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Questions tagged [xtend]

Xtend is a statically typed programming language that transcompiles to Java. It aims to produce more readable code than traditional Java.

Xtend is a programming language that transcompiles to Java. It aims to produce more readable code than traditional Java by reducing the amount of boilerplate code. It is developed by the Eclipse foundation.

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Xtend: declare empty map as return statement

In an overridden method I'd like to return an empty map. How I'm trying to make it work: override myMethod() { #{} // cannot convert from Map to Map } And what is working for me but not so "Xtend-ish": override…
Adam Horvath
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Combining Sets in xtend

I have two sets: val Set setA = #{1, 2, 3} val Set setB = #{3, 4, 5} + setA I would expect setB to contain 1, 2, 3, 4, 5. However, the + operator returns an instance of Iterable, instead of a Set. Are there any xtend shortcuts…
wheeler
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Guice: Using injected class as local variable in default constructor

I have a Java class in a xtend file that uses Guice, like this: class myClass { @Inject private extension classA @Inject private extension classB // methods // ... } I want to add an integer field and modify the default constructor to set…
Renoa
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How to filter identical named attributes of classes

With a Xtend file, I am generating a hpp file including attributes of inputed object classes. The following code snippet writes all attributes related to the classes. «FOR o : myClass.objectClasses» Test::ObjectClassHandle…
User32516325
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Calling from Xtend to Java with multi-dimensional array parameters

I need to call a Java method from Xtend that expects a two dimensional array such as: javafunc (String [][] {{"0","1"}.{"2","3"}}) My initial thought is to write a Java static method that accepts a List of arrays, converts it to a two dimensional…
Jonathan
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Xtend: add indentation to template

I want to create a template that's indented 4 spaces, like below: def myMethod() ''' for (int i =0; i!= size; ++i) { doSomething(); } ''' But Xtend removes the 4 spaces before the for() and the closing '}'. How can I…
Adam Horvath
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Xtend - pop-off last character from template

I'm using Xtend template to generate list and I would like to pop-off the last comma from the generated sequence: «FOR link : links» «link.simpleName», «ENDFOR» Can I manipulate the StringConcatenation behind "on-the-fly"? «ENDFOR…
Adam Horvath
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How can I generate in Xtext with the the Xtend Generator code as it was written?

I have this grammar defined in Xtext and when generating code with Xtend I want to get the Selection Expression as it was written. So that when a selection expression like x = "abc" || (y="pqr" && z = "lmn") is written with that grammar, the…
user151387
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Generating Java code using Xtend and Sirius

So, my aim is to create graphical DSL. I created a ecore model using Eclipse Modeling Framework, after that I've used Sirius to create graphical modeling tool and I have problems with the last step which is generating Java code. I would like to use…
user777
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How to access instance variable of Java in DSL?

I have a data model(Car.java), source template(dsl file) and application program. Template Class Car.java public class Car { public String name; public int price; public Car() { } } Template file index.template …
user5158149
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Define the generator code location using gradle to build xtext and xtend

I'm trying to create a first project using xText and xTend building with gradle. I created the grammar following the guidance in the xText documentation and also created the xtend generators. In eclipse the code generates to src-gen folder as…
Hugo Dias
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Parsing URL parameter in Vaadin application

I apologize for this very open question, but I did already lots of Research/test, and I can't figure out, so just thought that someone maybe already experimented the same behavior. I have an URL as follow:…
hublo
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Is it possible to set auto-activation triggers for Xtend and other Xtext-generated languages?

In Eclipse, we can trigger Content-Assist automatically for Java for a given of characters, but I noticed that there is no such option in the Xtext generated languages or Xtend. Is it possible to set auto-activation triggers for these languages…
Hristo Vrigazov
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How do I include Xtext generator in my Maven project?

I am currently building a framework which would benefit from having a DSL for creating a configuration file, so I created one using Xtext. Now I want to add a dependency to the classes that I have created so that I can generate configurations at…
Hristo Vrigazov
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how to indent for tab space after writing a statement

How to get a tab space for beautification after writing a statement in Xtext. Here is my code is in Xtext grammar : Block: '_block' name=ID '_endblock' ; and UI template is override complete_BLOCK(EObject model,…
Chaitanya
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