[llvm] 88ef274 - [ADT] Apply Rule of Five to StringTable::Iterator (#160815)

[via llvm-commits]

Author: Kazu Hirata
Date: 2025-09-26T08:43:48-07:00
New Revision: 88ef27463e56de7b80df5679c90bf32b81b4e104

URL: https://github.com/llvm/llvm-project/commit/88ef27463e56de7b80df5679c90bf32b81b4e104
DIFF: https://github.com/llvm/llvm-project/commit/88ef27463e56de7b80df5679c90bf32b81b4e104.diff

LOG: [ADT] Apply Rule of Five to StringTable::Iterator (#160815)

StringTable::Iterator has a user-defined copy assignment operator, a
defaulted copy constructor, and a defaulted move constructor.

This patch makes the copy assignment operator defaulted and adds a
defaulted move assignment operator to adhere to the Rule of Five while
making the operators constexpr.

Added: 
    

Modified: 
    llvm/include/llvm/ADT/StringTable.h

Removed: 
    


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diff  --git a/llvm/include/llvm/ADT/StringTable.h b/llvm/include/llvm/ADT/StringTable.h
index 575b3c929e40c..9422a6da1ce8e 100644
--- a/llvm/include/llvm/ADT/StringTable.h
+++ b/llvm/include/llvm/ADT/StringTable.h
@@ -118,12 +118,8 @@ class StringTable {
     constexpr Iterator(const Iterator &RHS) = default;
     constexpr Iterator(Iterator &&RHS) = default;
 
-    Iterator &operator=(const Iterator &RHS) {
-      Table = RHS.Table;
-      O = RHS.O;
-      S = RHS.S;
-      return *this;
-    }
+    constexpr Iterator &operator=(const Iterator &RHS) = default;
+    constexpr Iterator &operator=(Iterator &&RHS) = default;
 
     bool operator==(const Iterator &RHS) const {
       assert(Table == RHS.Table && "Compared iterators for unrelated tables!");