Eclipse Community Forums: TMF (Xtext) » [Xtend2] ?. operator for primitives

Help

Home

Home » Modeling » TMF (Xtext) » [Xtend2] ?. operator for primitives

Show: Today's Messages :: Show Polls :: Message Navigator

[Xtend2] ?. operator for primitives [message #682842]

Sun, 12 June 2011 08:12

Jos Warmer

Messages: 114
Registered: October 2010

Senior Member

Maybe this is already known, but the following code:

var String empty = null;
var int i = empty?.length

results in Java that has compilation error (cannot cast from null to int):

String empty = null;
int _length = empty==null?(int)null:empty.length();
int i = _length;

There should probably be a check that the return type of the ?.method() is nit a primitive type.

Report message to a moderator

(no subject) [message #682914 is a reply to message #682842]

Sun, 12 June 2011 12:33

Sebastian Zarnekow

Messages: 3118
Registered: July 2009

Senior Member

Hi Jos,

could you please add your example to this ticket:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=347175

Thanks,
Sebastian
--
Need professional support for Eclipse Modeling?
Go visit: http://xtext.itemis.com

Am 12.06.11 10:12, schrieb Jos Warmer:
> Maybe this is already known, but the following code:
> var String empty = null;
> var int i = empty?.length
>
> results in Java that has compilation error (cannot cast from null to int):
> String empty = null;
> int _length = empty==null?(int)null:empty.length();
> int i = _length;
>
> There should probably be a check that the return type of the ?.method()
> is nit a primitive type.

Report message to a moderator