Module parser_ruby 

Ruby parser for Rúnar contracts (.runar.rb).

Parses Ruby-style contract definitions using a hand-written tokenizer and recursive descent parser. Produces the same AST as the TypeScript and Python parsers.

Expected format

require 'runar'

class P2PKH < Runar::SmartContract
  prop :pub_key_hash, Addr

  def initialize(pub_key_hash)
    super(pub_key_hash)
    @pub_key_hash = pub_key_hash
  end

  runar_public sig: Sig, pub_key: PubKey
  def unlock(sig, pub_key)
    assert hash160(pub_key) == @pub_key_hash
    assert check_sig(sig, pub_key)
  end
end

Key mappings:

• class Foo < Runar::SmartContract -> contract
• runar_public -> Visibility::Public for the next method
• params -> pending param types for a private method
• prop :name, Type -> PropertyNode
• @ivar -> PropertyAccess (like this.prop)
• assert expr -> assert(expr)
• ** -> pow() call
• and/or/not -> And/Or/Not operators
• ==/!= -> StrictEq/StrictNe
• for i in start...end -> ForStatement (exclusive)
• for i in start..end -> ForStatement (inclusive)
• unless -> if with negated condition
• snake_case identifiers -> camelCase in AST

Functions

parse_ruby

Parse a Ruby-format Rúnar contract source.