I didn't see this explanation in the linked thread, but from what I've heard in situations where a symbol can be interpreted as a function or a Class, the rule that is used to choose between the cases is the initial uppercase letter. So "Foo" is the name of a class but "foo" is the name of a local symbol or function. That makes "String x" a variable declaration but "string x" a call to "string(x)".
Jason -----Original Message----- From: OC [mailto:[email protected]] Sent: Sunday, February 28, 2016 11:49 AM To: [email protected] Subject: Re: Optional parentheses for methods with all uppercase names We have bumped into this parser issue long long ago, see http://www.groovy-lang.org/mailing-lists.html#nabble-td5722268 All the best, OC On 27. 2. 2016, at 23:19, Bay Batu <[email protected]> wrote: > Hello, > > I tried it and it looks like an issue about first letter's case. > > For example, > > ********* > def Foo(a){ > print a > } > > Foo "berbat" > ********* > gives compilation error: unexpected token berbat > > But it does not give a compilation error when i change it like that. > > ********* > def fOo(a){ > print a > } > > fOo "berbat" > ********* > > /baybatu > > > > > > >> On Feb 28, 2016, at 00:08, [email protected] wrote: >> >> [First off I apologize for possibly reposting this question. My original >> posting never went out to the maillist due to unknown reasons. This is my >> second attempt. Sorry if you already read this before.] >> >> I am a developing a Groovy DSL to create Dockerfiles >> >> The format of a Dockerfile looks like: >> >> INSTRUCTION arguments >> >> Instructions are case-insensitive but convention is for them to be UPPERCASE. >> >> However Groovy doesn't seem to support optional parentheses if the method >> name is all uppercase: >> >> def FOOBAR(String msg) { >> println msg >> } >> FOOBAR "hello" >> >> groovyc: unexpected token: hello @ line 2, column 8. >> FOOBAR "hello" >> ^ >> >> Do you know of any way to get this to work or is this a known limitation of >> Groovy? >> >> I tried with Groovy version 2.4.5 >> >> If anyone has any insight, it would be very helpful. >> >> /matthias >> >> -- >> Matthias Grüter >> www.grueter.name // [email protected] > ---------------------------------------------------------------------- This email message and any attachments are for the sole use of the intended recipient(s). Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message and any attachments.
