condition_message

NoteAdded in 0.6.0

What it does

Checks for calls to stop() or warning() that contain paste0().

Why is this bad?

By default, stop() and warning() concatenate elements in the message without any separator. Using paste0() is therefore not needed.

Example

stop(paste0('hello ', 'there'))
warning(paste0('hello ', 'there'))

stop('hello ', 'there')
warning('hello ', 'there')