Use enum for query texts

Author: koesie10

extensions/ql-vscode/src/data-extensions-editor/external-api-usage-query.ts

@@ -15,6 +15,7 @@ import { fetchExternalApiQueries } from "./queries";
 import { QueryResultType } from "../pure/new-messages";
 import { join } from "path";
 import { redactableError } from "../pure/errors";
+import { QueryLanguage } from "../common/query-language";
 
 export type RunQueryOptions = {
   cliServer: Pick<CodeQLCliServer, "resolveQlpacks">;
@@ -40,7 +41,7 @@ export async function runQuery({
   // For a reference of what this should do in the future, see the previous implementation in
   // https://github.com/github/vscode-codeql/blob/089d3566ef0bc67d9b7cc66e8fd6740b31c1c0b0/extensions/ql-vscode/src/data-extensions-editor/external-api-usage-query.ts#L33-L72
 
-  const query = fetchExternalApiQueries[databaseItem.language];
+  const query = fetchExternalApiQueries[databaseItem.language as QueryLanguage];
   if (!query) {
     void showAndLogExceptionWithTelemetry(
       redactableError`No external API usage query found for language ${databaseItem.language}`,

extensions/ql-vscode/src/data-extensions-editor/queries/index.ts

@@ -1,6 +1,7 @@
 import { fetchExternalApisQuery as javaFetchExternalApisQuery } from "./java";
 import { Query } from "./query";
+import { QueryLanguage } from "../../common/query-language";
 
-export const fetchExternalApiQueries: Record<string, Query> = {
-  java: javaFetchExternalApisQuery,
+export const fetchExternalApiQueries: Partial<Record<QueryLanguage, Query>> = {
+  [QueryLanguage.Java]: javaFetchExternalApisQuery,
 };