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digitalmars.D.bugs - [Issue 3642] New: Poor error message when using shared: function ___ not callable with argument types ___

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=3642

           Summary: Poor error message when using shared: function ___ not
                    callable with argument types ___
           Product: D
           Version: 2.036
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: jason.james.house gmail.com



17:41:40 PST ---
Sample code

==================
struct foo{
  void unsharedfunc(){}
    void sharedfunc() shared {}
}
void main(){
    foo unsharedvar;
    shared(foo) sharedvar;
    unsharedvar.sharedfunc();
    sharedvar.unsharedfunc();
}
==================

Output with dmd 2.037
(Bug report lists dmd 2.036 because 2.037 was not an option at the time)

$ dmd test.d
test.d(8): Error: function test.foo.sharedfunc () shared is not callable using
argument types ()
test.d(9): Error: function test.foo.unsharedfunc () is not callable using
argument types () shared


Here's the kind of error message I would expect to see
test.d(8): Error: Only shared types can call shared functions
test.d(9): Error: Shared types can only call shared functions

Maybe the function or variable name could be worked into the message, but
that's the essence of what should be displayed.

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Dec 23 2009
next sibling parent d-bugmail puremagic.com writes:
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Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugzilla digitalmars.com



13:22:46 PST ---
The function name is in the message already.

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Dec 25 2009
prev sibling next sibling parent d-bugmail puremagic.com writes:
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14:29:23 PST ---


 The function name is in the message already.


The function name isn't particularly important. The error message isn't
particularly clear about the misuse of shared.

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Dec 25 2009
prev sibling next sibling parent d-bugmail puremagic.com writes:
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Jason House <jason.james.house gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Poor error message when     |Poor error message:
                   |using shared: function ___  |function ___ not callable
                   |not callable with argument  |with argument types ___
                   |types ___                   |



21:02:22 PST ---
I just came across another example where this is poor.  No test case this time
;)

Here's the error message:
hb/search/factory.d(58): Error: function libego.adapter.move.compressedHash ()
is not callable using argument types ()

Any guesses what is wrong?  Calling a no argument function is not callable
using no arguments?  In this particular case, the instance of
libego.adapter.move is immutable and the compressedHash function is neither
marked as const nor immuatable.  The error message really should be better.

Example alternate error message:
hb/search/factory.d(58): Error: Can't call mutating function on an immutable
object.

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Dec 28 2009
prev sibling next sibling parent d-bugmail puremagic.com writes:
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Jacob Carlborg <doob me.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |doob me.com
            Version|2.036                       |future



I've hit this error a couple of times and it can be really annoying. I always
think I'm missing an argument. For example:

module test;

struct Foo
{
    void foo () const
    {
        auto b = bar;
    }

    bool bar ()
    {
        return false;
    }
}

Compile the above code with DMD 2.060 results in:

Error: function test.Foo.bar () is not callable using argument types ()

If I add parentheses when calling "bar", I get a better error message:

Error: function test.Foo.bar () is not callable using argument types () const

Where it actually mentions "const". Although the error message could be even
better than this.

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Aug 16 2012
prev sibling parent d-bugmail puremagic.com writes:
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Andrej Mitrovic <andrej.mitrovich gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |andrej.mitrovich gmail.com
         Resolution|                            |DUPLICATE



13:45:29 PST ---
*** This issue has been marked as a duplicate of issue 1730 ***

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