Where is the style guide's source?

[groovy]

Where is the style guide's source?

[anshbansal]

It would be nice if the button for editing on github is also added to this page. Else add an entry in README

[anshbansal]

"you may be surprise to see " => Should be surprised

[anshbansal]

"first the constructor is called, then the setters are called in turn" -> "the setters are called in the sequence in which they are specified in the map"

The sequence might matter in some cases. I am commenting as I keep on reading else I'll forget.

[anshbansal]

"Last but not least, prefer using single quoted strings when you need string constants". It would be good to add why this should be done. I think it is performance. Is there anything else?

[anshbansal]

assert 'foo' =~ pattern

It should be
assert 'foo' ==~ pattern

Running the first I got java.util.regex.Matcher[pattern=fo* region=0,3 lastmatch=]. Running the second I got true

[anshbansal]

case { it > 3 } should be case { it > 3 }:. Missing colon.

[anshbansal]

"If you don’t really care of the exception" => "care about the type of exception"

[anshbansal]

bump

[melix]

The docs are in https://github.com/apache/incubator-groovy/blob/master/src/spec/doc/style-guide.adoc

Regarding assert 'foo' =~ pattern, it is not really an error, because of Groovy truth.

[anshbansal]

@melix But wouldn't that be always true and hence beat the point of the assert?

[PascalSchumacher]

@anshbansal No, the groovy truth requires the matcher to have at least one match to be considered true:
assert ('a' =~ /a/)

If the matcher does not have a match it is considered false:

assert !('a' =~ /b/)

http://docs.groovy-lang.org/latest/html/documentation/#_matchers