[PATCH] D155358: [clang-format] Correctly annotate overloaded operator function name

[Owen Pan via Phabricator via cfe-commits]

owenpan created this revision.
Herald added projects: All, clang, clang-format.
Herald added a subscriber: cfe-commits.
Herald added reviewers: rymiel, HazardyKnusperkeks, MyDeveloperDay.
owenpan requested review of this revision.

The `operator` keyword preceded by a template closer should be annotated as 
`TT_FunctionDeclarationName`.

Fixes https://github.com/llvm/llvm-project/issues/63879.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D155358

Files:
  clang/lib/Format/TokenAnnotator.cpp
  clang/unittests/Format/TokenAnnotatorTest.cpp


Index: clang/unittests/Format/TokenAnnotatorTest.cpp
===================================================================
--- clang/unittests/Format/TokenAnnotatorTest.cpp
+++ clang/unittests/Format/TokenAnnotatorTest.cpp
@@ -717,6 +717,16 @@
   EXPECT_TOKEN(Tokens[9], tok::plus, TT_OverloadedOperator);
   EXPECT_TOKEN(Tokens[10], tok::l_paren, TT_OverloadedOperatorLParen);
   EXPECT_TOKEN(Tokens[12], tok::star, TT_BinaryOperator);
+
+  Tokens = annotate("std::vector<Foo> operator()(Foo &foo);");
+  ASSERT_EQ(Tokens.size(), 16u) << Tokens;
+  EXPECT_TOKEN(Tokens[3], tok::less, TT_TemplateOpener);
+  EXPECT_TOKEN(Tokens[5], tok::greater, TT_TemplateCloser);
+  EXPECT_TOKEN(Tokens[6], tok::kw_operator, TT_FunctionDeclarationName);
+  EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_OverloadedOperator);
+  EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_OverloadedOperator);
+  EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_OverloadedOperatorLParen);
+  EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference);
 }
 
 TEST_F(TokenAnnotatorTest, OverloadedOperatorInTemplate) {
Index: clang/lib/Format/TokenAnnotator.cpp
===================================================================
--- clang/lib/Format/TokenAnnotator.cpp
+++ clang/lib/Format/TokenAnnotator.cpp
@@ -3175,7 +3175,7 @@
         !Previous->isOneOf(tok::kw_return, tok::kw_co_return)) {
       return true;
     }
-    if (!Previous->isOneOf(tok::star, tok::amp, tok::ampamp))
+    if (!Previous->isOneOf(tok::star, tok::amp, tok::ampamp, 
TT_TemplateCloser))
       return false;
     Next = skipOperatorName(Next);
   } else {



Index: clang/unittests/Format/TokenAnnotatorTest.cpp
===================================================================
--- clang/unittests/Format/TokenAnnotatorTest.cpp
+++ clang/unittests/Format/TokenAnnotatorTest.cpp
@@ -717,6 +717,16 @@
   EXPECT_TOKEN(Tokens[9], tok::plus, TT_OverloadedOperator);
   EXPECT_TOKEN(Tokens[10], tok::l_paren, TT_OverloadedOperatorLParen);
   EXPECT_TOKEN(Tokens[12], tok::star, TT_BinaryOperator);
+
+  Tokens = annotate("std::vector<Foo> operator()(Foo &foo);");
+  ASSERT_EQ(Tokens.size(), 16u) << Tokens;
+  EXPECT_TOKEN(Tokens[3], tok::less, TT_TemplateOpener);
+  EXPECT_TOKEN(Tokens[5], tok::greater, TT_TemplateCloser);
+  EXPECT_TOKEN(Tokens[6], tok::kw_operator, TT_FunctionDeclarationName);
+  EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_OverloadedOperator);
+  EXPECT_TOKEN(Tokens[8], tok::r_paren, TT_OverloadedOperator);
+  EXPECT_TOKEN(Tokens[9], tok::l_paren, TT_OverloadedOperatorLParen);
+  EXPECT_TOKEN(Tokens[11], tok::amp, TT_PointerOrReference);
 }
 
 TEST_F(TokenAnnotatorTest, OverloadedOperatorInTemplate) {
Index: clang/lib/Format/TokenAnnotator.cpp
===================================================================
--- clang/lib/Format/TokenAnnotator.cpp
+++ clang/lib/Format/TokenAnnotator.cpp
@@ -3175,7 +3175,7 @@
         !Previous->isOneOf(tok::kw_return, tok::kw_co_return)) {
       return true;
     }
-    if (!Previous->isOneOf(tok::star, tok::amp, tok::ampamp))
+    if (!Previous->isOneOf(tok::star, tok::amp, tok::ampamp, TT_TemplateCloser))
       return false;
     Next = skipOperatorName(Next);
   } else {

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