Class: JsShuffle::Methods::ParameterRenaming

Inherits:
Method
  • Object
show all
Defined in:
lib/jsshuffle/methods/parameter_renaming.rb

Overview

Replaces local variable names with a randomly generated new one

pass :parameter_renaming in the :use array of a Parser to use this Method.

Instance Method Summary collapse

Methods inherited from Method

#configure, #default_config, inherited, #postprocess, #preprocess

Instance Method Details

#process(ast, shuffler) ⇒ Object 



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# File 'lib/jsshuffle/methods/parameter_renaming.rb', line 8

def process( ast, shuffler )
    functionNodes = ast.select { |node| node.is_a? RKelly::Nodes::FunctionDeclNode }
    functionNodes.each do |node|
        renamed_parameters = {}
        node.arguments.each { |arg| renamed_parameters[arg.value] = (arg.value = shuffler.random_new_name) }
        node.function_body.value.each { |child| child.value = renamed_parameters[child.value] if child.is_a? RKelly::Nodes::ResolveNode and renamed_parameters.has_key? child.value }
    end
end