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Merge pull request #10256 from SeekingMeaning/unless_multiple_conditions
rubocops: add `unless_multiple_conditions`
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,39 @@ | ||
# typed: strict | ||
# frozen_string_literal: true | ||
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module RuboCop | ||
module Cop | ||
module Style | ||
# This cop checks that `unless` is not used with multiple conditions. | ||
# | ||
# @api private | ||
class UnlessMultipleConditions < Cop | ||
extend T::Sig | ||
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MSG = "Avoid using `unless` with multiple conditions." | ||
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sig { params(node: RuboCop::AST::IfNode).void } | ||
def on_if(node) | ||
return if !node.unless? || (!node.condition.and_type? && !node.condition.or_type?) | ||
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add_offense(node, location: node.condition.source_range.with(begin_pos: node.loc.keyword.begin_pos)) | ||
end | ||
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sig { params(node: RuboCop::AST::IfNode).returns(T.proc.params(arg0: RuboCop::Cop::Corrector).void) } | ||
def autocorrect(node) | ||
lambda do |corrector| | ||
corrector.replace(node.loc.keyword, "if") | ||
corrector.replace(node.condition.loc.operator, node.condition.inverse_operator) | ||
[node.condition.lhs, node.condition.rhs].each do |subcondition| | ||
if !subcondition.source.start_with?("(") || !subcondition.source.end_with?(")") | ||
corrector.insert_before(subcondition, "(") | ||
corrector.insert_after(subcondition, ")") | ||
end | ||
corrector.insert_before(subcondition, "!") | ||
end | ||
end | ||
end | ||
end | ||
end | ||
end | ||
end |
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