2010

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=3221

           Summary: Array extension methods require parentheses
           Product: D
           Version: 2.032
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: johnch_atms hotmail.com


Free functions can be used as methods of an array if the first argument in the
function definition is an array. For example:

  int indexOf(T)(T[] array, T value) {...}

  int[] ints = getInts();
  int i = ints.indexOf(2);

However, when the array argument is called without parameters, the expression
fails to compile, as this example shows.

  string[] split(string s, string sep) { ... }

  class Person {

    string name_;

    string name() { return name_; }

  }

  auto person = getPerson();
  string[] firstAndLast = person.name.split(" ");

The above line will only compile if it is changed to:

  string[] firstAndList = person.name().split(" ");

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=3221





--- Comment #1 from johnch_atms hotmail.com  2009-08-01 03:52:51 PDT ---
(In reply to comment #0)
 Free functions can be used as methods of an array if the first argument in the
 function definition is an array. For example:
   int indexOf(T)(T[] array, T value) {...}
   int[] ints = getInts();
   int i = ints.indexOf(2);
 However, when the array argument is called without parameters, the expression
 fails to compile, as this example shows.
   string[] split(string s, string sep) { ... }
   class Person {
     string name_;
     string name() { return name_; }
   }
   auto person = getPerson();
   string[] firstAndLast = person.name.split(" ");
 The above line will only compile if it is changed to:
   string[] firstAndList = person.name().split(" ");


Oops, I meant to say: However, when the array argument is called without
parentheses, the expression fails to compile...

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=3221


Witold Baryluk <baryluk smp.if.uj.edu.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |baryluk smp.if.uj.edu.pl


--- Comment #2 from Witold Baryluk <baryluk smp.if.uj.edu.pl> 2010-02-05
06:22:09 PST ---
One should possibly add  property for such function, so it will be possible tu
use such function not only as method but also as getter. Unfortunetly it isn't
yet implemented.

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--- Comment #3 from Witold Baryluk <baryluk smp.if.uj.edu.pl> 2010-02-05
06:24:01 PST ---
Similary to the bug3771

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