问题
This is a simple question, but I'm curious about the "right" way to line-wrap curried functions in Scala. For example, suppose I have the moderately long line (if it's not long enough, you can pretend there are more parameters):
def executeFooBarCommand(ce: CommandExecutor)(implicit ec: ExecutionContext): Future[FooBar] = {
//...
}
I have two problems regarding wrapping the long definition:
First, I'm not sure what the accepted best practice is for wrapping such lines (or even longer ones.
Second, most reasonable ways of wrapping the line seem to result and in "auto-rejoin" of the wrapped lines when I format in eclipse. I set eclipse never to join wrapped lines in java, and there doesn't seem to be a relevant setting in the scala IDE formatting section that I can find, so I'm not sure how to prevent the format command from joining these wrapped lines.
回答1:
Eclipse is based on scalariform, and so far it doesn't have this option. However, it can split parameters in the same parameter list, so you could try formatting it as:
def executeFooBarCommand(
ce: CommandExecutor)(implicit ec: ExecutionContext): Future[FooBar] = {
//...
}
来源：https://stackoverflow.com/questions/23839804/line-wrapping-long-curried-function-definitions-in-scala-with-scala-ide