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Contents
# encoding: utf-8
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks for whitespace within string interpolations.
#
# @example
# # Good if EnforcedStyle is no_space, bad if space.
# var = "This is the #{no_space} example"
#
# # Good if EnforceStyle is space, bad if no_space.
# var = "This is the #{ space } example"
class SpaceInsideStringInterpolation < Cop
include ConfigurableEnforcedStyle
NO_SPACE_MSG = 'Space inside string interpolation detected.'.freeze
SPACE_MSG = 'Missing space around string interpolation detected.'.freeze
def on_dstr(node)
node.children.select { |n| n.type == :begin }.each do |begin_node|
final_node = begin_node.children.last
next unless final_node
interp = final_node.source_range
interp_with_surrounding_space = range_with_surrounding_space(interp)
if style == :no_space
if interp_with_surrounding_space != interp
add_offense(final_node, :expression, NO_SPACE_MSG)
end
elsif style == :space
if interp_with_surrounding_space.source != " #{interp.source} "
add_offense(final_node, :expression, SPACE_MSG)
end
end
end
end
private
def autocorrect(node)
new_source = (style == :no_space) ? node.source : " #{node.source} "
lambda do |corrector|
corrector.replace(range_with_surrounding_space(node.source_range),
new_source)
end
end
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems