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[Acceleo] Boolean operators in version 3.2 [message #901400]

Sat, 11 August 2012 19:08

Luís de Sousa

Messages: 214
Registered: July 2009

Senior Member

Dear all,

I need to perform a boolean comparison in an if block. Something like:

[if (class.getTaggedValue(class, 'Stereotype', 'initRandom') == 'TRUE')]

According to the 2.6 reference manual, the following operators should be available (page 9):

Quote:

== (equal), != (different), < (less than), <= (less or equal than), > (greater than >= (greater than or equal), || (logical or), && (logical and) and ! (negation)

But whenever I use them I get this error: "=" unexpected token(s). Am I doing something wrong? Or have the boolean operators changed since version 2.6?

Thank you,

Luís

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Re: [Acceleo] Boolean operators in version 3.2 [message #901455 is a reply to message #901400]

Sun, 12 August 2012 15:24

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

I've no idea about 2.x, but Acceleo 3.x complies with the OMG MOFM2T
specification that is based on OCL, for which the relational operators are

=, <>, <=, <, >, >=

and the literals are

true, false

Regards

Ed Willink

On 11/08/2012 20:08, Luís de Sousa wrote:
> Dear all,
>
> I need to perform a boolean comparison in an if block. Something like:
>
> [if (class.getTaggedValue(class, 'Stereotype', 'initRandom') == 'TRUE')]
>
> According to the 2.6 reference manual, the following operators should
> be available (page 9):
>
> Quote:
>> == (equal), != (different), < (less than), <= (less or equal than), >
>> (greater than >= (greater than or equal), || (logical or), &&
>> (logical and) and ! (negation)
>
>
> But whenever I use them I get this error: "=" unexpected token(s). Am
> I doing something wrong? Or have the boolean operators changed since
> version 2.6?
>
> Thank you,
>
> Luís
>
>

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Re: [Acceleo] Boolean operators in version 3.2 [message #901522 is a reply to message #901455]

Mon, 13 August 2012 08:44

Stephane Begaudeau

Messages: 458
Registered: April 2010
Location: Nantes (France)

Senior Member

Hi,

The answer provided by Ed is correct "==" is not valid in Acceleo 3 (use "=" instead). Acceleo 2.x and Acceleo 3.x do not use the same languages so there are some differences. You can have a look at the documentation of the language and all its available operations.

Regards,

Stephane Begaudeau, Obeo

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