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Check that object names are not too long. The length of an object name is defined as the length in characters, after removing extraneous parts:


object_length_linter(length = 30L)



maximum variable name length allowed.


  • generic prefixes for implementations of S3 generics, e.g. has length 8.

  • leading ., e.g. .my_hidden_function has length 18.

  • "%%" for infix operators, e.g. %my_op% has length 5.

  • trailing <- for assignment functions, e.g. my_attr<- has length 7.

Note that this behavior relies in part on having packages in your Imports available; see the detailed note in object_name_linter() for more details.

See also

linters for a complete list of linters available in lintr.