.rubocop.yml

# .rubocop.yml
#
# Configuration for rubocop, a static code analyzer for Ruby.
#
# https://github.com/bbatsov/rubocop#configuration

AllCops:
  TargetRubyVersion: 2.3

inherit_from: .rubocop_todo.yml

Layout/HashAlignment:
  EnforcedColonStyle: table

# Layout/IndentationConsistency
#
# Use Rails-style access modifier indentation.
#
# Example:
# ```
# class Foo
#   def bar
#     puts 'bar'
#   end
#
#   private
#
#     def baz
#       puts 'baz'
#     end
# end
# ```
Layout/IndentationConsistency:
  EnforcedStyle: indented_internal_methods

# Prefer `alias_method`
#
# This is debated and a nuanced issue. More infomation:
# - http://stackoverflow.com/q/4763121
# - http://blog.bigbinary.com/2012/01/08/alias-vs-alias-method.html
# - https://ernie.io/2014/10/23/in-defense-of-alias/
# - https://github.com/bbatsov/ruby-style-guide#alias-method-lexically
# - https://github.com/bbatsov/ruby-style-guide#alias-method
#
# http://www.rubydoc.info/gems/rubocop/RuboCop/Cop/Style/Alias
Style/Alias:
  EnforcedStyle: prefer_alias_method

# TODO: Remove when Rubocop hits version 1.0.
Style/HashEachMethods:
  Enabled: true

# TODO: Remove when Rubocop hits version 1.0.
Style/HashTransformKeys:
  Enabled: true

# TODO: Remove when Rubocop hits version 1.0.
Style/HashTransformValues:
  Enabled: true

# Use '||' for `%Q` delimiters.
Style/PercentLiteralDelimiters:
  PreferredDelimiters:
    '%':  '||'
    '%Q': '||'

# Allow `%Q` when `%q` would do for better consistency.
Style/PercentQLiterals:
  Exclude:
    - 'test/test_rbst.rb'

# Permit redundant `%Q` literals in rest_rbst.rb for better consistency.
Style/RedundantPercentQ:
  Exclude:
    - 'test/test_rbst.rb'

# Prefer brackets for symbol arrays.
Style/SymbolArray:
  EnforcedStyle: brackets