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-rw-r--r--contracts/tokens/.solhint.json20
-rw-r--r--contracts/tokens/.solhintignore3
-rw-r--r--contracts/tokens/CHANGELOG.json16
-rw-r--r--contracts/tokens/README.md74
-rw-r--r--contracts/tokens/compiler.json44
-rw-r--r--contracts/tokens/contracts/test/DummyERC20Token/DummyERC20Token.sol77
-rw-r--r--contracts/tokens/contracts/test/DummyERC20Token/DummyMultipleReturnERC20Token.sol69
-rw-r--r--contracts/tokens/contracts/test/DummyERC20Token/DummyNoReturnERC20Token.sol115
-rw-r--r--contracts/tokens/contracts/test/DummyERC721Receiver/DummyERC721Receiver.sol67
-rw-r--r--contracts/tokens/contracts/test/DummyERC721Receiver/InvalidERC721Receiver.sol66
-rw-r--r--contracts/tokens/contracts/test/DummyERC721Token/DummyERC721Token.sol63
-rw-r--r--contracts/tokens/contracts/test/ReentrantERC20Token/ReentrantERC20Token.sol188
-rw-r--r--contracts/tokens/contracts/tokens/ERC20Token/ERC20Token.sol148
-rw-r--r--contracts/tokens/contracts/tokens/ERC20Token/IERC20Token.sol87
-rw-r--r--contracts/tokens/contracts/tokens/ERC20Token/MintableERC20Token.sol60
-rw-r--r--contracts/tokens/contracts/tokens/ERC20Token/UnlimitedAllowanceERC20Token.sol70
-rw-r--r--contracts/tokens/contracts/tokens/ERC721Token/ERC721Token.sol277
-rw-r--r--contracts/tokens/contracts/tokens/ERC721Token/IERC721Receiver.sol44
-rw-r--r--contracts/tokens/contracts/tokens/ERC721Token/IERC721Token.sol158
-rw-r--r--contracts/tokens/contracts/tokens/ERC721Token/MintableERC721Token.sol82
-rw-r--r--contracts/tokens/contracts/tokens/EtherToken/IEtherToken.sol33
-rw-r--r--contracts/tokens/contracts/tokens/EtherToken/WETH9.sol758
-rw-r--r--contracts/tokens/contracts/tokens/ZRXToken/ERC20Token_v1.sol44
-rw-r--r--contracts/tokens/contracts/tokens/ZRXToken/Token_v1.sol39
-rw-r--r--contracts/tokens/contracts/tokens/ZRXToken/UnlimitedAllowanceToken_v1.sol52
-rw-r--r--contracts/tokens/contracts/tokens/ZRXToken/ZRXToken.sol41
-rw-r--r--contracts/tokens/package.json94
-rw-r--r--contracts/tokens/src/artifacts/index.ts49
-rw-r--r--contracts/tokens/src/index.ts2
-rw-r--r--contracts/tokens/src/wrappers/index.ts21
-rw-r--r--contracts/tokens/test/erc721_token.ts282
-rw-r--r--contracts/tokens/test/global_hooks.ts17
-rw-r--r--contracts/tokens/test/unlimited_allowance_token.ts194
-rw-r--r--contracts/tokens/test/weth9.ts142
-rw-r--r--contracts/tokens/test/zrx_token.ts203
-rw-r--r--contracts/tokens/tsconfig.json33
-rw-r--r--contracts/tokens/tslint.json6
37 files changed, 3738 insertions, 0 deletions
diff --git a/contracts/tokens/.solhint.json b/contracts/tokens/.solhint.json
new file mode 100644
index 000000000..076afe9f3
--- /dev/null
+++ b/contracts/tokens/.solhint.json
@@ -0,0 +1,20 @@
+{
+ "extends": "default",
+ "rules": {
+ "avoid-low-level-calls": false,
+ "avoid-tx-origin": "warn",
+ "bracket-align": false,
+ "code-complexity": false,
+ "const-name-snakecase": "error",
+ "expression-indent": "error",
+ "function-max-lines": false,
+ "func-order": "error",
+ "indent": ["error", 4],
+ "max-line-length": ["warn", 160],
+ "no-inline-assembly": false,
+ "quotes": ["error", "double"],
+ "separate-by-one-line-in-contract": "error",
+ "space-after-comma": "error",
+ "statement-indent": "error"
+ }
+}
diff --git a/contracts/tokens/.solhintignore b/contracts/tokens/.solhintignore
new file mode 100644
index 000000000..1e33ec53b
--- /dev/null
+++ b/contracts/tokens/.solhintignore
@@ -0,0 +1,3 @@
+contracts/tokens/ZRXToken/ERC20Token_v1.sol
+contracts/tokens/ZRXToken/Token_v1.sol
+contracts/tokens/ZRXToken/UnlimitedAllowanceToken_v1.sol
diff --git a/contracts/tokens/CHANGELOG.json b/contracts/tokens/CHANGELOG.json
new file mode 100644
index 000000000..5ff58c035
--- /dev/null
+++ b/contracts/tokens/CHANGELOG.json
@@ -0,0 +1,16 @@
+[
+ {
+ "name": "ZRXToken",
+ "version": "1.0.0",
+ "changes": [
+ {
+ "note": "protocol v1 deploy",
+ "networks": {
+ "1": "0xe41d2489571d322189246dafa5ebde1f4699f498",
+ "3": "0xff67881f8d12f372d91baae9752eb3631ff0ed00",
+ "42": "0x2002d3812f58e35f0ea1ffbf80a75a38c32175fa"
+ }
+ }
+ ]
+ }
+]
diff --git a/contracts/tokens/README.md b/contracts/tokens/README.md
new file mode 100644
index 000000000..9c4106d41
--- /dev/null
+++ b/contracts/tokens/README.md
@@ -0,0 +1,74 @@
+## Token contracts
+
+Token smart contracts that are used in the 0x protocol. Addresses of the deployed contracts can be found in the 0x [wiki](https://0xproject.com/wiki#Deployed-Addresses) or the [CHANGELOG](./CHANGELOG.json) of this package.
+
+## Usage
+
+Token contracts that make up and interact with version 2.0.0 of the protocol can be found in the [contracts](./contracts) directory. The contents of this directory are broken down into the following subdirectories:
+
+* [tokens](./contracts/tokens)
+ * This directory contains implementations of different tokens and token standards, including [wETH](https://weth.io/), ZRX, [ERC20](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md), and [ERC721](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md).
+* [test](./contracts/test)
+ * This directory contains mocks and other contracts that are used solely for testing contracts within the other directories.
+
+## Bug bounty
+
+A bug bounty for the 2.0.0 contracts is ongoing! Instructions can be found [here](https://0xproject.com/wiki#Bug-Bounty).
+
+## Contributing
+
+We strongly recommend that the community help us make improvements and determine the future direction of the protocol. To report bugs within this package, please create an issue in this repository.
+
+For proposals regarding the 0x protocol's smart contract architecture, message format, or additional functionality, go to the [0x Improvement Proposals (ZEIPs)](https://github.com/0xProject/ZEIPs) repository and follow the contribution guidelines provided therein.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install Dependencies
+
+If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:
+
+```bash
+yarn config set workspaces-experimental true
+```
+
+Then install dependencies
+
+```bash
+yarn install
+```
+
+### Build
+
+To build this package and all other monorepo packages that it depends on, run the following from the monorepo root directory:
+
+```bash
+PKG=@0x/contracts-tokens yarn build
+```
+
+Or continuously rebuild on change:
+
+```bash
+PKG=@0x/contracts-tokens yarn watch
+```
+
+### Clean
+
+```bash
+yarn clean
+```
+
+### Lint
+
+```bash
+yarn lint
+```
+
+### Run Tests
+
+```bash
+yarn test
+```
+
+#### Testing options
+
+Contracts testing options like coverage, profiling, revert traces or backing node choosing - are described [here](../TESTING.md).
diff --git a/contracts/tokens/compiler.json b/contracts/tokens/compiler.json
new file mode 100644
index 000000000..498c5d826
--- /dev/null
+++ b/contracts/tokens/compiler.json
@@ -0,0 +1,44 @@
+{
+ "artifactsDir": "./generated-artifacts",
+ "contractsDir": "./contracts",
+ "compilerSettings": {
+ "optimizer": {
+ "enabled": true,
+ "runs": 1000000
+ },
+ "outputSelection": {
+ "*": {
+ "*": [
+ "abi",
+ "evm.bytecode.object",
+ "evm.bytecode.sourceMap",
+ "evm.deployedBytecode.object",
+ "evm.deployedBytecode.sourceMap"
+ ]
+ }
+ }
+ },
+ "contracts": [
+ "DummyERC20Token",
+ "DummyMultipleReturnERC20Token",
+ "DummyNoReturnERC20Token",
+ "DummyERC721Receiver",
+ "InvalidERC721Receiver",
+ "DummyERC721Token",
+ "ReentrantERC20Token",
+ "ERC20Token",
+ "IERC20Token",
+ "MintableERC20Token",
+ "UnlimitedAllowanceERC20Token",
+ "ERC721Token",
+ "IERC721Receiver",
+ "IERC721Token",
+ "MintableERC721Token",
+ "IEtherToken",
+ "WETH9",
+ "ERC20Token_v1",
+ "Token_v1",
+ "UnlimitedAllowanceToken_v1",
+ "ZRXToken"
+ ]
+}
diff --git a/contracts/tokens/contracts/test/DummyERC20Token/DummyERC20Token.sol b/contracts/tokens/contracts/test/DummyERC20Token/DummyERC20Token.sol
new file mode 100644
index 000000000..33028db0c
--- /dev/null
+++ b/contracts/tokens/contracts/test/DummyERC20Token/DummyERC20Token.sol
@@ -0,0 +1,77 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "@0x/contracts-utils/contracts/utils/Ownable/Ownable.sol";
+import "../../tokens/ERC20Token/MintableERC20Token.sol";
+
+
+contract DummyERC20Token is
+ Ownable,
+ MintableERC20Token
+{
+ string public name;
+ string public symbol;
+ uint256 public decimals;
+ uint256 public constant MAX_MINT_AMOUNT = 10000000000000000000000;
+
+ constructor (
+ string _name,
+ string _symbol,
+ uint256 _decimals,
+ uint256 _totalSupply
+ )
+ public
+ {
+ name = _name;
+ symbol = _symbol;
+ decimals = _decimals;
+ _totalSupply = _totalSupply;
+ balances[msg.sender] = _totalSupply;
+ }
+
+ /// @dev Sets the balance of target address
+ /// @param _target Address or which balance will be updated
+ /// @param _value New balance of target address
+ function setBalance(address _target, uint256 _value)
+ external
+ onlyOwner
+ {
+ uint256 currBalance = balances[_target];
+ if (_value < currBalance) {
+ _totalSupply = safeSub(_totalSupply, safeSub(currBalance, _value));
+ } else {
+ _totalSupply = safeAdd(_totalSupply, safeSub(_value, currBalance));
+ }
+ balances[_target] = _value;
+ }
+
+ /// @dev Mints new tokens for sender
+ /// @param _value Amount of tokens to mint
+ function mint(uint256 _value)
+ external
+ {
+ require(
+ _value <= MAX_MINT_AMOUNT,
+ "VALUE_TOO_LARGE"
+ );
+
+ _mint(msg.sender, _value);
+ }
+}
diff --git a/contracts/tokens/contracts/test/DummyERC20Token/DummyMultipleReturnERC20Token.sol b/contracts/tokens/contracts/test/DummyERC20Token/DummyMultipleReturnERC20Token.sol
new file mode 100644
index 000000000..733d4437e
--- /dev/null
+++ b/contracts/tokens/contracts/test/DummyERC20Token/DummyMultipleReturnERC20Token.sol
@@ -0,0 +1,69 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "./DummyERC20Token.sol";
+
+
+// solhint-disable no-empty-blocks
+contract DummyMultipleReturnERC20Token is
+ DummyERC20Token
+{
+ constructor (
+ string _name,
+ string _symbol,
+ uint256 _decimals,
+ uint256 _totalSupply
+ )
+ public
+ DummyERC20Token(
+ _name,
+ _symbol,
+ _decimals,
+ _totalSupply
+ )
+ {}
+
+ /// @dev send `value` token to `to` from `from` on the condition it is approved by `from`
+ /// @param _from The address of the sender
+ /// @param _to The address of the recipient
+ /// @param _value The amount of token to be transferred
+ function transferFrom(
+ address _from,
+ address _to,
+ uint256 _value
+ )
+ external
+ returns (bool)
+ {
+ emit Transfer(
+ _from,
+ _to,
+ _value
+ );
+
+ // HACK: This contract will not compile if we remove `returns (bool)`, so we manually return 64 bytes (equiavalent to true, true)
+ assembly {
+ mstore(0, 1)
+ mstore(32, 1)
+ return(0, 64)
+ }
+ }
+}
+
diff --git a/contracts/tokens/contracts/test/DummyERC20Token/DummyNoReturnERC20Token.sol b/contracts/tokens/contracts/test/DummyERC20Token/DummyNoReturnERC20Token.sol
new file mode 100644
index 000000000..e16825a16
--- /dev/null
+++ b/contracts/tokens/contracts/test/DummyERC20Token/DummyNoReturnERC20Token.sol
@@ -0,0 +1,115 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "./DummyERC20Token.sol";
+
+
+// solhint-disable no-empty-blocks
+contract DummyNoReturnERC20Token is
+ DummyERC20Token
+{
+ constructor (
+ string _name,
+ string _symbol,
+ uint256 _decimals,
+ uint256 _totalSupply
+ )
+ public
+ DummyERC20Token(
+ _name,
+ _symbol,
+ _decimals,
+ _totalSupply
+ )
+ {}
+
+ /// @dev send `value` token to `to` from `msg.sender`
+ /// @param _to The address of the recipient
+ /// @param _value The amount of token to be transferred
+ function transfer(address _to, uint256 _value)
+ external
+ returns (bool)
+ {
+ require(
+ balances[msg.sender] >= _value,
+ "ERC20_INSUFFICIENT_BALANCE"
+ );
+ require(
+ balances[_to] + _value >= balances[_to],
+ "UINT256_OVERFLOW"
+ );
+
+ balances[msg.sender] -= _value;
+ balances[_to] += _value;
+
+ emit Transfer(
+ msg.sender,
+ _to,
+ _value
+ );
+
+ // HACK: This contract will not compile if we remove `returns (bool)`, so we manually return no data
+ assembly {
+ return(0, 0)
+ }
+ }
+
+ /// @dev send `value` token to `to` from `from` on the condition it is approved by `from`
+ /// @param _from The address of the sender
+ /// @param _to The address of the recipient
+ /// @param _value The amount of token to be transferred
+ function transferFrom(
+ address _from,
+ address _to,
+ uint256 _value
+ )
+ external
+ returns (bool)
+ {
+ require(
+ balances[_from] >= _value,
+ "ERC20_INSUFFICIENT_BALANCE"
+ );
+ require(
+ allowed[_from][msg.sender] >= _value,
+ "ERC20_INSUFFICIENT_ALLOWANCE"
+ );
+ require(
+ balances[_to] + _value >= balances[_to],
+ "UINT256_OVERFLOW"
+ );
+
+ balances[_to] += _value;
+ balances[_from] -= _value;
+ allowed[_from][msg.sender] -= _value;
+
+ emit Transfer(
+ _from,
+ _to,
+ _value
+ );
+
+ // HACK: This contract will not compile if we remove `returns (bool)`, so we manually return no data
+ assembly {
+ return(0, 0)
+ }
+ }
+}
+
diff --git a/contracts/tokens/contracts/test/DummyERC721Receiver/DummyERC721Receiver.sol b/contracts/tokens/contracts/test/DummyERC721Receiver/DummyERC721Receiver.sol
new file mode 100644
index 000000000..6c8371559
--- /dev/null
+++ b/contracts/tokens/contracts/test/DummyERC721Receiver/DummyERC721Receiver.sol
@@ -0,0 +1,67 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "../../tokens/ERC721Token/IERC721Receiver.sol";
+
+
+contract DummyERC721Receiver is
+ IERC721Receiver
+{
+ // Function selector for ERC721Receiver.onERC721Received
+ // 0x150b7a02
+ bytes4 constant internal ERC721_RECEIVED = bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"));
+
+ event TokenReceived(
+ address operator,
+ address from,
+ uint256 tokenId,
+ bytes data
+ );
+
+ /// @notice Handle the receipt of an NFT
+ /// @dev The ERC721 smart contract calls this function on the recipient
+ /// after a `transfer`. This function MAY throw to revert and reject the
+ /// transfer. Return of other than the magic value MUST result in the
+ /// transaction being reverted.
+ /// Note: the contract address is always the message sender.
+ /// @param _operator The address which called `safeTransferFrom` function
+ /// @param _from The address which previously owned the token
+ /// @param _tokenId The NFT identifier which is being transferred
+ /// @param _data Additional data with no specified format
+ /// @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
+ /// unless throwing
+ function onERC721Received(
+ address _operator,
+ address _from,
+ uint256 _tokenId,
+ bytes _data
+ )
+ external
+ returns (bytes4)
+ {
+ emit TokenReceived(
+ _operator,
+ _from,
+ _tokenId,
+ _data
+ );
+ return ERC721_RECEIVED;
+ }
+}
diff --git a/contracts/tokens/contracts/test/DummyERC721Receiver/InvalidERC721Receiver.sol b/contracts/tokens/contracts/test/DummyERC721Receiver/InvalidERC721Receiver.sol
new file mode 100644
index 000000000..309633bf5
--- /dev/null
+++ b/contracts/tokens/contracts/test/DummyERC721Receiver/InvalidERC721Receiver.sol
@@ -0,0 +1,66 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "../../tokens/ERC721Token/IERC721Receiver.sol";
+
+
+contract InvalidERC721Receiver is
+ IERC721Receiver
+{
+ // Actual function signature is `onERC721Received(address,address,uint256,bytes)`
+ bytes4 constant internal INVALID_ERC721_RECEIVED = bytes4(keccak256("onERC721Received(address,uint256,bytes)"));
+
+ event TokenReceived(
+ address operator,
+ address from,
+ uint256 tokenId,
+ bytes data
+ );
+
+ /// @notice Handle the receipt of an NFT
+ /// @dev The ERC721 smart contract calls this function on the recipient
+ /// after a `transfer`. This function MAY throw to revert and reject the
+ /// transfer. Return of other than the magic value MUST result in the
+ /// transaction being reverted.
+ /// Note: the contract address is always the message sender.
+ /// @param _operator The address which called `safeTransferFrom` function
+ /// @param _from The address which previously owned the token
+ /// @param _tokenId The NFT identifier which is being transferred
+ /// @param _data Additional data with no specified format
+ /// @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
+ /// unless throwing
+ function onERC721Received(
+ address _operator,
+ address _from,
+ uint256 _tokenId,
+ bytes _data
+ )
+ external
+ returns (bytes4)
+ {
+ emit TokenReceived(
+ _operator,
+ _from,
+ _tokenId,
+ _data
+ );
+ return INVALID_ERC721_RECEIVED;
+ }
+}
diff --git a/contracts/tokens/contracts/test/DummyERC721Token/DummyERC721Token.sol b/contracts/tokens/contracts/test/DummyERC721Token/DummyERC721Token.sol
new file mode 100644
index 000000000..4c978b2df
--- /dev/null
+++ b/contracts/tokens/contracts/test/DummyERC721Token/DummyERC721Token.sol
@@ -0,0 +1,63 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "../../tokens/ERC721Token/MintableERC721Token.sol";
+import "@0x/contracts-utils/contracts/utils/Ownable/Ownable.sol";
+
+
+// solhint-disable no-empty-blocks
+contract DummyERC721Token is
+ Ownable,
+ MintableERC721Token
+{
+ string public name;
+ string public symbol;
+
+ constructor (
+ string _name,
+ string _symbol
+ )
+ public
+ {
+ name = _name;
+ symbol = _symbol;
+ }
+
+ /// @dev Function to mint a new token
+ /// Reverts if the given token ID already exists
+ /// @param _to Address of the beneficiary that will own the minted token
+ /// @param _tokenId ID of the token to be minted by the msg.sender
+ function mint(address _to, uint256 _tokenId)
+ external
+ {
+ _mint(_to, _tokenId);
+ }
+
+ /// @dev Function to burn a token
+ /// Reverts if the given token ID doesn't exist or not called by contract owner
+ /// @param _owner Owner of token with given token ID
+ /// @param _tokenId ID of the token to be burned by the msg.sender
+ function burn(address _owner, uint256 _tokenId)
+ external
+ onlyOwner
+ {
+ _burn(_owner, _tokenId);
+ }
+}
diff --git a/contracts/tokens/contracts/test/ReentrantERC20Token/ReentrantERC20Token.sol b/contracts/tokens/contracts/test/ReentrantERC20Token/ReentrantERC20Token.sol
new file mode 100644
index 000000000..d8c65929d
--- /dev/null
+++ b/contracts/tokens/contracts/test/ReentrantERC20Token/ReentrantERC20Token.sol
@@ -0,0 +1,188 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+pragma experimental ABIEncoderV2;
+
+import "@0x/contracts-utils/contracts/utils/LibBytes/LibBytes.sol";
+import "../../tokens/ERC20Token/ERC20Token.sol";
+import "@0x/contracts-interfaces/contracts/protocol/Exchange/IExchange.sol";
+import "@0x/contracts-libs/contracts/libs/LibOrder.sol";
+
+
+// solhint-disable no-unused-vars
+contract ReentrantERC20Token is
+ ERC20Token
+{
+ using LibBytes for bytes;
+
+ // solhint-disable-next-line var-name-mixedcase
+ IExchange internal EXCHANGE;
+
+ bytes internal constant REENTRANCY_ILLEGAL_REVERT_REASON = abi.encodeWithSelector(
+ bytes4(keccak256("Error(string)")),
+ "REENTRANCY_ILLEGAL"
+ );
+
+ // All of these functions are potentially vulnerable to reentrancy
+ // We do not test any "noThrow" functions because `fillOrderNoThrow` makes a delegatecall to `fillOrder`
+ enum ExchangeFunction {
+ FILL_ORDER,
+ FILL_OR_KILL_ORDER,
+ BATCH_FILL_ORDERS,
+ BATCH_FILL_OR_KILL_ORDERS,
+ MARKET_BUY_ORDERS,
+ MARKET_SELL_ORDERS,
+ MATCH_ORDERS,
+ CANCEL_ORDER,
+ BATCH_CANCEL_ORDERS,
+ CANCEL_ORDERS_UP_TO,
+ SET_SIGNATURE_VALIDATOR_APPROVAL
+ }
+
+ uint8 internal currentFunctionId = 0;
+
+ constructor (address _exchange)
+ public
+ {
+ EXCHANGE = IExchange(_exchange);
+ }
+
+ /// @dev Set the current function that will be called when `transferFrom` is called.
+ /// @param _currentFunctionId Id that corresponds to function name.
+ function setCurrentFunction(uint8 _currentFunctionId)
+ external
+ {
+ currentFunctionId = _currentFunctionId;
+ }
+
+ /// @dev A version of `transferFrom` that attempts to reenter the Exchange contract.
+ /// @param _from The address of the sender
+ /// @param _to The address of the recipient
+ /// @param _value The amount of token to be transferred
+ function transferFrom(
+ address _from,
+ address _to,
+ uint256 _value
+ )
+ external
+ returns (bool)
+ {
+ // This order would normally be invalid, but it will be used strictly for testing reentrnacy.
+ // Any reentrancy checks will happen before any other checks that invalidate the order.
+ LibOrder.Order memory order;
+
+ // Initialize remaining null parameters
+ bytes memory signature;
+ LibOrder.Order[] memory orders;
+ uint256[] memory takerAssetFillAmounts;
+ bytes[] memory signatures;
+ bytes memory callData;
+
+ // Create callData for function that corresponds to currentFunctionId
+ if (currentFunctionId == uint8(ExchangeFunction.FILL_ORDER)) {
+ callData = abi.encodeWithSelector(
+ EXCHANGE.fillOrder.selector,
+ order,
+ 0,
+ signature
+ );
+ } else if (currentFunctionId == uint8(ExchangeFunction.FILL_OR_KILL_ORDER)) {
+ callData = abi.encodeWithSelector(
+ EXCHANGE.fillOrKillOrder.selector,
+ order,
+ 0,
+ signature
+ );
+ } else if (currentFunctionId == uint8(ExchangeFunction.BATCH_FILL_ORDERS)) {
+ callData = abi.encodeWithSelector(
+ EXCHANGE.batchFillOrders.selector,
+ orders,
+ takerAssetFillAmounts,
+ signatures
+ );
+ } else if (currentFunctionId == uint8(ExchangeFunction.BATCH_FILL_OR_KILL_ORDERS)) {
+ callData = abi.encodeWithSelector(
+ EXCHANGE.batchFillOrKillOrders.selector,
+ orders,
+ takerAssetFillAmounts,
+ signatures
+ );
+ } else if (currentFunctionId == uint8(ExchangeFunction.MARKET_BUY_ORDERS)) {
+ callData = abi.encodeWithSelector(
+ EXCHANGE.marketBuyOrders.selector,
+ orders,
+ 0,
+ signatures
+ );
+ } else if (currentFunctionId == uint8(ExchangeFunction.MARKET_SELL_ORDERS)) {
+ callData = abi.encodeWithSelector(
+ EXCHANGE.marketSellOrders.selector,
+ orders,
+ 0,
+ signatures
+ );
+ } else if (currentFunctionId == uint8(ExchangeFunction.MATCH_ORDERS)) {
+ callData = abi.encodeWithSelector(
+ EXCHANGE.matchOrders.selector,
+ order,
+ order,
+ signature,
+ signature
+ );
+ } else if (currentFunctionId == uint8(ExchangeFunction.CANCEL_ORDER)) {
+ callData = abi.encodeWithSelector(
+ EXCHANGE.cancelOrder.selector,
+ order
+ );
+ } else if (currentFunctionId == uint8(ExchangeFunction.BATCH_CANCEL_ORDERS)) {
+ callData = abi.encodeWithSelector(
+ EXCHANGE.batchCancelOrders.selector,
+ orders
+ );
+ } else if (currentFunctionId == uint8(ExchangeFunction.CANCEL_ORDERS_UP_TO)) {
+ callData = abi.encodeWithSelector(
+ EXCHANGE.cancelOrdersUpTo.selector,
+ 0
+ );
+ } else if (currentFunctionId == uint8(ExchangeFunction.SET_SIGNATURE_VALIDATOR_APPROVAL)) {
+ callData = abi.encodeWithSelector(
+ EXCHANGE.setSignatureValidatorApproval.selector,
+ address(0),
+ false
+ );
+ }
+
+ // Call Exchange function, swallow error
+ address(EXCHANGE).call(callData);
+
+ // Revert reason is 100 bytes
+ bytes memory returnData = new bytes(100);
+
+ // Copy return data
+ assembly {
+ returndatacopy(add(returnData, 32), 0, 100)
+ }
+
+ // Revert if function reverted with REENTRANCY_ILLEGAL error
+ require(!REENTRANCY_ILLEGAL_REVERT_REASON.equals(returnData));
+
+ // Transfer will return true if function failed for any other reason
+ return true;
+ }
+} \ No newline at end of file
diff --git a/contracts/tokens/contracts/tokens/ERC20Token/ERC20Token.sol b/contracts/tokens/contracts/tokens/ERC20Token/ERC20Token.sol
new file mode 100644
index 000000000..725d304df
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/ERC20Token/ERC20Token.sol
@@ -0,0 +1,148 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "./IERC20Token.sol";
+
+
+contract ERC20Token is
+ IERC20Token
+{
+ mapping (address => uint256) internal balances;
+ mapping (address => mapping (address => uint256)) internal allowed;
+
+ uint256 internal _totalSupply;
+
+ /// @dev send `value` token to `to` from `msg.sender`
+ /// @param _to The address of the recipient
+ /// @param _value The amount of token to be transferred
+ /// @return True if transfer was successful
+ function transfer(address _to, uint256 _value)
+ external
+ returns (bool)
+ {
+ require(
+ balances[msg.sender] >= _value,
+ "ERC20_INSUFFICIENT_BALANCE"
+ );
+ require(
+ balances[_to] + _value >= balances[_to],
+ "UINT256_OVERFLOW"
+ );
+
+ balances[msg.sender] -= _value;
+ balances[_to] += _value;
+
+ emit Transfer(
+ msg.sender,
+ _to,
+ _value
+ );
+
+ return true;
+ }
+
+ /// @dev send `value` token to `to` from `from` on the condition it is approved by `from`
+ /// @param _from The address of the sender
+ /// @param _to The address of the recipient
+ /// @param _value The amount of token to be transferred
+ /// @return True if transfer was successful
+ function transferFrom(
+ address _from,
+ address _to,
+ uint256 _value
+ )
+ external
+ returns (bool)
+ {
+ require(
+ balances[_from] >= _value,
+ "ERC20_INSUFFICIENT_BALANCE"
+ );
+ require(
+ allowed[_from][msg.sender] >= _value,
+ "ERC20_INSUFFICIENT_ALLOWANCE"
+ );
+ require(
+ balances[_to] + _value >= balances[_to],
+ "UINT256_OVERFLOW"
+ );
+
+ balances[_to] += _value;
+ balances[_from] -= _value;
+ allowed[_from][msg.sender] -= _value;
+
+ emit Transfer(
+ _from,
+ _to,
+ _value
+ );
+
+ return true;
+ }
+
+ /// @dev `msg.sender` approves `_spender` to spend `_value` tokens
+ /// @param _spender The address of the account able to transfer the tokens
+ /// @param _value The amount of wei to be approved for transfer
+ /// @return Always true if the call has enough gas to complete execution
+ function approve(address _spender, uint256 _value)
+ external
+ returns (bool)
+ {
+ allowed[msg.sender][_spender] = _value;
+ emit Approval(
+ msg.sender,
+ _spender,
+ _value
+ );
+ return true;
+ }
+
+ /// @dev Query total supply of token
+ /// @return Total supply of token
+ function totalSupply()
+ external
+ view
+ returns (uint256)
+ {
+ return _totalSupply;
+ }
+
+ /// @dev Query the balance of owner
+ /// @param _owner The address from which the balance will be retrieved
+ /// @return Balance of owner
+ function balanceOf(address _owner)
+ external
+ view
+ returns (uint256)
+ {
+ return balances[_owner];
+ }
+
+ /// @param _owner The address of the account owning tokens
+ /// @param _spender The address of the account able to transfer the tokens
+ /// @return Amount of remaining tokens allowed to spent
+ function allowance(address _owner, address _spender)
+ external
+ view
+ returns (uint256)
+ {
+ return allowed[_owner][_spender];
+ }
+}
diff --git a/contracts/tokens/contracts/tokens/ERC20Token/IERC20Token.sol b/contracts/tokens/contracts/tokens/ERC20Token/IERC20Token.sol
new file mode 100644
index 000000000..258d47393
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/ERC20Token/IERC20Token.sol
@@ -0,0 +1,87 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+
+contract IERC20Token {
+
+ // solhint-disable no-simple-event-func-name
+ event Transfer(
+ address indexed _from,
+ address indexed _to,
+ uint256 _value
+ );
+
+ event Approval(
+ address indexed _owner,
+ address indexed _spender,
+ uint256 _value
+ );
+
+ /// @dev send `value` token to `to` from `msg.sender`
+ /// @param _to The address of the recipient
+ /// @param _value The amount of token to be transferred
+ /// @return True if transfer was successful
+ function transfer(address _to, uint256 _value)
+ external
+ returns (bool);
+
+ /// @dev send `value` token to `to` from `from` on the condition it is approved by `from`
+ /// @param _from The address of the sender
+ /// @param _to The address of the recipient
+ /// @param _value The amount of token to be transferred
+ /// @return True if transfer was successful
+ function transferFrom(
+ address _from,
+ address _to,
+ uint256 _value
+ )
+ external
+ returns (bool);
+
+ /// @dev `msg.sender` approves `_spender` to spend `_value` tokens
+ /// @param _spender The address of the account able to transfer the tokens
+ /// @param _value The amount of wei to be approved for transfer
+ /// @return Always true if the call has enough gas to complete execution
+ function approve(address _spender, uint256 _value)
+ external
+ returns (bool);
+
+ /// @dev Query total supply of token
+ /// @return Total supply of token
+ function totalSupply()
+ external
+ view
+ returns (uint256);
+
+ /// @param _owner The address from which the balance will be retrieved
+ /// @return Balance of owner
+ function balanceOf(address _owner)
+ external
+ view
+ returns (uint256);
+
+ /// @param _owner The address of the account owning tokens
+ /// @param _spender The address of the account able to transfer the tokens
+ /// @return Amount of remaining tokens allowed to spent
+ function allowance(address _owner, address _spender)
+ external
+ view
+ returns (uint256);
+}
diff --git a/contracts/tokens/contracts/tokens/ERC20Token/MintableERC20Token.sol b/contracts/tokens/contracts/tokens/ERC20Token/MintableERC20Token.sol
new file mode 100644
index 000000000..58bccb5a1
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/ERC20Token/MintableERC20Token.sol
@@ -0,0 +1,60 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "@0x/contracts-utils/contracts/utils/SafeMath/SafeMath.sol";
+import "./UnlimitedAllowanceERC20Token.sol";
+
+
+contract MintableERC20Token is
+ SafeMath,
+ UnlimitedAllowanceERC20Token
+{
+ /// @dev Mints new tokens
+ /// @param _to Address of the beneficiary that will own the minted token
+ /// @param _value Amount of tokens to mint
+ function _mint(address _to, uint256 _value)
+ internal
+ {
+ balances[_to] = safeAdd(_value, balances[_to]);
+ _totalSupply = safeAdd(_totalSupply, _value);
+
+ emit Transfer(
+ address(0),
+ _to,
+ _value
+ );
+ }
+
+ /// @dev Mints new tokens
+ /// @param _owner Owner of tokens that will be burned
+ /// @param _value Amount of tokens to burn
+ function _burn(address _owner, uint256 _value)
+ internal
+ {
+ balances[_owner] = safeSub(balances[_owner], _value);
+ _totalSupply = safeSub(_totalSupply, _value);
+
+ emit Transfer(
+ _owner,
+ address(0),
+ _value
+ );
+ }
+}
diff --git a/contracts/tokens/contracts/tokens/ERC20Token/UnlimitedAllowanceERC20Token.sol b/contracts/tokens/contracts/tokens/ERC20Token/UnlimitedAllowanceERC20Token.sol
new file mode 100644
index 000000000..2e5bd4348
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/ERC20Token/UnlimitedAllowanceERC20Token.sol
@@ -0,0 +1,70 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "../ERC20Token/ERC20Token.sol";
+
+
+contract UnlimitedAllowanceERC20Token is
+ ERC20Token
+{
+ uint256 constant internal MAX_UINT = 2**256 - 1;
+
+ /// @dev ERC20 transferFrom, modified such that an allowance of MAX_UINT represents an unlimited allowance. See https://github.com/ethereum/EIPs/issues/717
+ /// @param _from Address to transfer from.
+ /// @param _to Address to transfer to.
+ /// @param _value Amount to transfer.
+ /// @return Success of transfer.
+ function transferFrom(
+ address _from,
+ address _to,
+ uint256 _value
+ )
+ external
+ returns (bool)
+ {
+ uint256 allowance = allowed[_from][msg.sender];
+ require(
+ balances[_from] >= _value,
+ "ERC20_INSUFFICIENT_BALANCE"
+ );
+ require(
+ allowance >= _value,
+ "ERC20_INSUFFICIENT_ALLOWANCE"
+ );
+ require(
+ balances[_to] + _value >= balances[_to],
+ "UINT256_OVERFLOW"
+ );
+
+ balances[_to] += _value;
+ balances[_from] -= _value;
+ if (allowance < MAX_UINT) {
+ allowed[_from][msg.sender] -= _value;
+ }
+
+ emit Transfer(
+ _from,
+ _to,
+ _value
+ );
+
+ return true;
+ }
+}
diff --git a/contracts/tokens/contracts/tokens/ERC721Token/ERC721Token.sol b/contracts/tokens/contracts/tokens/ERC721Token/ERC721Token.sol
new file mode 100644
index 000000000..600cee1ab
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/ERC721Token/ERC721Token.sol
@@ -0,0 +1,277 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "./IERC721Token.sol";
+import "./IERC721Receiver.sol";
+import "@0x/contracts-utils/contracts/utils/SafeMath/SafeMath.sol";
+
+
+contract ERC721Token is
+ IERC721Token,
+ SafeMath
+{
+ // Function selector for ERC721Receiver.onERC721Received
+ // 0x150b7a02
+ bytes4 constant internal ERC721_RECEIVED = bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"));
+
+ // Mapping of tokenId => owner
+ mapping (uint256 => address) internal owners;
+
+ // Mapping of tokenId => approved address
+ mapping (uint256 => address) internal approvals;
+
+ // Mapping of owner => number of tokens owned
+ mapping (address => uint256) internal balances;
+
+ // Mapping of owner => operator => approved
+ mapping (address => mapping (address => bool)) internal operatorApprovals;
+
+ /// @notice Transfers the ownership of an NFT from one address to another address
+ /// @dev Throws unless `msg.sender` is the current owner, an authorized
+ /// operator, or the approved address for this NFT. Throws if `_from` is
+ /// not the current owner. Throws if `_to` is the zero address. Throws if
+ /// `_tokenId` is not a valid NFT. When transfer is complete, this function
+ /// checks if `_to` is a smart contract (code size > 0). If so, it calls
+ /// `onERC721Received` on `_to` and throws if the return value is not
+ /// `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`.
+ /// @param _from The current owner of the NFT
+ /// @param _to The new owner
+ /// @param _tokenId The NFT to transfer
+ /// @param _data Additional data with no specified format, sent in call to `_to`
+ function safeTransferFrom(
+ address _from,
+ address _to,
+ uint256 _tokenId,
+ bytes _data
+ )
+ external
+ {
+ transferFrom(
+ _from,
+ _to,
+ _tokenId
+ );
+
+ uint256 receiverCodeSize;
+ assembly {
+ receiverCodeSize := extcodesize(_to)
+ }
+ if (receiverCodeSize > 0) {
+ bytes4 selector = IERC721Receiver(_to).onERC721Received(
+ msg.sender,
+ _from,
+ _tokenId,
+ _data
+ );
+ require(
+ selector == ERC721_RECEIVED,
+ "ERC721_INVALID_SELECTOR"
+ );
+ }
+ }
+
+ /// @notice Transfers the ownership of an NFT from one address to another address
+ /// @dev This works identically to the other function with an extra data parameter,
+ /// except this function just sets data to "".
+ /// @param _from The current owner of the NFT
+ /// @param _to The new owner
+ /// @param _tokenId The NFT to transfer
+ function safeTransferFrom(
+ address _from,
+ address _to,
+ uint256 _tokenId
+ )
+ external
+ {
+ transferFrom(
+ _from,
+ _to,
+ _tokenId
+ );
+
+ uint256 receiverCodeSize;
+ assembly {
+ receiverCodeSize := extcodesize(_to)
+ }
+ if (receiverCodeSize > 0) {
+ bytes4 selector = IERC721Receiver(_to).onERC721Received(
+ msg.sender,
+ _from,
+ _tokenId,
+ ""
+ );
+ require(
+ selector == ERC721_RECEIVED,
+ "ERC721_INVALID_SELECTOR"
+ );
+ }
+ }
+
+ /// @notice Change or reaffirm the approved address for an NFT
+ /// @dev The zero address indicates there is no approved address.
+ /// Throws unless `msg.sender` is the current NFT owner, or an authorized
+ /// operator of the current owner.
+ /// @param _approved The new approved NFT controller
+ /// @param _tokenId The NFT to approve
+ function approve(address _approved, uint256 _tokenId)
+ external
+ {
+ address owner = ownerOf(_tokenId);
+ require(
+ msg.sender == owner || isApprovedForAll(owner, msg.sender),
+ "ERC721_INVALID_SENDER"
+ );
+
+ approvals[_tokenId] = _approved;
+ emit Approval(
+ owner,
+ _approved,
+ _tokenId
+ );
+ }
+
+ /// @notice Enable or disable approval for a third party ("operator") to manage
+ /// all of `msg.sender`'s assets
+ /// @dev Emits the ApprovalForAll event. The contract MUST allow
+ /// multiple operators per owner.
+ /// @param _operator Address to add to the set of authorized operators
+ /// @param _approved True if the operator is approved, false to revoke approval
+ function setApprovalForAll(address _operator, bool _approved)
+ external
+ {
+ operatorApprovals[msg.sender][_operator] = _approved;
+ emit ApprovalForAll(
+ msg.sender,
+ _operator,
+ _approved
+ );
+ }
+
+ /// @notice Count all NFTs assigned to an owner
+ /// @dev NFTs assigned to the zero address are considered invalid, and this
+ /// function throws for queries about the zero address.
+ /// @param _owner An address for whom to query the balance
+ /// @return The number of NFTs owned by `_owner`, possibly zero
+ function balanceOf(address _owner)
+ external
+ view
+ returns (uint256)
+ {
+ require(
+ _owner != address(0),
+ "ERC721_ZERO_OWNER"
+ );
+ return balances[_owner];
+ }
+
+ /// @notice Transfer ownership of an NFT -- THE CALLER IS RESPONSIBLE
+ /// TO CONFIRM THAT `_to` IS CAPABLE OF RECEIVING NFTS OR ELSE
+ /// THEY MAY BE PERMANENTLY LOST
+ /// @dev Throws unless `msg.sender` is the current owner, an authorized
+ /// operator, or the approved address for this NFT. Throws if `_from` is
+ /// not the current owner. Throws if `_to` is the zero address. Throws if
+ /// `_tokenId` is not a valid NFT.
+ /// @param _from The current owner of the NFT
+ /// @param _to The new owner
+ /// @param _tokenId The NFT to transfer
+ function transferFrom(
+ address _from,
+ address _to,
+ uint256 _tokenId
+ )
+ public
+ {
+ require(
+ _to != address(0),
+ "ERC721_ZERO_TO_ADDRESS"
+ );
+
+ address owner = ownerOf(_tokenId);
+ require(
+ _from == owner,
+ "ERC721_OWNER_MISMATCH"
+ );
+
+ address spender = msg.sender;
+ address approvedAddress = getApproved(_tokenId);
+ require(
+ spender == owner ||
+ isApprovedForAll(owner, spender) ||
+ approvedAddress == spender,
+ "ERC721_INVALID_SPENDER"
+ );
+
+ if (approvedAddress != address(0)) {
+ approvals[_tokenId] = address(0);
+ }
+
+ owners[_tokenId] = _to;
+ balances[_from] = safeSub(balances[_from], 1);
+ balances[_to] = safeAdd(balances[_to], 1);
+
+ emit Transfer(
+ _from,
+ _to,
+ _tokenId
+ );
+ }
+
+ /// @notice Find the owner of an NFT
+ /// @dev NFTs assigned to zero address are considered invalid, and queries
+ /// about them do throw.
+ /// @param _tokenId The identifier for an NFT
+ /// @return The address of the owner of the NFT
+ function ownerOf(uint256 _tokenId)
+ public
+ view
+ returns (address)
+ {
+ address owner = owners[_tokenId];
+ require(
+ owner != address(0),
+ "ERC721_ZERO_OWNER"
+ );
+ return owner;
+ }
+
+ /// @notice Get the approved address for a single NFT
+ /// @dev Throws if `_tokenId` is not a valid NFT.
+ /// @param _tokenId The NFT to find the approved address for
+ /// @return The approved address for this NFT, or the zero address if there is none
+ function getApproved(uint256 _tokenId)
+ public
+ view
+ returns (address)
+ {
+ return approvals[_tokenId];
+ }
+
+ /// @notice Query if an address is an authorized operator for another address
+ /// @param _owner The address that owns the NFTs
+ /// @param _operator The address that acts on behalf of the owner
+ /// @return True if `_operator` is an approved operator for `_owner`, false otherwise
+ function isApprovedForAll(address _owner, address _operator)
+ public
+ view
+ returns (bool)
+ {
+ return operatorApprovals[_owner][_operator];
+ }
+}
diff --git a/contracts/tokens/contracts/tokens/ERC721Token/IERC721Receiver.sol b/contracts/tokens/contracts/tokens/ERC721Token/IERC721Receiver.sol
new file mode 100644
index 000000000..8e0e32ab2
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/ERC721Token/IERC721Receiver.sol
@@ -0,0 +1,44 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+
+contract IERC721Receiver {
+
+ /// @notice Handle the receipt of an NFT
+ /// @dev The ERC721 smart contract calls this function on the recipient
+ /// after a `transfer`. This function MAY throw to revert and reject the
+ /// transfer. Return of other than the magic value MUST result in the
+ /// transaction being reverted.
+ /// Note: the contract address is always the message sender.
+ /// @param _operator The address which called `safeTransferFrom` function
+ /// @param _from The address which previously owned the token
+ /// @param _tokenId The NFT identifier which is being transferred
+ /// @param _data Additional data with no specified format
+ /// @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
+ /// unless throwing
+ function onERC721Received(
+ address _operator,
+ address _from,
+ uint256 _tokenId,
+ bytes _data
+ )
+ external
+ returns (bytes4);
+}
diff --git a/contracts/tokens/contracts/tokens/ERC721Token/IERC721Token.sol b/contracts/tokens/contracts/tokens/ERC721Token/IERC721Token.sol
new file mode 100644
index 000000000..ac992c80d
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/ERC721Token/IERC721Token.sol
@@ -0,0 +1,158 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+
+contract IERC721Token {
+
+ /// @dev This emits when ownership of any NFT changes by any mechanism.
+ /// This event emits when NFTs are created (`from` == 0) and destroyed
+ /// (`to` == 0). Exception: during contract creation, any number of NFTs
+ /// may be created and assigned without emitting Transfer. At the time of
+ /// any transfer, the approved address for that NFT (if any) is reset to none.
+ event Transfer(
+ address indexed _from,
+ address indexed _to,
+ uint256 indexed _tokenId
+ );
+
+ /// @dev This emits when the approved address for an NFT is changed or
+ /// reaffirmed. The zero address indicates there is no approved address.
+ /// When a Transfer event emits, this also indicates that the approved
+ /// address for that NFT (if any) is reset to none.
+ event Approval(
+ address indexed _owner,
+ address indexed _approved,
+ uint256 indexed _tokenId
+ );
+
+ /// @dev This emits when an operator is enabled or disabled for an owner.
+ /// The operator can manage all NFTs of the owner.
+ event ApprovalForAll(
+ address indexed _owner,
+ address indexed _operator,
+ bool _approved
+ );
+
+ /// @notice Transfers the ownership of an NFT from one address to another address
+ /// @dev Throws unless `msg.sender` is the current owner, an authorized
+ /// perator, or the approved address for this NFT. Throws if `_from` is
+ /// not the current owner. Throws if `_to` is the zero address. Throws if
+ /// `_tokenId` is not a valid NFT. When transfer is complete, this function
+ /// checks if `_to` is a smart contract (code size > 0). If so, it calls
+ /// `onERC721Received` on `_to` and throws if the return value is not
+ /// `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`.
+ /// @param _from The current owner of the NFT
+ /// @param _to The new owner
+ /// @param _tokenId The NFT to transfer
+ /// @param _data Additional data with no specified format, sent in call to `_to`
+ function safeTransferFrom(
+ address _from,
+ address _to,
+ uint256 _tokenId,
+ bytes _data
+ )
+ external;
+
+ /// @notice Transfers the ownership of an NFT from one address to another address
+ /// @dev This works identically to the other function with an extra data parameter,
+ /// except this function just sets data to "".
+ /// @param _from The current owner of the NFT
+ /// @param _to The new owner
+ /// @param _tokenId The NFT to transfer
+ function safeTransferFrom(
+ address _from,
+ address _to,
+ uint256 _tokenId
+ )
+ external;
+
+ /// @notice Change or reaffirm the approved address for an NFT
+ /// @dev The zero address indicates there is no approved address.
+ /// Throws unless `msg.sender` is the current NFT owner, or an authorized
+ /// operator of the current owner.
+ /// @param _approved The new approved NFT controller
+ /// @param _tokenId The NFT to approve
+ function approve(address _approved, uint256 _tokenId)
+ external;
+
+ /// @notice Enable or disable approval for a third party ("operator") to manage
+ /// all of `msg.sender`'s assets
+ /// @dev Emits the ApprovalForAll event. The contract MUST allow
+ /// multiple operators per owner.
+ /// @param _operator Address to add to the set of authorized operators
+ /// @param _approved True if the operator is approved, false to revoke approval
+ function setApprovalForAll(address _operator, bool _approved)
+ external;
+
+ /// @notice Count all NFTs assigned to an owner
+ /// @dev NFTs assigned to the zero address are considered invalid, and this
+ /// function throws for queries about the zero address.
+ /// @param _owner An address for whom to query the balance
+ /// @return The number of NFTs owned by `_owner`, possibly zero
+ function balanceOf(address _owner)
+ external
+ view
+ returns (uint256);
+
+ /// @notice Transfer ownership of an NFT -- THE CALLER IS RESPONSIBLE
+ /// TO CONFIRM THAT `_to` IS CAPABLE OF RECEIVING NFTS OR ELSE
+ /// THEY MAY BE PERMANENTLY LOST
+ /// @dev Throws unless `msg.sender` is the current owner, an authorized
+ /// operator, or the approved address for this NFT. Throws if `_from` is
+ /// not the current owner. Throws if `_to` is the zero address. Throws if
+ /// `_tokenId` is not a valid NFT.
+ /// @param _from The current owner of the NFT
+ /// @param _to The new owner
+ /// @param _tokenId The NFT to transfer
+ function transferFrom(
+ address _from,
+ address _to,
+ uint256 _tokenId
+ )
+ public;
+
+ /// @notice Find the owner of an NFT
+ /// @dev NFTs assigned to zero address are considered invalid, and queries
+ /// about them do throw.
+ /// @param _tokenId The identifier for an NFT
+ /// @return The address of the owner of the NFT
+ function ownerOf(uint256 _tokenId)
+ public
+ view
+ returns (address);
+
+ /// @notice Get the approved address for a single NFT
+ /// @dev Throws if `_tokenId` is not a valid NFT.
+ /// @param _tokenId The NFT to find the approved address for
+ /// @return The approved address for this NFT, or the zero address if there is none
+ function getApproved(uint256 _tokenId)
+ public
+ view
+ returns (address);
+
+ /// @notice Query if an address is an authorized operator for another address
+ /// @param _owner The address that owns the NFTs
+ /// @param _operator The address that acts on behalf of the owner
+ /// @return True if `_operator` is an approved operator for `_owner`, false otherwise
+ function isApprovedForAll(address _owner, address _operator)
+ public
+ view
+ returns (bool);
+}
diff --git a/contracts/tokens/contracts/tokens/ERC721Token/MintableERC721Token.sol b/contracts/tokens/contracts/tokens/ERC721Token/MintableERC721Token.sol
new file mode 100644
index 000000000..bc5cd2cc2
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/ERC721Token/MintableERC721Token.sol
@@ -0,0 +1,82 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "./ERC721Token.sol";
+
+
+contract MintableERC721Token is
+ ERC721Token
+{
+ /// @dev Function to mint a new token
+ /// Reverts if the given token ID already exists
+ /// @param _to Address of the beneficiary that will own the minted token
+ /// @param _tokenId ID of the token to be minted by the msg.sender
+ function _mint(address _to, uint256 _tokenId)
+ internal
+ {
+ require(
+ _to != address(0),
+ "ERC721_ZERO_TO_ADDRESS"
+ );
+
+ address owner = owners[_tokenId];
+ require(
+ owner == address(0),
+ "ERC721_OWNER_ALREADY_EXISTS"
+ );
+
+ owners[_tokenId] = _to;
+ balances[_to] = safeAdd(balances[_to], 1);
+
+ emit Transfer(
+ address(0),
+ _to,
+ _tokenId
+ );
+ }
+
+ /// @dev Function to burn a token
+ /// Reverts if the given token ID doesn't exist
+ /// @param _owner Owner of token with given token ID
+ /// @param _tokenId ID of the token to be burned by the msg.sender
+ function _burn(address _owner, uint256 _tokenId)
+ internal
+ {
+ require(
+ _owner != address(0),
+ "ERC721_ZERO_OWNER_ADDRESS"
+ );
+
+ address owner = owners[_tokenId];
+ require(
+ owner == _owner,
+ "ERC721_OWNER_MISMATCH"
+ );
+
+ owners[_tokenId] = address(0);
+ balances[_owner] = safeSub(balances[_owner], 1);
+
+ emit Transfer(
+ _owner,
+ address(0),
+ _tokenId
+ );
+ }
+}
diff --git a/contracts/tokens/contracts/tokens/EtherToken/IEtherToken.sol b/contracts/tokens/contracts/tokens/EtherToken/IEtherToken.sol
new file mode 100644
index 000000000..9e2e68766
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/EtherToken/IEtherToken.sol
@@ -0,0 +1,33 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "../ERC20Token/IERC20Token.sol";
+
+
+contract IEtherToken is
+ IERC20Token
+{
+ function deposit()
+ public
+ payable;
+
+ function withdraw(uint256 amount)
+ public;
+}
diff --git a/contracts/tokens/contracts/tokens/EtherToken/WETH9.sol b/contracts/tokens/contracts/tokens/EtherToken/WETH9.sol
new file mode 100644
index 000000000..17876b86d
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/EtherToken/WETH9.sol
@@ -0,0 +1,758 @@
+// Copyright (C) 2015, 2016, 2017 Dapphub
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+// solhint-disable
+pragma solidity ^0.4.18;
+
+
+contract WETH9 {
+ string public name = "Wrapped Ether";
+ string public symbol = "WETH";
+ uint8 public decimals = 18;
+
+ event Approval(address indexed _owner, address indexed _spender, uint _value);
+ event Transfer(address indexed _from, address indexed _to, uint _value);
+ event Deposit(address indexed _owner, uint _value);
+ event Withdrawal(address indexed _owner, uint _value);
+
+ mapping (address => uint) public balanceOf;
+ mapping (address => mapping (address => uint)) public allowance;
+
+ function() public payable {
+ deposit();
+ }
+ function deposit() public payable {
+ balanceOf[msg.sender] += msg.value;
+ Deposit(msg.sender, msg.value);
+ }
+ function withdraw(uint wad) public {
+ require(balanceOf[msg.sender] >= wad);
+ balanceOf[msg.sender] -= wad;
+ msg.sender.transfer(wad);
+ Withdrawal(msg.sender, wad);
+ }
+
+ function totalSupply() public view returns (uint) {
+ return this.balance;
+ }
+
+ function approve(address guy, uint wad) public returns (bool) {
+ allowance[msg.sender][guy] = wad;
+ Approval(msg.sender, guy, wad);
+ return true;
+ }
+
+ function transfer(address dst, uint wad) public returns (bool) {
+ return transferFrom(msg.sender, dst, wad);
+ }
+
+ function transferFrom(address src, address dst, uint wad)
+ public
+ returns (bool)
+ {
+ require(balanceOf[src] >= wad);
+
+ if (src != msg.sender && allowance[src][msg.sender] != uint(-1)) {
+ require(allowance[src][msg.sender] >= wad);
+ allowance[src][msg.sender] -= wad;
+ }
+
+ balanceOf[src] -= wad;
+ balanceOf[dst] += wad;
+
+ Transfer(src, dst, wad);
+
+ return true;
+ }
+}
+
+
+/*
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
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+ Developers that use the GNU GPL protect your rights with two steps:
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+
+ How to Apply These Terms to Your New Programs
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+free software which everyone can redistribute and change under these terms.
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
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+Also add information on how to contact you by electronic and paper mail.
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+ If the program does terminal interaction, make it output a short
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+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+
+*/
diff --git a/contracts/tokens/contracts/tokens/ZRXToken/ERC20Token_v1.sol b/contracts/tokens/contracts/tokens/ZRXToken/ERC20Token_v1.sol
new file mode 100644
index 000000000..4920c4aac
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/ZRXToken/ERC20Token_v1.sol
@@ -0,0 +1,44 @@
+pragma solidity ^0.4.11;
+
+import { Token_v1 as Token } from "./Token_v1.sol";
+
+contract ERC20Token_v1 is Token {
+
+ function transfer(address _to, uint _value) returns (bool) {
+ //Default assumes totalSupply can't be over max (2^256 - 1).
+ if (balances[msg.sender] >= _value && balances[_to] + _value >= balances[_to]) {
+ balances[msg.sender] -= _value;
+ balances[_to] += _value;
+ Transfer(msg.sender, _to, _value);
+ return true;
+ } else { return false; }
+ }
+
+ function transferFrom(address _from, address _to, uint _value) returns (bool) {
+ if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value >= balances[_to]) {
+ balances[_to] += _value;
+ balances[_from] -= _value;
+ allowed[_from][msg.sender] -= _value;
+ Transfer(_from, _to, _value);
+ return true;
+ } else { return false; }
+ }
+
+ function balanceOf(address _owner) constant returns (uint) {
+ return balances[_owner];
+ }
+
+ function approve(address _spender, uint _value) returns (bool) {
+ allowed[msg.sender][_spender] = _value;
+ Approval(msg.sender, _spender, _value);
+ return true;
+ }
+
+ function allowance(address _owner, address _spender) constant returns (uint) {
+ return allowed[_owner][_spender];
+ }
+
+ mapping (address => uint) balances;
+ mapping (address => mapping (address => uint)) allowed;
+ uint public totalSupply;
+}
diff --git a/contracts/tokens/contracts/tokens/ZRXToken/Token_v1.sol b/contracts/tokens/contracts/tokens/ZRXToken/Token_v1.sol
new file mode 100644
index 000000000..de619fb7e
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/ZRXToken/Token_v1.sol
@@ -0,0 +1,39 @@
+pragma solidity ^0.4.11;
+
+contract Token_v1 {
+
+ /// @return total amount of tokens
+ function totalSupply() constant returns (uint supply) {}
+
+ /// @param _owner The address from which the balance will be retrieved
+ /// @return The balance
+ function balanceOf(address _owner) constant returns (uint balance) {}
+
+ /// @notice send `_value` token to `_to` from `msg.sender`
+ /// @param _to The address of the recipient
+ /// @param _value The amount of token to be transferred
+ /// @return Whether the transfer was successful or not
+ function transfer(address _to, uint _value) returns (bool success) {}
+
+ /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
+ /// @param _from The address of the sender
+ /// @param _to The address of the recipient
+ /// @param _value The amount of token to be transferred
+ /// @return Whether the transfer was successful or not
+ function transferFrom(address _from, address _to, uint _value) returns (bool success) {}
+
+ /// @notice `msg.sender` approves `_addr` to spend `_value` tokens
+ /// @param _spender The address of the account able to transfer the tokens
+ /// @param _value The amount of wei to be approved for transfer
+ /// @return Whether the approval was successful or not
+ function approve(address _spender, uint _value) returns (bool success) {}
+
+ /// @param _owner The address of the account owning tokens
+ /// @param _spender The address of the account able to transfer the tokens
+ /// @return Amount of remaining tokens allowed to spent
+ function allowance(address _owner, address _spender) constant returns (uint remaining) {}
+
+ event Transfer(address indexed _from, address indexed _to, uint _value);
+ event Approval(address indexed _owner, address indexed _spender, uint _value);
+}
+
diff --git a/contracts/tokens/contracts/tokens/ZRXToken/UnlimitedAllowanceToken_v1.sol b/contracts/tokens/contracts/tokens/ZRXToken/UnlimitedAllowanceToken_v1.sol
new file mode 100644
index 000000000..bf1b0335a
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/ZRXToken/UnlimitedAllowanceToken_v1.sol
@@ -0,0 +1,52 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity ^0.4.11;
+
+import { ERC20Token_v1 as ERC20Token } from "./ERC20Token_v1.sol";
+
+contract UnlimitedAllowanceToken_v1 is ERC20Token {
+
+ uint constant MAX_UINT = 2**256 - 1;
+
+ /// @dev ERC20 transferFrom, modified such that an allowance of MAX_UINT represents an unlimited allowance.
+ /// @param _from Address to transfer from.
+ /// @param _to Address to transfer to.
+ /// @param _value Amount to transfer.
+ /// @return Success of transfer.
+ function transferFrom(address _from, address _to, uint _value)
+ public
+ returns (bool)
+ {
+ uint allowance = allowed[_from][msg.sender];
+ if (balances[_from] >= _value
+ && allowance >= _value
+ && balances[_to] + _value >= balances[_to]
+ ) {
+ balances[_to] += _value;
+ balances[_from] -= _value;
+ if (allowance < MAX_UINT) {
+ allowed[_from][msg.sender] -= _value;
+ }
+ Transfer(_from, _to, _value);
+ return true;
+ } else {
+ return false;
+ }
+ }
+}
diff --git a/contracts/tokens/contracts/tokens/ZRXToken/ZRXToken.sol b/contracts/tokens/contracts/tokens/ZRXToken/ZRXToken.sol
new file mode 100644
index 000000000..831e1822c
--- /dev/null
+++ b/contracts/tokens/contracts/tokens/ZRXToken/ZRXToken.sol
@@ -0,0 +1,41 @@
+/*
+
+ Copyright 2018 ZeroEx Intl.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+
+pragma solidity 0.4.11;
+
+// solhint-disable-next-line max-line-length
+import { UnlimitedAllowanceToken_v1 as UnlimitedAllowanceToken } from "./UnlimitedAllowanceToken_v1.sol";
+
+
+contract ZRXToken is
+ UnlimitedAllowanceToken
+{
+
+ // solhint-disable const-name-snakecase
+ uint8 constant public decimals = 18;
+ uint256 public totalSupply = 10**27; // 1 billion tokens, 18 decimal places
+ string constant public name = "0x Protocol Token";
+ string constant public symbol = "ZRX";
+ // solhint-enableconst-name-snakecase
+
+ function ZRXToken()
+ public
+ {
+ balances[msg.sender] = totalSupply;
+ }
+}
diff --git a/contracts/tokens/package.json b/contracts/tokens/package.json
new file mode 100644
index 000000000..0666ea89a
--- /dev/null
+++ b/contracts/tokens/package.json
@@ -0,0 +1,94 @@
+{
+ "private": true,
+ "name": "@0x/contracts-tokens",
+ "version": "1.0.0",
+ "engines": {
+ "node": ">=6.12"
+ },
+ "description": "Token contracts used by 0x protocol",
+ "main": "lib/src/index.js",
+ "directories": {
+ "test": "test"
+ },
+ "scripts": {
+ "build": "yarn pre_build && tsc -b",
+ "build:ci": "yarn build",
+ "pre_build": "run-s compile generate_contract_wrappers",
+ "test": "yarn run_mocha",
+ "rebuild_and_test": "run-s build test",
+ "test:coverage": "SOLIDITY_COVERAGE=true run-s build run_mocha coverage:report:text coverage:report:lcov",
+ "test:profiler": "SOLIDITY_PROFILER=true run-s build run_mocha profiler:report:html",
+ "test:trace": "SOLIDITY_REVERT_TRACE=true run-s build run_mocha",
+ "run_mocha":
+ "mocha --require source-map-support/register --require make-promises-safe 'lib/test/**/*.js' --timeout 100000 --bail --exit",
+ "compile": "sol-compiler --contracts-dir contracts",
+ "clean": "shx rm -rf lib generated-artifacts generated-wrappers",
+ "generate_contract_wrappers": "abi-gen --abis ${npm_package_config_abis} --template ../../node_modules/@0x/abi-gen-templates/contract.handlebars --partials '../../node_modules/@0x/abi-gen-templates/partials/**/*.handlebars' --output generated-wrappers --backend ethers",
+ "lint": "tslint --format stylish --project . --exclude ./generated-wrappers/**/* --exclude ./generated-artifacts/**/* --exclude **/lib/**/* && yarn lint-contracts",
+ "coverage:report:text": "istanbul report text",
+ "coverage:report:html": "istanbul report html && open coverage/index.html",
+ "profiler:report:html": "istanbul report html && open coverage/index.html",
+ "coverage:report:lcov": "istanbul report lcov",
+ "test:circleci": "yarn test",
+ "lint-contracts": "solhint contracts/**/**/**/**/*.sol"
+ },
+ "config": {
+ "abis": "generated-artifacts/@(DummyERC20Token|DummyMultipleReturnERC20Token|DummyNoReturnERC20Token|DummyERC721Receiver|InvalidERC721Receiver|DummyERC721Token|ReentrantERC20Token|ERC20Token|IERC20Token|MintableERC20Token|UnlimitedAllowanceERC20Token|ERC721Token|IERC721Receiver|IERC721Token|MintableERC721Token|IEtherToken|WETH9|ERC20Token_v1|Token_v1|UnlimitedAllowanceToken_v1|ZRXToken).json"
+ },
+ "repository": {
+ "type": "git",
+ "url": "https://github.com/0xProject/0x-monorepo.git"
+ },
+ "license": "Apache-2.0",
+ "bugs": {
+ "url": "https://github.com/0xProject/0x-monorepo/issues"
+ },
+ "homepage": "https://github.com/0xProject/0x-monorepo/contracts/tokens/README.md",
+ "devDependencies": {
+ "@0x/contracts-test-utils": "^1.0.0",
+ "@0x/abi-gen": "^1.0.17",
+ "@0x/dev-utils": "^1.0.19",
+ "@0x/sol-compiler": "^1.1.14",
+ "@0x/sol-cov": "^2.1.14",
+ "@0x/subproviders": "^2.1.6",
+ "@0x/tslint-config": "^1.0.10",
+ "@types/bn.js": "^4.11.0",
+ "@types/lodash": "4.14.104",
+ "@types/node": "*",
+ "@types/yargs": "^10.0.0",
+ "chai": "^4.0.1",
+ "chai-as-promised": "^7.1.0",
+ "chai-bignumber": "^2.0.1",
+ "dirty-chai": "^2.0.1",
+ "make-promises-safe": "^1.1.0",
+ "ethereumjs-abi": "0.6.5",
+ "mocha": "^4.1.0",
+ "npm-run-all": "^4.1.2",
+ "shx": "^0.2.2",
+ "solc": "^0.4.24",
+ "solhint": "^1.2.1",
+ "tslint": "5.11.0",
+ "typescript": "3.0.1",
+ "yargs": "^10.0.3"
+ },
+ "dependencies": {
+ "@0x/base-contract": "^3.0.8",
+ "@0x/order-utils": "^3.0.4",
+ "@0x/contracts-multisig": "^1.0.0",
+ "@0x/contracts-utils": "^1.0.0",
+ "@0x/contracts-libs": "^1.0.0",
+ "@0x/contracts-interfaces": "^1.0.0",
+ "@0x/types": "^1.3.0",
+ "@0x/typescript-typings": "^3.0.4",
+ "@0x/utils": "^2.0.6",
+ "@0x/web3-wrapper": "^3.1.6",
+ "@types/js-combinatorics": "^0.5.29",
+ "bn.js": "^4.11.8",
+ "ethereum-types": "^1.1.2",
+ "ethereumjs-util": "^5.1.1",
+ "lodash": "^4.17.5"
+ },
+ "publishConfig": {
+ "access": "public"
+ }
+}
diff --git a/contracts/tokens/src/artifacts/index.ts b/contracts/tokens/src/artifacts/index.ts
new file mode 100644
index 000000000..63b808748
--- /dev/null
+++ b/contracts/tokens/src/artifacts/index.ts
@@ -0,0 +1,49 @@
+import { ContractArtifact } from 'ethereum-types';
+
+import * as DummyERC20Token from '../../generated-artifacts/DummyERC20Token.json';
+import * as DummyERC721Receiver from '../../generated-artifacts/DummyERC721Receiver.json';
+import * as DummyERC721Token from '../../generated-artifacts/DummyERC721Token.json';
+import * as DummyMultipleReturnERC20Token from '../../generated-artifacts/DummyMultipleReturnERC20Token.json';
+import * as DummyNoReturnERC20Token from '../../generated-artifacts/DummyNoReturnERC20Token.json';
+import * as ERC20Token from '../../generated-artifacts/ERC20Token.json';
+import * as ERC20Token_v1 from '../../generated-artifacts/ERC20Token_v1.json';
+import * as ERC721Token from '../../generated-artifacts/ERC721Token.json';
+import * as IERC20Token from '../../generated-artifacts/IERC20Token.json';
+import * as IERC721Receiver from '../../generated-artifacts/IERC721Receiver.json';
+import * as IERC721Token from '../../generated-artifacts/IERC721Token.json';
+import * as IEtherToken from '../../generated-artifacts/IEtherToken.json';
+import * as InvalidERC721Receiver from '../../generated-artifacts/InvalidERC721Receiver.json';
+import * as MintableERC20Token from '../../generated-artifacts/MintableERC20Token.json';
+import * as MintableERC721Token from '../../generated-artifacts/MintableERC721Token.json';
+import * as ReentrantERC20Token from '../../generated-artifacts/ReentrantERC20Token.json';
+import * as Token_v1 from '../../generated-artifacts/Token_v1.json';
+import * as UnlimitedAllowanceERC20Token from '../../generated-artifacts/UnlimitedAllowanceERC20Token.json';
+import * as UnlimitedAllowanceToken_v1 from '../../generated-artifacts/UnlimitedAllowanceToken_v1.json';
+import * as WETH9 from '../../generated-artifacts/WETH9.json';
+import * as ZRXToken from '../../generated-artifacts/ZRXToken.json';
+
+export const artifacts = {
+ DummyERC20Token: DummyERC20Token as ContractArtifact,
+ DummyMultipleReturnERC20Token: DummyMultipleReturnERC20Token as ContractArtifact,
+ DummyNoReturnERC20Token: DummyNoReturnERC20Token as ContractArtifact,
+ DummyERC721Receiver: DummyERC721Receiver as ContractArtifact,
+ InvalidERC721Receiver: InvalidERC721Receiver as ContractArtifact,
+ DummyERC721Token: DummyERC721Token as ContractArtifact,
+ ReentrantERC20Token: ReentrantERC20Token as ContractArtifact,
+ ERC20Token: ERC20Token as ContractArtifact,
+ IERC20Token: IERC20Token as ContractArtifact,
+ MintableERC20Token: MintableERC20Token as ContractArtifact,
+ UnlimitedAllowanceERC20Token: UnlimitedAllowanceERC20Token as ContractArtifact,
+ ERC721Token: ERC721Token as ContractArtifact,
+ IERC721Receiver: IERC721Receiver as ContractArtifact,
+ IERC721Token: IERC721Token as ContractArtifact,
+ MintableERC721Token: MintableERC721Token as ContractArtifact,
+ IEtherToken: IEtherToken as ContractArtifact,
+ WETH9: WETH9 as ContractArtifact,
+ ERC20Token_v1: ERC20Token_v1 as ContractArtifact,
+ Token_v1: Token_v1 as ContractArtifact,
+ UnlimitedAllowanceToken_v1: UnlimitedAllowanceToken_v1 as ContractArtifact,
+ // Note(albrow): "as any" hack still required here because ZRXToken does not
+ // conform to the v2 artifact type.
+ ZRXToken: (ZRXToken as any) as ContractArtifact,
+};
diff --git a/contracts/tokens/src/index.ts b/contracts/tokens/src/index.ts
new file mode 100644
index 000000000..91dd7e0e3
--- /dev/null
+++ b/contracts/tokens/src/index.ts
@@ -0,0 +1,2 @@
+export * from './wrappers';
+export * from './artifacts';
diff --git a/contracts/tokens/src/wrappers/index.ts b/contracts/tokens/src/wrappers/index.ts
new file mode 100644
index 000000000..98bf26657
--- /dev/null
+++ b/contracts/tokens/src/wrappers/index.ts
@@ -0,0 +1,21 @@
+export * from '../../generated-wrappers/zrx_token';
+export * from '../../generated-wrappers/weth9';
+export * from '../../generated-wrappers/unlimitedallowancetoken_v1';
+export * from '../../generated-wrappers/unlimited_allowance_erc20_token';
+export * from '../../generated-wrappers/token_v1';
+export * from '../../generated-wrappers/reentrant_erc20_token';
+export * from '../../generated-wrappers/mintable_erc721_token';
+export * from '../../generated-wrappers/mintable_erc20_token';
+export * from '../../generated-wrappers/invalid_erc721_receiver';
+export * from '../../generated-wrappers/i_ether_token';
+export * from '../../generated-wrappers/i_erc721_token';
+export * from '../../generated-wrappers/i_erc721_receiver';
+export * from '../../generated-wrappers/i_erc20_token';
+export * from '../../generated-wrappers/erc721_token';
+export * from '../../generated-wrappers/erc20token_v1';
+export * from '../../generated-wrappers/erc20_token';
+export * from '../../generated-wrappers/dummy_no_return_erc20_token';
+export * from '../../generated-wrappers/dummy_multiple_return_erc20_token';
+export * from '../../generated-wrappers/dummy_erc721_token';
+export * from '../../generated-wrappers/dummy_erc721_receiver';
+export * from '../../generated-wrappers/dummy_erc20_token';
diff --git a/contracts/tokens/test/erc721_token.ts b/contracts/tokens/test/erc721_token.ts
new file mode 100644
index 000000000..13332cd35
--- /dev/null
+++ b/contracts/tokens/test/erc721_token.ts
@@ -0,0 +1,282 @@
+import {
+ chaiSetup,
+ constants,
+ expectTransactionFailedAsync,
+ expectTransactionFailedWithoutReasonAsync,
+ LogDecoder,
+ provider,
+ txDefaults,
+ web3Wrapper,
+} from '@0x/contracts-test-utils';
+import { BlockchainLifecycle } from '@0x/dev-utils';
+import { RevertReason } from '@0x/types';
+import { BigNumber } from '@0x/utils';
+import * as chai from 'chai';
+import { LogWithDecodedArgs } from 'ethereum-types';
+
+import {
+ artifacts,
+ DummyERC721ReceiverContract,
+ DummyERC721ReceiverTokenReceivedEventArgs,
+ DummyERC721TokenContract,
+ DummyERC721TokenTransferEventArgs,
+ InvalidERC721ReceiverContract,
+} from '../src';
+
+chaiSetup.configure();
+const expect = chai.expect;
+const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
+// tslint:disable:no-unnecessary-type-assertion
+describe('ERC721Token', () => {
+ let owner: string;
+ let spender: string;
+ let token: DummyERC721TokenContract;
+ let erc721Receiver: DummyERC721ReceiverContract;
+ let logDecoder: LogDecoder;
+ const tokenId = new BigNumber(1);
+ before(async () => {
+ await blockchainLifecycle.startAsync();
+ });
+ after(async () => {
+ await blockchainLifecycle.revertAsync();
+ });
+ before(async () => {
+ const accounts = await web3Wrapper.getAvailableAddressesAsync();
+ owner = accounts[0];
+ spender = accounts[1];
+ token = await DummyERC721TokenContract.deployFrom0xArtifactAsync(
+ artifacts.DummyERC721Token,
+ provider,
+ txDefaults,
+ constants.DUMMY_TOKEN_NAME,
+ constants.DUMMY_TOKEN_SYMBOL,
+ );
+ erc721Receiver = await DummyERC721ReceiverContract.deployFrom0xArtifactAsync(
+ artifacts.DummyERC721Receiver,
+ provider,
+ txDefaults,
+ );
+ logDecoder = new LogDecoder(web3Wrapper, artifacts);
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await token.mint.sendTransactionAsync(owner, tokenId, { from: owner }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ });
+ beforeEach(async () => {
+ await blockchainLifecycle.startAsync();
+ });
+ afterEach(async () => {
+ await blockchainLifecycle.revertAsync();
+ });
+
+ describe('transferFrom', () => {
+ it('should revert if the tokenId is not owner', async () => {
+ const from = owner;
+ const to = erc721Receiver.address;
+ const unownedTokenId = new BigNumber(2);
+ await expectTransactionFailedAsync(
+ token.transferFrom.sendTransactionAsync(from, to, unownedTokenId),
+ RevertReason.Erc721ZeroOwner,
+ );
+ });
+ it('should revert if transferring to a null address', async () => {
+ const from = owner;
+ const to = constants.NULL_ADDRESS;
+ await expectTransactionFailedAsync(
+ token.transferFrom.sendTransactionAsync(from, to, tokenId),
+ RevertReason.Erc721ZeroToAddress,
+ );
+ });
+ it('should revert if the from address does not own the token', async () => {
+ const from = spender;
+ const to = erc721Receiver.address;
+ await expectTransactionFailedAsync(
+ token.transferFrom.sendTransactionAsync(from, to, tokenId),
+ RevertReason.Erc721OwnerMismatch,
+ );
+ });
+ it('should revert if spender does not own the token, is not approved, and is not approved for all', async () => {
+ const from = owner;
+ const to = erc721Receiver.address;
+ await expectTransactionFailedAsync(
+ token.transferFrom.sendTransactionAsync(from, to, tokenId, { from: spender }),
+ RevertReason.Erc721InvalidSpender,
+ );
+ });
+ it('should transfer the token if called by owner', async () => {
+ const from = owner;
+ const to = erc721Receiver.address;
+ const txReceipt = await logDecoder.getTxWithDecodedLogsAsync(
+ await token.transferFrom.sendTransactionAsync(from, to, tokenId),
+ );
+ const newOwner = await token.ownerOf.callAsync(tokenId);
+ expect(newOwner).to.be.equal(to);
+ const log = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>;
+ expect(log.args._from).to.be.equal(from);
+ expect(log.args._to).to.be.equal(to);
+ expect(log.args._tokenId).to.be.bignumber.equal(tokenId);
+ });
+ it('should transfer the token if spender is approved for all', async () => {
+ const isApproved = true;
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await token.setApprovalForAll.sendTransactionAsync(spender, isApproved),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+
+ const from = owner;
+ const to = erc721Receiver.address;
+ const txReceipt = await logDecoder.getTxWithDecodedLogsAsync(
+ await token.transferFrom.sendTransactionAsync(from, to, tokenId),
+ );
+ const newOwner = await token.ownerOf.callAsync(tokenId);
+ expect(newOwner).to.be.equal(to);
+ const log = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>;
+ expect(log.args._from).to.be.equal(from);
+ expect(log.args._to).to.be.equal(to);
+ expect(log.args._tokenId).to.be.bignumber.equal(tokenId);
+ });
+ it('should transfer the token if spender is individually approved', async () => {
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await token.approve.sendTransactionAsync(spender, tokenId),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+
+ const from = owner;
+ const to = erc721Receiver.address;
+ const txReceipt = await logDecoder.getTxWithDecodedLogsAsync(
+ await token.transferFrom.sendTransactionAsync(from, to, tokenId),
+ );
+ const newOwner = await token.ownerOf.callAsync(tokenId);
+ expect(newOwner).to.be.equal(to);
+
+ const approvedAddress = await token.getApproved.callAsync(tokenId);
+ expect(approvedAddress).to.be.equal(constants.NULL_ADDRESS);
+ const log = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>;
+ expect(log.args._from).to.be.equal(from);
+ expect(log.args._to).to.be.equal(to);
+ expect(log.args._tokenId).to.be.bignumber.equal(tokenId);
+ });
+ });
+ describe('safeTransferFrom without data', () => {
+ it('should transfer token to a non-contract address if called by owner', async () => {
+ const from = owner;
+ const to = spender;
+ const txReceipt = await logDecoder.getTxWithDecodedLogsAsync(
+ await token.safeTransferFrom1.sendTransactionAsync(from, to, tokenId),
+ );
+ const newOwner = await token.ownerOf.callAsync(tokenId);
+ expect(newOwner).to.be.equal(to);
+ const log = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>;
+ expect(log.args._from).to.be.equal(from);
+ expect(log.args._to).to.be.equal(to);
+ expect(log.args._tokenId).to.be.bignumber.equal(tokenId);
+ });
+ it('should revert if transferring to a contract address without onERC721Received', async () => {
+ const contract = await DummyERC721TokenContract.deployFrom0xArtifactAsync(
+ artifacts.DummyERC721Token,
+ provider,
+ txDefaults,
+ constants.DUMMY_TOKEN_NAME,
+ constants.DUMMY_TOKEN_SYMBOL,
+ );
+ const from = owner;
+ const to = contract.address;
+ await expectTransactionFailedWithoutReasonAsync(
+ token.safeTransferFrom1.sendTransactionAsync(from, to, tokenId),
+ );
+ });
+ it('should revert if onERC721Received does not return the correct value', async () => {
+ const invalidErc721Receiver = await InvalidERC721ReceiverContract.deployFrom0xArtifactAsync(
+ artifacts.InvalidERC721Receiver,
+ provider,
+ txDefaults,
+ );
+ const from = owner;
+ const to = invalidErc721Receiver.address;
+ await expectTransactionFailedAsync(
+ token.safeTransferFrom1.sendTransactionAsync(from, to, tokenId),
+ RevertReason.Erc721InvalidSelector,
+ );
+ });
+ it('should transfer to contract and call onERC721Received with correct return value', async () => {
+ const from = owner;
+ const to = erc721Receiver.address;
+ const txReceipt = await logDecoder.getTxWithDecodedLogsAsync(
+ await token.safeTransferFrom1.sendTransactionAsync(from, to, tokenId),
+ );
+ const newOwner = await token.ownerOf.callAsync(tokenId);
+ expect(newOwner).to.be.equal(to);
+ const transferLog = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>;
+ const receiverLog = txReceipt.logs[1] as LogWithDecodedArgs<DummyERC721ReceiverTokenReceivedEventArgs>;
+ expect(transferLog.args._from).to.be.equal(from);
+ expect(transferLog.args._to).to.be.equal(to);
+ expect(transferLog.args._tokenId).to.be.bignumber.equal(tokenId);
+ expect(receiverLog.args.operator).to.be.equal(owner);
+ expect(receiverLog.args.from).to.be.equal(from);
+ expect(receiverLog.args.tokenId).to.be.bignumber.equal(tokenId);
+ expect(receiverLog.args.data).to.be.equal(constants.NULL_BYTES);
+ });
+ });
+ describe('safeTransferFrom with data', () => {
+ const data = '0x0102030405060708090a0b0c0d0e0f';
+ it('should transfer token to a non-contract address if called by owner', async () => {
+ const from = owner;
+ const to = spender;
+ const txReceipt = await logDecoder.getTxWithDecodedLogsAsync(
+ await token.safeTransferFrom2.sendTransactionAsync(from, to, tokenId, data),
+ );
+ const newOwner = await token.ownerOf.callAsync(tokenId);
+ expect(newOwner).to.be.equal(to);
+ const log = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>;
+ expect(log.args._from).to.be.equal(from);
+ expect(log.args._to).to.be.equal(to);
+ expect(log.args._tokenId).to.be.bignumber.equal(tokenId);
+ });
+ it('should revert if transferring to a contract address without onERC721Received', async () => {
+ const contract = await DummyERC721TokenContract.deployFrom0xArtifactAsync(
+ artifacts.DummyERC721Token,
+ provider,
+ txDefaults,
+ constants.DUMMY_TOKEN_NAME,
+ constants.DUMMY_TOKEN_SYMBOL,
+ );
+ const from = owner;
+ const to = contract.address;
+ await expectTransactionFailedWithoutReasonAsync(
+ token.safeTransferFrom2.sendTransactionAsync(from, to, tokenId, data),
+ );
+ });
+ it('should revert if onERC721Received does not return the correct value', async () => {
+ const invalidErc721Receiver = await InvalidERC721ReceiverContract.deployFrom0xArtifactAsync(
+ artifacts.InvalidERC721Receiver,
+ provider,
+ txDefaults,
+ );
+ const from = owner;
+ const to = invalidErc721Receiver.address;
+ await expectTransactionFailedAsync(
+ token.safeTransferFrom2.sendTransactionAsync(from, to, tokenId, data),
+ RevertReason.Erc721InvalidSelector,
+ );
+ });
+ it('should transfer to contract and call onERC721Received with correct return value', async () => {
+ const from = owner;
+ const to = erc721Receiver.address;
+ const txReceipt = await logDecoder.getTxWithDecodedLogsAsync(
+ await token.safeTransferFrom2.sendTransactionAsync(from, to, tokenId, data),
+ );
+ const newOwner = await token.ownerOf.callAsync(tokenId);
+ expect(newOwner).to.be.equal(to);
+ const transferLog = txReceipt.logs[0] as LogWithDecodedArgs<DummyERC721TokenTransferEventArgs>;
+ const receiverLog = txReceipt.logs[1] as LogWithDecodedArgs<DummyERC721ReceiverTokenReceivedEventArgs>;
+ expect(transferLog.args._from).to.be.equal(from);
+ expect(transferLog.args._to).to.be.equal(to);
+ expect(transferLog.args._tokenId).to.be.bignumber.equal(tokenId);
+ expect(receiverLog.args.operator).to.be.equal(owner);
+ expect(receiverLog.args.from).to.be.equal(from);
+ expect(receiverLog.args.tokenId).to.be.bignumber.equal(tokenId);
+ expect(receiverLog.args.data).to.be.equal(data);
+ });
+ });
+});
+// tslint:enable:no-unnecessary-type-assertion
diff --git a/contracts/tokens/test/global_hooks.ts b/contracts/tokens/test/global_hooks.ts
new file mode 100644
index 000000000..f8ace376a
--- /dev/null
+++ b/contracts/tokens/test/global_hooks.ts
@@ -0,0 +1,17 @@
+import { env, EnvVars } from '@0x/dev-utils';
+
+import { coverage, profiler, provider } from '@0x/contracts-test-utils';
+before('start web3 provider', () => {
+ provider.start();
+});
+after('generate coverage report', async () => {
+ if (env.parseBoolean(EnvVars.SolidityCoverage)) {
+ const coverageSubprovider = coverage.getCoverageSubproviderSingleton();
+ await coverageSubprovider.writeCoverageAsync();
+ }
+ if (env.parseBoolean(EnvVars.SolidityProfiler)) {
+ const profilerSubprovider = profiler.getProfilerSubproviderSingleton();
+ await profilerSubprovider.writeProfilerOutputAsync();
+ }
+ provider.stop();
+});
diff --git a/contracts/tokens/test/unlimited_allowance_token.ts b/contracts/tokens/test/unlimited_allowance_token.ts
new file mode 100644
index 000000000..6d5a29b23
--- /dev/null
+++ b/contracts/tokens/test/unlimited_allowance_token.ts
@@ -0,0 +1,194 @@
+import {
+ chaiSetup,
+ constants,
+ expectContractCallFailedAsync,
+ provider,
+ txDefaults,
+ web3Wrapper,
+} from '@0x/contracts-test-utils';
+import { BlockchainLifecycle } from '@0x/dev-utils';
+import { RevertReason } from '@0x/types';
+import { BigNumber } from '@0x/utils';
+import * as chai from 'chai';
+
+import { artifacts, DummyERC20TokenContract } from '../src';
+
+chaiSetup.configure();
+const expect = chai.expect;
+const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
+
+describe('UnlimitedAllowanceToken', () => {
+ let owner: string;
+ let spender: string;
+ const MAX_MINT_VALUE = new BigNumber(10000000000000000000000);
+ let token: DummyERC20TokenContract;
+
+ before(async () => {
+ await blockchainLifecycle.startAsync();
+ });
+ after(async () => {
+ await blockchainLifecycle.revertAsync();
+ });
+ before(async () => {
+ const accounts = await web3Wrapper.getAvailableAddressesAsync();
+ owner = accounts[0];
+ spender = accounts[1];
+ token = await DummyERC20TokenContract.deployFrom0xArtifactAsync(
+ artifacts.DummyERC20Token,
+ provider,
+ txDefaults,
+ constants.DUMMY_TOKEN_NAME,
+ constants.DUMMY_TOKEN_SYMBOL,
+ constants.DUMMY_TOKEN_DECIMALS,
+ constants.DUMMY_TOKEN_TOTAL_SUPPLY,
+ );
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await token.mint.sendTransactionAsync(MAX_MINT_VALUE, { from: owner }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ });
+ beforeEach(async () => {
+ await blockchainLifecycle.startAsync();
+ });
+ afterEach(async () => {
+ await blockchainLifecycle.revertAsync();
+ });
+ describe('transfer', () => {
+ it('should throw if owner has insufficient balance', async () => {
+ const ownerBalance = await token.balanceOf.callAsync(owner);
+ const amountToTransfer = ownerBalance.plus(1);
+ return expectContractCallFailedAsync(
+ token.transfer.callAsync(spender, amountToTransfer, { from: owner }),
+ RevertReason.Erc20InsufficientBalance,
+ );
+ });
+
+ it('should transfer balance from sender to receiver', async () => {
+ const receiver = spender;
+ const initOwnerBalance = await token.balanceOf.callAsync(owner);
+ const amountToTransfer = new BigNumber(1);
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await token.transfer.sendTransactionAsync(receiver, amountToTransfer, { from: owner }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ const finalOwnerBalance = await token.balanceOf.callAsync(owner);
+ const finalReceiverBalance = await token.balanceOf.callAsync(receiver);
+
+ const expectedFinalOwnerBalance = initOwnerBalance.minus(amountToTransfer);
+ const expectedFinalReceiverBalance = amountToTransfer;
+ expect(finalOwnerBalance).to.be.bignumber.equal(expectedFinalOwnerBalance);
+ expect(finalReceiverBalance).to.be.bignumber.equal(expectedFinalReceiverBalance);
+ });
+
+ it('should return true on a 0 value transfer', async () => {
+ const didReturnTrue = await token.transfer.callAsync(spender, new BigNumber(0), {
+ from: owner,
+ });
+ expect(didReturnTrue).to.be.true();
+ });
+ });
+
+ describe('transferFrom', () => {
+ it('should throw if owner has insufficient balance', async () => {
+ const ownerBalance = await token.balanceOf.callAsync(owner);
+ const amountToTransfer = ownerBalance.plus(1);
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await token.approve.sendTransactionAsync(spender, amountToTransfer, { from: owner }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ return expectContractCallFailedAsync(
+ token.transferFrom.callAsync(owner, spender, amountToTransfer, {
+ from: spender,
+ }),
+ RevertReason.Erc20InsufficientBalance,
+ );
+ });
+
+ it('should throw if spender has insufficient allowance', async () => {
+ const ownerBalance = await token.balanceOf.callAsync(owner);
+ const amountToTransfer = ownerBalance;
+
+ const spenderAllowance = await token.allowance.callAsync(owner, spender);
+ const isSpenderAllowanceInsufficient = spenderAllowance.cmp(amountToTransfer) < 0;
+ expect(isSpenderAllowanceInsufficient).to.be.true();
+
+ return expectContractCallFailedAsync(
+ token.transferFrom.callAsync(owner, spender, amountToTransfer, {
+ from: spender,
+ }),
+ RevertReason.Erc20InsufficientAllowance,
+ );
+ });
+
+ it('should return true on a 0 value transfer', async () => {
+ const amountToTransfer = new BigNumber(0);
+ const didReturnTrue = await token.transferFrom.callAsync(owner, spender, amountToTransfer, {
+ from: spender,
+ });
+ expect(didReturnTrue).to.be.true();
+ });
+
+ it('should not modify spender allowance if spender allowance is 2^256 - 1', async () => {
+ const initOwnerBalance = await token.balanceOf.callAsync(owner);
+ const amountToTransfer = initOwnerBalance;
+ const initSpenderAllowance = constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS;
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await token.approve.sendTransactionAsync(spender, initSpenderAllowance, { from: owner }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await token.transferFrom.sendTransactionAsync(owner, spender, amountToTransfer, {
+ from: spender,
+ gas: constants.MAX_TOKEN_TRANSFERFROM_GAS,
+ }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+
+ const newSpenderAllowance = await token.allowance.callAsync(owner, spender);
+ expect(initSpenderAllowance).to.be.bignumber.equal(newSpenderAllowance);
+ });
+
+ it('should transfer the correct balances if spender has sufficient allowance', async () => {
+ const initOwnerBalance = await token.balanceOf.callAsync(owner);
+ const amountToTransfer = initOwnerBalance;
+ const initSpenderAllowance = initOwnerBalance;
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await token.approve.sendTransactionAsync(spender, initSpenderAllowance, { from: owner }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await token.transferFrom.sendTransactionAsync(owner, spender, amountToTransfer, {
+ from: spender,
+ gas: constants.MAX_TOKEN_TRANSFERFROM_GAS,
+ }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+
+ const newOwnerBalance = await token.balanceOf.callAsync(owner);
+ const newSpenderBalance = await token.balanceOf.callAsync(spender);
+
+ expect(newOwnerBalance).to.be.bignumber.equal(0);
+ expect(newSpenderBalance).to.be.bignumber.equal(initOwnerBalance);
+ });
+
+ it('should modify allowance if spender has sufficient allowance less than 2^256 - 1', async () => {
+ const initOwnerBalance = await token.balanceOf.callAsync(owner);
+ const amountToTransfer = initOwnerBalance;
+ const initSpenderAllowance = initOwnerBalance;
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await token.approve.sendTransactionAsync(spender, initSpenderAllowance, { from: owner }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await token.transferFrom.sendTransactionAsync(owner, spender, amountToTransfer, {
+ from: spender,
+ gas: constants.MAX_TOKEN_TRANSFERFROM_GAS,
+ }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+
+ const newSpenderAllowance = await token.allowance.callAsync(owner, spender);
+ expect(newSpenderAllowance).to.be.bignumber.equal(0);
+ });
+ });
+});
diff --git a/contracts/tokens/test/weth9.ts b/contracts/tokens/test/weth9.ts
new file mode 100644
index 000000000..6a3948e2c
--- /dev/null
+++ b/contracts/tokens/test/weth9.ts
@@ -0,0 +1,142 @@
+import {
+ chaiSetup,
+ constants,
+ expectInsufficientFundsAsync,
+ expectTransactionFailedWithoutReasonAsync,
+ provider,
+ txDefaults,
+ web3Wrapper,
+} from '@0x/contracts-test-utils';
+import { BlockchainLifecycle } from '@0x/dev-utils';
+import { BigNumber } from '@0x/utils';
+import { Web3Wrapper } from '@0x/web3-wrapper';
+import * as chai from 'chai';
+
+import { artifacts, WETH9Contract } from '../src';
+
+chaiSetup.configure();
+const expect = chai.expect;
+const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
+
+describe('EtherToken', () => {
+ let account: string;
+ const gasPrice = Web3Wrapper.toBaseUnitAmount(new BigNumber(20), 9);
+ let etherToken: WETH9Contract;
+
+ before(async () => {
+ await blockchainLifecycle.startAsync();
+ });
+ after(async () => {
+ await blockchainLifecycle.revertAsync();
+ });
+ before(async () => {
+ const accounts = await web3Wrapper.getAvailableAddressesAsync();
+ account = accounts[0];
+
+ etherToken = await WETH9Contract.deployFrom0xArtifactAsync(artifacts.WETH9, provider, {
+ gasPrice,
+ ...txDefaults,
+ });
+ });
+ beforeEach(async () => {
+ await blockchainLifecycle.startAsync();
+ });
+ afterEach(async () => {
+ await blockchainLifecycle.revertAsync();
+ });
+ describe('deposit', () => {
+ it('should throw if caller attempts to deposit more Ether than caller balance', async () => {
+ const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+ const ethToDeposit = initEthBalance.plus(1);
+
+ return expectInsufficientFundsAsync(etherToken.deposit.sendTransactionAsync({ value: ethToDeposit }));
+ });
+
+ it('should convert deposited Ether to wrapped Ether tokens', async () => {
+ const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+ const initEthTokenBalance = await etherToken.balanceOf.callAsync(account);
+
+ const ethToDeposit = new BigNumber(Web3Wrapper.toWei(new BigNumber(1)));
+
+ const txHash = await etherToken.deposit.sendTransactionAsync({ value: ethToDeposit });
+ const receipt = await web3Wrapper.awaitTransactionSuccessAsync(
+ txHash,
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+
+ const ethSpentOnGas = gasPrice.times(receipt.gasUsed);
+ const finalEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+ const finalEthTokenBalance = await etherToken.balanceOf.callAsync(account);
+
+ expect(finalEthBalance).to.be.bignumber.equal(initEthBalance.minus(ethToDeposit.plus(ethSpentOnGas)));
+ expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.plus(ethToDeposit));
+ });
+ });
+
+ describe('withdraw', () => {
+ it('should throw if caller attempts to withdraw greater than caller balance', async () => {
+ const initEthTokenBalance = await etherToken.balanceOf.callAsync(account);
+ const ethTokensToWithdraw = initEthTokenBalance.plus(1);
+
+ return expectTransactionFailedWithoutReasonAsync(
+ etherToken.withdraw.sendTransactionAsync(ethTokensToWithdraw),
+ );
+ });
+
+ it('should convert ether tokens to ether with sufficient balance', async () => {
+ const ethToDeposit = new BigNumber(Web3Wrapper.toWei(new BigNumber(1)));
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await etherToken.deposit.sendTransactionAsync({ value: ethToDeposit }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ const initEthTokenBalance = await etherToken.balanceOf.callAsync(account);
+ const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+ const ethTokensToWithdraw = initEthTokenBalance;
+ expect(ethTokensToWithdraw).to.not.be.bignumber.equal(0);
+ const txHash = await etherToken.withdraw.sendTransactionAsync(ethTokensToWithdraw, {
+ gas: constants.MAX_ETHERTOKEN_WITHDRAW_GAS,
+ });
+ const receipt = await web3Wrapper.awaitTransactionSuccessAsync(
+ txHash,
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+
+ const ethSpentOnGas = gasPrice.times(receipt.gasUsed);
+ const finalEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+ const finalEthTokenBalance = await etherToken.balanceOf.callAsync(account);
+
+ expect(finalEthBalance).to.be.bignumber.equal(
+ initEthBalance.plus(ethTokensToWithdraw.minus(ethSpentOnGas)),
+ );
+ expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.minus(ethTokensToWithdraw));
+ });
+ });
+
+ describe('fallback', () => {
+ it('should convert sent ether to ether tokens', async () => {
+ const initEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+ const initEthTokenBalance = await etherToken.balanceOf.callAsync(account);
+
+ const ethToDeposit = Web3Wrapper.toBaseUnitAmount(new BigNumber(1), 18);
+
+ const txHash = await web3Wrapper.sendTransactionAsync({
+ from: account,
+ to: etherToken.address,
+ value: ethToDeposit,
+ gasPrice,
+ });
+
+ const receipt = await web3Wrapper.awaitTransactionSuccessAsync(
+ txHash,
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+
+ const ethSpentOnGas = gasPrice.times(receipt.gasUsed);
+ const finalEthBalance = await web3Wrapper.getBalanceInWeiAsync(account);
+ const finalEthTokenBalance = await etherToken.balanceOf.callAsync(account);
+
+ expect(finalEthBalance).to.be.bignumber.equal(initEthBalance.minus(ethToDeposit.plus(ethSpentOnGas)));
+ expect(finalEthTokenBalance).to.be.bignumber.equal(initEthTokenBalance.plus(ethToDeposit));
+ });
+ });
+});
diff --git a/contracts/tokens/test/zrx_token.ts b/contracts/tokens/test/zrx_token.ts
new file mode 100644
index 000000000..5dc8447f6
--- /dev/null
+++ b/contracts/tokens/test/zrx_token.ts
@@ -0,0 +1,203 @@
+import { chaiSetup, constants, provider, txDefaults, web3Wrapper } from '@0x/contracts-test-utils';
+import { BlockchainLifecycle } from '@0x/dev-utils';
+import { BigNumber } from '@0x/utils';
+import { Web3Wrapper } from '@0x/web3-wrapper';
+import * as chai from 'chai';
+
+import { artifacts, ZRXTokenContract } from '../src';
+
+chaiSetup.configure();
+const expect = chai.expect;
+const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
+
+describe('ZRXToken', () => {
+ let owner: string;
+ let spender: string;
+ let MAX_UINT: BigNumber;
+ let zrxToken: ZRXTokenContract;
+
+ before(async () => {
+ await blockchainLifecycle.startAsync();
+ });
+ after(async () => {
+ await blockchainLifecycle.revertAsync();
+ });
+ before(async () => {
+ const accounts = await web3Wrapper.getAvailableAddressesAsync();
+ owner = accounts[0];
+ spender = accounts[1];
+ zrxToken = await ZRXTokenContract.deployFrom0xArtifactAsync(artifacts.ZRXToken, provider, txDefaults);
+ MAX_UINT = constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS;
+ });
+ beforeEach(async () => {
+ await blockchainLifecycle.startAsync();
+ });
+ afterEach(async () => {
+ await blockchainLifecycle.revertAsync();
+ });
+ describe('constants', () => {
+ it('should have 18 decimals', async () => {
+ const decimals = new BigNumber(await zrxToken.decimals.callAsync());
+ const expectedDecimals = 18;
+ expect(decimals).to.be.bignumber.equal(expectedDecimals);
+ });
+
+ it('should have a total supply of 1 billion tokens', async () => {
+ const totalSupply = new BigNumber(await zrxToken.totalSupply.callAsync());
+ const expectedTotalSupply = 1000000000;
+ expect(Web3Wrapper.toUnitAmount(totalSupply, 18)).to.be.bignumber.equal(expectedTotalSupply);
+ });
+
+ it('should be named 0x Protocol Token', async () => {
+ const name = await zrxToken.name.callAsync();
+ const expectedName = '0x Protocol Token';
+ expect(name).to.be.equal(expectedName);
+ });
+
+ it('should have the symbol ZRX', async () => {
+ const symbol = await zrxToken.symbol.callAsync();
+ const expectedSymbol = 'ZRX';
+ expect(symbol).to.be.equal(expectedSymbol);
+ });
+ });
+
+ describe('constructor', () => {
+ it('should initialize owner balance to totalSupply', async () => {
+ const ownerBalance = await zrxToken.balanceOf.callAsync(owner);
+ const totalSupply = new BigNumber(await zrxToken.totalSupply.callAsync());
+ expect(totalSupply).to.be.bignumber.equal(ownerBalance);
+ });
+ });
+
+ describe('transfer', () => {
+ it('should transfer balance from sender to receiver', async () => {
+ const receiver = spender;
+ const initOwnerBalance = await zrxToken.balanceOf.callAsync(owner);
+ const amountToTransfer = new BigNumber(1);
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await zrxToken.transfer.sendTransactionAsync(receiver, amountToTransfer, { from: owner }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ const finalOwnerBalance = await zrxToken.balanceOf.callAsync(owner);
+ const finalReceiverBalance = await zrxToken.balanceOf.callAsync(receiver);
+
+ const expectedFinalOwnerBalance = initOwnerBalance.minus(amountToTransfer);
+ const expectedFinalReceiverBalance = amountToTransfer;
+ expect(finalOwnerBalance).to.be.bignumber.equal(expectedFinalOwnerBalance);
+ expect(finalReceiverBalance).to.be.bignumber.equal(expectedFinalReceiverBalance);
+ });
+
+ it('should return true on a 0 value transfer', async () => {
+ const didReturnTrue = await zrxToken.transfer.callAsync(spender, new BigNumber(0), {
+ from: owner,
+ });
+ expect(didReturnTrue).to.be.true();
+ });
+ });
+
+ describe('transferFrom', () => {
+ it('should return false if owner has insufficient balance', async () => {
+ const ownerBalance = await zrxToken.balanceOf.callAsync(owner);
+ const amountToTransfer = ownerBalance.plus(1);
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await zrxToken.approve.sendTransactionAsync(spender, amountToTransfer, {
+ from: owner,
+ gas: constants.MAX_TOKEN_APPROVE_GAS,
+ }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ const didReturnTrue = await zrxToken.transferFrom.callAsync(owner, spender, amountToTransfer, {
+ from: spender,
+ });
+ expect(didReturnTrue).to.be.false();
+ });
+
+ it('should return false if spender has insufficient allowance', async () => {
+ const ownerBalance = await zrxToken.balanceOf.callAsync(owner);
+ const amountToTransfer = ownerBalance;
+
+ const spenderAllowance = await zrxToken.allowance.callAsync(owner, spender);
+ const isSpenderAllowanceInsufficient = spenderAllowance.cmp(amountToTransfer) < 0;
+ expect(isSpenderAllowanceInsufficient).to.be.true();
+
+ const didReturnTrue = await zrxToken.transferFrom.callAsync(owner, spender, amountToTransfer, {
+ from: spender,
+ });
+ expect(didReturnTrue).to.be.false();
+ });
+
+ it('should return true on a 0 value transfer', async () => {
+ const amountToTransfer = new BigNumber(0);
+ const didReturnTrue = await zrxToken.transferFrom.callAsync(owner, spender, amountToTransfer, {
+ from: spender,
+ });
+ expect(didReturnTrue).to.be.true();
+ });
+
+ it('should not modify spender allowance if spender allowance is 2^256 - 1', async () => {
+ const initOwnerBalance = await zrxToken.balanceOf.callAsync(owner);
+ const amountToTransfer = initOwnerBalance;
+ const initSpenderAllowance = MAX_UINT;
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await zrxToken.approve.sendTransactionAsync(spender, initSpenderAllowance, {
+ from: owner,
+ gas: constants.MAX_TOKEN_APPROVE_GAS,
+ }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await zrxToken.transferFrom.sendTransactionAsync(owner, spender, amountToTransfer, {
+ from: spender,
+ gas: constants.MAX_TOKEN_TRANSFERFROM_GAS,
+ }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+
+ const newSpenderAllowance = await zrxToken.allowance.callAsync(owner, spender);
+ expect(initSpenderAllowance).to.be.bignumber.equal(newSpenderAllowance);
+ });
+
+ it('should transfer the correct balances if spender has sufficient allowance', async () => {
+ const initOwnerBalance = await zrxToken.balanceOf.callAsync(owner);
+ const initSpenderBalance = await zrxToken.balanceOf.callAsync(spender);
+ const amountToTransfer = initOwnerBalance;
+ const initSpenderAllowance = initOwnerBalance;
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await zrxToken.approve.sendTransactionAsync(spender, initSpenderAllowance),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await zrxToken.transferFrom.sendTransactionAsync(owner, spender, amountToTransfer, {
+ from: spender,
+ gas: constants.MAX_TOKEN_TRANSFERFROM_GAS,
+ }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+
+ const newOwnerBalance = await zrxToken.balanceOf.callAsync(owner);
+ const newSpenderBalance = await zrxToken.balanceOf.callAsync(spender);
+
+ expect(newOwnerBalance).to.be.bignumber.equal(0);
+ expect(newSpenderBalance).to.be.bignumber.equal(initSpenderBalance.plus(initOwnerBalance));
+ });
+
+ it('should modify allowance if spender has sufficient allowance less than 2^256 - 1', async () => {
+ const initOwnerBalance = await zrxToken.balanceOf.callAsync(owner);
+ const amountToTransfer = initOwnerBalance;
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await zrxToken.approve.sendTransactionAsync(spender, amountToTransfer),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+ await web3Wrapper.awaitTransactionSuccessAsync(
+ await zrxToken.transferFrom.sendTransactionAsync(owner, spender, amountToTransfer, {
+ from: spender,
+ gas: constants.MAX_TOKEN_TRANSFERFROM_GAS,
+ }),
+ constants.AWAIT_TRANSACTION_MINED_MS,
+ );
+
+ const newSpenderAllowance = await zrxToken.allowance.callAsync(owner, spender);
+ expect(newSpenderAllowance).to.be.bignumber.equal(0);
+ });
+ });
+});
diff --git a/contracts/tokens/tsconfig.json b/contracts/tokens/tsconfig.json
new file mode 100644
index 000000000..0d5f98cb8
--- /dev/null
+++ b/contracts/tokens/tsconfig.json
@@ -0,0 +1,33 @@
+{
+ "extends": "../../tsconfig",
+ "compilerOptions": {
+ "outDir": "lib",
+ "rootDir": ".",
+ "resolveJsonModule": true
+ },
+ "include": ["./src/**/*", "./test/**/*", "./generated-wrappers/**/*"],
+ "files": [
+ "./generated-artifacts/DummyERC20Token.json",
+ "./generated-artifacts/DummyMultipleReturnERC20Token.json",
+ "./generated-artifacts/DummyNoReturnERC20Token.json",
+ "./generated-artifacts/DummyERC721Receiver.json",
+ "./generated-artifacts/InvalidERC721Receiver.json",
+ "./generated-artifacts/DummyERC721Token.json",
+ "./generated-artifacts/ReentrantERC20Token.json",
+ "./generated-artifacts/ERC20Token.json",
+ "./generated-artifacts/IERC20Token.json",
+ "./generated-artifacts/MintableERC20Token.json",
+ "./generated-artifacts/UnlimitedAllowanceERC20Token.json",
+ "./generated-artifacts/ERC721Token.json",
+ "./generated-artifacts/IERC721Receiver.json",
+ "./generated-artifacts/IERC721Token.json",
+ "./generated-artifacts/MintableERC721Token.json",
+ "./generated-artifacts/IEtherToken.json",
+ "./generated-artifacts/WETH9.json",
+ "./generated-artifacts/ERC20Token_v1.json",
+ "./generated-artifacts/Token_v1.json",
+ "./generated-artifacts/UnlimitedAllowanceToken_v1.json",
+ "./generated-artifacts/ZRXToken.json"
+ ],
+ "exclude": ["./deploy/solc/solc_bin"]
+}
diff --git a/contracts/tokens/tslint.json b/contracts/tokens/tslint.json
new file mode 100644
index 000000000..1bb3ac2a2
--- /dev/null
+++ b/contracts/tokens/tslint.json
@@ -0,0 +1,6 @@
+{
+ "extends": ["@0x/tslint-config"],
+ "rules": {
+ "custom-no-magic-numbers": false
+ }
+}