Smalltalk - Re: Programmatic generation of new class

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Re: Programmatic generation of new class

Posted by Blondeau Vincent on Jul 29, 2016; 3:28pm
URL: https://forum.world.st/Programmatic-generation-of-new-class-tp4908659p4908683.html

Hi,

The parentheses are not useful here: the unary message send (asSymbol) is made before the keyword one (subclass:instanceVariableNames:classVariableNames:packageJ

I tried :

Object subclass: 'Foo' asSymbol instanceVariableNames: '' classVariableNames: '' package: 'AAA' asString

On a fresh Pharo5.0 image and it works nice.

Vincent

De : Pharo-users [mailto:[hidden email]] De la part de Mark Bratcher
Envoyé : vendredi 29 juillet 2016 17:00
À : Any question about pharo is welcome
Objet : Re: [Pharo-users] Programmatic generation of new class

Try putting parentheses around `aDescriptorSystemClassName asSymbol`:

descriptorSystem :=
DynamicDescriptorSystem subclass: (aDescriptorSystemClassName asSymbol)
instanceVariableNames: ''
classVariableNames: ''
package: packageName asString

On Fri, Jul 29, 2016 at 10:50 AM Brad Selfridge <[hidden email]> wrote:

I'm trying to programmatically generate a new class, but am getting the
following error:

DynamicDescriptorSystem class(Object)>>doesNotUnderstand:
#subclass:instanceVariableNames:classVariableNames:package:

This is the method that I'm trying to execute:

buildNewDescriptorSystemUsing: aDescriptorSystemClassName

descriptorSystem :=
DynamicDescriptorSystem subclass: aDescriptorSystemClassName asSymbol
instanceVariableNames: ''
classVariableNames: ''
package: packageName asString

I see examples of this all over Pharo and I copied this code almost
verbatim.

What am I doing wrong?

-----
Brad Selfridge
--
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