From 34b42e02e6eb6f1ea24bccd8113868d1b3512424 Mon Sep 17 00:00:00 2001
From: robobun <117481402+robobun@users.noreply.github.com>
Date: Sat, 17 Oct 2026 09:23:32 +0000
Subject: [PATCH] Remove dead code from Exception.h, ExceptionOr.h,
 ErrorCode.h, InspectorHTTPServerAgent.cpp, and JSBuffer.cpp

Delete five declarations that nothing references:

- ExceptionOr.h: the free function isolatedCopy(ExceptionOr<void>&&)
- Exception.h: the free function isolatedCopy(Exception&&), whose one
  caller was the function above
- ErrorCode.h: the alias ErrorCodeCache::Field
- InspectorHTTPServerAgent.cpp: the typedefs RouteId and RequestId
- JSBuffer.cpp: the member JSBuffer::typeRange
---
 src/jsc/bindings/ErrorCode.h                  | 1 -
 src/jsc/bindings/Exception.h                  | 7 -------
 src/jsc/bindings/ExceptionOr.h                | 9 ---------
 src/jsc/bindings/InspectorHTTPServerAgent.cpp | 2 --
 src/jsc/bindings/JSBuffer.cpp                 | 2 --
 5 files changed, 21 deletions(-)

diff --git a/src/jsc/bindings/ErrorCode.h b/src/jsc/bindings/ErrorCode.h
index 84761a1c0f77..a94c268d9905 100644
--- a/src/jsc/bindings/ErrorCode.h
+++ b/src/jsc/bindings/ErrorCode.h
@@ -58,7 +58,6 @@ void throwTypeErrorOrOutOfMemory(JSC::JSGlobalObject*, JSC::ThrowScope&, const W
 class ErrorCodeCache : public JSC::JSInternalFieldObjectImpl<NODE_ERROR_COUNT> {
 public:
     using Base = JSInternalFieldObjectImpl<NODE_ERROR_COUNT>;
-    using Field = ErrorCode;
 
     DECLARE_EXPORT_INFO;
 
diff --git a/src/jsc/bindings/Exception.h b/src/jsc/bindings/Exception.h
index c14e1d7ba8b4..ed3a6262696e 100644
--- a/src/jsc/bindings/Exception.h
+++ b/src/jsc/bindings/Exception.h
@@ -56,8 +56,6 @@ class Exception {
     String m_extra;
 };
 
-Exception isolatedCopy(Exception&&);
-
 inline Exception::Exception(ExceptionCode code, String message, String extra)
     : m_code { code }
     , m_message { WTF::move(message) }
@@ -65,9 +63,4 @@ inline Exception::Exception(ExceptionCode code, String message, String extra)
 {
 }
 
-inline Exception isolatedCopy(Exception&& value)
-{
-    return Exception { value.code(), value.releaseMessage().isolatedCopy(), value.releaseExtra().isolatedCopy() };
-}
-
 }
diff --git a/src/jsc/bindings/ExceptionOr.h b/src/jsc/bindings/ExceptionOr.h
index 4f31f30a44d4..e81256f74212 100644
--- a/src/jsc/bindings/ExceptionOr.h
+++ b/src/jsc/bindings/ExceptionOr.h
@@ -89,8 +89,6 @@ template<> class ExceptionOr<void> {
     std::expected<void, Exception> m_value;
 };
 
-ExceptionOr<void> isolatedCopy(ExceptionOr<void>&&);
-
 template<typename ReturnType> inline ExceptionOr<ReturnType>::ExceptionOr(Exception&& exception)
     : m_value(makeUnexpected(WTF::move(exception)))
 {
@@ -186,13 +184,6 @@ inline Exception ExceptionOr<void>::releaseException()
     return WTF::move(m_value.error());
 }
 
-inline ExceptionOr<void> isolatedCopy(ExceptionOr<void>&& value)
-{
-    if (value.hasException())
-        return isolatedCopy(value.releaseException());
-    return {};
-}
-
 template<typename T> inline constexpr bool IsExceptionOr = WTF::IsTemplate<std::decay_t<T>, ExceptionOr>::value;
 
 template<typename T, bool isExceptionOr = IsExceptionOr<T>> struct TypeOrExceptionOrUnderlyingTypeImpl;
diff --git a/src/jsc/bindings/InspectorHTTPServerAgent.cpp b/src/jsc/bindings/InspectorHTTPServerAgent.cpp
index 279715252049..b454c9ec2e0f 100644
--- a/src/jsc/bindings/InspectorHTTPServerAgent.cpp
+++ b/src/jsc/bindings/InspectorHTTPServerAgent.cpp
@@ -141,8 +141,6 @@ extern "C" {
 
 typedef int ServerId;
 typedef int HotReloadId;
-typedef int RouteId;
-typedef int RequestId;
 
 [[ZIG_EXPORT(nothrow)]] void Bun__HTTPServerAgent__notifyServerStarted(Inspector::InspectorHTTPServerAgent* agent, ServerId serverId, HotReloadId hotReloadId, const BunString* address, double startTime, void* serverInstance)
 {
diff --git a/src/jsc/bindings/JSBuffer.cpp b/src/jsc/bindings/JSBuffer.cpp
index c0325e63b350..7c7954f4c329 100644
--- a/src/jsc/bindings/JSBuffer.cpp
+++ b/src/jsc/bindings/JSBuffer.cpp
@@ -2763,8 +2763,6 @@ JSC_ANNOTATE_HOST_FUNCTION(JSBufferConstructorConstruct, JSBufferConstructor::co
 class JSBuffer : public JSC::JSNonFinalObject {
 
     DECLARE_INFO;
-
-    static constexpr JSC::JSTypeRange typeRange = { Uint8ArrayType, Uint8ArrayType };
 };
 
 const ClassInfo JSBuffer::s_info = {