Add todo comments

src/mempool/event_watcher.ts

@@ -47,6 +47,7 @@ export class EventWatcher {
         this._lastMempoolEvents = pendingEvents;
     }
     private async _getMempoolEventsAsync(): Promise<Web3.LogEntry[]> {
+        // TODO: Allow users to listen to any number of confirmations deep, not just mempool
         const mempoolFilter = {
             fromBlock: BlockParamLiteral.Pending,
             toBlock: BlockParamLiteral.Pending,
@@ -54,6 +55,7 @@ export class EventWatcher {
         const pendingEvents = await this._web3Wrapper.getLogsAsync(mempoolFilter);
         return pendingEvents;
     }
+    // TODO: Let's emit out own LogEntry type that has property isRemoved rather then removed
     private async _emitDifferencesAsync(logs: Web3.LogEntry[], isRemoved: boolean): Promise<void> {
         for (const log of logs) {
             const logEvent = {

src/utils/abi_decoder.ts

@@ -10,7 +10,7 @@ export class AbiDecoder {
     constructor(abiArrays: Web3.AbiDefinition[][]) {
         _.map(abiArrays, this.addABI.bind(this));
     }
-    // This method can only decode logs from the 0x smart contracts
+    // 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];