adam/vim
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

patch 9.0.1974: vim9: using contra-variant type-checks

Browse Source 
Problem:  vim9: using contra-variant type-checks (after v9.0.1959)
Solution: Use invariant type checking instead

closes: #13248

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
This commit is contained in:
Yegappan Lakshmanan
2023-10-02 21:43:58 +02:00
committed by Christian Brabandt
parent 6d11347260
commit b32064fedb
6 changed files with 58 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
runtime/doc/vim9class.txt
View File

@ -547,11 +547,9 @@ Object variables from the base class are all taken over by the child class. It
is not possible to override them (unlike some other languages).
*E1356* *E1357* *E1358*
Object methods of the base class can be overruled. The number of arguments
must be exactly the same. The method argument type can be a contra-variant
type of the base class method argument type. The method return value type can
be a covariant type of the base class method return value type. The method of
the base class can be called by prefixing "super.".
Object methods of the base class can be overruled. The signature (arguments,
argument types and return type) must be exactly the same. The method of the
base class can be called by prefixing "super.".
*E1377*
The access level of a method (public or private) in a child class should be