locs_z_ =: 1 : 'm loc 18!:5 '''''
loc_z_=: (,&'_'@[ ,&'_'@, ":@>@])"1 0
'Do' loc 'z'
Do_z_
'Do' locs
Do_base_
mean_asd_ =: +/%#
data_asd_ =: 1 2 3
". ('mean' loc <'asd') , ' ' , ": data_asd_
2
inl_z_ =: (cocurrent@] ".@] [)"1 0
'mean data' inl <'asd'
2
If you are running a string (".) inside a locale, all variable names must be
localized. The inl verb lets you run code in another locale reference.
For your purposes, you probably want to have the caller use locs to fix its
variable locales as it builds the string to send to create.
----- Original Message -----
From: Jon Hough <[email protected]>
To: "[email protected]" <[email protected]>
Cc:
Sent: Monday, September 15, 2014 10:38 AM
Subject: [Jprogramming] OOJ and calling a verb from another locale
OOJ = object oriented J
I have a preexisting verb, for example lets call it myVerb =. +/ % #.
Next I define a class:
coclass 'MyClass'
create =: verb define myValue =: ". y
)
So, essentialy my value is going to run the command y, using verb ".
So perhaps I want y to by 'myVerb 1 2 3'
Then, hopefully myValue will be 2.
So I do
myObj =: conew 'MyClass'
create__myObj 'MyVerb 1 2 3'
However, I get a value error for MyVerb. I asusme this is because myVerb was
defined in a different locale.
I then tried create__myObj 'MyVerb_z_ 1 2 3'
Which also gives a value error.
By the way, what I am trying to do is pass a callback to the constructor of
MyClass, so I can execute an arbitrary function. I am using ". to call the
arbitrary function. I think this method of callbacks was shown in J for C.
So the question is, what is my code doing wrong?
Thanks.
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