Green.Rules.Naming.PredicateFunctions (green v0.2.0)

This rule checks that predicate functions have ? suffix and guard-style macros use is_ prefix.

Configuration

This rule is enabled by default, but can be disabled globally in the configuration file.

The rule can also be configured to ignore specific files, or specific lines in specific files. This is useful for cases where applying the rule would be problematic.

In .formatter.exs:

  green: [
    predicate_functions: [
      enabled: *true | false,
      except: [
        "path/to/file.exs",
        {"path/to/other_file.exs", 42},
        {"path/to/yet_another_file.exs", [10, 20, 30]}
      ]
    ]
  ]