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From Edinson E. Padrón Urdaneta <edinson.padron.urdan...@gmail.com>
Subject Re: Problem using 'is' in a command chain
Date Wed, 28 Oct 2015 04:49:00 GMT
Well, I'm very new to groovy so I could be very wrong but `is` is a method
of `GroovyObjectSupport`, so maybe you are invoking that method in your DSL
without knowing that.

On Tue, Oct 27, 2015 at 10:47 PM, Marc Paquette <marcpa@mac.com> wrote:

> Playing with DSL here (going through chapter 19 of « Groovy In Action,
> second edition », well worth the read).  It seems that one cannot use the
> word ‘is’ to build a command chain dsl, but ‘IS’ or ‘Is’ or ‘iS’ are
ok… Or
> is it something I’m doing wrong ?
>
> ```
> [marcpa@MarcPaquette dsl]$ groovy --version
> Groovy Version: 2.4.3 JVM: 1.8.0_60 Vendor: Oracle Corporation OS: Mac OS X
> [marcpa@MarcPaquette dsl]$ cat chainWithLowerCaseIsFails.groovy
> def check(condition) {
>     [is: { bool ->
>         println "checking if $condition yields $bool, with 'is'"
>     },
>     IS: { bool ->
>         println "checking if $condition yields $bool, with 'IS'"
>     }]
> }
>
> cond = (1<2)
> check cond is true
> check cond IS true
> [marcpa@MarcPaquette dsl]$ groovy chainWithLowerCaseIsFails.groovy
> checking if true yields true, with 'IS'
> [marcpa@MarcPaquette dsl]$
> ```
>
> Marc Paquette
>
>

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