[HParker]

This tool allows you to see what serialize output is to assist in debugging serialize output.

source files like,

def hi_there
  puts 1 + 1
end

emits,

node ProgramNode(0...29)
  node ScopeNode(0...0)
  node StatementsNode(0...29)
    node DefNode(0...29)
      token IDENTIFIER 4...12 'hi_there'
      node StatementsNode(15...19)
        node CallNode(15...19)
          token IDENTIFIER 15...19 'puts'
          node ArgumentsNode(20...25)
            node CallNode(20...25)
              node IntegerNode(20...21)
              token PLUS 22...23 '+'
              node ArgumentsNode(24...25)
                node IntegerNode(24...25)
            str: 210 1"+"
        str: 217 4"puts"
      node ScopeNode(0...3)
    location(0...3)
    location(26...29)

[HParker]

@enebo I opened this hoping it would help me understand the serialized output.

Using the format that PR adds, what serialized output would you want for an example like,

1 +
  2 +
  3

node ProgramNode(0...13)
  node ScopeNode(0...0)
  node StatementsNode(0...13)
    node CallNode(0...13)
      node CallNode(0...7)
        node IntegerNode(0...1)
        token PLUS(2...3) '+'
        node ArgumentsNode(6...7)
          node IntegerNode(6...7)
      str: "+"
      token PLUS(8...9) '+'
      node ArgumentsNode(12...13)
        node IntegerNode(12...13)
    str: "+"

I don't think I am understanding the location in the serialized output where the newline nodes would go.

related to: #757

[eregon]

Why not simply use pp YARP.load YARP.dump code for this? It doesn't seem great to manually write deserailization when it's already generated.

[jemmaissroff]

Agreed with @eregon here, although I do think it's helpful to move node_types out of bin/template.rb. But maybe in a separate PR?

[HParker]

Yeah, my mistake! I have spent all my time in the parser and I clearly don't understand the serialize parts yet. Happy to have learned the format by duplicating and just close this PR.