Timerify hasRefsInFile (#1435)

webpro · webpro · commit c6fa5e4771ce · 2026-01-04T14:49:25.000+01:00
diff --git a/packages/knip/src/typescript/find-internal-references.ts b/packages/knip/src/typescript/find-internal-references.ts
@@ -1,4 +1,5 @@
 import ts from 'typescript';
+import { timerify } from '../util/Performance.js';
 import { isIdChar } from '../util/regex.js';
 import type { ExportWithSymbol, MemberWithSymbol } from './get-imports-and-exports.js';
 
@@ -10,7 +11,7 @@ const findInFlow = (flowNode: any, targetSymbol: ts.Symbol): boolean => {
 
 // Find internal references to export item
 // Detect usage of non-types within types (e.g. class or typeof within interface/type) to keep those exported
-export const hasRefsInFile = (
+const hasRefsInFile = (
   item: ExportWithSymbol | MemberWithSymbol,
   sourceFile: ts.SourceFile,
   typeChecker: ts.TypeChecker
@@ -57,3 +58,5 @@ export const hasRefsInFile = (
 
   return false;
 };
+
+export const _hasRefsInFile = timerify(hasRefsInFile);
diff --git a/packages/knip/src/typescript/get-imports-and-exports.ts b/packages/knip/src/typescript/get-imports-and-exports.ts
@@ -25,7 +25,7 @@ import {
   isObjectEnumerationCallExpressionArgument,
   isReferencedInExport,
 } from './ast-helpers.js';
-import { hasRefsInFile } from './find-internal-references.js';
+import { _hasRefsInFile } from './find-internal-references.js';
 import { getImportsFromPragmas } from './pragmas/index.js';
 import type { BoundSourceFile } from './SourceFile.js';
 import getDynamicImportVisitors from './visitors/dynamic-imports/index.js';
@@ -548,12 +548,12 @@ const getImportsAndExports = (
       shouldCountRefs(ignoreExportsUsedInFile, item.type) ||
       (item.symbol?.valueDeclaration && ts.isBindingElement(item.symbol.valueDeclaration))
     ) {
-      item.hasRefsInFile = hasRefsInFile(item, sourceFile, typeChecker);
+      item.hasRefsInFile = _hasRefsInFile(item, sourceFile, typeChecker);
     }
 
     for (const member of item.members) {
       if (item.type === 'enum' || shouldCountRefs(ignoreExportsUsedInFile, member.type)) {
-        member.hasRefsInFile = hasRefsInFile(member, sourceFile, typeChecker);
+        member.hasRefsInFile = _hasRefsInFile(member, sourceFile, typeChecker);
       }
       delete member.symbol;
     }
