Add giftable token contract metadata

This commit is contained in:
lash 2023-03-21 20:08:17 +00:00
parent 99e82dd3bf
commit 0937ecb8cd
Signed by: lash
GPG Key ID: 21D2E7BB88C2A746
17 changed files with 199 additions and 183 deletions

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* 0.6.2
- Add Giftable Token contract metadata
* 0.6.1
- Add explicit burn (reduces supply) to giftable token
* 0.6.0

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# standard imports
import logging
# external imports
from chainlib.eth.unittest.ethtester import EthTesterCase
from chainlib.eth.nonce import RPCNonceOracle
from chainlib.eth.gas import OverrideGasOracle
from chainlib.eth.tx import (
transaction,
receipt,
)
from hexathon import strip_0x
# local imports
from giftable_erc20_token.unittest import TestGiftableToken
from eth_erc20 import ERC20
logging.basicConfig(level=logging.DEBUG)
logg = logging.getLogger(__name__)
class TestInterface:
def test_balance(self):
c = ERC20(self.chain_spec)
o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0])
r = self.conn.do(o)
balance = ERC20.parse_balance(r)
self.assertEqual(self.initial_supply, balance)
def test_supply(self):
c = ERC20(self.chain_spec)
o = c.total_supply(self.address, sender_address=self.accounts[0])
r = self.conn.do(o)
supply = ERC20.parse_total_supply(r)
self.assertEqual(self.initial_supply, supply)
def test_name(self):
c = ERC20(self.chain_spec)
o = c.name(self.address, sender_address=self.accounts[0])
r = self.conn.do(o)
name = ERC20.parse_name(r)
self.assertEqual(self.name, name)
def test_symbol(self):
c = ERC20(self.chain_spec)
o = c.symbol(self.address, sender_address=self.accounts[0])
r = self.conn.do(o)
symbol = ERC20.parse_symbol(r)
self.assertEqual(self.symbol, symbol)
def test_transfer(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.conn)
gas_oracle = OverrideGasOracle(limit=100000, conn=self.conn)
c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
(tx_hash, o) = c.transfer(self.address, self.accounts[0], self.accounts[1], 1000)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0])
r = self.rpc.do(o)
balance = c.parse_balance(r)
self.assertEqual(balance, self.initial_supply - 1000)
o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
r = self.rpc.do(o)
balance = c.parse_balance(r)
self.assertEqual(balance, 1000)
o = transaction(tx_hash)
r = self.rpc.do(o)
data = c.parse_transfer_request(r['data'])
self.assertEqual(data[0], strip_0x(self.accounts[1]))
self.assertEqual(data[1], 1000)
def test_transfer_from(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.conn)
gas_oracle = OverrideGasOracle(limit=100000, conn=self.conn)
c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
(tx_hash, o) = c.approve(self.address, self.accounts[0], self.accounts[1], 1000)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
o = c.allowance(self.address, self.accounts[0], self.accounts[1], sender_address=self.accounts[0])
r = self.rpc.do(o)
allowance = c.parse_allowance(r)
self.assertEqual(allowance, 1000)
o = transaction(tx_hash)
r = self.rpc.do(o)
data = c.parse_approve_request(r['data'])
self.assertEqual(data[0], strip_0x(self.accounts[1]))
self.assertEqual(data[1], 1000)
nonce_oracle = RPCNonceOracle(self.accounts[1], conn=self.conn)
c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
(tx_hash, o) = c.transfer_from(self.address, self.accounts[1], self.accounts[0], self.accounts[2], 1001)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 0)
o = transaction(tx_hash)
r = self.rpc.do(o)
data = c.parse_transfer_from_request(r['data'])
self.assertEqual(data[0], strip_0x(self.accounts[0]))
self.assertEqual(data[1], strip_0x(self.accounts[2]))
self.assertEqual(data[2], 1001)
(tx_hash, o) = c.transfer_from(self.address, self.accounts[1], self.accounts[0], self.accounts[2], 1000)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0])
r = self.rpc.do(o)
balance = c.parse_balance(r)
self.assertEqual(balance, self.initial_supply - 1000)
o = c.balance_of(self.address, self.accounts[2], sender_address=self.accounts[0])
r = self.rpc.do(o)
balance = c.parse_balance(r)
self.assertEqual(balance, 1000)
def test_revoke_approve(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.conn)
gas_oracle = OverrideGasOracle(limit=100000, conn=self.conn)
c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
(tx_hash, o) = c.approve(self.address, self.accounts[0], self.accounts[1], 1000)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
(tx_hash, o) = c.approve(self.address, self.accounts[0], self.accounts[1], 999)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 0)
(tx_hash, o) = c.approve(self.address, self.accounts[0], self.accounts[1], 0)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
o = c.allowance(self.address, self.accounts[0], self.accounts[1], sender_address=self.accounts[0])
r = self.rpc.do(o)
allowance = c.parse_allowance(r)
self.assertEqual(allowance, 0)
nonce_oracle = RPCNonceOracle(self.accounts[1], conn=self.conn)
c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
(tx_hash, o) = c.transfer_from(self.address, self.accounts[1], self.accounts[0], self.accounts[2], 1)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 0)

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[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint8","name":"_decimals","type":"uint8"},{"internalType":"uint256","name":"_supply","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"TransferFrom","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

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{"compiler":{"version":"0.8.18+commit.87f61d96"},"language":"Solidity","output":{"abi":[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint8","name":"_decimals","type":"uint8"},{"internalType":"uint256","name":"_supply","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"TransferFrom","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}],"devdoc":{"kind":"dev","methods":{},"version":1},"userdoc":{"kind":"user","methods":{},"version":1}},"settings":{"compilationTarget":{"StaticToken.sol":"StaticToken"},"evmVersion":"byzantium","libraries":{},"metadata":{"bytecodeHash":"ipfs"},"optimizer":{"enabled":false,"runs":200},"remappings":[]},"sources":{"StaticToken.sol":{"keccak256":"0x7afcc41cbaaaeeac2e372c50ed4cf6962035af89e33b500a65927f46d8bf31f2","license":"GPL-3.0-or-later","urls":["bzz-raw://4077171f628fd470cb7f72ca80426297132050f4d08380b55ca74c87e3df2727","dweb:/ipfs/QmWvgFNWrRtzQFejyfjy6LaerghSnYQ86R5WVTnXS7wiuD"]}},"version":1}

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@ -1,6 +1,6 @@
[metadata]
name = eth-erc20
version = 0.6.1
version = 0.6.2
description = ERC20 interface and simple contract with deployment script that lets any address mint and gift itself tokens.
author = Louis Holbrook
author_email = dev@holbrook.no

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@ -1,176 +1,13 @@
# standard imports
import logging
# import logging
import unittest
# external imports
from chainlib.eth.unittest.ethtester import EthTesterCase
from chainlib.connection import RPCConnection
from chainlib.eth.nonce import RPCNonceOracle
from chainlib.eth.gas import OverrideGasOracle
from chainlib.eth.tx import (
transaction,
receipt,
)
from chainlib.eth.address import to_checksum_address
from hexathon import strip_0x
# local imports
from giftable_erc20_token.unittest import TestGiftableToken
from eth_erc20 import ERC20
logging.basicConfig(level=logging.DEBUG)
logg = logging.getLogger()
from eth_erc20.unittest import TestInterface
class TestToken(TestGiftableToken):
def test_balance(self):
c = ERC20(self.chain_spec)
o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0])
r = self.conn.do(o)
balance = ERC20.parse_balance(r)
self.assertEqual(self.initial_supply, balance)
def test_supply(self):
c = ERC20(self.chain_spec)
o = c.total_supply(self.address, sender_address=self.accounts[0])
r = self.conn.do(o)
supply = ERC20.parse_total_supply(r)
self.assertEqual(self.initial_supply, supply)
def test_name(self):
c = ERC20(self.chain_spec)
o = c.name(self.address, sender_address=self.accounts[0])
r = self.conn.do(o)
name = ERC20.parse_name(r)
self.assertEqual(self.name, name)
def test_symbol(self):
c = ERC20(self.chain_spec)
o = c.symbol(self.address, sender_address=self.accounts[0])
r = self.conn.do(o)
symbol = ERC20.parse_symbol(r)
self.assertEqual(self.symbol, symbol)
def test_transfer(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.conn)
gas_oracle = OverrideGasOracle(limit=100000, conn=self.conn)
c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
(tx_hash, o) = c.transfer(self.address, self.accounts[0], self.accounts[1], 1000)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0])
r = self.rpc.do(o)
balance = c.parse_balance(r)
self.assertEqual(balance, self.initial_supply - 1000)
o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
r = self.rpc.do(o)
balance = c.parse_balance(r)
self.assertEqual(balance, 1000)
o = transaction(tx_hash)
r = self.rpc.do(o)
data = c.parse_transfer_request(r['data'])
self.assertEqual(data[0], strip_0x(self.accounts[1]))
self.assertEqual(data[1], 1000)
def test_transfer_from(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.conn)
gas_oracle = OverrideGasOracle(limit=100000, conn=self.conn)
c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
(tx_hash, o) = c.approve(self.address, self.accounts[0], self.accounts[1], 1000)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
o = c.allowance(self.address, self.accounts[0], self.accounts[1], sender_address=self.accounts[0])
r = self.rpc.do(o)
allowance = c.parse_allowance(r)
self.assertEqual(allowance, 1000)
o = transaction(tx_hash)
r = self.rpc.do(o)
data = c.parse_approve_request(r['data'])
self.assertEqual(data[0], strip_0x(self.accounts[1]))
self.assertEqual(data[1], 1000)
nonce_oracle = RPCNonceOracle(self.accounts[1], conn=self.conn)
c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
(tx_hash, o) = c.transfer_from(self.address, self.accounts[1], self.accounts[0], self.accounts[2], 1001)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 0)
o = transaction(tx_hash)
r = self.rpc.do(o)
data = c.parse_transfer_from_request(r['data'])
self.assertEqual(data[0], strip_0x(self.accounts[0]))
self.assertEqual(data[1], strip_0x(self.accounts[2]))
self.assertEqual(data[2], 1001)
(tx_hash, o) = c.transfer_from(self.address, self.accounts[1], self.accounts[0], self.accounts[2], 1000)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0])
r = self.rpc.do(o)
balance = c.parse_balance(r)
self.assertEqual(balance, self.initial_supply - 1000)
o = c.balance_of(self.address, self.accounts[2], sender_address=self.accounts[0])
r = self.rpc.do(o)
balance = c.parse_balance(r)
self.assertEqual(balance, 1000)
def test_revoke_approve(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.conn)
gas_oracle = OverrideGasOracle(limit=100000, conn=self.conn)
c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
(tx_hash, o) = c.approve(self.address, self.accounts[0], self.accounts[1], 1000)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
(tx_hash, o) = c.approve(self.address, self.accounts[0], self.accounts[1], 999)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 0)
(tx_hash, o) = c.approve(self.address, self.accounts[0], self.accounts[1], 0)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
o = c.allowance(self.address, self.accounts[0], self.accounts[1], sender_address=self.accounts[0])
r = self.rpc.do(o)
allowance = c.parse_allowance(r)
self.assertEqual(allowance, 0)
nonce_oracle = RPCNonceOracle(self.accounts[1], conn=self.conn)
c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
(tx_hash, o) = c.transfer_from(self.address, self.accounts[1], self.accounts[0], self.accounts[2], 1)
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 0)
class TestBasic(TestGiftableToken, TestInterface):
pass
if __name__ == '__main__':

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@ -52,7 +52,7 @@ contract GiftableToken {
// Implements Burner
event Burn(uint256 _value);
constructor(string memory _name, string memory _symbol, uint8 _decimals, uint256 _expireTimestamp) public {
constructor(string memory _name, string memory _symbol, uint8 _decimals, uint256 _expireTimestamp) {
owner = msg.sender;
name = _name;
symbol = _symbol;
@ -61,7 +61,7 @@ contract GiftableToken {
}
// Implements ERC20
function totalSupply() public returns (uint256) {
function totalSupply() public view returns (uint256) {
return totalMinted - burned;
}
@ -137,6 +137,7 @@ contract GiftableToken {
burned += _value;
emit Burn(_value);
return true;
}
// Implements ERC20
@ -166,10 +167,11 @@ contract GiftableToken {
function transferOwnership(address _newOwner) public returns (bool) {
require(msg.sender == owner);
owner = _newOwner;
return true;
}
// Implements EIP165
function supportsInterface(bytes4 _sum) public returns (bool) {
function supportsInterface(bytes4 _sum) public pure returns (bool) {
if (_sum == 0xc6bb4b70) { // ERC20
return true;
}

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@ -2,13 +2,15 @@ SOLC = /usr/bin/solc
all:
$(SOLC) --bin GiftableToken.sol --evm-version byzantium | awk 'NR>3' > GiftableToken.bin
truncate -s -1 GiftableToken.bin
$(SOLC) --abi GiftableToken.sol --evm-version byzantium | awk 'NR>3' > GiftableToken.json
$(SOLC) --metadata GiftableToken.sol --evm-version byzantium | awk 'NR>3' > GiftableToken.metadata.json
$(SOLC) --bin StaticToken.sol --evm-version byzantium | awk 'NR>3' > StaticToken.bin
truncate -s -1 StaticToken.bin
$(SOLC) --abi StaticToken.sol --evm-version byzantium | awk 'NR>3' > StaticToken.json
$(SOLC) --metadata StaticToken.sol --evm-version byzantium | awk 'NR>3' > StaticToken.metadata.json
truncate -s -1 StaticToken.bin
truncate -s -1 GiftableToken.bin
install: all
cp -v Giftable*{json,bin} ../python/giftable_erc20_token/data/
cp -v Static*{json,bin} ../python/static_token/data/
cp -v *.json ../python/giftable_erc20_token/data/
cp -v *.bin ../python/giftable_erc20_token/data/

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@ -1 +1 @@
[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint8","name":"_decimals","type":"uint8"},{"internalType":"uint256","name":"_supply","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"TransferFrom","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]
[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint8","name":"_decimals","type":"uint8"},{"internalType":"uint256","name":"_supply","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"TransferFrom","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

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@ -24,7 +24,7 @@ contract StaticToken {
event TransferFrom(address indexed _from, address indexed _to, address indexed _spender, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
constructor(string memory _name, string memory _symbol, uint8 _decimals, uint256 _supply) public {
constructor(string memory _name, string memory _symbol, uint8 _decimals, uint256 _supply) {
owner = msg.sender;
name = _name;
symbol = _symbol;
@ -64,7 +64,7 @@ contract StaticToken {
}
// Implements EIP165
function supportsInterface(bytes4 _sum) public returns (bool) {
function supportsInterface(bytes4 _sum) public pure returns (bool) {
if (_sum == 0xc6bb4b70) { // ERC20
return true;
}