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Diffstat (limited to 'packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts')
-rw-r--r-- | packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts b/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts deleted file mode 100644 index fd39de34b..000000000 --- a/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts +++ /dev/null @@ -1,204 +0,0 @@ -import { schemas } from '@0xproject/json-schemas'; -import { LogWithDecodedArgs } from '@0xproject/types'; -import { AbiDecoder, BigNumber } from '@0xproject/utils'; -import { Web3Wrapper } from '@0xproject/web3-wrapper'; -import * as _ from 'lodash'; - -import { artifacts } from '../artifacts'; -import { BlockRange, EventCallback, IndexedFilterValues, TransactionOpts, ZeroExError } from '../types'; -import { assert } from '../utils/assert'; - -import { ContractWrapper } from './contract_wrapper'; -import { EtherTokenContract, EtherTokenContractEventArgs, EtherTokenEvents } from './generated/ether_token'; -import { TokenWrapper } from './token_wrapper'; - -/** - * This class includes all the functionality related to interacting with a wrapped Ether ERC20 token contract. - * The caller can convert ETH into the equivalent number of wrapped ETH ERC20 tokens and back. - */ -export class EtherTokenWrapper extends ContractWrapper { - private _etherTokenContractsByAddress: { - [address: string]: EtherTokenContract; - } = {}; - private _tokenWrapper: TokenWrapper; - constructor(web3Wrapper: Web3Wrapper, networkId: number, tokenWrapper: TokenWrapper) { - super(web3Wrapper, networkId); - this._tokenWrapper = tokenWrapper; - } - /** - * Deposit ETH into the Wrapped ETH smart contract and issues the equivalent number of wrapped ETH tokens - * to the depositor address. These wrapped ETH tokens can be used in 0x trades and are redeemable for 1-to-1 - * for ETH. - * @param etherTokenAddress EtherToken address you wish to deposit into. - * @param amountInWei Amount of ETH in Wei the caller wishes to deposit. - * @param depositor The hex encoded user Ethereum address that would like to make the deposit. - * @param txOpts Transaction parameters. - * @return Transaction hash. - */ - public async depositAsync( - etherTokenAddress: string, - amountInWei: BigNumber, - depositor: string, - txOpts: TransactionOpts = {}, - ): Promise<string> { - assert.isETHAddressHex('etherTokenAddress', etherTokenAddress); - assert.isValidBaseUnitAmount('amountInWei', amountInWei); - await assert.isSenderAddressAsync('depositor', depositor, this._web3Wrapper); - const normalizedEtherTokenAddress = etherTokenAddress.toLowerCase(); - const normalizedDepositorAddress = depositor.toLowerCase(); - - const ethBalanceInWei = await this._web3Wrapper.getBalanceInWeiAsync(normalizedDepositorAddress); - assert.assert(ethBalanceInWei.gte(amountInWei), ZeroExError.InsufficientEthBalanceForDeposit); - - const wethContract = await this._getEtherTokenContractAsync(normalizedEtherTokenAddress); - const txHash = await wethContract.deposit.sendTransactionAsync({ - from: normalizedDepositorAddress, - value: amountInWei, - gas: txOpts.gasLimit, - gasPrice: txOpts.gasPrice, - }); - return txHash; - } - /** - * Withdraw ETH to the withdrawer's address from the wrapped ETH smart contract in exchange for the - * equivalent number of wrapped ETH tokens. - * @param etherTokenAddress EtherToken address you wish to withdraw from. - * @param amountInWei Amount of ETH in Wei the caller wishes to withdraw. - * @param withdrawer The hex encoded user Ethereum address that would like to make the withdrawal. - * @param txOpts Transaction parameters. - * @return Transaction hash. - */ - public async withdrawAsync( - etherTokenAddress: string, - amountInWei: BigNumber, - withdrawer: string, - txOpts: TransactionOpts = {}, - ): Promise<string> { - assert.isValidBaseUnitAmount('amountInWei', amountInWei); - assert.isETHAddressHex('etherTokenAddress', etherTokenAddress); - await assert.isSenderAddressAsync('withdrawer', withdrawer, this._web3Wrapper); - const normalizedEtherTokenAddress = etherTokenAddress.toLowerCase(); - const normalizedWithdrawerAddress = withdrawer.toLowerCase(); - - const WETHBalanceInBaseUnits = await this._tokenWrapper.getBalanceAsync( - normalizedEtherTokenAddress, - normalizedWithdrawerAddress, - ); - assert.assert(WETHBalanceInBaseUnits.gte(amountInWei), ZeroExError.InsufficientWEthBalanceForWithdrawal); - - const wethContract = await this._getEtherTokenContractAsync(normalizedEtherTokenAddress); - const txHash = await wethContract.withdraw.sendTransactionAsync(amountInWei, { - from: normalizedWithdrawerAddress, - gas: txOpts.gasLimit, - gasPrice: txOpts.gasPrice, - }); - return txHash; - } - /** - * Gets historical logs without creating a subscription - * @param etherTokenAddress An address of the ether token that emitted the logs. - * @param eventName The ether token contract event you would like to subscribe to. - * @param blockRange Block range to get logs from. - * @param indexFilterValues An object where the keys are indexed args returned by the event and - * the value is the value you are interested in. E.g `{_owner: aUserAddressHex}` - * @return Array of logs that match the parameters - */ - public async getLogsAsync<ArgsType extends EtherTokenContractEventArgs>( - etherTokenAddress: string, - eventName: EtherTokenEvents, - blockRange: BlockRange, - indexFilterValues: IndexedFilterValues, - ): Promise<Array<LogWithDecodedArgs<ArgsType>>> { - assert.isETHAddressHex('etherTokenAddress', etherTokenAddress); - const normalizedEtherTokenAddress = etherTokenAddress.toLowerCase(); - assert.doesBelongToStringEnum('eventName', eventName, EtherTokenEvents); - assert.doesConformToSchema('blockRange', blockRange, schemas.blockRangeSchema); - assert.doesConformToSchema('indexFilterValues', indexFilterValues, schemas.indexFilterValuesSchema); - const logs = await this._getLogsAsync<ArgsType>( - normalizedEtherTokenAddress, - eventName, - blockRange, - indexFilterValues, - artifacts.EtherTokenArtifact.abi, - ); - return logs; - } - /** - * Subscribe to an event type emitted by the Token contract. - * @param etherTokenAddress The hex encoded address where the ether token is deployed. - * @param eventName The ether token contract event you would like to subscribe to. - * @param indexFilterValues An object where the keys are indexed args returned by the event and - * the value is the value you are interested in. E.g `{_owner: aUserAddressHex}` - * @param callback Callback that gets called when a log is added/removed - * @return Subscription token used later to unsubscribe - */ - public subscribe<ArgsType extends EtherTokenContractEventArgs>( - etherTokenAddress: string, - eventName: EtherTokenEvents, - indexFilterValues: IndexedFilterValues, - callback: EventCallback<ArgsType>, - ): string { - assert.isETHAddressHex('etherTokenAddress', etherTokenAddress); - const normalizedEtherTokenAddress = etherTokenAddress.toLowerCase(); - assert.doesBelongToStringEnum('eventName', eventName, EtherTokenEvents); - assert.doesConformToSchema('indexFilterValues', indexFilterValues, schemas.indexFilterValuesSchema); - assert.isFunction('callback', callback); - const subscriptionToken = this._subscribe<ArgsType>( - normalizedEtherTokenAddress, - eventName, - indexFilterValues, - artifacts.EtherTokenArtifact.abi, - callback, - ); - return subscriptionToken; - } - /** - * Cancel a subscription - * @param subscriptionToken Subscription token returned by `subscribe()` - */ - public unsubscribe(subscriptionToken: string): void { - this._unsubscribe(subscriptionToken); - } - /** - * Cancels all existing subscriptions - */ - public unsubscribeAll(): void { - super._unsubscribeAll(); - } - /** - * Retrieves the Ethereum address of the EtherToken contract deployed on the network - * that the user-passed web3 provider is connected to. If it's not Kovan, Ropsten, Rinkeby, Mainnet or TestRPC - * (networkId: 50), it will return undefined (e.g a private network). - * @returns The Ethereum address of the EtherToken contract or undefined. - */ - public getContractAddressIfExists(): string | undefined { - const networkSpecificArtifact = artifacts.EtherTokenArtifact.networks[this._networkId]; - const contractAddressIfExists = _.isUndefined(networkSpecificArtifact) - ? undefined - : networkSpecificArtifact.address; - return contractAddressIfExists; - } - private _invalidateContractInstance(): void { - this.unsubscribeAll(); - this._etherTokenContractsByAddress = {}; - } - private async _getEtherTokenContractAsync(etherTokenAddress: string): Promise<EtherTokenContract> { - let etherTokenContract = this._etherTokenContractsByAddress[etherTokenAddress]; - if (!_.isUndefined(etherTokenContract)) { - return etherTokenContract; - } - const [abi, address] = await this._getContractAbiAndAddressFromArtifactsAsync( - artifacts.EtherTokenArtifact, - etherTokenAddress, - ); - const contractInstance = new EtherTokenContract( - abi, - address, - this._web3Wrapper.getProvider(), - this._web3Wrapper.getContractDefaults(), - ); - etherTokenContract = contractInstance; - this._etherTokenContractsByAddress[etherTokenAddress] = etherTokenContract; - return etherTokenContract; - } -} |