[PATCH] D131175: [clangd] Use the "macro" semantic token for pre-defined identifiers

[Christian Kandeler via Phabricator via cfe-commits]

ckandeler created this revision.
ckandeler added reviewers: sammccall, nridge.
Herald added subscribers: usaxena95, kadircet, arphaman.
Herald added a project: All.
ckandeler requested review of this revision.
Herald added subscribers: cfe-commits, MaskRay, ilya-biryukov.
Herald added a project: clang-tools-extra.

This matches user expectations.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D131175

Files:
  clang-tools-extra/clangd/SemanticHighlighting.cpp
  clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp


Index: clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp
+++ clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp
@@ -841,6 +841,12 @@
             $Function_deprecated[[Foo]]($Parameter[[x]]); 
         }
       )cpp",
+      // Predefined identifiers
+      R"cpp(
+        void $Function_decl[[Foo]]() {
+            const char *$LocalVariable_decl_readonly[[s]] = $Macro[[__func__]];
+        }
+      )cpp",
       // Explicit template specialization
       R"cpp(
         struct $Class_decl[[Base]]{};
Index: clang-tools-extra/clangd/SemanticHighlighting.cpp
===================================================================
--- clang-tools-extra/clangd/SemanticHighlighting.cpp
+++ clang-tools-extra/clangd/SemanticHighlighting.cpp
@@ -542,6 +542,11 @@
     return Base::TraverseConstructorInitializer(Init);
   }
 
+  bool VisitPredefinedExpr(PredefinedExpr *E) {
+    H.addToken(E->getLocation(), HighlightingKind::Macro);
+    return true;
+  }
+
   bool VisitCallExpr(CallExpr *E) {
     // Highlighting parameters passed by non-const reference does not really
     // make sense for literals...


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