80 lines
1.7 KiB
Ruby
80 lines
1.7 KiB
Ruby
# frozen_string_literal: true
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# This cop enforces the enum value conventions from the enum style guide:
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# https://docs.gitlab.com/ee/development/api_graphql_styleguide.html#enums
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#
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# @example
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#
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# # bad
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# class BadEnum < BaseEnum
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# graphql_name 'Bad'
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#
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# value 'foo'
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# end
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#
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# class UngoodEnum < BaseEnum
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# graphql_name 'Ungood'
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#
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# ['bar'].each do |val|
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# value val
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# end
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# end
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#
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# # good
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# class GoodEnum < BaseEnum
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# graphql_name 'Good'
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#
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# value 'FOO'
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# end
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#
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# class GreatEnum < BaseEnum
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# graphql_name 'Great'
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#
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# ['bar'].each do |val|
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# value val.upcase
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# end
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# end
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module RuboCop
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module Cop
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module Graphql
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class EnumValues < RuboCop::Cop::Base
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MSG = "Enum values must either be an uppercase string literal or uppercased with the `upcase` method. " \
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"See https://docs.gitlab.com/ee/development/api_graphql_styleguide.html#enums"
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def_node_matcher :enum_value, <<~PATTERN
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(send nil? :value $_ $...)
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PATTERN
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def_node_search :deprecated?, <<~PATTERN
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(hash <(pair (sym :deprecated) _) ...>)
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PATTERN
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def_node_matcher :upcase_literal?, <<~PATTERN
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(str #upcase?)
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PATTERN
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def_node_matcher :upcase_method?, <<~PATTERN
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`(send _ :upcase)
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PATTERN
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def on_send(node)
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value_node, params = enum_value(node)
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return unless value_node
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return if params.any? { deprecated?(_1) }
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return if upcase_literal?(value_node) || upcase_method?(value_node)
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add_offense(value_node)
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end
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private
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def upcase?(str)
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str == str.upcase
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end
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end
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end
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end
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end
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