class RubbyCop::Cop::Style::FormatString
This cop enforces the use of a single string formatting utility. Valid options include Kernel#format, Kernel#sprintf and String#%.
The detection of String#% cannot be implemented in a reliable manner for all cases, so only two scenarios are considered - if the first argument is a string literal and if the second argument is an array literal.
Constants
- MSG
Public Instance Methods
message(detected_style)
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# File lib/rubbycop/cop/style/format_string.rb, line 36 def message(detected_style) format(MSG, method_name(style), method_name(detected_style)) end
method_name(style_name)
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# File lib/rubbycop/cop/style/format_string.rb, line 40 def method_name(style_name) style_name == :percent ? 'String#%' : style_name end
on_send(node)
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# File lib/rubbycop/cop/style/format_string.rb, line 26 def on_send(node) formatter(node) do |selector| detected_style = selector == :% ? :percent : selector return if detected_style == style add_offense(node, :selector, message(detected_style)) end end