Add strict type-checks that most switch statements cover all cases

src/app/components/Transactions/LogEvent.tsx

@@ -14,6 +14,7 @@ import { AccountLink } from '../Account/AccountLink'
 import { CopyToClipboard } from '../CopyToClipboard'
 import { TransactionLink } from './TransactionLink'
 import { SearchScope } from '../../../types/searchScope'
+import { ExhaustedTypeError } from '../../../types/errors'
 
 const EvmEventParamData: FC<{ scope: SearchScope; param: EvmEventParam }> = ({ scope, param }) => {
   /**
@@ -111,13 +112,14 @@ const DecodedLogEvent: FC<{ scope: SearchScope; event: RuntimeEvent }> = ({ scop
     case RuntimeEventType.accountstransfer:
     case RuntimeEventType.consensus_accountsdeposit:
     case RuntimeEventType.consensus_accountswithdraw:
-    default:
       return (
         <div>
           <div>{eventName}</div>
           <pre>{JSON.stringify(event, null, ' ')}</pre>
         </div>
       )
+    default:
+      throw new ExhaustedTypeError('Unexpected event type', event.type)
   }
 }
 

src/app/pages/HomePage/Graph/Graph/graph-utils.ts

@@ -1,5 +1,6 @@
 import { ScaleToOptions } from 'react-quick-pinch-zoom'
 import { Layer } from '../../../../../oasis-indexer/api'
+import { ExhaustedTypeError } from '../../../../../types/errors'
 
 export abstract class GraphUtils {
   static getScaleTo(layer: Layer, { width, height }: { width?: number; height?: number }): ScaleToOptions {
@@ -33,8 +34,9 @@ export abstract class GraphUtils {
           y: height,
         }
       case Layer.consensus:
-      default:
         return initialValue
+      default:
+        throw new ExhaustedTypeError('Unexpected layer', layer)
     }
   }
 }

src/app/pages/HomePage/Graph/para-time-selector-utils.ts

@@ -1,5 +1,6 @@
 import { ParaTimeSelectorStep } from './types'
 import { Layer } from '../../../../oasis-indexer/api'
+import { ExhaustedTypeError } from '../../../../types/errors'
 
 export abstract class ParaTimeSelectorUtils {
   static getIsGraphTransparent(step: ParaTimeSelectorStep) {
@@ -28,8 +29,11 @@ export abstract class ParaTimeSelectorUtils {
       case Layer.emerald:
       case Layer.cipher:
         return true
-      default:
+      case Layer.consensus:
+      case undefined:
         return false
+      default:
+        throw new ExhaustedTypeError('Unexpected layer', layer)
     }
   }
 }

src/app/pages/SearchResultsPage/useRedirectIfSingleResult.ts

@@ -4,6 +4,7 @@ import { SearchResults } from './hooks'
 import { RouteUtils } from '../../utils/route-utils'
 import { isItemInScope, SearchScope } from '../../../types/searchScope'
 import { Network } from '../../../types/network'
+import { ExhaustedTypeError } from '../../../types/errors'
 
 /** If search only finds one result then redirect to it */
 export function useRedirectIfSingleResult(
@@ -34,11 +35,7 @@ export function useRedirectIfSingleResult(
         redirectTo = RouteUtils.getAccountRoute(item, item.address_eth ?? item.address)
         break
       default:
-        // The conversion of any is necessary here, since we have covered all possible subtype,
-        // and TS is concluding that the only possible remaining type is "never".
-        // However, if we all more result types in the future and forget to add the appropriate case here,
-        // we might hit this, hence the warning.
-        console.log(`Don't know how to redirect to unknown search result type ${(item as any).resultType}`)
+        throw new ExhaustedTypeError('Unexpected result type', item)
     }
   }
 

src/coin-gecko/api.ts

@@ -4,6 +4,7 @@ import { useQuery } from '@tanstack/react-query'
 import { getTickerForNetwork, NativeTicker, Ticker } from '../types/ticker'
 import { Network } from '../types/network'
 import { RouteUtils } from '../app/utils/route-utils'
+import { ExhaustedTypeError } from '../types/errors'
 
 type GetRosePriceParams = {
   ids: string
@@ -68,12 +69,7 @@ export const useTokenPrice = (ticker: NativeTicker): TokenPriceInfo => {
         isFree: true,
       }
     default:
-      console.warn('Checking price of unknown token', ticker)
-      return {
-        isLoading: false,
-        hasUsedCoinGecko: false,
-        isFree: false,
-      }
+      throw new ExhaustedTypeError('Checking price of unknown token', ticker)
   }
 }