From 9dfb0cf981850d1c8f19be26b26ee720efdfdb0a Mon Sep 17 00:00:00 2001
From: Mayukha Vadari <mvadari@gmail.com>
Date: Fri, 29 May 2026 09:44:43 -0400
Subject: [PATCH] NoModifiedUnmodifiableFields -> NoModifiedImmutableFields

---
 include/xrpl/tx/invariants/InvariantCheck.h  | 4 ++--
 src/libxrpl/tx/invariants/InvariantCheck.cpp | 6 +++---
 src/test/app/Invariants_test.cpp             | 4 ++--
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/xrpl/tx/invariants/InvariantCheck.h b/include/xrpl/tx/invariants/InvariantCheck.h
index d4c0154269..5563c4abc0 100644
--- a/include/xrpl/tx/invariants/InvariantCheck.h
+++ b/include/xrpl/tx/invariants/InvariantCheck.h
@@ -360,7 +360,7 @@ public:
  * object is modified. Creation and deletion are ignored.
  *
  */
-class NoModifiedUnmodifiableFields
+class NoModifiedImmutableFields
 {
     // Pair is <before, after>.
     std::set<std::pair<SLE::const_pointer, SLE::const_pointer>> changedEntries_;
@@ -411,7 +411,7 @@ using InvariantChecks = std::tuple<
     ValidPermissionedDEX,
     ValidBookDirectory,
     ValidAMM,
-    NoModifiedUnmodifiableFields,
+    NoModifiedImmutableFields,
     ValidPseudoAccounts,
     ValidLoanBroker,
     ValidLoan,
diff --git a/src/libxrpl/tx/invariants/InvariantCheck.cpp b/src/libxrpl/tx/invariants/InvariantCheck.cpp
index 590e500be4..eea0c214d5 100644
--- a/src/libxrpl/tx/invariants/InvariantCheck.cpp
+++ b/src/libxrpl/tx/invariants/InvariantCheck.cpp
@@ -969,7 +969,7 @@ ValidPseudoAccounts::finalize(
 //------------------------------------------------------------------------------
 
 void
-NoModifiedUnmodifiableFields::visitEntry(
+NoModifiedImmutableFields::visitEntry(
     bool isDelete,
     std::shared_ptr<SLE const> const& before,
     std::shared_ptr<SLE const> const& after)
@@ -1025,7 +1025,7 @@ hasConstantFieldChanged(STObject const& before, STObject const& after, SOTemplat
 }
 
 bool
-NoModifiedUnmodifiableFields::finalize(
+NoModifiedImmutableFields::finalize(
     STTx const& tx,
     TER const,
     XRPAmount const,
@@ -1145,7 +1145,7 @@ NoModifiedUnmodifiableFields::finalize(
 
         XRPL_ASSERT(
             !badOld || enforceOld,
-            "xrpl::NoModifiedUnmodifiableFields::finalize : no bad "
+            "xrpl::NoModifiedImmutableFields::finalize : no bad "
             "changes or enforce invariant");
         if (badOld)
         {
diff --git a/src/test/app/Invariants_test.cpp b/src/test/app/Invariants_test.cpp
index 139ac6a934..900f9685e3 100644
--- a/src/test/app/Invariants_test.cpp
+++ b/src/test/app/Invariants_test.cpp
@@ -2228,7 +2228,7 @@ class Invariants_test : public beast::unit_test::Suite
     };
 
     void
-    testNoModifiedUnmodifiableFields()
+    testNoModifiedImmutableFields()
     {
         testcase("no modified unmodifiable fields");
         using namespace jtx;
@@ -4972,7 +4972,7 @@ public:
         testPermissionedDEX(defaultAmendments() | fixCleanup3_1_3);
         testPermissionedDEX(defaultAmendments() - fixCleanup3_1_3);
         testBookDirectoryExchangeRate();
-        testNoModifiedUnmodifiableFields();
+        testNoModifiedImmutableFields();
         testValidPseudoAccounts();
         testValidLoanBroker();
         testVault();