add permissionless transformer deployer (#55)
* add permissionless transformer deployer
This commit is contained in:
Steve Marx
GitHub
@@ -49,6 +49,10 @@
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{
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"note": "Remove calldata signing functionality",
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"pr": 51
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},
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{
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"note": "Add a permissionless transformer deployer",
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"pr": 55
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}
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]
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},
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114
contracts/zero-ex/contracts/src/external/PermissionlessTransformerDeployer.sol
vendored
Normal file
114
contracts/zero-ex/contracts/src/external/PermissionlessTransformerDeployer.sol
vendored
Normal file
@@ -0,0 +1,114 @@
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/*
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Copyright 2020 ZeroEx Intl.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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pragma solidity ^0.6.5;
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pragma experimental ABIEncoderV2;
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/// @dev Deployer contract for ERC20 transformers.
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contract PermissionlessTransformerDeployer {
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/// @dev Emitted when a contract is deployed via `deploy()`.
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/// @param deployedAddress The address of the deployed contract.
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/// @param salt The deployment salt.
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/// @param sender The caller of `deploy()`.
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event Deployed(address deployedAddress, bytes32 salt, address sender);
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// @dev Mapping of deployed contract address to the deployment salt.
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mapping (address => bytes32) public toDeploymentSalt;
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// @dev Mapping of deployed contract address to the init code hash.
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mapping (address => bytes32) public toInitCodeHash;
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/// @dev Deploy a new contract. Any attached ETH will be forwarded.
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function deploy(bytes memory bytecode, bytes32 salt)
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public
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payable
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returns (address deployedAddress)
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{
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assembly {
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deployedAddress := create2(callvalue(), add(bytecode, 32), mload(bytecode), salt)
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}
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require(deployedAddress != address(0), 'PermissionlessTransformerDeployer/DEPLOY_FAILED');
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require(isDelegateCallSafe(deployedAddress), 'PermissionlessTransformerDeployer/UNSAFE_CODE');
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toDeploymentSalt[deployedAddress] = salt;
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toInitCodeHash[deployedAddress] = keccak256(bytecode);
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emit Deployed(deployedAddress, salt, msg.sender);
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}
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/// @dev Checks whether a given address is safe to be called via
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/// delegatecall. A contract is considered unsafe if it includes any
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/// of the following opcodes: CALLCODE, DELEGATECALL, SELFDESTRUCT,
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/// CREATE, CREATE2, SLOAD, and STORE. This code is adapted from
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/// https://github.com/dharma-eng/dharma-smart-wallet/blob/master/contracts/helpers/IndestructibleRegistry.sol
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/// @param target The address to check.
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/// @return True if the contract is considered safe for delegatecall.
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function isDelegateCallSafe(address target) public view returns (bool) {
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uint256 size;
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assembly { size := extcodesize(target) }
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require(size > 0, 'PermissionlessTransformerDeployer/NO_CODE');
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bytes memory extcode = new bytes(size);
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assembly {
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extcodecopy(target, add(extcode, 32), 0, size)
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}
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// Look for any reachable, impermissible opcodes.
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bool reachable = true;
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for (uint256 i = 0; i < extcode.length; i++) {
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uint8 op = uint8(extcode[i]);
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// If the opcode is a PUSH, skip over the push data.
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if (op > 95 && op < 128) { // pushN
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i += (op - 95);
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continue;
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}
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if (reachable) {
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// If execution is halted, mark subsequent opcodes unreachable.
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if (
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op == 254 || // invalid
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op == 243 || // return
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op == 253 || // revert
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op == 86 || // jump
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op == 0 // stop
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) {
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reachable = false;
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continue;
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}
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// If opcode is impermissible, contract is unsafe.
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if (
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op == 242 || // callcode
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op == 244 || // delegatecall
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op == 255 || // selfdestruct
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op == 240 || // create
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op == 245 || // create2
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op == 84 || // sload
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op == 85 // sstore
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) {
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return false;
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}
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} else if (op == 91) { // jumpdest
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// After a JUMPDEST, opcodes are reachable again.
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reachable = true;
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}
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}
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return true; // No impermissible opcodes found.
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}
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}
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@@ -0,0 +1,27 @@
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/*
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Copyright 2020 ZeroEx Intl.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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pragma solidity ^0.6.5;
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pragma experimental ABIEncoderV2;
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contract TestPermissionlessTransformerDeployerSuicidal {
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function kill() external {
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selfdestruct(msg.sender);
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}
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}
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@@ -0,0 +1,36 @@
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/*
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Copyright 2020 ZeroEx Intl.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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pragma solidity ^0.6.5;
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pragma experimental ABIEncoderV2;
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import "../src/transformers/LibERC20Transformer.sol";
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contract TestPermissionlessTransformerDeployerTransformer {
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uint256 public constant CONSTRUCTOR_FAIL_VALUE = 3333;
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address payable public immutable deployer;
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constructor() public payable {
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deployer = msg.sender;
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require(
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msg.value != CONSTRUCTOR_FAIL_VALUE,
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"TestTransformerDeployerTransformer/CONSTRUCTOR_FAIL"
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);
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}
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}
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@@ -42,7 +42,7 @@
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"config": {
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"publicInterfaceContracts": "IZeroEx,ZeroEx,FullMigration,InitialMigration,IFlashWallet,IAllowanceTarget,IERC20Transformer,IOwnableFeature,ISimpleFunctionRegistryFeature,ITokenSpenderFeature,ITransformERC20Feature,FillQuoteTransformer,PayTakerTransformer,WethTransformer,OwnableFeature,SimpleFunctionRegistryFeature,TransformERC20Feature,TokenSpenderFeature,AffiliateFeeTransformer,SignatureValidatorFeature,MetaTransactionsFeature,LogMetadataTransformer,BridgeAdapter,LiquidityProviderFeature,ILiquidityProviderFeature,NativeOrdersFeature,INativeOrdersFeature",
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"abis:comment": "This list is auto-generated by contracts-gen. Don't edit manually.",
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"abis": "./test/generated-artifacts/@(AffiliateFeeTransformer|AllowanceTarget|BootstrapFeature|BridgeAdapter|FeeCollector|FillQuoteTransformer|FixinCommon|FixinEIP712|FixinProtocolFees|FixinReentrancyGuard|FixinTokenSpender|FlashWallet|FullMigration|IAllowanceTarget|IBootstrapFeature|IBridgeAdapter|IERC20Bridge|IERC20Transformer|IExchange|IFeature|IFlashWallet|IGasToken|ILiquidityProvider|ILiquidityProviderFeature|ILiquidityProviderSandbox|IMetaTransactionsFeature|INativeOrdersFeature|IOwnableFeature|ISignatureValidatorFeature|ISimpleFunctionRegistryFeature|IStaking|ITestSimpleFunctionRegistryFeature|ITokenSpenderFeature|ITransformERC20Feature|IUniswapFeature|IZeroEx|InitialMigration|LibBootstrap|LibCommonRichErrors|LibERC20Transformer|LibLiquidityProviderRichErrors|LibMetaTransactionsRichErrors|LibMetaTransactionsStorage|LibMigrate|LibNativeOrder|LibNativeOrdersRichErrors|LibNativeOrdersStorage|LibOrderHash|LibOwnableRichErrors|LibOwnableStorage|LibProxyRichErrors|LibProxyStorage|LibReentrancyGuardStorage|LibSignature|LibSignatureRichErrors|LibSimpleFunctionRegistryRichErrors|LibSimpleFunctionRegistryStorage|LibSpenderRichErrors|LibStorage|LibTokenSpenderStorage|LibTransformERC20RichErrors|LibTransformERC20Storage|LibWalletRichErrors|LiquidityProviderFeature|LiquidityProviderSandbox|LogMetadataTransformer|MetaTransactionsFeature|MixinAdapterAddresses|MixinBalancer|MixinCurve|MixinDodo|MixinKyber|MixinMStable|MixinMooniswap|MixinOasis|MixinShell|MixinSushiswap|MixinUniswap|MixinUniswapV2|MixinZeroExBridge|NativeOrdersFeature|OwnableFeature|PayTakerTransformer|SignatureValidatorFeature|SimpleFunctionRegistryFeature|TestBridge|TestCallTarget|TestDelegateCaller|TestFillQuoteTransformerBridge|TestFillQuoteTransformerExchange|TestFillQuoteTransformerHost|TestFixinProtocolFees|TestFixinTokenSpender|TestFullMigration|TestInitialMigration|TestLibNativeOrder|TestLibSignature|TestLiquidityProvider|TestMetaTransactionsNativeOrdersFeature|TestMetaTransactionsTransformERC20Feature|TestMigrator|TestMintTokenERC20Transformer|TestMintableERC20Token|TestNativeOrdersFeature|TestRfqOriginRegistration|TestSimpleFunctionRegistryFeatureImpl1|TestSimpleFunctionRegistryFeatureImpl2|TestStaking|TestTokenSpender|TestTokenSpenderERC20Token|TestTransformERC20|TestTransformerBase|TestTransformerDeployerTransformer|TestTransformerHost|TestWeth|TestWethTransformerHost|TestZeroExFeature|TokenSpenderFeature|TransformERC20Feature|Transformer|TransformerDeployer|UniswapFeature|WethTransformer|ZeroEx|ZeroExOptimized).json"
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"abis": "./test/generated-artifacts/@(AffiliateFeeTransformer|AllowanceTarget|BootstrapFeature|BridgeAdapter|FeeCollector|FillQuoteTransformer|FixinCommon|FixinEIP712|FixinProtocolFees|FixinReentrancyGuard|FixinTokenSpender|FlashWallet|FullMigration|IAllowanceTarget|IBootstrapFeature|IBridgeAdapter|IERC20Bridge|IERC20Transformer|IExchange|IFeature|IFlashWallet|IGasToken|ILiquidityProvider|ILiquidityProviderFeature|ILiquidityProviderSandbox|IMetaTransactionsFeature|INativeOrdersFeature|IOwnableFeature|ISignatureValidatorFeature|ISimpleFunctionRegistryFeature|IStaking|ITestSimpleFunctionRegistryFeature|ITokenSpenderFeature|ITransformERC20Feature|IUniswapFeature|IZeroEx|InitialMigration|LibBootstrap|LibCommonRichErrors|LibERC20Transformer|LibLiquidityProviderRichErrors|LibMetaTransactionsRichErrors|LibMetaTransactionsStorage|LibMigrate|LibNativeOrder|LibNativeOrdersRichErrors|LibNativeOrdersStorage|LibOrderHash|LibOwnableRichErrors|LibOwnableStorage|LibProxyRichErrors|LibProxyStorage|LibReentrancyGuardStorage|LibSignature|LibSignatureRichErrors|LibSimpleFunctionRegistryRichErrors|LibSimpleFunctionRegistryStorage|LibSpenderRichErrors|LibStorage|LibTokenSpenderStorage|LibTransformERC20RichErrors|LibTransformERC20Storage|LibWalletRichErrors|LiquidityProviderFeature|LiquidityProviderSandbox|LogMetadataTransformer|MetaTransactionsFeature|MixinAdapterAddresses|MixinBalancer|MixinCurve|MixinDodo|MixinKyber|MixinMStable|MixinMooniswap|MixinOasis|MixinShell|MixinSushiswap|MixinUniswap|MixinUniswapV2|MixinZeroExBridge|NativeOrdersFeature|OwnableFeature|PayTakerTransformer|PermissionlessTransformerDeployer|SignatureValidatorFeature|SimpleFunctionRegistryFeature|TestBridge|TestCallTarget|TestDelegateCaller|TestFillQuoteTransformerBridge|TestFillQuoteTransformerExchange|TestFillQuoteTransformerHost|TestFixinProtocolFees|TestFixinTokenSpender|TestFullMigration|TestInitialMigration|TestLibNativeOrder|TestLibSignature|TestLiquidityProvider|TestMetaTransactionsNativeOrdersFeature|TestMetaTransactionsTransformERC20Feature|TestMigrator|TestMintTokenERC20Transformer|TestMintableERC20Token|TestNativeOrdersFeature|TestPermissionlessTransformerDeployerSuicidal|TestPermissionlessTransformerDeployerTransformer|TestRfqOriginRegistration|TestSimpleFunctionRegistryFeatureImpl1|TestSimpleFunctionRegistryFeatureImpl2|TestStaking|TestTokenSpender|TestTokenSpenderERC20Token|TestTransformERC20|TestTransformerBase|TestTransformerDeployerTransformer|TestTransformerHost|TestWeth|TestWethTransformerHost|TestZeroExFeature|TokenSpenderFeature|TransformERC20Feature|Transformer|TransformerDeployer|UniswapFeature|WethTransformer|ZeroEx|ZeroExOptimized).json"
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},
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"repository": {
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"type": "git",
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@@ -88,6 +88,7 @@ import * as MixinZeroExBridge from '../test/generated-artifacts/MixinZeroExBridg
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import * as NativeOrdersFeature from '../test/generated-artifacts/NativeOrdersFeature.json';
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import * as OwnableFeature from '../test/generated-artifacts/OwnableFeature.json';
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import * as PayTakerTransformer from '../test/generated-artifacts/PayTakerTransformer.json';
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import * as PermissionlessTransformerDeployer from '../test/generated-artifacts/PermissionlessTransformerDeployer.json';
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import * as SignatureValidatorFeature from '../test/generated-artifacts/SignatureValidatorFeature.json';
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import * as SimpleFunctionRegistryFeature from '../test/generated-artifacts/SimpleFunctionRegistryFeature.json';
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import * as TestBridge from '../test/generated-artifacts/TestBridge.json';
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@@ -109,6 +110,8 @@ import * as TestMigrator from '../test/generated-artifacts/TestMigrator.json';
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import * as TestMintableERC20Token from '../test/generated-artifacts/TestMintableERC20Token.json';
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import * as TestMintTokenERC20Transformer from '../test/generated-artifacts/TestMintTokenERC20Transformer.json';
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import * as TestNativeOrdersFeature from '../test/generated-artifacts/TestNativeOrdersFeature.json';
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import * as TestPermissionlessTransformerDeployerSuicidal from '../test/generated-artifacts/TestPermissionlessTransformerDeployerSuicidal.json';
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import * as TestPermissionlessTransformerDeployerTransformer from '../test/generated-artifacts/TestPermissionlessTransformerDeployerTransformer.json';
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import * as TestRfqOriginRegistration from '../test/generated-artifacts/TestRfqOriginRegistration.json';
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import * as TestSimpleFunctionRegistryFeatureImpl1 from '../test/generated-artifacts/TestSimpleFunctionRegistryFeatureImpl1.json';
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import * as TestSimpleFunctionRegistryFeatureImpl2 from '../test/generated-artifacts/TestSimpleFunctionRegistryFeatureImpl2.json';
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@@ -152,6 +155,7 @@ export const artifacts = {
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IFlashWallet: IFlashWallet as ContractArtifact,
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ILiquidityProviderSandbox: ILiquidityProviderSandbox as ContractArtifact,
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LiquidityProviderSandbox: LiquidityProviderSandbox as ContractArtifact,
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PermissionlessTransformerDeployer: PermissionlessTransformerDeployer as ContractArtifact,
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TransformerDeployer: TransformerDeployer as ContractArtifact,
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BootstrapFeature: BootstrapFeature as ContractArtifact,
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IBootstrapFeature: IBootstrapFeature as ContractArtifact,
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@@ -243,6 +247,8 @@ export const artifacts = {
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TestMintTokenERC20Transformer: TestMintTokenERC20Transformer as ContractArtifact,
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TestMintableERC20Token: TestMintableERC20Token as ContractArtifact,
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TestNativeOrdersFeature: TestNativeOrdersFeature as ContractArtifact,
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TestPermissionlessTransformerDeployerSuicidal: TestPermissionlessTransformerDeployerSuicidal as ContractArtifact,
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TestPermissionlessTransformerDeployerTransformer: TestPermissionlessTransformerDeployerTransformer as ContractArtifact,
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TestRfqOriginRegistration: TestRfqOriginRegistration as ContractArtifact,
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TestSimpleFunctionRegistryFeatureImpl1: TestSimpleFunctionRegistryFeatureImpl1 as ContractArtifact,
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TestSimpleFunctionRegistryFeatureImpl2: TestSimpleFunctionRegistryFeatureImpl2 as ContractArtifact,
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@@ -0,0 +1,102 @@
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import { blockchainTests, expect, verifyEventsFromLogs } from '@0x/contracts-test-utils';
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import { BigNumber, hexUtils } from '@0x/utils';
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import * as ethjs from 'ethereumjs-util';
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import { artifacts } from './artifacts';
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import {
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PermissionlessTransformerDeployerContract,
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PermissionlessTransformerDeployerEvents,
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TestPermissionlessTransformerDeployerTransformerContract,
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} from './wrappers';
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blockchainTests.resets('PermissionlessTransformerDeployer', env => {
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let owner: string;
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let sender: string;
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let deployer: PermissionlessTransformerDeployerContract;
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const deployBytes = artifacts.TestPermissionlessTransformerDeployerTransformer.compilerOutput.evm.bytecode.object;
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before(async () => {
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[owner, sender] = await env.getAccountAddressesAsync();
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deployer = await PermissionlessTransformerDeployerContract.deployFrom0xArtifactAsync(
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artifacts.PermissionlessTransformerDeployer,
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env.provider,
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env.txDefaults,
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artifacts,
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);
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});
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describe('deploy()', () => {
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it('can deploy safe contract', async () => {
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const salt = hexUtils.random();
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const targetAddress = await deployer.deploy(deployBytes, salt).callAsync();
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const target = new TestPermissionlessTransformerDeployerTransformerContract(targetAddress, env.provider);
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const receipt = await deployer.deploy(deployBytes, salt).awaitTransactionSuccessAsync({ from: sender });
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expect(await target.deployer().callAsync()).to.eq(deployer.address);
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verifyEventsFromLogs(
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receipt.logs,
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[{ deployedAddress: targetAddress, salt, sender }],
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PermissionlessTransformerDeployerEvents.Deployed,
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);
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});
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it('deploys at predictable address', async () => {
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const salt = hexUtils.random();
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const targetAddress = await deployer.deploy(deployBytes, salt).callAsync();
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const initCodeHash = hexUtils.toHex(ethjs.sha3(deployBytes));
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const expectedAddress = hexUtils.slice(
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hexUtils.toHex(ethjs.sha3(hexUtils.concat('0xFF', deployer.address, salt, initCodeHash))),
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12,
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);
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expect(targetAddress).to.eq(expectedAddress);
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});
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it('cannot deploy suicidal contract', async () => {
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const suicidalDeployBytes =
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artifacts.TestPermissionlessTransformerDeployerSuicidal.compilerOutput.evm.bytecode.object;
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const tx = deployer.deploy(suicidalDeployBytes, hexUtils.random()).awaitTransactionSuccessAsync();
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expect(tx).to.revertWith('PermissionlessTransformerDeployer/UNSAFE_CODE');
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});
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it('can deploy safe contract with value', async () => {
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const salt = hexUtils.random();
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const targetAddress = await deployer.deploy(deployBytes, salt).callAsync({ from: sender, value: 1 });
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const target = new TestPermissionlessTransformerDeployerTransformerContract(targetAddress, env.provider);
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const receipt = await deployer
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.deploy(deployBytes, salt)
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.awaitTransactionSuccessAsync({ from: sender, value: 1 });
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expect(await target.deployer().callAsync()).to.eq(deployer.address);
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verifyEventsFromLogs(
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receipt.logs,
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[{ deployedAddress: targetAddress, salt, sender }],
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PermissionlessTransformerDeployerEvents.Deployed,
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);
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expect(await env.web3Wrapper.getBalanceInWeiAsync(targetAddress)).to.bignumber.eq(1);
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});
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it('reverts if constructor throws', async () => {
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const CONSTRUCTOR_FAIL_VALUE = new BigNumber(3333);
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const tx = deployer
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.deploy(deployBytes, hexUtils.random())
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.callAsync({ value: CONSTRUCTOR_FAIL_VALUE, from: sender });
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return expect(tx).to.revertWith('PermissionlessTransformerDeployer/DEPLOY_FAILED');
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});
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it('can retrieve deployment salt from contract address', async () => {
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const salt = hexUtils.random();
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const targetAddress = await deployer.deploy(deployBytes, salt).callAsync({ from: sender });
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await deployer.deploy(deployBytes, salt).awaitTransactionSuccessAsync({ from: sender });
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expect(await deployer.toDeploymentSalt(targetAddress).callAsync()).to.eq(salt);
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});
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it('can retrieve deployment init code hash from contract address', async () => {
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const salt = hexUtils.random();
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const targetAddress = await deployer.deploy(deployBytes, salt).callAsync({ from: sender });
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await deployer.deploy(deployBytes, salt).awaitTransactionSuccessAsync({ from: sender });
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expect(hexUtils.toHex(await deployer.toInitCodeHash(targetAddress).callAsync())).to.eq(
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hexUtils.toHex(ethjs.sha3(deployBytes)),
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||||
);
|
||||
});
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||||
});
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||||
});
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@@ -86,6 +86,7 @@ export * from '../test/generated-wrappers/mixin_zero_ex_bridge';
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export * from '../test/generated-wrappers/native_orders_feature';
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export * from '../test/generated-wrappers/ownable_feature';
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export * from '../test/generated-wrappers/pay_taker_transformer';
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export * from '../test/generated-wrappers/permissionless_transformer_deployer';
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export * from '../test/generated-wrappers/signature_validator_feature';
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export * from '../test/generated-wrappers/simple_function_registry_feature';
|
||||
export * from '../test/generated-wrappers/test_bridge';
|
||||
@@ -107,6 +108,8 @@ export * from '../test/generated-wrappers/test_migrator';
|
||||
export * from '../test/generated-wrappers/test_mint_token_erc20_transformer';
|
||||
export * from '../test/generated-wrappers/test_mintable_erc20_token';
|
||||
export * from '../test/generated-wrappers/test_native_orders_feature';
|
||||
export * from '../test/generated-wrappers/test_permissionless_transformer_deployer_suicidal';
|
||||
export * from '../test/generated-wrappers/test_permissionless_transformer_deployer_transformer';
|
||||
export * from '../test/generated-wrappers/test_rfq_origin_registration';
|
||||
export * from '../test/generated-wrappers/test_simple_function_registry_feature_impl1';
|
||||
export * from '../test/generated-wrappers/test_simple_function_registry_feature_impl2';
|
||||
|
||||
@@ -113,6 +113,7 @@
|
||||
"test/generated-artifacts/NativeOrdersFeature.json",
|
||||
"test/generated-artifacts/OwnableFeature.json",
|
||||
"test/generated-artifacts/PayTakerTransformer.json",
|
||||
"test/generated-artifacts/PermissionlessTransformerDeployer.json",
|
||||
"test/generated-artifacts/SignatureValidatorFeature.json",
|
||||
"test/generated-artifacts/SimpleFunctionRegistryFeature.json",
|
||||
"test/generated-artifacts/TestBridge.json",
|
||||
@@ -134,6 +135,8 @@
|
||||
"test/generated-artifacts/TestMintTokenERC20Transformer.json",
|
||||
"test/generated-artifacts/TestMintableERC20Token.json",
|
||||
"test/generated-artifacts/TestNativeOrdersFeature.json",
|
||||
"test/generated-artifacts/TestPermissionlessTransformerDeployerSuicidal.json",
|
||||
"test/generated-artifacts/TestPermissionlessTransformerDeployerTransformer.json",
|
||||
"test/generated-artifacts/TestRfqOriginRegistration.json",
|
||||
"test/generated-artifacts/TestSimpleFunctionRegistryFeatureImpl1.json",
|
||||
"test/generated-artifacts/TestSimpleFunctionRegistryFeatureImpl2.json",
|
||||
|
||||
Reference in New Issue
Block a user