From 970bef717e422ac79901300b56ac8f11d3593685 Mon Sep 17 00:00:00 2001 From: Amir Bandeali Date: Tue, 31 Jul 2018 12:44:16 -0700 Subject: Add return values to combinatorial fillOrder tests --- packages/contracts/test/utils/exchange_wrapper.ts | 29 ++++++++++++++++++- .../test/utils/fill_order_combinatorial_utils.ts | 33 +++++++++++++++------- 2 files changed, 51 insertions(+), 11 deletions(-) diff --git a/packages/contracts/test/utils/exchange_wrapper.ts b/packages/contracts/test/utils/exchange_wrapper.ts index 490ea959b..bff2e9536 100644 --- a/packages/contracts/test/utils/exchange_wrapper.ts +++ b/packages/contracts/test/utils/exchange_wrapper.ts @@ -8,7 +8,7 @@ import { ExchangeContract } from '../../generated_contract_wrappers/exchange'; import { formatters } from './formatters'; import { LogDecoder } from './log_decoder'; import { orderUtils } from './order_utils'; -import { OrderInfo, SignedTransaction } from './types'; +import { FillResults, OrderInfo, SignedTransaction } from './types'; export class ExchangeWrapper { private readonly _exchange: ExchangeContract; @@ -243,4 +243,31 @@ export class ExchangeWrapper { const tx = await this._logDecoder.getTxWithDecodedLogsAsync(txHash); return tx; } + public async getFillOrderResultsAsync( + signedOrder: SignedOrder, + from: string, + opts: { takerAssetFillAmount?: BigNumber } = {}, + ): Promise { + const params = orderUtils.createFill(signedOrder, opts.takerAssetFillAmount); + const fillResults = await this._exchange.fillOrder.callAsync( + params.order, + params.takerAssetFillAmount, + params.signature, + { from }, + ); + return fillResults; + } + public abiEncodeFillOrder( + signedOrder: SignedOrder, + from: string, + opts: { takerAssetFillAmount?: BigNumber } = {}, + ): string { + const params = orderUtils.createFill(signedOrder, opts.takerAssetFillAmount); + const data = this._exchange.fillOrder.getABIEncodedTransactionData( + params.order, + params.takerAssetFillAmount, + params.signature, + ); + return data; + } } diff --git a/packages/contracts/test/utils/fill_order_combinatorial_utils.ts b/packages/contracts/test/utils/fill_order_combinatorial_utils.ts index bdd1e62a2..85acae5af 100644 --- a/packages/contracts/test/utils/fill_order_combinatorial_utils.ts +++ b/packages/contracts/test/utils/fill_order_combinatorial_utils.ts @@ -456,6 +456,29 @@ export class FillOrderCombinatorialUtils { signedOrder.takerAssetAmount, signedOrder.makerAssetAmount, ); + const expMakerFeePaid = orderUtils.getPartialAmount( + expFilledTakerAmount, + signedOrder.takerAssetAmount, + signedOrder.makerFee, + ); + const expTakerFeePaid = orderUtils.getPartialAmount( + expFilledTakerAmount, + signedOrder.takerAssetAmount, + signedOrder.takerFee, + ); + const fillResults = await this.exchangeWrapper.getFillOrderResultsAsync(signedOrder, this.takerAddress, { + takerAssetFillAmount, + }); + expect(fillResults.takerAssetFilledAmount).to.be.bignumber.equal( + expFilledTakerAmount, + 'takerAssetFilledAmount', + ); + expect(fillResults.makerAssetFilledAmount).to.be.bignumber.equal( + expFilledMakerAmount, + 'makerAssetFilledAmount', + ); + expect(fillResults.takerFeePaid).to.be.bignumber.equal(expTakerFeePaid, 'takerFeePaid'); + expect(fillResults.makerFeePaid).to.be.bignumber.equal(expMakerFeePaid, 'makerFeePaid'); // - Let's fill the order! const txReceipt = await this.exchangeWrapper.fillOrderAsync(signedOrder, this.takerAddress, { @@ -479,17 +502,7 @@ export class FillOrderCombinatorialUtils { expFilledTakerAmount, 'log.args.takerAssetFilledAmount', ); - const expMakerFeePaid = orderUtils.getPartialAmount( - expFilledTakerAmount, - signedOrder.takerAssetAmount, - signedOrder.makerFee, - ); expect(log.args.makerFeePaid).to.be.bignumber.equal(expMakerFeePaid, 'log.args.makerFeePaid'); - const expTakerFeePaid = orderUtils.getPartialAmount( - expFilledTakerAmount, - signedOrder.takerAssetAmount, - signedOrder.takerFee, - ); expect(log.args.takerFeePaid).to.be.bignumber.equal(expTakerFeePaid, 'logs.args.takerFeePaid'); expect(log.args.orderHash).to.be.equal(orderHash, 'log.args.orderHash'); expect(log.args.makerAssetData).to.be.equal(makerAssetData, 'log.args.makerAssetData'); -- cgit From 1fb3da6b5325497ea18f17dc61cf50aed7bcfc95 Mon Sep 17 00:00:00 2001 From: Amir Bandeali Date: Tue, 7 Aug 2018 13:54:34 -0700 Subject: Increment free memory pointer for internal Exchange functions that use asm --- .../Exchange/MixinAssetProxyDispatcher.sol | 6 +++++- .../2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol | 18 ++++++++---------- .../contracts/src/2.0.0/test/TestLibs/TestLibs.sol | 22 +++++++++++++++++++++- 3 files changed, 34 insertions(+), 12 deletions(-) diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol index e9f882194..b34903668 100644 --- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol +++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol @@ -159,18 +159,22 @@ contract MixinAssetProxyDispatcher is } /////// Call `assetProxy.transferFrom` using the constructed calldata /////// + let inputLen := sub(cdEnd, cdStart) let success := call( gas, // forward all gas assetProxy, // call address of asset proxy 0, // don't send any ETH cdStart, // pointer to start of input - sub(cdEnd, cdStart), // length of input + inputLen, // length of input cdStart, // write output over input 512 // reserve 512 bytes for output ) if iszero(success) { revert(cdStart, returndatasize()) } + + // Increment free memory pointer + mstore(64, add(cdStart, inputLen)) } } } diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol index 704c7061c..f047342b3 100644 --- a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol +++ b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol @@ -24,20 +24,17 @@ import "./LibOrder.sol"; contract LibAbiEncoder { - /// @dev ABI encodes calldata for `fillOrder` in memory and returns the address range. - /// This range can be passed into `call` or `delegatecall` to invoke an external - /// call to `fillOrder`. + /// @dev ABI encodes calldata for `fillOrder`. /// @param order Order struct containing order specifications. /// @param takerAssetFillAmount Desired amount of takerAsset to sell. /// @param signature Proof that order has been created by maker. - /// @return calldataBegin Memory address of ABI encoded calldata. - /// @return calldataLength Lenfgth of ABI encoded calldata. + /// @return ABI encoded calldata for `fillOrder`. function abiEncodeFillOrder( LibOrder.Order memory order, uint256 takerAssetFillAmount, bytes memory signature ) - public + internal pure returns (bytes memory fillOrderCalldata) { @@ -207,10 +204,11 @@ contract LibAbiEncoder { } // Set length of calldata - mstore( - fillOrderCalldata, - sub(dataAreaEnd, add(fillOrderCalldata, 0x20)) - ) + let calldataLen := sub(dataAreaEnd, add(fillOrderCalldata, 0x20)) + mstore(fillOrderCalldata, calldataLen) + + // Increment free memory pointer + mstore(0x40, add(fillOrderCalldata, add(calldataLen, 0x20))) } return fillOrderCalldata; diff --git a/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol b/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol index 5a349527b..4a99dd9c1 100644 --- a/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol +++ b/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol @@ -22,13 +22,33 @@ pragma experimental ABIEncoderV2; import "../../protocol/Exchange/libs/LibMath.sol"; import "../../protocol/Exchange/libs/LibOrder.sol"; import "../../protocol/Exchange/libs/LibFillResults.sol"; +import "../../protocol/Exchange/libs/LibAbiEncoder.sol"; contract TestLibs is LibMath, LibOrder, - LibFillResults + LibFillResults, + LibAbiEncoder { + + function publicAbiEncodeFillOrder( + Order memory order, + uint256 takerAssetFillAmount, + bytes memory signature + ) + public + pure + returns (bytes memory fillOrderCalldata) + { + fillOrderCalldata = abiEncodeFillOrder( + order, + takerAssetFillAmount, + signature + ); + return fillOrderCalldata; + } + function publicGetPartialAmount( uint256 numerator, uint256 denominator, -- cgit From 9a5d7b76352e804d532e7a6d08d83f7b0ea7bd7f Mon Sep 17 00:00:00 2001 From: Amir Bandeali Date: Tue, 7 Aug 2018 14:06:50 -0700 Subject: Test abiEncodeFillOrder as part of combinatorial follOrder tests --- .../TestExchangeInternals.sol | 1 + packages/contracts/test/utils/exchange_wrapper.ts | 6 +--- .../test/utils/fill_order_combinatorial_utils.ts | 22 +++++++++++++++ packages/migrations/package.json | 33 ++++++++++++++-------- 4 files changed, 46 insertions(+), 16 deletions(-) diff --git a/packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol b/packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol index 923bac97d..d9cec9edc 100644 --- a/packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol +++ b/packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol @@ -22,6 +22,7 @@ pragma experimental ABIEncoderV2; import "../../protocol/Exchange/Exchange.sol"; +// solhint-disable no-empty-blocks contract TestExchangeInternals is Exchange { diff --git a/packages/contracts/test/utils/exchange_wrapper.ts b/packages/contracts/test/utils/exchange_wrapper.ts index bff2e9536..d57592d6d 100644 --- a/packages/contracts/test/utils/exchange_wrapper.ts +++ b/packages/contracts/test/utils/exchange_wrapper.ts @@ -257,11 +257,7 @@ export class ExchangeWrapper { ); return fillResults; } - public abiEncodeFillOrder( - signedOrder: SignedOrder, - from: string, - opts: { takerAssetFillAmount?: BigNumber } = {}, - ): string { + public abiEncodeFillOrder(signedOrder: SignedOrder, opts: { takerAssetFillAmount?: BigNumber } = {}): string { const params = orderUtils.createFill(signedOrder, opts.takerAssetFillAmount); const data = this._exchange.fillOrder.getABIEncodedTransactionData( params.order, diff --git a/packages/contracts/test/utils/fill_order_combinatorial_utils.ts b/packages/contracts/test/utils/fill_order_combinatorial_utils.ts index 85acae5af..284c4a2db 100644 --- a/packages/contracts/test/utils/fill_order_combinatorial_utils.ts +++ b/packages/contracts/test/utils/fill_order_combinatorial_utils.ts @@ -15,6 +15,7 @@ import * as _ from 'lodash'; import 'make-promises-safe'; import { ExchangeContract, ExchangeFillEventArgs } from '../../generated_contract_wrappers/exchange'; +import { TestLibsContract } from '../../generated_contract_wrappers/test_libs'; import { artifacts } from './artifacts'; import { expectTransactionFailedAsync } from './assertions'; @@ -123,6 +124,8 @@ export async function fillOrderCombinatorialUtilsFactoryAsync( exchangeContract.address, ); + const testLibsContract = await TestLibsContract.deployFrom0xArtifactAsync(artifacts.TestLibs, provider, txDefaults); + const fillOrderCombinatorialUtils = new FillOrderCombinatorialUtils( orderFactory, ownerAddress, @@ -132,6 +135,7 @@ export async function fillOrderCombinatorialUtilsFactoryAsync( zrxAssetData, exchangeWrapper, assetWrapper, + testLibsContract, ); return fillOrderCombinatorialUtils; } @@ -145,6 +149,7 @@ export class FillOrderCombinatorialUtils { public zrxAssetData: string; public exchangeWrapper: ExchangeWrapper; public assetWrapper: AssetWrapper; + public testLibsContract: TestLibsContract; public static generateFillOrderCombinations(): FillScenario[] { const takerScenarios = [ TakerScenario.Unspecified, @@ -329,6 +334,7 @@ export class FillOrderCombinatorialUtils { zrxAssetData: string, exchangeWrapper: ExchangeWrapper, assetWrapper: AssetWrapper, + testLibsContract: TestLibsContract, ) { this.orderFactory = orderFactory; this.ownerAddress = ownerAddress; @@ -338,6 +344,7 @@ export class FillOrderCombinatorialUtils { this.zrxAssetData = zrxAssetData; this.exchangeWrapper = exchangeWrapper; this.assetWrapper = assetWrapper; + this.testLibsContract = testLibsContract; } public async testFillOrderScenarioAsync( provider: Provider, @@ -410,6 +417,8 @@ export class FillOrderCombinatorialUtils { lazyStore, fillRevertReasonIfExists, ); + + await this._abiEncodeFillOrderAndAssertOutcomeAsync(signedOrder, takerAssetFillAmount); } private async _fillOrderAndAssertOutcomeAsync( signedOrder: SignedOrder, @@ -584,6 +593,19 @@ export class FillOrderCombinatorialUtils { 'ZRXAssetBalanceOfFeeRecipient', ); } + private async _abiEncodeFillOrderAndAssertOutcomeAsync( + signedOrder: SignedOrder, + takerAssetFillAmount: BigNumber, + ): Promise { + const params = orderUtils.createFill(signedOrder, takerAssetFillAmount); + const expectedAbiEncodedData = this.exchangeWrapper.abiEncodeFillOrder(signedOrder, { takerAssetFillAmount }); + const libsAbiEncodedData = await this.testLibsContract.publicAbiEncodeFillOrder.callAsync( + params.order, + params.takerAssetFillAmount, + params.signature, + ); + expect(libsAbiEncodedData).to.be.equal(expectedAbiEncodedData, 'ABIEncodedFillOrderData'); + } private async _getTakerAssetFillAmountAsync( signedOrder: SignedOrder, takerAssetFillAmountScenario: TakerAssetFillAmountScenario, diff --git a/packages/migrations/package.json b/packages/migrations/package.json index c4d14eaee..06b63d9b7 100644 --- a/packages/migrations/package.json +++ b/packages/migrations/package.json @@ -13,8 +13,10 @@ "manual:postpublish": "yarn build; node ./scripts/postpublish.js", "pre_build": "run-s copy_artifacts generate_contract_wrappers", "copy_artifacts": "copyfiles 'artifacts/**/*' ./lib", - "clean": "shx rm -rf lib src/contract_wrappers", - "lint": "tslint --project . --exclude **/src/v2/contract_wrappers/**/* --exclude **/src/v1/contract_wrappers/**/*", + "clean": + "shx rm -rf lib src/1.0.0/contract_wrappers src/2.0.0/contract_wrappers src/2.0.0-beta-testnet/contract_wrappers", + "lint": + "tslint --project . --exclude **/src/v2/contract_wrappers/**/* --exclude **/src/v1/contract_wrappers/**/*", "migrate:v1": "run-s build compile:v1 script:migrate:v1", "migrate:v2": "run-s build compile:v2 script:migrate:v2", "migrate:v2-beta-testnet": "run-s build compile:v2-beta-testnet script:migrate:v2-beta-testnet", @@ -22,18 +24,27 @@ "script:migrate:v2": "node ./lib/migrate.js --contracts-version 2.0.0", "script:migrate:v2-beta-testnet": "node ./lib/migrate.js --contracts-version 2.0.0-beta-testnet", "generate_contract_wrappers": "run-p generate_contract_wrappers:*", - "generate_contract_wrappers:v1": "abi-gen --abis ${npm_package_config_abis_v1} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/1.0.0/contract_wrappers --backend ethers", - "generate_contract_wrappers:v2": "abi-gen --abis ${npm_package_config_abis_v2} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/2.0.0/contract_wrappers --backend ethers", - "generate_contract_wrappers:v2-beta-testnet": "abi-gen --abis ${npm_package_config_abis_v2BetaTestnet} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/2.0.0-beta-testnet/contract_wrappers --backend ethers", - "compile:v1": "sol-compiler --artifacts-dir artifacts/1.0.0 --contracts Exchange_v1,DummyERC20Token,ZRXToken,WETH9,TokenTransferProxy_v1,MultiSigWallet,MultiSigWalletWithTimeLock,MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress,TokenRegistry", - "compile:v2": "sol-compiler --artifacts-dir artifacts/2.0.0 --contracts ERC20Token,DummyERC20Token,ERC721Token,DummyERC721Token,ERC20Proxy,ERC721Proxy,Exchange,Forwarder,MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress,ZRXToken,WETH9,IWallet,IValidator", - "compile:v2-beta-testnet": "sol-compiler --artifacts-dir artifacts/2.0.0-beta-testnet --contracts AssetProxyOwner,ERC20Proxy,ERC721Proxy,Exchange,Forwarder,IWallet,IValidator,ERC20Token,ERC721Token" + "generate_contract_wrappers:v1": + "abi-gen --abis ${npm_package_config_abis_v1} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/1.0.0/contract_wrappers --backend ethers", + "generate_contract_wrappers:v2": + "abi-gen --abis ${npm_package_config_abis_v2} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/2.0.0/contract_wrappers --backend ethers", + "generate_contract_wrappers:v2-beta-testnet": + "abi-gen --abis ${npm_package_config_abis_v2BetaTestnet} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/2.0.0-beta-testnet/contract_wrappers --backend ethers", + "compile:v1": + "sol-compiler --artifacts-dir artifacts/1.0.0 --contracts Exchange_v1,DummyERC20Token,ZRXToken,WETH9,TokenTransferProxy_v1,MultiSigWallet,MultiSigWalletWithTimeLock,MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress,TokenRegistry", + "compile:v2": + "sol-compiler --artifacts-dir artifacts/2.0.0 --contracts ERC20Token,DummyERC20Token,ERC721Token,DummyERC721Token,ERC20Proxy,ERC721Proxy,Exchange,Forwarder,MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress,ZRXToken,WETH9,IWallet,IValidator", + "compile:v2-beta-testnet": + "sol-compiler --artifacts-dir artifacts/2.0.0-beta-testnet --contracts AssetProxyOwner,ERC20Proxy,ERC721Proxy,Exchange,Forwarder,IWallet,IValidator,ERC20Token,ERC721Token" }, "config": { "abis": { - "v1": "artifacts/1.0.0/@(DummyERC20Token|TokenTransferProxy_v1|Exchange_v1|TokenRegistry|MultiSigWallet|MultiSigWalletWithTimeLock|MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress|TokenRegistry|ZRXToken|WETH9).json", - "v2": "artifacts/2.0.0/@(ERC20Token|DummyERC20Token|ERC721Token|DummyERC721Token|ERC20Proxy|ERC721Proxy|Exchange|Forwarder|AssetProxyOwner|ZRXToken|WETH9|IWallet|IValidator).json", - "v2BetaTestnet": "artifacts/2.0.0-beta-testnet/@(ERC20Token|ERC721Token|ERC20Proxy|ERC721Proxy|Exchange|Forwarder|AssetProxyOwner|IWallet|IValidator).json" + "v1": + "artifacts/1.0.0/@(DummyERC20Token|TokenTransferProxy_v1|Exchange_v1|TokenRegistry|MultiSigWallet|MultiSigWalletWithTimeLock|MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress|TokenRegistry|ZRXToken|WETH9).json", + "v2": + "artifacts/2.0.0/@(ERC20Token|DummyERC20Token|ERC721Token|DummyERC721Token|ERC20Proxy|ERC721Proxy|Exchange|Forwarder|AssetProxyOwner|ZRXToken|WETH9|IWallet|IValidator).json", + "v2BetaTestnet": + "artifacts/2.0.0-beta-testnet/@(ERC20Token|ERC721Token|ERC20Proxy|ERC721Proxy|Exchange|Forwarder|AssetProxyOwner|IWallet|IValidator).json" } }, "license": "Apache-2.0", -- cgit From d10e2652aeb3bde01fd729ef21b3eb5cafcfb27d Mon Sep 17 00:00:00 2001 From: Amir Bandeali Date: Wed, 8 Aug 2018 11:50:18 -0700 Subject: Revert incrementing memory ptr in dispatchTransferFrom --- .../src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol | 6 +----- .../contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol | 1 - .../contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol | 5 ++--- 3 files changed, 3 insertions(+), 9 deletions(-) diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol index b34903668..e9f882194 100644 --- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol +++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol @@ -159,22 +159,18 @@ contract MixinAssetProxyDispatcher is } /////// Call `assetProxy.transferFrom` using the constructed calldata /////// - let inputLen := sub(cdEnd, cdStart) let success := call( gas, // forward all gas assetProxy, // call address of asset proxy 0, // don't send any ETH cdStart, // pointer to start of input - inputLen, // length of input + sub(cdEnd, cdStart), // length of input cdStart, // write output over input 512 // reserve 512 bytes for output ) if iszero(success) { revert(cdStart, returndatasize()) } - - // Increment free memory pointer - mstore(64, add(cdStart, inputLen)) } } } diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol index b5de1a5de..821d30279 100644 --- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol +++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol @@ -142,7 +142,6 @@ contract MixinTransactions is // Compute hash result := keccak256(memPtr, 128) } - return result; } diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol index f047342b3..4aad37709 100644 --- a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol +++ b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol @@ -204,11 +204,10 @@ contract LibAbiEncoder { } // Set length of calldata - let calldataLen := sub(dataAreaEnd, add(fillOrderCalldata, 0x20)) - mstore(fillOrderCalldata, calldataLen) + mstore(fillOrderCalldata, sub(dataAreaEnd, add(fillOrderCalldata, 0x20))) // Increment free memory pointer - mstore(0x40, add(fillOrderCalldata, add(calldataLen, 0x20))) + mstore(0x40, dataAreaEnd) } return fillOrderCalldata; -- cgit