From 786ddfb79b4f67b26e4ed00d9f00f3ac441cfc4f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mateusz=20Burzy=C5=84ski?= <mateuszburzynski@gmail.com>
Date: Wed, 16 Jul 2025 00:30:11 +0200
Subject: [PATCH] Don't inherit JSDocs from unrelated base properties onto
 constructor parameters with the same names

---
 src/services/services.ts                      |  3 ++-
 ...nheritFromSameNamedPropertyOnParameter1.ts | 21 +++++++++++++++++++
 2 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 tests/cases/fourslash/jsDocDontInheritFromSameNamedPropertyOnParameter1.ts

diff --git a/src/services/services.ts b/src/services/services.ts
index 2df3b75ae6cb7..b17e761efe92e 100644
--- a/src/services/services.ts
+++ b/src/services/services.ts
@@ -121,6 +121,7 @@ import {
     getSnapshotText,
     getSourceFileOfNode,
     getSourceMapper,
+    getSyntacticModifierFlags,
     getTokenPosOfNode,
     getTouchingPropertyName,
     getTouchingToken,
@@ -1051,7 +1052,7 @@ function getDocumentationComment(declarations: readonly Declaration[] | undefine
 }
 
 function findBaseOfDeclaration<T>(checker: TypeChecker, declaration: Declaration, cb: (symbol: Symbol) => T[] | undefined): T[] | undefined {
-    const classOrInterfaceDeclaration = declaration.parent?.kind === SyntaxKind.Constructor ? declaration.parent.parent : declaration.parent;
+    const classOrInterfaceDeclaration = declaration.parent?.kind === SyntaxKind.Constructor && getSyntacticModifierFlags(declaration) & ModifierFlags.AccessibilityModifier ? declaration.parent.parent : declaration.parent;
     if (!classOrInterfaceDeclaration) return;
 
     const isStaticMember = hasStaticModifier(declaration);
diff --git a/tests/cases/fourslash/jsDocDontInheritFromSameNamedPropertyOnParameter1.ts b/tests/cases/fourslash/jsDocDontInheritFromSameNamedPropertyOnParameter1.ts
new file mode 100644
index 0000000000000..93d6eacf50e60
--- /dev/null
+++ b/tests/cases/fourslash/jsDocDontInheritFromSameNamedPropertyOnParameter1.ts
@@ -0,0 +1,21 @@
+///<reference path="fourslash.ts" />
+
+// https://github.com/microsoft/TypeScript/issues/62069
+
+//// class Base {
+////   /**
+////    * This is a description of `someField` in the `Base` class.
+////    *
+////    * @deprecated
+////    */
+////   someField: string = "whatever";
+//// }
+////
+//// class Derived extends Base {
+////   constructor(someField: string) {
+////     super();
+////     console.log(someField/*1*/);
+////   }
+//// }
+
+verify.quickInfoAt("1", "(parameter) someField: string", undefined);