java expressions with binary operators in xbase not working

Question

I'm using xbase

grammar xolang.Xolang with org.eclipse.xtext.xbase.Xbase

and an

XBlockExpression

where I expect to write my code

When write an expression like

val c = 1 + 1

Then I get the following error

The method +(int) is undefined

The same happens with Strings. In fact it happens with every binary operator: ==, < , >, ... Now I know that xbase supports operator overloading, maybe that has something to do with it? (Maybe I still have to define somewhere that you can add numbers?)

score 3 · Accepted Answer · answered Aug 05 '13 at 07:56

3

I solved my problem.

You need to add the xbase.lib jarfile (the right version of course) to the buildpath of the project that uses your DSL.

answered Aug 05 '13 at 07:56

tgoossens

9,676
2
18
23

score 2 · Answer 2 · answered Nov 11 '17 at 10:37

2

If you wonder how you can easily add the xbase lib in Eclipse: Right Click on your Project that makes use of your DSL, select Build-Path->Add Libraries and choose XTend Library. The XTend Library includes the correct XBase Lib.

answered Nov 11 '17 at 10:37

Daniel Ludwig

89
3

java expressions with binary operators in xbase not working

2 Answers2