class RubbyCop::Cop::Style::InfiniteLoop
Use `Kernel#loop` for infinite loops.
@example
# bad while true work end # good loop do work end
Constants
- LEADING_SPACE
- MSG
Public Instance Methods
on_until(node)
click to toggle source
# File lib/rubbycop/cop/style/infinite_loop.rb, line 29 def on_until(node) return unless node.condition.falsey_literal? add_offense(node, :keyword) end
Also aliased as: on_until_post
on_while(node)
click to toggle source
# File lib/rubbycop/cop/style/infinite_loop.rb, line 23 def on_while(node) return unless node.condition.truthy_literal? add_offense(node, :keyword) end
Also aliased as: on_while_post
Private Instance Methods
autocorrect(node)
click to toggle source
# File lib/rubbycop/cop/style/infinite_loop.rb, line 40 def autocorrect(node) if node.while_post_type? || node.until_post_type? replace_begin_end_with_modifier(node) elsif node.modifier_form? replace_source(node.source_range, modifier_replacement(node)) else replace_source(non_modifier_range(node), 'loop do') end end
configured_indent()
click to toggle source
# File lib/rubbycop/cop/style/infinite_loop.rb, line 85 def configured_indent ' ' * config.for_cop('IndentationWidth')['Width'] end
modifier_replacement(node)
click to toggle source
# File lib/rubbycop/cop/style/infinite_loop.rb, line 63 def modifier_replacement(node) if node.single_line? 'loop { ' + node.body.source + ' }' else indentation = node.body.loc.expression.source_line[LEADING_SPACE] ['loop do', node.body.source.gsub(/^/, configured_indent), 'end'].join("\n#{indentation}") end end
non_modifier_range(node)
click to toggle source
# File lib/rubbycop/cop/style/infinite_loop.rb, line 74 def non_modifier_range(node) start_range = node.loc.keyword.begin end_range = if node.do? node.loc.begin.end else node.condition.source_range.end end start_range.join(end_range) end
replace_begin_end_with_modifier(node)
click to toggle source
# File lib/rubbycop/cop/style/infinite_loop.rb, line 50 def replace_begin_end_with_modifier(node) lambda do |corrector| corrector.replace(node.body.loc.begin, 'loop do') corrector.remove(node.body.loc.end.end.join(node.source_range.end)) end end
replace_source(range, replacement)
click to toggle source
# File lib/rubbycop/cop/style/infinite_loop.rb, line 57 def replace_source(range, replacement) lambda do |corrector| corrector.replace(range, replacement) end end