Example #1
0
    def __init__(self, sender):
        self.sender = sender

        self.chairperson = 0
        self.voters = SDict(code, table_id=1, value_type=Voter)
        self.proposals = SList(code, table_id=2, value_type=Proposal)

        #FIXME only need to set once
        chairperson = N('vote')
        v = Voter()
        v.weight = 1
        self.voters[chairperson] = v
Example #2
0
    def __init__(self):
        #Reference to contract tracking NFT ownership
        #ERC721 public nonFungibleContract;
        self.nonFungibleContract = ERC721()
        #Cut owner takes on each auction, measured in basis points (1/100 of a percent).
        #Values 0-10,000 map to 0%-100%
        #uint256 public ownerCut;
        self.ownerCut = uint256(0)

        #Map from token ID to their corresponding auction.
        #mapping (uint256 => Auction) tokenIdToAuction;
        self.tokenIdToAuction = SDict(key_type=uint256, value_type=Auction)
Example #3
0
def apply(name, type):
    if type == N('sayhello'):
        a = SDict(code, N('a'))
        msg = read_action()
        a[msg] = msg
        return
        a1 = a[100]
        a2 = a[101]
        a3 = a[102]
        #        print(a1, a2, a3)
        a[100] = 'hello1'
        a[101] = 'hello2'
        a[102] = 'hello3'
Example #4
0
def apply(receiver, code, action):
    if action == N('sayhello'):
        a = SDict(code, N('a'))
        msg = read_action()
        a[msg] = msg
        return
        a1 = a[100]
        a2 = a[101]
        a3 = a[102]
        #        print(a1, a2, a3)
        a[100] = 'hello1'
        a[101] = 'hello2'
        a[102] = 'hello3'
Example #5
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    def __init__(self):
        # Parameters of the auction. Times are either
        # absolute unix timestamps (seconds since 1970-01-01)
        # or time periods in seconds.
        self._table_id = N('auction')
        self.beneficiary = 0  #address(0)
        self.auctionEnd = 0

        # Current state of the auction.
        self.highestBidder = 0
        self.highestBid = 0

        # Allowed withdrawals of previous bids
        #        mapping(address => uint) pendingReturns;
        self.pendingReturns = SDict(code, table_id=1)
        # Set to true at the end, disallows any change
        self.ended = 0

        self.load()
Example #6
0
    def __init__(self):
        super(KittyBase, self).__init__()
        '''FIXME:
        self.cooldowns = [
            uint32(1 minutes),
            uint32(2 minutes),
            uint32(5 minutes),
            uint32(10 minutes),
            uint32(30 minutes),
            uint32(1 hours),
            uint32(2 hours),
            uint32(4 hours),
            uint32(8 hours),
            uint32(16 hours),
            uint32(1 days),
            uint32(2 days),
            uint32(4 days),
            uint32(7 days) ]
        '''
        # An approximation of currently how many seconds are in between blocks.
        self.secondsPerBlock = uint256(15)

        #/*** STORAGE ***/

        # @dev An array containing the Kitty struct for all Kitties in existence. The ID
        #  of each cat is actually an index into this array. Note that ID 0 is a negacat,
        #  the unKitty, the mythical beast that is the parent of all gen0 cats. A bizarre
        #  creature that is both matron and sire... to itself! Has an invalid genetic code.
        #  In other words, cat ID 0 is invalid... ;-)
        #Kitty[] kitties;
        self.kitties = SList(0)

        # @dev A mapping from cat IDs to the address that owns them. All cats have
        #  some valid owner address, even gen0 cats are created with a non-zero owner.
        #mapping (uint256 => address) public kittyIndexToOwner;
        self.kittyIndexToOwner = SList(0, value_type=Kitty)

        # @dev A mapping from owner address to count of tokens that address owns.
        #  Used internally inside balanceOf() to resolve ownership count.
        #mapping (address => uint256) ownershipTokenCount;
        self.ownershipTokenCount = SDict(0)

        # @dev A mapping from KittyIDs to an address that has been approved to call
        #  transferFrom(). Each Kitty can only have one approved address for transfer
        #  at any time. A zero value means no approval is outstanding.
        #mapping (uint256 => address) public kittyIndexToApproved;
        self.kittyIndexToApproved = SDict(0)

        # @dev A mapping from KittyIDs to an address that has been approved to use
        #  this Kitty for siring via breedWith(). Each Kitty can only have one approved
        #  address for siring at any time. A zero value means no approval is outstanding.
        #mapping (uint256 => address) public sireAllowedToAddress;
        self.sireAllowedToAddress = SDict(0)

        # @dev The address of the ClockAuction contract that handles sales of Kitties. This
        #  same contract handles both peer-to-peer sales as well as the gen0 sales which are
        #  initiated every 15 minutes.
        #SaleClockAuction public saleAuction;
        self.saleAuction = None

        # @dev The address of a custom ClockAuction subclassed contract that handles siring
        #  auctions. Needs to be separate from saleAuction because the actions taken on success
        #  after a sales and siring auction are quite different.
        #SiringClockAuction public siringAuction;
        self.siringAuction = None
Example #7
0
class Ballot(object):
    def __init__(self, sender):
        self.sender = sender

        self.chairperson = 0
        self.voters = SDict(code, table_id=1, value_type=Voter)
        self.proposals = SList(code, table_id=2, value_type=Proposal)

        #FIXME only need to set once
        chairperson = N('vote')
        v = Voter()
        v.weight = 1
        self.voters[chairperson] = v

    def addProposal(self, name):
        p = Proposal(name, 0)
        self.proposals.append(p)

    # Give `voter` the right to vote on this ballot.
    # May only be called by `chairperson`.
    def giveRightToVote(self, voter):
        require_auth(self.sender)
        if self.voters.find(voter):
            return

        v = Voter()
        v.weight = 1
        # save it by assign a new value
        self.voters[voter] = v
        '''
        require(
            msg.sender == chairperson,
            "Only chairperson can give right to vote."
        );
        require(
            !voters[voter].voted,
            "The voter already voted."
        );
        require(voters[voter].weight == 0);
        voters[voter].weight = 1;
        '''

    # Delegate your vote to the voter `to`.
    def delegate(self, to):
        #not a voter
        if not self.voters.find(to):
            return


#        require(self.voters.find(to), n2s(to) + ' is not a voter')
        require(to != self.sender, "Self-delegation is disallowed.")
        # assigns reference
        voter = self.voters[self.sender]
        require(not voter.voted, "You already voted.")

        # Forward the delegation as long as
        # `to` also delegated.
        # In general, such loops are very dangerous,
        # because if they run too long, they might
        # need more gas than is available in a block.
        # In this case, the delegation will not be executed,
        # but in other situations, such loops might
        # cause a contract to get "stuck" completely.
        while True:
            v = self.voters.find(to)
            if not v:
                break
            if v.delegate == 0:
                break
            to = v.delegate
            # We found a loop in the delegation, not allowed.
            require(to != self.sender, "Found loop in delegation.")

        # Since `sender` is a reference, this
        # modifies `voters[msg.sender].voted`
        voter.voted = True
        voter.delegate = to

        #-- save changed voter
        self.voters[self.sender] = voter

        delegate_ = self.voters[to]
        if delegate_.voted:
            # If the delegate already voted,
            # directly add to the number of votes
            self.proposals[delegate_.vote].voteCount += voter.weight
        else:
            # If the delegate did not vote yet,
            # add to her weight.
            delegate_.weight += voter.weight

    #/ Give your vote (including votes delegated to you)
    #/ to proposal `proposals[proposal].name`.
    def vote(self, proposal):
        voter = self.voters[self.sender]
        require(not voter.voted, "Already voted.")
        voter.voted = True
        voter.vote = proposal

        #-- save voter
        self.voters[self.sender] = voter

        # If `proposal` is out of the range of the array,
        # this will throw automatically and revert all
        # changes.
        self.proposals[proposal].voteCount += voter.weight

    #/ @dev Computes the winning proposal taking all
    #/ previous votes into account.
    def winningProposal(self):
        winningVoteCount = 0
        winningProposal_ = 0
        for p in range(len(self.proposals)):
            if self.proposals[p].voteCount > winningVoteCount:
                winningVoteCount = self.proposals[p].voteCount
                winningProposal_ = p
        return winningProposal_

    # Calls winningProposal() function to get the index
    # of the winner contained in the proposals array and then
    # returns the name of the winner
    def winnerName(self):
        index = self.winningProposal()
        return self.proposals[index].name