| XPand: String concatination [message #61586] |
Sun, 24 May 2009 18:26  |
Eclipse User |
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In the XPand-Editor, I get an error when trying to concatenate a string
with a model-value. Here is my template:
«IMPORT otml»
«IMPORT uml»
«DEFINE main FOR Model»
«EXPAND showpackages FOREACH this.nestedPackage»
«ENDDEFINE»
«DEFINE showpackages FOR Package»
«FILE "\\" + this.name + "foo"» <---- ERROR HERE
test
«ENDFILE»
«ENDDEFINE»
I marked the line, where the error occurs. The problem is:
"Couldn't find operation '+(uml::String)' for type 'String'".
I tried explizit casting, but it did not work:
"«FILE "\\" + (String)this.name + "foo"»".
But it would work like that:
"«FILE "\\" + (String)this.name»".
While this does not work:
"«FILE "\\" + this.name»".
And another (for me) interesting fact: If I use the template by using
Xpand programmaticly, it works just fine. So why does the editor (and
problem-view) have problems?
Thank you for any help
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| Re: XPand: String concatination [message #61705 is a reply to message #61659] |
Mon, 25 May 2009 18:59  |
| Eclipse User |
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Hi Karsten,
> Change the order of the UML and EMF metamodel contributors in the
> project settings. UML must come first when using both, otherwise EMF
> wins and maps the String primitive type to an EClassType, but the UML
> typesystem recognizes the primitives and maps them to the builtin
> typesystem.
> ~Karsten
In "Project"->"Properties"->"Xtend/Xpand" I checked both "UML2 profiles"
and "EMF Metamodels" and put "UML2 profiles" up to first place. The
example I posted works then. But this does not work:
«IMPORT uml» <---- ERROR 1
«IMPORT otml»
«DEFINE createFile(String packageName) FOR TeamClass»
«FILE packageName + "\\" + this.name + ".java"» <---- ERROR 2
Team: «this.name»
«ENDFILE»
«ENDDEFINE»
«DEFINE createFile(String packageName) FOR PackageableElement»
«FILE packageName + "\\" + this.name + ".txt"» *
Else: «this.name»
«ENDFILE»
«ENDDEFINE»
Error 1: "Couldn't find operation '+(uml::String)' for type 'String'"
Error 2: "String expected!"
That is pretty strange, because only one (seemingly random) line is
affected. Without your solution, the line marked with "*" also had Error
1 (that error diesappeared).
> On 25.05.09 12:40, Jan KÂoehnlein wrote:
>> Hmm, looks like a bug in the tooling around the UML typesystem. I filed
>> a bug for that
>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=277666
>>
>> I hope we can fix it before the Galileo release.
>>
>> Regards
>> Jan
>>
>> Usul schrieb:
>>> In the XPand-Editor, I get an error when trying to concatenate a
>>> string with a model-value. Here is my template:
>>>
>>> «IMPORT otml»
>>> «IMPORT uml»
>>>
>>> «DEFINE main FOR Model»
>>> «EXPAND showpackages FOREACH this.nestedPackage» «ENDDEFINE»
>>>
>>> «DEFINE showpackages FOR Package»
>>> «FILE "\" + this.name + "foo"» <---- ERROR HERE
>>> test
>>> «ENDFILE»
>>> «ENDDEFINE»
>>>
>>> I marked the line, where the error occurs. The problem is: "Couldn't
>>> find operation '+(uml::String)' for type 'String'". I tried explizit
>>> casting, but it did not work: "«FILE "\" + (String)this.name +
>>> "foo"»". But it would work like that: "«FILE "\" +
>>> (String)this.name»". While this does not work: "«FILE "\" + this.name»".
>>>
>>> And another (for me) interesting fact: If I use the template by using
>>> Xpand programmaticly, it works just fine. So why does the editor (and
>>> problem-view) have problems?
>>>
>>>
>>>
>>> Thank you for any help
>>>
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