Address all unchecked indexed access within resources

resources/benchmark.ts

@@ -270,9 +270,9 @@ function runBenchmark(
   benchmark: string,
   benchmarkProjects: ReadonlyArray<BenchmarkProject>,
 ) {
-  const results = [];
-  for (let i = 0; i < benchmarkProjects.length; ++i) {
-    const { revision, projectPath } = benchmarkProjects[i];
+  const results: Array<BenchmarkComputedStats> = [];
+
+  benchmarkProjects.forEach(({ revision, projectPath }, i) => {
     const modulePath = path.join(projectPath, benchmark);
 
     if (i === 0) {
@@ -288,7 +288,8 @@ function runBenchmark(
     } catch (error) {
       console.log('  ' + revision + ': ' + red(error.message));
     }
-  }
+  });
+
   console.log('\n');
 
   beautifyBenchmark(results);

resources/build-npm.ts

@@ -69,6 +69,7 @@ function buildPackage(outDir: string, isESMOnly: boolean): void {
     const splittedTag = preReleaseTag.split('.');
     // Note: `experimental-*` take precedence over `alpha`, `beta` or `rc`.
     const versionTag = splittedTag[2] ?? splittedTag[0];
+    assert(versionTag);
     assert(
       ['alpha', 'beta', 'rc'].includes(versionTag) ||
         versionTag.startsWith('experimental-'),

resources/diff-npm-package.ts

@@ -24,6 +24,9 @@ if (args.length < 2) {
   );
 }
 
+assert(fromRevision);
+assert(toRevision);
+
 console.log(`📦 Building NPM package for ${fromRevision}...`);
 const fromPackage = prepareNPMPackage(fromRevision);
 

resources/gen-changelog.ts

@@ -1,3 +1,5 @@
+import assert from 'node:assert';
+
 import { git, readPackageJSON } from './utils.js';
 
 const packageJSON = readPackageJSON();
@@ -88,11 +90,13 @@ async function genChangeLog(): Promise<string> {
     }
 
     const label = labels[0];
+    assert(label);
     if (!labelsConfig[label]) {
       throw new Error(`Unknown label: ${label}. See ${pr.url}`);
     }
-    byLabel[label] ??= [];
-    byLabel[label].push(pr);
+    const prByLabel = byLabel[label] ?? [];
+    byLabel[label] = prByLabel;
+    prByLabel.push(pr);
     committersByLogin[pr.author.login] = pr.author;
   }
 
@@ -285,7 +289,11 @@ function commitInfoToPR(commit: CommitInfo): number {
     );
   }
 
-  return associatedPRs[0].number;
+  const pr = associatedPRs[0];
+
+  assert(pr);
+
+  return pr.number;
 }
 
 async function getPRsInfo(

resources/inline-invariant.ts

@@ -1,3 +1,5 @@
+import assert from 'node:assert';
+
 import ts from 'typescript';
 
 /**
@@ -29,6 +31,8 @@ export function inlineInvariant(context: ts.TransformationContext) {
         if (funcName === 'invariant' || funcName === 'devAssert') {
           const [condition, ...otherArgs] = args;
 
+          assert(condition);
+
           return factory.createBinaryExpression(
             factory.createParenthesizedExpression(condition),
             ts.SyntaxKind.BarBarToken,

resources/utils.ts

@@ -149,11 +149,12 @@ export function showDirStats(dirPath: string): void {
     const ext = name.split('.').slice(1).join('.');
     const filetype = ext ? '*.' + ext : name;
 
-    fileTypes[filetype] ??= { filepaths: [], size: 0 };
+    const dirStats = fileTypes[filetype] ?? { filepaths: [], size: 0 };
+    fileTypes[filetype] = dirStats;
 
     totalSize += stats.size;
-    fileTypes[filetype].size += stats.size;
-    fileTypes[filetype].filepaths.push(filepath);
+    dirStats.size += stats.size;
+    dirStats.filepaths.push(filepath);
   }
 
   const stats: Array<[string, number]> = [];
@@ -163,13 +164,14 @@ export function showDirStats(dirPath: string): void {
     if (numFiles > 1) {
       stats.push([filetype + ' x' + numFiles, typeStats.size]);
     } else {
+      assert(typeStats.filepaths[0]);
       const relativePath = path.relative(dirPath, typeStats.filepaths[0]);
       stats.push([relativePath, typeStats.size]);
     }
   }
   stats.sort((a, b) => b[1] - a[1]);
 
-  const prettyStats = stats.map(([type, size]) => [
+  const prettyStats = stats.map<[string, string]>(([type, size]) => [
     type,
     (size / 1024).toFixed(2) + ' KB',
   ]);