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https://issues.apache.org/jira/browse/GROOVY-7074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14638895#comment-14638895
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Jochen Kemnade edited comment on GROOVY-7074 at 7/23/15 2:21 PM:
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No, the metaclass doesn't seem to change, at lest it's the same before and
after the script's execution. I think the reason is that for a Builder (and any
other object that overrides
{{groovy.lang.GroovyObjectSupport.invokeMethod(String, Object)}}), we need to
invoke the {{invokeMethod}} method on the Builder itself and not on the
metaClass. {{InvokerHelper#invokePogoMethod}} does that in line 920 (2.4.4).
was (Author: jkemnade):
No, the metaclass doesn't seem to change, at lest it's the same before and
after the script's execution. I think the reason is that for a Builder, we need
to invoke the {{invokeMethod}} method on the Builder itself and not on the
metaClass. {{InvokerHelper#invokePogoMethod}} does that in line 920 (2.4.4).
> DelegatingScript does not work with Builder as delegate
> -------------------------------------------------------
>
> Key: GROOVY-7074
> URL: https://issues.apache.org/jira/browse/GROOVY-7074
> Project: Groovy
> Issue Type: Bug
> Components: GroovyScriptEngine
> Affects Versions: 2.4.0-beta-3
> Environment: Windows 7, Linux Mint 16 Petra
> Reporter: Tobias Schulte
> Labels: patch-available
> Attachments:
> 0001-GROOVY-7074-fix-for-using-a-Builder-as-delegate-in-a.patch
>
>
> DelegatingScript does not work, if the delegate is e.g. a MarkupBuilder
> instance.
> import org.codehaus.groovy.control.CompilerConfiguration
> import groovy.xml.MarkupBuilder
> def cc = new CompilerConfiguration()
> cc.scriptBaseClass = DelegatingScript.class.name
> def sh = new GroovyShell(new Binding(), cc)
> def script = sh.parse('''
> foo {
> bar()
> }
> ''')
> def markupBuilder = new MarkupBuilder()
> script.setDelegate(markupBuilder)
> script.run()
> does throw a groovy.lang.MissingMethodException. If I change the script to
> delegate.foo {
> bar()
> }
> it works.
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