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patch 9.1.0850: Vim9: cannot access nested object inside objects

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Problem:  Vim9: cannot access nested object inside objects
          (lifepillar, 91khr, mawkish)
Solution: Add support for accessing an object member using a "any"
          variable type (Yegappan Lakshmanan)

fixes: #11822
fixes: #12024
fixes: #12196
fixes: #12198
closes: #16029

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Yegappan Lakshmanan
2024-11-11 19:58:55 +01:00
committed by Christian Brabandt
parent 622f6f5b9a
commit 56d45f1b66
7 changed files with 523 additions and 46 deletions
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1
runtime/doc/tags
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@@ -9282,6 +9282,7 @@ o_CTRL-V motion.txt /*o_CTRL-V*
o_V motion.txt /*o_V*
o_object-select motion.txt /*o_object-select*
o_v motion.txt /*o_v*
obj-var-type-any vim9class.txt /*obj-var-type-any*
object vim9class.txt /*object*
object-const-variable vim9class.txt /*object-const-variable*
object-empty() vim9class.txt /*object-empty()*

29
runtime/doc/vim9class.txt
View File

@@ -1,4 +1,4 @@
*vim9class.txt* For Vim version 9.1. Last change: 2024 Apr 13
*vim9class.txt* For Vim version 9.1. Last change: 2024 Nov 11
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -873,6 +873,33 @@ Note that the method name must start with "new". If there is no method called
"new()" then the default constructor is added, even though there are other
constructor methods.
Using variable type "any" for an Object~
*obj-var-type-any*
You can use a variable declared with type "any" to hold an object. e.g.
>
vim9script
class A
var n = 10
def Get(): number
return this.n
enddef
endclass
def Fn(o: any)
echo o.n
echo o.Get()
enddef
var a = A.new()
Fn(a)
<
In this example, Vim cannot determine the type of the parameter "o" for
function Fn() at compile time. It can be either a |Dict| or an |Object|
value. Therefore, at runtime, when the type is known, the object member
variable and method are looked up. This process is not efficient, so it is
recommended to use a more specific type whenever possible for better
efficiency.
Compiling methods in a Class ~
*class-compile*
The |:defcompile| command can be used to compile all the class and object