Method: CodeWeb::CodeParser#collapse_ast

Defined in:
lib/code_web/code_parser.rb

#collapse_ast(ast, max = 20) ⇒ Object

TODO: add collapse_ast this one creates the true classes, not the string versions (so don’t add double quotes, or do ‘nil’)



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# File 'lib/code_web/code_parser.rb', line 111

def collapse_ast(ast, max=20)
  if ast.is_a?(Sexp)
    if static?
      ast = ast.gsub(Sexp.new(:self), Sexp.new(:const, self_name))
    else
      ast = ast.gsub(Sexp.new(:call, Sexp.new(:self),:class), Sexp.new(:const, self_name))
    end
    case ast.node_type
    when :hash #name, value, name, value, ...
      if ast[1].is_a?(Sexp) && ast[1].node_type == :kwsplat
        ast[1..-1].map { |i| collapse_ast(i) }
      else
        Hash[*ast[1..-1].map { |i| collapse_ast(i) }]
      end
    when :array
      ast[1..-1].map {|node| collapse_ast(node)}
    when :lit, :lvar, :const, :str, :ivar, :cvar
      ast[1]
    when :true
      true
    when :false
      false
    when :nil
      nil
    when :self
      ast[0]
    when :call
      if ast[2] == :[]
        "#{method_name_from_ast(ast[1..1]).join('.')}[#{collapse_ast(ast[3])}]"
      else
        "#{method_name_from_ast(ast[1..2]).join('.')}#{'(...)' if ast.length > 3}"
      end
    when :evstr
      "#"+"{#{collapse_asts(ast[1..-1]).join}}"
    when :colon2
      "#{method_name_from_ast(ast[1..-1]).join('::')}"
    when :dot2
      "#{collapse_ast(ast[1])}..#{collapse_ast(ast[2])}"
    when :colon3
      "::#{collapse_asts(ast[1..-1]).join}"
    when :[]
      "[#{collapse_asts(ast[1..-1]).join}]"
    when :dstr
      "#{collapse_asts(ast[1..-1]).join}"
    #backref?
    else
      if max > 0
        ast.map {|node| collapse_ast(node, max-1)}
      else
        "#{ast.node_type}[]"
      end
    end
  elsif ast.nil?
    nil
  else
    ast
  end
end