ethers/lib/utils#FunctionFragment TypeScript Examples

The following examples show how to use ethers/lib/utils#FunctionFragment. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: transaction.ts    From tx2uml with MIT License 6 votes vote down vote up 
mapFunctionSelectors2Contracts = (
    contracts: Contracts
): {
    [functionSelector: string]: EthersContract[]
} => {
    // map of function selectors to Ethers Contracts
    const functionSelector2Contract: {
        [functionSelector: string]: EthersContract[]
    } = {}
    // For each contract, get function selectors
    Object.values(contracts).forEach(contract => {
        if (contract.ethersContract) {
            Object.values(contract.ethersContract.interface.fragments)
                .filter(fragment => fragment.type === "function")
                .forEach((fragment: FunctionFragment) => {
                    const sighash =
                        contract.ethersContract.interface.getSighash(fragment)
                    if (!functionSelector2Contract[sighash]) {
                        functionSelector2Contract[sighash] = []
                    }
                    functionSelector2Contract[sighash].push(
                        contract.ethersContract
                    )
                })
        }
    })

    return functionSelector2Contract
}