more simple swap script

swap-script.txt

  
  New Script
  
    Opcode.fromSymbol('type'),
    Opcode.fromInt(rules.types.TRANSFER),
    Opcode.fromSymbol('equal'),
    Opcode.fromSymbol('if'),
      Opcode.fromSymbol('dup'),
      Opcode.fromSymbol('blake160'),
      Opcode.fromPush(pubkeyhash),
      Opcode.fromSymbol('equalverify'),
      Opcode.fromSymbol('checksigverify'),
    Opcode.fromSymbol('else'),
      Opcode.fromSymbol('type'),
      Opcode.fromInt(rules.types.FINALIZE),
      Opcode.fromSymbol('equal'),
      Opcode.fromSymbol('if'),
        Opcode.fromSymbol('true'), //fixme
      Opcode.fromSymbol('else'),
        Opcode.fromSymbol('return'), //all other cases
      Opcode.fromSymbol('endif'),
    Opcode.fromSymbol('endif'),


/////////////////////////////////////////

Old script, has to mention each case specifically

    Opcode.fromSymbol('type'),
    Opcode.fromInt(rules.types.UPDATE),
    Opcode.fromSymbol('equal'),
    Opcode.fromSymbol('if'),
    Opcode.fromSymbol('return'),
    Opcode.fromSymbol('endif'),

    Opcode.fromSymbol('type'),
    Opcode.fromInt(rules.types.REVOKE),
    Opcode.fromSymbol('equal'),
    Opcode.fromSymbol('if'),
    Opcode.fromSymbol('return'),
    Opcode.fromSymbol('endif'),
    // TODO add renew
  
    Opcode.fromSymbol('type'),
    Opcode.fromInt(rules.types.FINALIZE),
    Opcode.fromSymbol('equal'),
    Opcode.fromSymbol('if'),
    Opcode.fromSymbol('blake256'),
    Opcode.fromPush(hashlock),
    Opcode.fromSymbol('equalverify'),
    Opcode.fromSymbol('endif'),

Old script has bugs in it, doesn't cover all covenant spend paths.