Highlighting of arguments to by-name parameters

In Scala it’s not always obvious when some expression is an argument to a by-name parameter. New highlighting helps to easily spot such expression.

Here’s how it works:

You may also gray-out literals if you wish (disabled by default):

Block expressions are supposed to be called by-name, so, by default, there’s no such highlighting for them:

However, you may turn it on:

The highlighting also works with implicit conversions that use by-name parameter:

Here’s the definition of implicit conversion:

About Pavel Fatin

Programming enthusiast, technology advocate. IntelliJ Scala plugin developer at JetBrains, https://pavelfatin.com
This entry was posted in Uncategorized. Bookmark the permalink.

One Response to Highlighting of arguments to by-name parameters

  1. Carlos Fau says:

    Hi Pavel,

    Do you is there is a possibility to choose the color used to “highlight” the “by-name” used?


Leave a Reply

Your email address will not be published. Required fields are marked *