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# frozen_string_literal: true
module RuboCop
module AST
# A node extension for `resbody` nodes. This will be used in place of a
# plain node when the builder constructs the AST, making its methods
# available to all `resbody` nodes within RuboCop.
class ResbodyNode < Node
# Returns the body of the `rescue` clause.
#
# @return [Node, nil] The body of the `resbody`.
def body
node_parts[2]
end
# Returns an array of all the exceptions in the `rescue` clause.
#
# @return [Array<Node>] an array of exception nodes
def exceptions
exceptions_node = node_parts[0]
if exceptions_node.nil?
[]
elsif exceptions_node.array_type?
exceptions_node.values
else
[exceptions_node]
end
end
# Returns the exception variable of the `rescue` clause.
#
# @return [Node, nil] The exception variable of the `resbody`.
def exception_variable
node_parts[1]
end
# Returns the index of the `resbody` branch within the exception handling statement.
#
# @return [Integer] the index of the `resbody` branch
def branch_index
parent.resbody_branches.index(self)
end
end
end
end
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