Method isCode

lib/script/script.js:1379–1404

* Test a script to see if it is likely * to be script code (no weird opcodes). * @returns {Boolean}

()

   */

  isCode() {
    for (const op of this.code) {
      if (op.value === -1)
        return false;

      if (op.isDisabled())
        return false;

      switch (op.value) {
        case opcodes.OP_RESERVED:
        case opcodes.OP_NOP:
        case opcodes.OP_VER:
        case opcodes.OP_VERIF:
        case opcodes.OP_VERNOTIF:
        case opcodes.OP_RESERVED1:
        case opcodes.OP_RESERVED2:
        case opcodes.OP_NOP1:
          return false;
      }

      if (op.value > opcodes.OP_CHECKSEQUENCEVERIFY)
        return false;
    }

    return true;
  }

  /**
   * Inject properties from a pay-to-pubkey script.