Merge pull request #883 from 0xProject/feature/tslint-improvements

New tslint rules

23 files changed, 52 insertions, 48 deletions

diff --git a/packages/website/package.json b/packages/website/package.json
index ef314ba2d..80e49cd70 100644
--- a/packages/website/package.json
+++ b/packages/website/package.json
@@ -97,7 +97,7 @@
         "shx": "^0.2.2",
         "source-map-loader": "^0.1.6",
         "style-loader": "0.13.x",
-        "tslint": "5.8.0",
+        "tslint": "5.11.0",
         "tslint-config-0xproject": "^0.0.2",
         "typescript": "2.7.1",
         "uglifyjs-webpack-plugin": "^1.2.5",
diff --git a/packages/website/ts/blockchain.ts b/packages/website/ts/blockchain.ts
index e8168d975..88461f8a9 100644
--- a/packages/website/ts/blockchain.ts
+++ b/packages/website/ts/blockchain.ts
@@ -83,11 +83,11 @@ export class Blockchain {
     public networkId: number;
     public nodeVersion: string;
     private _contractWrappers: ContractWrappers;
-    private _dispatcher: Dispatcher;
+    private readonly _dispatcher: Dispatcher;
     private _web3Wrapper?: Web3Wrapper;
     private _blockchainWatcher?: BlockchainWatcher;
     private _injectedProviderObservable?: InjectedProviderObservable;
-    private _injectedProviderUpdateHandler: (update: InjectedProviderUpdate) => Promise<void>;
+    private readonly _injectedProviderUpdateHandler: (update: InjectedProviderUpdate) => Promise<void>;
     private _userAddressIfExists: string;
     private _ledgerSubprovider: LedgerSubprovider;
     private _defaultGasPrice: BigNumber;
@@ -125,7 +125,11 @@ export class Blockchain {
         let networkIdIfExists: number;
         if (!_.isUndefined(injectedWeb3IfExists)) {
             try {
-                networkIdIfExists = _.parseInt(await promisify<string>(injectedWeb3IfExists.version.getNetwork)());
+                networkIdIfExists = _.parseInt(
+                    await promisify<string>(
+                        injectedWeb3IfExists.version.getNetwork.bind(injectedWeb3IfExists.version),
+                    )(),
+                );
             } catch (err) {
                 // Ignore error and proceed with networkId undefined
             }
diff --git a/packages/website/ts/blockchain_watcher.ts b/packages/website/ts/blockchain_watcher.ts
index 4b23aa98a..39ed8b08b 100644
--- a/packages/website/ts/blockchain_watcher.ts
+++ b/packages/website/ts/blockchain_watcher.ts
@@ -4,9 +4,9 @@ import * as _ from 'lodash';
 import { Dispatcher } from 'ts/redux/dispatcher';
 
 export class BlockchainWatcher {
-    private _dispatcher: Dispatcher;
-    private _web3Wrapper: Web3Wrapper;
-    private _shouldPollUserAddress: boolean;
+    private readonly _dispatcher: Dispatcher;
+    private readonly _web3Wrapper: Web3Wrapper;
+    private readonly _shouldPollUserAddress: boolean;
     private _watchBalanceIntervalId: NodeJS.Timer;
     private _prevUserEtherBalanceInWei?: BigNumber;
     private _prevUserAddressIfExists: string;
diff --git a/packages/website/ts/components/dialogs/u2f_not_supported_dialog.tsx b/packages/website/ts/components/dialogs/u2f_not_supported_dialog.tsx
index ce86df856..3ebab03ef 100644
--- a/packages/website/ts/components/dialogs/u2f_not_supported_dialog.tsx
+++ b/packages/website/ts/components/dialogs/u2f_not_supported_dialog.tsx
@@ -14,9 +14,9 @@ export const U2fNotSupportedDialog = (props: U2fNotSupportedDialogProps) => {
         <Dialog
             title="U2F Not Supported"
             titleStyle={{ fontWeight: 100 }}
-            actions={[<FlatButton key="u2fNo" label="Ok" onTouchTap={props.onToggleDialog.bind(this)} />]}
+            actions={[<FlatButton key="u2fNo" label="Ok" onTouchTap={props.onToggleDialog} />]}
             open={props.isOpen}
-            onRequestClose={props.onToggleDialog.bind(this)}
+            onRequestClose={props.onToggleDialog}
             autoScrollBodyContent={true}
         >
             <div className="pt2" style={{ color: colors.grey700 }}>
diff --git a/packages/website/ts/components/eth_weth_conversion_button.tsx b/packages/website/ts/components/eth_weth_conversion_button.tsx
index d547a4e6a..b0091a1c1 100644
--- a/packages/website/ts/components/eth_weth_conversion_button.tsx
+++ b/packages/website/ts/components/eth_weth_conversion_button.tsx
@@ -37,7 +37,7 @@ export class EthWethConversionButton extends React.Component<
 > {
     public static defaultProps: Partial<EthWethConversionButtonProps> = {
         isDisabled: false,
-        onConversionSuccessful: _.noop,
+        onConversionSuccessful: _.noop.bind(_),
     };
     public constructor(props: EthWethConversionButtonProps) {
         super(props);
diff --git a/packages/website/ts/components/fill_warning_dialog.tsx b/packages/website/ts/components/fill_warning_dialog.tsx
index 83095b1d3..45c492221 100644
--- a/packages/website/ts/components/fill_warning_dialog.tsx
+++ b/packages/website/ts/components/fill_warning_dialog.tsx
@@ -18,16 +18,16 @@ export const FillWarningDialog = (props: FillWarningDialogProps) => {
                 <FlatButton
                     key="fillWarningCancel"
                     label="Cancel"
-                    onTouchTap={props.onToggleDialog.bind(this, didCancel)}
+                    onTouchTap={() => props.onToggleDialog(didCancel)} // tslint:disable-line:jsx-no-lambda
                 />,
                 <FlatButton
                     key="fillWarningContinue"
                     label="Fill Order"
-                    onTouchTap={props.onToggleDialog.bind(this, !didCancel)}
+                    onTouchTap={() => props.onToggleDialog(!didCancel)} // tslint:disable-line:jsx-no-lambda
                 />,
             ]}
             open={props.isOpen}
-            onRequestClose={props.onToggleDialog.bind(this)}
+            onRequestClose={() => props.onToggleDialog(didCancel)} // tslint:disable-line:jsx-no-lambda
             autoScrollBodyContent={true}
             modal={true}
         >
diff --git a/packages/website/ts/components/generate_order/asset_picker.tsx b/packages/website/ts/components/generate_order/asset_picker.tsx
index 5eada37b6..2dca3483f 100644
--- a/packages/website/ts/components/generate_order/asset_picker.tsx
+++ b/packages/website/ts/components/generate_order/asset_picker.tsx
@@ -46,7 +46,7 @@ export class AssetPicker extends React.Component<AssetPickerProps, AssetPickerSt
     public static defaultProps: Partial<AssetPickerProps> = {
         tokenVisibility: TokenVisibility.ALL,
     };
-    private _dialogConfigsByAssetView: { [assetView: string]: DialogConfigs };
+    private readonly _dialogConfigsByAssetView: { [assetView: string]: DialogConfigs };
     constructor(props: AssetPickerProps) {
         super(props);
         this.state = {
diff --git a/packages/website/ts/components/inputs/allowance_toggle.tsx b/packages/website/ts/components/inputs/allowance_toggle.tsx
index 297617bef..05dce134a 100644
--- a/packages/website/ts/components/inputs/allowance_toggle.tsx
+++ b/packages/website/ts/components/inputs/allowance_toggle.tsx
@@ -57,7 +57,7 @@ const styles: Styles = {
 
 export class AllowanceToggle extends React.Component<AllowanceToggleProps, AllowanceToggleState> {
     public static defaultProps = {
-        onErrorOccurred: _.noop,
+        onErrorOccurred: _.noop.bind(_),
         isDisabled: false,
     };
     constructor(props: AllowanceToggleProps) {
diff --git a/packages/website/ts/components/inputs/balance_bounded_input.tsx b/packages/website/ts/components/inputs/balance_bounded_input.tsx
index f23beb436..eb01e3ea6 100644
--- a/packages/website/ts/components/inputs/balance_bounded_input.tsx
+++ b/packages/website/ts/components/inputs/balance_bounded_input.tsx
@@ -35,7 +35,7 @@ export class BalanceBoundedInput extends React.Component<BalanceBoundedInputProp
         isDisabled: false,
         shouldShowErrs: true,
         hintText: 'amount',
-        onErrorMsgChange: _.noop,
+        onErrorMsgChange: _.noop.bind(_),
         shouldShowUnderline: true,
     };
     constructor(props: BalanceBoundedInputProps) {
@@ -125,7 +125,7 @@ export class BalanceBoundedInput extends React.Component<BalanceBoundedInputProp
         const errMsg = _.isUndefined(this.props.validate) ? undefined : this.props.validate(amount);
         return errMsg;
     }
-    private _setAmountState(amount: string, balance: BigNumber, callback: () => void = _.noop): void {
+    private _setAmountState(amount: string, balance: BigNumber, callback: () => void = _.noop.bind(_)): void {
         const errorMsg = this._validate(amount, balance);
         this.props.onErrorMsgChange(errorMsg);
         this.setState(
diff --git a/packages/website/ts/components/inputs/expiration_input.tsx b/packages/website/ts/components/inputs/expiration_input.tsx
index 79dd2f568..5417ce715 100644
--- a/packages/website/ts/components/inputs/expiration_input.tsx
+++ b/packages/website/ts/components/inputs/expiration_input.tsx
@@ -17,7 +17,7 @@ interface ExpirationInputState {
 }
 
 export class ExpirationInput extends React.Component<ExpirationInputProps, ExpirationInputState> {
-    private _earliestPickableMoment: moment.Moment;
+    private readonly _earliestPickableMoment: moment.Moment;
     constructor(props: ExpirationInputProps) {
         super(props);
         // Set the earliest pickable date to today at 00:00, so users can only pick the current or later dates
diff --git a/packages/website/ts/components/order_json.tsx b/packages/website/ts/components/order_json.tsx
index c2606bd56..cf06f10c8 100644
--- a/packages/website/ts/components/order_json.tsx
+++ b/packages/website/ts/components/order_json.tsx
@@ -127,7 +127,7 @@ export class OrderJSON extends React.Component<OrderJSONProps, OrderJSONState> {
                 href: this.state.shareLink,
                 method: 'share',
             },
-            _.noop,
+            _.noop.bind(_),
         );
     }
     private _shareViaEmailAsync(): void {
diff --git a/packages/website/ts/components/portal/portal.tsx b/packages/website/ts/components/portal/portal.tsx
index ea821d038..1790a9678 100644
--- a/packages/website/ts/components/portal/portal.tsx
+++ b/packages/website/ts/components/portal/portal.tsx
@@ -110,8 +110,8 @@ const SIDE_PADDING = 20;
 
 export class Portal extends React.Component<PortalProps, PortalState> {
     private _blockchain: Blockchain;
-    private _sharedOrderIfExists: Order;
-    private _throttledScreenWidthUpdate: () => void;
+    private readonly _sharedOrderIfExists: Order;
+    private readonly _throttledScreenWidthUpdate: () => void;
     constructor(props: PortalProps) {
         super(props);
         this._sharedOrderIfExists = orderParser.parse(window.location.search);
diff --git a/packages/website/ts/components/ui/menu_item.tsx b/packages/website/ts/components/ui/menu_item.tsx
index 64c0dc49d..0cb4b387c 100644
--- a/packages/website/ts/components/ui/menu_item.tsx
+++ b/packages/website/ts/components/ui/menu_item.tsx
@@ -15,7 +15,7 @@ interface MenuItemState {
 
 export class MenuItem extends React.Component<MenuItemProps, MenuItemState> {
     public static defaultProps: Partial<MenuItemProps> = {
-        onClick: _.noop,
+        onClick: _.noop.bind(_),
         className: '',
     };
     public constructor(props: MenuItemProps) {
diff --git a/packages/website/ts/components/ui/overlay.tsx b/packages/website/ts/components/ui/overlay.tsx
index da26317de..fc7507475 100644
--- a/packages/website/ts/components/ui/overlay.tsx
+++ b/packages/website/ts/components/ui/overlay.tsx
@@ -26,7 +26,7 @@ export const Overlay: React.StatelessComponent<OverlayProps> = props => (
 
 Overlay.defaultProps = {
     style: {},
-    onClick: _.noop,
+    onClick: _.noop.bind(_),
 };
 
 Overlay.displayName = 'Overlay';
diff --git a/packages/website/ts/components/ui/simple_menu.tsx b/packages/website/ts/components/ui/simple_menu.tsx
index dcbc6946b..8a9349c6d 100644
--- a/packages/website/ts/components/ui/simple_menu.tsx
+++ b/packages/website/ts/components/ui/simple_menu.tsx
@@ -41,7 +41,7 @@ export const SimpleMenuItem: React.StatelessComponent<SimpleMenuItemProps> = ({
             <Text
                 fontSize="14px"
                 fontColor={colors.darkGrey}
-                onClick={onClick || _.noop}
+                onClick={onClick || _.noop.bind(_)}
                 hoverColor={colors.mediumBlue}
             >
                 {displayText}
diff --git a/packages/website/ts/components/wallet/wallet.tsx b/packages/website/ts/components/wallet/wallet.tsx
index e462ab3e0..40a8a23ea 100644
--- a/packages/website/ts/components/wallet/wallet.tsx
+++ b/packages/website/ts/components/wallet/wallet.tsx
@@ -204,7 +204,7 @@ export class Wallet extends React.Component<WalletProps, WalletState> {
                 <AccountConnection accountState={accountState} injectedProviderName={this.props.injectedProviderName} />
             </div>
         );
-        const onClick = _.noop;
+        const onClick = _.noop.bind(_);
         const accessory = (
             <DropDown
                 activeNode={
diff --git a/packages/website/ts/local_storage/local_storage.ts b/packages/website/ts/local_storage/local_storage.ts
index 1e3258ce0..13d9ca401 100644
--- a/packages/website/ts/local_storage/local_storage.ts
+++ b/packages/website/ts/local_storage/local_storage.ts
@@ -5,7 +5,7 @@ export const localStorage = {
         return !!window.localStorage;
     },
     getItemIfExists(key: string): string {
-        if (!this.doesExist) {
+        if (!localStorage.doesExist) {
             return undefined;
         }
         const item = window.localStorage.getItem(key);
@@ -15,13 +15,13 @@ export const localStorage = {
         return item;
     },
     setItem(key: string, value: string): void {
-        if (!this.doesExist || _.isUndefined(value)) {
+        if (!localStorage.doesExist || _.isUndefined(value)) {
             return;
         }
         window.localStorage.setItem(key, value);
     },
     removeItem(key: string): void {
-        if (!this.doesExist) {
+        if (!localStorage.doesExist) {
             return;
         }
         window.localStorage.removeItem(key);
@@ -37,7 +37,7 @@ export const localStorage = {
         localStorage.setItem(key, JSON.stringify(value));
     },
     getAllKeys(): string[] {
-        if (!this.doesExist) {
+        if (!localStorage.doesExist) {
             return [];
         }
         return _.keys(window.localStorage);
diff --git a/packages/website/ts/local_storage/tracked_token_storage.ts b/packages/website/ts/local_storage/tracked_token_storage.ts
index f865f8109..b1b579aef 100644
--- a/packages/website/ts/local_storage/tracked_token_storage.ts
+++ b/packages/website/ts/local_storage/tracked_token_storage.ts
@@ -17,7 +17,7 @@ export const trackedTokenStorage = {
         localStorage.setItem(TRACKED_TOKENS_CLEAR_KEY, configs.LAST_LOCAL_STORAGE_TRACKED_TOKEN_CLEARANCE_DATE);
     },
     addTrackedTokenToUser(userAddress: string, networkId: number, token: Token): void {
-        const trackedTokensByUserAddress = this.getTrackedTokensByUserAddress();
+        const trackedTokensByUserAddress = trackedTokenStorage.getTrackedTokensByUserAddress();
         let trackedTokensByNetworkId = trackedTokensByUserAddress[userAddress];
         if (_.isUndefined(trackedTokensByNetworkId)) {
             trackedTokensByNetworkId = {};
@@ -57,7 +57,7 @@ export const trackedTokenStorage = {
         return trackedTokensByAddress;
     },
     removeTrackedToken(userAddress: string, networkId: number, tokenAddress: string): void {
-        const trackedTokensByUserAddress = this.getTrackedTokensByUserAddress();
+        const trackedTokensByUserAddress = trackedTokenStorage.getTrackedTokensByUserAddress();
         const trackedTokensByNetworkId = trackedTokensByUserAddress[userAddress];
         const trackedTokens = trackedTokensByNetworkId[networkId];
         const remainingTrackedTokens = _.filter(trackedTokens, (token: Token) => {
diff --git a/packages/website/ts/local_storage/trade_history_storage.tsx b/packages/website/ts/local_storage/trade_history_storage.tsx
index 2e2f4e64e..a9b042820 100644
--- a/packages/website/ts/local_storage/trade_history_storage.tsx
+++ b/packages/website/ts/local_storage/trade_history_storage.tsx
@@ -27,31 +27,31 @@ export const tradeHistoryStorage = {
         localStorage.setItem(FILL_CLEAR_KEY, configs.LAST_LOCAL_STORAGE_FILL_CLEARANCE_DATE);
     },
     addFillToUser(userAddress: string, networkId: number, fill: Fill): void {
-        const fillsByHash = this.getUserFillsByHash(userAddress, networkId);
-        const fillHash = this._getFillHash(fill);
+        const fillsByHash = tradeHistoryStorage.getUserFillsByHash(userAddress, networkId);
+        const fillHash = tradeHistoryStorage._getFillHash(fill);
         const doesFillExist = !_.isUndefined(fillsByHash[fillHash]);
         if (doesFillExist) {
             return; // noop
         }
         fillsByHash[fillHash] = fill;
         const userFillsJSONString = JSON.stringify(fillsByHash);
-        const userFillsKey = this._getUserFillsKey(userAddress, networkId);
+        const userFillsKey = tradeHistoryStorage._getUserFillsKey(userAddress, networkId);
         localStorage.setItem(userFillsKey, userFillsJSONString);
     },
     removeFillFromUser(userAddress: string, networkId: number, fill: Fill): void {
-        const fillsByHash = this.getUserFillsByHash(userAddress, networkId);
-        const fillHash = this._getFillHash(fill);
+        const fillsByHash = tradeHistoryStorage.getUserFillsByHash(userAddress, networkId);
+        const fillHash = tradeHistoryStorage._getFillHash(fill);
         const doesFillExist = !_.isUndefined(fillsByHash[fillHash]);
         if (!doesFillExist) {
             return; // noop
         }
         delete fillsByHash[fillHash];
         const userFillsJSONString = JSON.stringify(fillsByHash);
-        const userFillsKey = this._getUserFillsKey(userAddress, networkId);
+        const userFillsKey = tradeHistoryStorage._getUserFillsKey(userAddress, networkId);
         localStorage.setItem(userFillsKey, userFillsJSONString);
     },
     getUserFillsByHash(userAddress: string, networkId: number): { [fillHash: string]: Fill } {
-        const userFillsKey = this._getUserFillsKey(userAddress, networkId);
+        const userFillsKey = tradeHistoryStorage._getUserFillsKey(userAddress, networkId);
         const userFillsJSONString = localStorage.getItemIfExists(userFillsKey);
         if (_.isEmpty(userFillsJSONString)) {
             return {};
@@ -66,7 +66,7 @@ export const tradeHistoryStorage = {
         return userFillsByHash;
     },
     getFillsLatestBlock(userAddress: string, networkId: number): number {
-        const userFillsLatestBlockKey = this._getFillsLatestBlockKey(userAddress, networkId);
+        const userFillsLatestBlockKey = tradeHistoryStorage._getFillsLatestBlockKey(userAddress, networkId);
         const blockNumberStr = localStorage.getItemIfExists(userFillsLatestBlockKey);
         if (_.isEmpty(blockNumberStr)) {
             return constants.GENESIS_ORDER_BLOCK_BY_NETWORK_ID[networkId];
@@ -75,7 +75,7 @@ export const tradeHistoryStorage = {
         return blockNumber;
     },
     setFillsLatestBlock(userAddress: string, networkId: number, blockNumber: number): void {
-        const userFillsLatestBlockKey = this._getFillsLatestBlockKey(userAddress, networkId);
+        const userFillsLatestBlockKey = tradeHistoryStorage._getFillsLatestBlockKey(userAddress, networkId);
         localStorage.setItem(userFillsLatestBlockKey, `${blockNumber}`);
     },
     _getUserFillsKey(userAddress: string, networkId: number): string {
diff --git a/packages/website/ts/pages/jobs/jobs.tsx b/packages/website/ts/pages/jobs/jobs.tsx
index 314669ee9..38cefa832 100644
--- a/packages/website/ts/pages/jobs/jobs.tsx
+++ b/packages/website/ts/pages/jobs/jobs.tsx
@@ -33,7 +33,7 @@ export interface JobsState {}
 
 export class Jobs extends React.Component<JobsProps, JobsState> {
     // TODO: consolidate this small screen scaffolding into one place (its being used in portal and docs as well)
-    private _throttledScreenWidthUpdate: () => void;
+    private readonly _throttledScreenWidthUpdate: () => void;
     public constructor(props: JobsProps) {
         super(props);
         this._throttledScreenWidthUpdate = _.throttle(this._updateScreenWidth.bind(this), THROTTLE_TIMEOUT);
diff --git a/packages/website/ts/pages/landing/landing.tsx b/packages/website/ts/pages/landing/landing.tsx
index b2cf4d979..2a51ee3c0 100644
--- a/packages/website/ts/pages/landing/landing.tsx
+++ b/packages/website/ts/pages/landing/landing.tsx
@@ -171,7 +171,7 @@ interface LandingState {
 }
 
 export class Landing extends React.Component<LandingProps, LandingState> {
-    private _throttledScreenWidthUpdate: () => void;
+    private readonly _throttledScreenWidthUpdate: () => void;
     constructor(props: LandingProps) {
         super(props);
         this.state = {
diff --git a/packages/website/ts/redux/dispatcher.ts b/packages/website/ts/redux/dispatcher.ts
index e0ce43ae5..db008d319 100644
--- a/packages/website/ts/redux/dispatcher.ts
+++ b/packages/website/ts/redux/dispatcher.ts
@@ -17,7 +17,7 @@ import {
 } from 'ts/types';
 
 export class Dispatcher {
-    private _dispatch: Dispatch<State>;
+    private readonly _dispatch: Dispatch<State>;
     constructor(dispatch: Dispatch<State>) {
         this._dispatch = dispatch;
     }
diff --git a/packages/website/ts/utils/utils.ts b/packages/website/ts/utils/utils.ts
index 739bb7b66..e656d5963 100644
--- a/packages/website/ts/utils/utils.ts
+++ b/packages/website/ts/utils/utils.ts
@@ -59,7 +59,7 @@ export const utils = {
         return moment.unix(unixTimestampSec.toNumber());
     },
     convertToReadableDateTimeFromUnixTimestamp(unixTimestampSec: BigNumber): string {
-        const m = this.convertToMomentFromUnixTimestamp(unixTimestampSec);
+        const m = utils.convertToMomentFromUnixTimestamp(unixTimestampSec);
         const formattedDate: string = m.format('h:MMa MMMM D YYYY');
         return formattedDate;
     },
@@ -299,12 +299,12 @@ export const utils = {
         const baseUrl = `https://${window.location.hostname}${hasPort ? `:${port}` : ''}`;
         return baseUrl;
     },
-    onPageLoadPromise: new Promise((resolve, _reject) => {
+    onPageLoadPromise: new Promise<void>((resolve, _reject) => {
         if (document.readyState === 'complete') {
             resolve();
             return;
         }
-        window.onload = resolve;
+        window.onload = () => resolve();
     }),
     getProviderType(provider: Provider): Providers | string {
         const constructorName = provider.constructor.name;
@@ -364,7 +364,7 @@ export const utils = {
         return Environments.UNKNOWN;
     },
     shouldShowJobsPage(): boolean {
-        return this.isDevelopment() || this.isStaging() || this.isDogfood();
+        return utils.isDevelopment() || utils.isStaging() || utils.isDogfood();
     },
     getEthToken(tokenByAddress: TokenByAddress): Token {
         return utils.getTokenBySymbol(constants.ETHER_TOKEN_SYMBOL, tokenByAddress);
@@ -379,7 +379,7 @@ export const utils = {
     },
     getTrackedTokens(tokenByAddress: TokenByAddress): Token[] {
         const allTokens = _.values(tokenByAddress);
-        const trackedTokens = _.filter(allTokens, t => this.isTokenTracked(t));
+        const trackedTokens = _.filter(allTokens, t => utils.isTokenTracked(t));
         return trackedTokens;
     },
     getFormattedAmountFromToken(token: Token, tokenState: TokenState): string {