[clang-format] Annotate ampamp after new/delete as BinaryOperator

[owenca]

Fixes #78789.

[llvmbot]

@llvm/pr-subscribers-clang-format

Author: Owen Pan (owenca)

Changes

Fixes #78789.

---

Full diff: https://github.com/llvm/llvm-project/pull/89033.diff

2 Files Affected:

• (modified) clang/lib/Format/TokenAnnotator.cpp (+2)
• (modified) clang/unittests/Format/TokenAnnotatorTest.cpp (+10)

diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 628f70417866c3..272d7bbb352daf 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -2912,6 +2912,8 @@ class AnnotatingParser {
       return TT_UnaryOperator;
     if (PrevToken->is(TT_TypeName))
       return TT_PointerOrReference;
+    if (PrevToken->isOneOf(tok::kw_new, tok::kw_delete) && Tok.is(tok::ampamp))
+      return TT_BinaryOperator;
 
     const FormatToken *NextToken = Tok.getNextNonComment();
 
diff --git a/clang/unittests/Format/TokenAnnotatorTest.cpp b/clang/unittests/Format/TokenAnnotatorTest.cpp
index da02ced8c7a949..10e0eca62510a7 100644
--- a/clang/unittests/Format/TokenAnnotatorTest.cpp
+++ b/clang/unittests/Format/TokenAnnotatorTest.cpp
@@ -309,6 +309,16 @@ TEST_F(TokenAnnotatorTest, UnderstandsUsesOfStarAndAmp) {
   EXPECT_TOKEN(Tokens[6], tok::l_paren, TT_OverloadedOperatorLParen);
   EXPECT_TOKEN(Tokens[8], tok::l_brace, TT_FunctionLBrace);
   EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference);
+
+  Tokens = annotate("if (new && num) {\n"
+                    "  new = 1;\n"
+                    "}\n"
+                    "if (!delete && num) {\n"
+                    "  delete = 1;\n"
+                    "}");
+  ASSERT_EQ(Tokens.size(), 26u) << Tokens;
+  EXPECT_TOKEN(Tokens[3], tok::ampamp, TT_BinaryOperator);
+  EXPECT_TOKEN(Tokens[16], tok::ampamp, TT_BinaryOperator);
 }
 
 TEST_F(TokenAnnotatorTest, UnderstandsUsesOfPlusAndMinus) {