1 files changed, 0 insertions, 68 deletions
diff --git a/src/utils/abi_decoder.ts b/src/utils/abi_decoder.ts
deleted file mode 100644
index 840ad9be0..000000000
--- a/src/utils/abi_decoder.ts
+++ /dev/null
@@ -1,68 +0,0 @@
-import * as Web3 from 'web3';
-import * as _ from 'lodash';
-import BigNumber from 'bignumber.js';
-import {AbiType, DecodedLogArgs, LogWithDecodedArgs, RawLog, SolidityTypes, ContractEventArgs} from '../types';
-import * as SolidityCoder from 'web3/lib/solidity/coder';
-
-export class AbiDecoder {
-    private savedABIs: Web3.AbiDefinition[] = [];
-    private methodIds: {[signatureHash: string]: Web3.EventAbi} = {};
-    constructor(abiArrays: Web3.AbiDefinition[][]) {
-        _.map(abiArrays, this.addABI.bind(this));
-    }
-    // This method can only decode logs from the 0x & ERC20 smart contracts
-    public tryToDecodeLogOrNoop<ArgsType extends ContractEventArgs>(
-        log: Web3.LogEntry): LogWithDecodedArgs<ArgsType>|RawLog {
-        const methodId = log.topics[0];
-        const event = this.methodIds[methodId];
-        if (_.isUndefined(event)) {
-            return log;
-        }
-        const logData = log.data;
-        const decodedParams: DecodedLogArgs = {};
-        let dataIndex = 0;
-        let topicsIndex = 1;
-
-        const nonIndexedInputs = _.filter(event.inputs, input => !input.indexed);
-        const dataTypes = _.map(nonIndexedInputs, input => input.type);
-        const decodedData = SolidityCoder.decodeParams(dataTypes, logData.slice('0x'.length));
-
-        _.map(event.inputs, (param: Web3.EventParameter) => {
-            // Indexed parameters are stored in topics. Non-indexed ones in decodedData
-            let value = param.indexed ? log.topics[topicsIndex++] : decodedData[dataIndex++];
-            if (param.type === SolidityTypes.Address) {
-                value = this.padZeros(new BigNumber(value).toString(16));
-            } else if (param.type === SolidityTypes.Uint256 ||
-                       param.type === SolidityTypes.Uint8 ||
-                       param.type === SolidityTypes.Uint ) {
-                value = new BigNumber(value);
-            }
-            decodedParams[param.name] = value;
-        });
-
-        return {
-            ...log,
-            event: event.name,
-            args: decodedParams,
-        };
-    }
-    private addABI(abiArray: Web3.AbiDefinition[]): void {
-        _.map(abiArray, (abi: Web3.AbiDefinition) => {
-            if (abi.type === AbiType.Event) {
-                const signature = `${abi.name}(${_.map(abi.inputs, input => input.type).join(',')})`;
-                const signatureHash = new Web3().sha3(signature);
-                this.methodIds[signatureHash] = abi;
-            }
-        });
-        this.savedABIs = this.savedABIs.concat(abiArray);
-    }
-    private padZeros(address: string) {
-        let formatted = address;
-        if (_.startsWith(formatted, '0x')) {
-            formatted = formatted.slice(2);
-        }
-
-        formatted = _.padStart(formatted, 40, '0');
-        return `0x${formatted}`;
-    }
-}