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=== Supported Features ===
+
This page is a stub. We should begin documenting what classdef is implemented and what is not.
  
==== Properties ====
+
==== not supported ====
  
Classdef properties are supported but not all attributes are implemented.
+
* enumeration
  
{| class="wikitable"
+
* build-in class as superclass
|-
+
** <source lang="octave" enclose="none">classdef nonsense < uint32</source>
! style="text-align:left;"| Attribute
 
! Support
 
! Notes
 
|-
 
|AbortSet
 
|No
 
|Property does not exist.
 
|-
 
|Abstract
 
|Yes
 
|
 
|-
 
|Access
 
|Partial
 
|
 
|-
 
|Constant
 
|Yes
 
|
 
|-
 
|Dependent
 
|Partial
 
|
 
|-
 
|GetAccess
 
|Partial
 
|
 
|-
 
|GetObservable
 
|No
 
|Property exists but is not used.  Requires events and listeners to be implemented in order to work properly.
 
|-
 
|Hidden
 
|Yes
 
|
 
|-
 
|NonCopyable
 
|No
 
|Property does not exist.
 
|-
 
|SetAccess
 
|Partial
 
|
 
|-
 
|SetObservable
 
|No
 
|Property exists but is not used.  Requires events and listeners to be implemented in order to work properly.
 
|-
 
|Transient
 
|No
 
|Property exists but is not used.
 
|}
 
  
==== Methods ====
+
* [http://www.mathworks.com/help/matlab/matlab_oop/redefining-concatenation-for-your-class.html concatenating objects] into [http://www.mathworks.com/help/matlab/matlab_oop/initialize-object-arrays.html array of objects]. Example:
 +
<source lang="octave">
 +
classdef MyClass < handle
 +
end
  
Classdef methods are supported but not all attributes are fully implemented.
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c = MyClass();
 +
cc = [c, c];  % won't work
 +
</source>
  
{| class="wikitable"
+
For now you can use a cell-array of objects instead:
|-
+
<source lang="octave">
! style="text-align:left;"| Attribute
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cc = {c, c};  % ok
! Support
+
</source>
! Notes
 
|-
 
|Abstract
 
|Partial
 
|See bug report {{bug|51377}}
 
|-
 
|Access
 
|Yes
 
|
 
|-
 
|Hidden
 
|Yes
 
|
 
|-
 
|Sealed
 
|Yes
 
|
 
|-
 
|Static
 
|Yes
 
|
 
|}
 
  
=== Features that are not implemented ===
+
* [http://www.mathworks.com/help/matlab/matlab_oop/mutable-and-immutable-properties.html Immutable property] set access. Example:
 +
<source lang="octave">
 +
classdef MyClass < handle
 +
    properties (SetAccess = immutable)
 +
        x
 +
    end
 +
    methods
 +
        function obj = MyClass()
 +
            x = rand();
 +
        end
 +
    end
 +
end
 +
</source>
  
==== enumeration ====
+
Use "private" properties as workaround.
  
Octave should be able to parse the enumeration section of a classdef definition but nothing is done with it. Progress on this feature is tracked in bug report {{bug|44582}}.
+
* Function handles to package methods and static class methods.
 +
For example if we have <code>+mypackage/myfunc.m</code>, creating a function handle as <code>fh = @mypackage.myfunc</code> won't work.
 +
As a workaround, we can create an indirection using an anonymous function <code>fh = @(varargin) mypackage.myfunc(varargin{:})</code>.
 +
Similarly for static class methods where <code>fh = @MyClass.myfunc</code> isn't yet supported.
  
==== events and listeners ====
+
* Defining [http://www.mathworks.com/help/matlab/matlab_oop/specifying-methods-and-functions.html#br2la89 local functions] in the same classdef-file is not working. For example, the following code gives a syntax/parse error:
 +
<source lang="octave">
 +
classdef MyClass
 +
    methods
 +
        function obj = MyClass()
 +
            myfunc()
 +
        end
 +
    end
 +
end
  
Octave should be able to parse the events section of a classdef definition but nothing is done with it.  Progress on this feature is tracked in bug report {{bug|56194}}.
+
function myfunc()
 +
    disp('myfunc')
 +
end
 +
</source>
  
=== Open Bug Reports for Other Issues ===
+
==== supported ====
  
==== Issues with basic classdef functionality ====
+
* methods
 +
** static
 +
** private
  
* [https://savannah.gnu.org/bugs/?51659 51659] Calling 'methods' on self causes syntax error
+
==== Classdef examples in the wild ====
* [https://savannah.gnu.org/bugs/?48682 48682] print_usage fails within classdef block
 
* [https://savannah.gnu.org/bugs/?49434 49434] which returns "built-in function" for classdef m-file
 
* [https://savannah.gnu.org/bugs/?48041 48041] classdef: `help myclass` messes up `help @myclass/method`
 
* [https://savannah.gnu.org/bugs/?43047 43047] help() does not see classdef files
 
* [https://savannah.gnu.org/bugs/?42620 42620] exist() does not use "class" argument
 
* [https://savannah.gnu.org/bugs/?53874 53874] doc_cache_create doesnt handle classdef documentation
 
* [https://savannah.gnu.org/bugs/?52096 52096] meta.class.fromName throws error when class name not found.
 
* [https://savannah.gnu.org/bugs/?48693 48693] classdef subsref method is not called with correct nargout value
 
* [https://savannah.gnu.org/bugs/?56006 56006] Object indexing: obj(1).property(end+1:n) - end is interpreted wrong
 
* [https://savannah.gnu.org/bugs/?55983 55983] 'x(ix) = []' deletion syntax does not work for objects
 
* [https://savannah.gnu.org/bugs/?55976 55976] cat, repmat, and reshape don't work for classdef objects
 
* [https://savannah.gnu.org/bugs/?55961 55961] properties function does not preserve order
 
* [https://savannah.gnu.org/bugs/?55768 55768] display of classdef object should not show private or protected properties
 
* [https://savannah.gnu.org/bugs/?55766 55766] properties function should not return Hidden properties
 
* [https://savannah.gnu.org/bugs/?55746 55746] interpreter fails to instantiate classdef with classdef properties
 
* [https://savannah.gnu.org/bugs/?52582 52582] using static method to initialize property value fails
 
* [https://savannah.gnu.org/bugs/?45833 45833] support load/save of classdef objects
 
 
 
==== Classdef and +package directories ====
 
 
 
* [https://savannah.gnu.org/bugs/?54941 54941] interpreter cannot find methods in files of classdefs in packages
 
 
 
==== Arrays of classdef objects ====
 
 
 
* [https://savannah.gnu.org/bugs/?44665 44665] error in concatenation of classdef objects
 
* [https://savannah.gnu.org/bugs/?53906 53906] Cannot make an object array with square brackets
 
* [https://savannah.gnu.org/bugs/?47755 47755] Access to object arrays
 
* [https://savannah.gnu.org/bugs/?47241 47241] classdef: assigning property of handle object in object array constructs new object
 
 
 
==== Debugger (fixes for these are in progress) ====
 
 
 
* [https://savannah.gnu.org/bugs/?46451 46451] unable to set breakpoints within classdef classes
 
* [https://savannah.gnu.org/bugs/?45404 45404] Breakpoints cannot be set in classdef methods or +package function files
 
 
 
==== Lower-priority issues ====
 
 
 
* [https://savannah.gnu.org/bugs/?55488 55488] Invalid use of colon char as classdef function's argument when subsref is overwritten
 
* [https://savannah.gnu.org/bugs/?54966 54966] Error when assigning array to an object implementing subsasgn() subscripted using "{}"
 
* [https://savannah.gnu.org/bugs/?54028 54028] copy of non-handle class instance is not deep
 
* [https://savannah.gnu.org/bugs/?53811 53811] cellfun does not find overloaded function with function name argument
 
* [https://savannah.gnu.org/bugs/?52989 52989] classdef: missing error messages on multiply defined properties
 
* <strike>[https://savannah.gnu.org/bugs/?52614 52614] setting properties of classdef object during construction with inheritance</strike>
 
* [https://savannah.gnu.org/bugs/?52582 52582] Dependent constant properties in classdef errors: no such file
 
* [https://savannah.gnu.org/bugs/?52123 52123] Indirect memory leak in cdef_manager::initialize ()
 
* [https://savannah.gnu.org/bugs/?51285 51285] max_recursion_depth error in classdef constructor
 
* [https://savannah.gnu.org/bugs/?50395 50395] subclassing a class that is also defined as a variable fails
 
* [https://savannah.gnu.org/bugs/?50011 50011] failure to report error on conflicting methods for classdef
 
* [https://savannah.gnu.org/bugs/?49379 49379] classdef constructor: .argn. loses first argument, inputname(n) returns inputname(n+1)
 
* [https://savannah.gnu.org/bugs/?55810 55810] sizeof() and whos() returns 0 bytes for classdef objects
 
* [https://savannah.gnu.org/bugs/?45893 45893] classdef properties are not reloaded when file is updated
 
* [https://savannah.gnu.org/bugs/?44643 44643] classdef handle object can go into an recursive loop with isequal(obj1,obj2) if both are self-referential
 
* [https://savannah.gnu.org/bugs/?55755 55755] mxGetProperty does not work with properties marked as Dependent
 
* [https://savannah.gnu.org/bugs/?55767 55767] classdef property should not be the same as classdef name (at least for Matlab compatibility)
 
* [https://savannah.gnu.org/bugs/?44035 44035] unable to subclass built-in types
 
 
 
==== Documentation ====
 
 
 
* [https://savannah.gnu.org/bugs/?50729 50729] Improve OOP documentation
 
* [https://savannah.gnu.org/bugs/?47908 47908] Octave:classdef-to-struct not documented in warning_ids.m
 
* [https://savannah.gnu.org/bugs/?44590 44590] More documentation for the current status of classdef implementation
 
 
 
=== Classdef examples in the wild ===
 
  
 
* http://hg.savannah.gnu.org/hgweb/octave/file/tip/scripts/general/inputParser.m
 
* http://hg.savannah.gnu.org/hgweb/octave/file/tip/scripts/general/inputParser.m
* http://hg.savannah.gnu.org/hgweb/octave/file/tip/scripts/%2Bcontainers/Map.m
 
 
* https://github.com/markuman/go-redis
 
* https://github.com/markuman/go-redis
* https://github.com/PetrKryslUCSD/FinEALE
 

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