Sha256: 7c4230ecf4a67fc83b6d3ec2782518d1200dda6d38d8a7cf25953b23326b32fe
Contents?: true
Size: 825 Bytes
Versions: 5
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Stored size: 825 Bytes
Contents
# encoding: utf-8
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.'
NODE_TYPES = [:return, :next, :break, :retry, :redo]
FLOW_COMMANDS = [:throw, :raise, :fail]
def on_begin(node)
expressions = *node
expressions.each_cons(2) do |e1, e2|
if NODE_TYPES.include?(e1.type) || flow_command?(e1)
warning(e2, :expression)
end
end
end
private
def flow_command?(node)
FLOW_COMMANDS.any? { |c| command?(c, node) }
end
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems