Re: Operator add not working

[Sebastian Zarnekow]

Hi,

thanks for your interest in Xtend.

The unary ++ and the binary += operator is currently not support in Xtend. Generally speaking, operators are different from Java since they are not hardcoded into the language but are backed by plain Java methods. Since ++ / += for integers have a complicated semantics regarding read / write and the used value, the are not yet implemented. You may want to follow https://bugs.eclipse.org/bugs/show_bug.cgi?id=379178

Best regards,

Sebastian

On 04.04.2013, at 18:20, regis...@gmail.com wrote:

Hi, I am trying to start using Xtend (already read the full documentation) but I am facing some problems. I am using Xtend 2.4 with Eclipse Juno R2 under Linux Mint Maya Kde (idk if this matters). I am writing this:

package prueba

class PruebaXtend {
    def static void main(String[] args) {
        var valor = 1
        valor++
        valor+=1
       
        println(valor)
    }
   
}

and eclipse will throw me errors in the "++" and in the "+=" . The message in the last one is "+= cannot be resolved". I tried writing the same in java:

package prueba;

public class Prueba {
    public static void main(String[] args) {
        int valor = 1;
        valor++;
        valor += 1;

        System.out.println(valor);
    }
}

and everything goes all right. What I am doing wrong? That was my first try in Xtend and I failed. I planned to start my new Android project using Xtend but I don't know if more of this weird errors will appear again.

I attached the image showing the errors in Eclipse. Notice the red underline under "++" and under "+="

Thanks for your help!

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