class JsShuffle::Methods::VariableRenaming
Replaces local variable names with a randomly generated new one
pass :variable_renaming
in the :use
array of a Parser to use this Method
.
Public Instance Methods
process( ast, shuffler )
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# File lib/jsshuffle/methods/variable_renaming.rb, line 8 def process( ast, shuffler ) sourceNodes = ast.select { |node| node.is_a? RKelly::Nodes::SourceElementsNode } sourceNodes.each do |node| renamed_variables = {} node.value.each do |child| if child.is_a? RKelly::Nodes::VarStatementNode renamed_variables[child.value.first.name] = (child.value.first.name = shuffler.random_new_name ) elsif child.is_a? RKelly::Nodes::ResolveNode child.value = renamed_variables[child.value] if renamed_variables.has_key? child.value else child.each { |n| n.value = renamed_variables[n.value] if n.is_a? RKelly::Nodes::ResolveNode and renamed_variables.has_key? n.value } end end end end