mirror of
git://holbrook.no/erc20-demurrage-token
synced 2024-11-05 10:06:45 +01:00
WIP Improve redistribution precision
This commit is contained in:
nolash
parent
e8781a9aa0
commit
0dba167af2
GPG Key ID:
21D2E7BB88C2A746
File diff suppressed because one or more lines are too long
@ -357,6 +357,23 @@ class DemurrageToken(ERC20):
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return o
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def get_distribution(self, contract_address, supply, demurrage_amount, sender_address=ZERO_ADDRESS):
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o = jsonrpc_template()
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o['method'] = 'eth_call'
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enc = ABIContractEncoder()
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enc.method('getDistribution')
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enc.typ(ABIContractType.UINT256)
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enc.typ(ABIContractType.UINT256)
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enc.uint256(supply)
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enc.uint256(demurrage_amount)
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data = add_0x(enc.get())
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tx = self.template(sender_address, contract_address)
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tx = self.set_code(tx, data)
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o['params'].append(self.normalize(tx))
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o['params'].append('latest')
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return o
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@classmethod
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def parse_actual_period(self, v):
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return abi_decode_single(ABIContractType.UINT256, v)
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@ -419,3 +436,8 @@ class DemurrageToken(ERC20):
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@classmethod
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def parse_decay_by(self, v):
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return abi_decode_single(ABIContractType.UINT256, v)
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@classmethod
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def parse_get_distribution(self, v):
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return abi_decode_single(ABIContractType.UINT256, v)
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@ -8,7 +8,7 @@ from erc20_demurrage_token.sim import DemurrageTokenSimulation
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logging.basicConfig(level=logging.INFO)
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logg = logging.getLogger()
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decay_per_minute = 0.00050105908373373 # equals approx 2% per month
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decay_per_minute = 0.00000050105908373373 # equals approx 2% per month
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# parameters for simulation object
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settings = DemurrageTokenSettings()
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@ -60,7 +60,7 @@ class TestDemurrage(EthTesterCase):
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except TypeError:
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self.start_time = int(r['timestamp'])
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self.default_supply = 1000000000000
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self.default_supply = 10 ** 12
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self.default_supply_cap = int(self.default_supply * 10)
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@ -55,7 +55,7 @@ class TestBasic(TestDemurrageDefault):
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def test_apply_demurrage(self):
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modifier = 10 * (10 ** 37)
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modifier = (10 ** 38)
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nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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@ -31,124 +31,139 @@ testdir = os.path.dirname(__file__)
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class TestRedistribution(TestDemurrageUnit):
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def test_single_step(self):
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# TODO: move to "pure" test file when getdistribution is implemented in all contracts
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def test_distribution(self):
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nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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mint_amount = 100000000
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demurrage = (self.tax_level / 1000000) * (10^38)
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supply = self.default_supply
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(tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], mint_amount)
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self.rpc.do(o)
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self.backend.time_travel(self.start_time + self.period_seconds)
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(tx_hash, o) = c.change_period(self.address, self.accounts[0])
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self.rpc.do(o)
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expected_balance = int(mint_amount - ((self.tax_level / 1000000) * mint_amount))
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o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
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o = c.get_distribution(self.address, supply, demurrage, sender_address=self.accounts[0])
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r = self.rpc.do(o)
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balance = c.parse_balance_of(r)
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self.assertEqual(balance, expected_balance)
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distribution = c.parse_get_distribution(r)
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expected_distribution = self.default_supply * (self.tax_level / 1000000)
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self.assertEqual(distribution, self.default_supply + expected_distribution)
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def test_single_step_multi(self):
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nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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mint_amount = 100000000
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for i in range(3):
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(tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[i+1], mint_amount)
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self.rpc.do(o)
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self.backend.time_travel(self.start_time + self.period_seconds)
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(tx_hash, o) = c.change_period(self.address, self.accounts[0])
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self.rpc.do(o)
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expected_balance = int(mint_amount - ((self.tax_level / 1000000) * mint_amount))
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for i in range(3):
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o = c.balance_of(self.address, self.accounts[i+1], sender_address=self.accounts[0])
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r = self.rpc.do(o)
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balance = c.parse_balance_of(r)
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self.assertEqual(balance, expected_balance)
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def test_single_step_transfer(self):
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nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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mint_amount = 100000000
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half_mint_amount = int(mint_amount / 2)
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(tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], mint_amount)
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self.rpc.do(o)
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(tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[2], mint_amount)
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self.rpc.do(o)
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nonce_oracle = RPCNonceOracle(self.accounts[1], self.rpc)
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c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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(tx_hash, o) = c.transfer(self.address, self.accounts[1], self.accounts[3], half_mint_amount)
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self.rpc.do(o)
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self.backend.time_travel(self.start_time + self.period_seconds)
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(tx_hash, o) = c.change_period(self.address, self.accounts[1])
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self.rpc.do(o)
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o = receipt(tx_hash)
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r = self.rpc.do(o)
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self.assertEqual(r['status'], 1)
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demurrage_amount = int((self.tax_level / 1000000) * mint_amount)
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expected_balance = mint_amount - demurrage_amount
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o = c.balance_of(self.address, self.accounts[2], sender_address=self.accounts[0])
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r = self.rpc.do(o)
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balance = c.parse_balance_of(r)
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self.assertEqual(balance, expected_balance)
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half_demurrage_amount = int((self.tax_level / 1000000) * half_mint_amount)
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expected_balance = half_mint_amount - half_demurrage_amount
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o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
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r = self.rpc.do(o)
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balance = c.parse_balance_of(r)
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self.assertEqual(balance, expected_balance)
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o = c.balance_of(self.address, self.accounts[3], sender_address=self.accounts[0])
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r = self.rpc.do(o)
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balance = c.parse_balance_of(r)
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self.assertEqual(balance, expected_balance)
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o = c.total_supply(self.address, sender_address=self.accounts[0])
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r = self.rpc.do(o)
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supply = c.parse_total_supply(r)
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o = c.redistributions(self.address, 0, sender_address=self.accounts[0])
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redistribution = self.rpc.do(o)
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o = c.to_redistribution_supply(self.address, redistribution, sender_address=self.accounts[0])
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r = self.rpc.do(o)
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supply = c.parse_to_redistribution_item(r)
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o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
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r = self.rpc.do(o)
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demurrage = c.parse_demurrage_amount(r)
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logg.debug('\nrediistribution {}\ndemurrage {}\nsupply {}'.format(redistribution, demurrage, supply))
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expected_balance = int(supply * (self.tax_level / 1000000))
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expected_balance_tolerance = 1
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o = c.balance_of(self.address, self.sink_address, sender_address=self.accounts[0])
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r = self.rpc.do(o)
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balance = c.parse_balance_of(r)
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self.assertGreaterEqual(balance, expected_balance - expected_balance_tolerance)
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self.assertLessEqual(balance, expected_balance)
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# def test_single_step(self):
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# nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
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# c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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#
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# mint_amount = 100000000
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#
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# (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], mint_amount)
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# self.rpc.do(o)
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#
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# self.backend.time_travel(self.start_time + self.period_seconds)
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#
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# (tx_hash, o) = c.change_period(self.address, self.accounts[0])
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# self.rpc.do(o)
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#
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# expected_balance = int(mint_amount - ((self.tax_level / 1000000) * mint_amount))
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#
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# o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
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# r = self.rpc.do(o)
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# balance = c.parse_balance_of(r)
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#
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# self.assertEqual(balance, expected_balance)
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#
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#
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# def test_single_step_multi(self):
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# nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
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# c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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#
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# mint_amount = 100000000
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#
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# for i in range(3):
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# (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[i+1], mint_amount)
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# self.rpc.do(o)
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#
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# self.backend.time_travel(self.start_time + self.period_seconds)
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#
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# (tx_hash, o) = c.change_period(self.address, self.accounts[0])
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# self.rpc.do(o)
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#
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# expected_balance = int(mint_amount - ((self.tax_level / 1000000) * mint_amount))
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#
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# for i in range(3):
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# o = c.balance_of(self.address, self.accounts[i+1], sender_address=self.accounts[0])
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# r = self.rpc.do(o)
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# balance = c.parse_balance_of(r)
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# self.assertEqual(balance, expected_balance)
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#
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#
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# def test_single_step_transfer(self):
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# nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
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# c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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#
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# mint_amount = 100000000
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# half_mint_amount = int(mint_amount / 2)
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#
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# (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[1], mint_amount)
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# self.rpc.do(o)
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#
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# (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[2], mint_amount)
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# self.rpc.do(o)
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#
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# nonce_oracle = RPCNonceOracle(self.accounts[1], self.rpc)
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# c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
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# (tx_hash, o) = c.transfer(self.address, self.accounts[1], self.accounts[3], half_mint_amount)
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# self.rpc.do(o)
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#
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# self.backend.time_travel(self.start_time + self.period_seconds)
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#
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# (tx_hash, o) = c.change_period(self.address, self.accounts[1])
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# self.rpc.do(o)
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# o = receipt(tx_hash)
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# r = self.rpc.do(o)
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# self.assertEqual(r['status'], 1)
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#
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# demurrage_amount = int((self.tax_level / 1000000) * mint_amount)
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#
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# expected_balance = mint_amount - demurrage_amount
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# o = c.balance_of(self.address, self.accounts[2], sender_address=self.accounts[0])
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# r = self.rpc.do(o)
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# balance = c.parse_balance_of(r)
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# self.assertEqual(balance, expected_balance)
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#
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# half_demurrage_amount = int((self.tax_level / 1000000) * half_mint_amount)
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#
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# expected_balance = half_mint_amount - half_demurrage_amount
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# o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
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# r = self.rpc.do(o)
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# balance = c.parse_balance_of(r)
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# self.assertEqual(balance, expected_balance)
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#
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# o = c.balance_of(self.address, self.accounts[3], sender_address=self.accounts[0])
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# r = self.rpc.do(o)
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# balance = c.parse_balance_of(r)
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# self.assertEqual(balance, expected_balance)
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#
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# o = c.total_supply(self.address, sender_address=self.accounts[0])
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# r = self.rpc.do(o)
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# supply = c.parse_total_supply(r)
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#
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#
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# o = c.redistributions(self.address, 0, sender_address=self.accounts[0])
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# redistribution = self.rpc.do(o)
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# o = c.to_redistribution_supply(self.address, redistribution, sender_address=self.accounts[0])
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# r = self.rpc.do(o)
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# supply = c.parse_to_redistribution_item(r)
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# o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
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# r = self.rpc.do(o)
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# demurrage = c.parse_demurrage_amount(r)
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# logg.debug('\nrediistribution {}\ndemurrage {}\nsupply {}'.format(redistribution, demurrage, supply))
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#
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# expected_balance = int(supply * (self.tax_level / 1000000))
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# expected_balance_tolerance = 1
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#
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# o = c.balance_of(self.address, self.sink_address, sender_address=self.accounts[0])
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# r = self.rpc.do(o)
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# balance = c.parse_balance_of(r)
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# self.assertGreaterEqual(balance, expected_balance - expected_balance_tolerance)
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# self.assertLessEqual(balance, expected_balance)
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#
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if __name__ == '__main__':
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unittest.main()
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@ -6,13 +6,13 @@ contract DemurrageTokenSingleCap {
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// Redistribution bit field, with associated shifts and masks
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// (Uses sub-byte boundaries)
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bytes32[] public redistributions; // uint95(unused) | uint20(demurrageModifier) | uint36(participants) | uint72(value) | uint32(period)
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bytes32[] public redistributions; // uint51(unused) | uint64(demurrageModifier) | uint36(participants) | uint72(value) | uint32(period)
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uint8 constant shiftRedistributionPeriod = 0;
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uint256 constant maskRedistributionPeriod = 0x00000000000000000000000000000000000000000000000000000000ffffffff; // (1 << 32) - 1
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uint8 constant shiftRedistributionValue = 32;
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uint256 constant maskRedistributionValue = 0x00000000000000000000000000000000000000ffffffffffffffffff00000000; // ((1 << 72) - 1) << 32
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uint8 constant shiftRedistributionDemurrage = 140;
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uint256 constant maskRedistributionDemurrage = 0x000000000000000000000ffffffff00000000000000000000000000000000000; // ((1 << 20) - 1) << 140
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uint8 constant shiftRedistributionDemurrage = 104;
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uint256 constant maskRedistributionDemurrage = 0x000000ffffffffffffffffffffffffffffffff00000000000000000000000000; // ((1 << 20) - 1) << 140
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// Account balances
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mapping (address => uint256) account;
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@ -55,6 +55,9 @@ contract DemurrageTokenSingleCap {
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// remaining decimal positions of nanoDivider to reach 38, equals precision in growth and decay
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uint256 constant growthResolutionFactor = 1000000000000;
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// demurrage decimal width; 38 places
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uint256 immutable resolutionFactor = nanoDivider * growthResolutionFactor;
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// Timestamp of start of periods (time which contract constructor was called)
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uint256 public immutable periodStart;
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@ -111,10 +114,10 @@ contract DemurrageTokenSingleCap {
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demurrageTimestamp = block.timestamp;
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periodStart = demurrageTimestamp;
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periodDuration = _periodMinutes * 60;
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demurrageAmount = uint128(nanoDivider * 1000000000000); // Represents 38 decimal places
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demurrageAmount = 100000000000000000000000000000000000000; // Represents 38 decimal places, same as resolutionFactor
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//demurragePeriod = 1;
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taxLevel = _taxLevelMinute; // Represents 38 decimal places
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bytes32 initialRedistribution = toRedistribution(0, 10000000000000000000, 0, 1);
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bytes32 initialRedistribution = toRedistribution(0, nanoDivider, 0, 1);
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redistributions.push(initialRedistribution);
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// Misc settings
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@ -246,7 +249,8 @@ contract DemurrageTokenSingleCap {
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uint256 currentRedistribution;
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uint256 grownSupply;
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grownSupply = growBy(totalSupply, 1);
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//grownSupply = growBy(totalSupply, 1);
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grownSupply = totalSupply;
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currentRedistribution = uint256(redistributions[redistributions.length-1]);
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currentRedistribution &= (~maskRedistributionValue);
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currentRedistribution |= (grownSupply << shiftRedistributionValue);
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@ -280,10 +284,15 @@ contract DemurrageTokenSingleCap {
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// Returns the amount sent to the sink address
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function applyDefaultRedistribution(bytes32 _redistribution) private returns (uint256) {
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uint256 redistributionSupply;
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uint256 redistributionDemurrage;
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uint256 unit;
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redistributionSupply = toRedistributionSupply(_redistribution);
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unit = getDistribution(redistributionSupply, demurrageAmount);
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redistributionDemurrage = resolutionFactor - toRedistributionDemurrageModifier(_redistribution);
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if (redistributionDemurrage == 0) {
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return 0;
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}
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unit = getDistribution(redistributionSupply, redistributionDemurrage);
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increaseBaseBalance(sinkAddress, toBaseAmount(unit / nanoDivider));
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return unit;
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}
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@ -349,9 +358,9 @@ contract DemurrageTokenSingleCap {
|
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|
||||
demurrageCounts = demurrageCycles(periodTimestamp);
|
||||
if (demurrageCounts > 0) {
|
||||
nextRedistributionDemurrage = growBy(currentDemurrageAmount, demurrageCounts) / nanoDivider;
|
||||
nextRedistributionDemurrage = growBy(currentDemurrageAmount, demurrageCounts);
|
||||
} else {
|
||||
nextRedistributionDemurrage = currentDemurrageAmount / nanoDivider;
|
||||
nextRedistributionDemurrage = currentDemurrageAmount;
|
||||
}
|
||||
|
||||
nextRedistribution = toRedistribution(0, nextRedistributionDemurrage, totalSupply, nextPeriod);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user