Editing Classdef

=== Supported Features ===

==== Properties ====

Classdef properties are supported but not all attributes are implemented.

{| class="wikitable"
|-
! 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 ====

Classdef methods are supported but not all attributes are fully implemented.

{| class="wikitable"
|-
! style="text-align:left;"| Attribute
! Support
! Notes
|-
|Abstract
|Partial
|See bug report {{bug|51377}}
|-
|Access
|Yes
|
|-
|Hidden
|Yes
|
|-
|Sealed
|Yes
|
|-
|Static
|Yes
|
|}

=== Features that are not implemented ===

==== enumeration ====

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}}.

==== events and listeners ====

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}}.

=== Open Bug Reports for Other Issues ===

==== Issues with basic classdef functionality ====

* [https://savannah.gnu.org/bugs/?51659 51659] Calling 'methods' on self causes syntax error
* [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 Octave ===

* [https://hg.savannah.gnu.org/hgweb/octave/file/tip/scripts/miscellaneous/inputParser.m inputParser.m]
* [https://hg.savannah.gnu.org/hgweb/octave/file/tip/scripts/web/weboptions.m weboptions.m]
* [https://hg.savannah.gnu.org/hgweb/octave/file/tip/scripts/%2Bcontainers/Map.m +containers/Map.m]

[[Category:Development]]