Sha256: b2d15d1c20a4e5acd16731e9a6a96a92d5b4ccf46456b3eb6888cc52004162b9
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Size: 870 Bytes
Versions: 14
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Stored size: 870 Bytes
Contents
# encoding: utf-8
# frozen_string_literal: true
module RuboCop
module Cop
module Lint
# This cop checks for unreachable code.
# The check are based on the presence of flow of control
# statement in non-final position in *begin*(implicit) blocks.
class UnreachableCode < Cop
MSG = 'Unreachable code detected.'.freeze
NODE_TYPES = [:return, :next, :break, :retry, :redo].freeze
FLOW_COMMANDS = [:throw, :raise, :fail].freeze
def on_begin(node)
expressions = *node
expressions.each_cons(2) do |e1, e2|
next unless NODE_TYPES.include?(e1.type) || flow_command?(e1)
add_offense(e2, :expression)
end
end
private
def flow_command?(node)
FLOW_COMMANDS.any? { |c| node.command?(c) }
end
end
end
end
end
Version data entries
14 entries across 14 versions & 2 rubygems