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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks for variable interpolation (like "#@ivar").
#
# @example
# # bad
# "His name is #$name"
# /check #$pattern/
# "Let's go to the #@store"
#
# # good
# "His name is #{$name}"
# /check #{$pattern}/
# "Let's go to the #{@store}"
class VariableInterpolation < Base
include Interpolation
extend AutoCorrector
MSG = 'Replace interpolated variable `%<variable>s` ' \
'with expression `#{%<variable>s}`.'
def on_node_with_interpolations(node)
var_nodes(node.children).each do |var_node|
add_offense(var_node) do |corrector|
corrector.replace(var_node, "{#{var_node.source}}")
end
end
end
private
def message(range)
format(MSG, variable: range.source)
end
def var_nodes(nodes)
nodes.select { |n| n.variable? || n.reference? }
end
end
end
end
end
Version data entries
35 entries across 35 versions & 3 rubygems