[PATCH] D143260: [clangd] Add semantic token for labels

[Christian Kandeler via Phabricator via cfe-commits]

ckandeler created this revision.
ckandeler added a reviewer: sammccall.
Herald added subscribers: 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.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D143260

Files:
  clang-tools-extra/clangd/SemanticHighlighting.cpp
  clang-tools-extra/clangd/SemanticHighlighting.h
  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
@@ -1025,6 +1025,16 @@
         template $Bracket[[<]]C2$Bracket[[<]]int$Bracket[[>]] $TemplateParameter_def[[A]]$Bracket[[>]]
         class $Class_def[[B]] {};
       )cpp",
+      // Labels
+      R"cpp(
+        bool $Function_def[[funcWithGoto]](bool $Parameter_def[[b]]) {
+          if ($Parameter[[b]])
+            goto $Label[[return_true]];
+          return false;
+          $Label_decl[[return_true]]:
+            return true;
+        }
+      )cpp",
       // no crash
       R"cpp(
         struct $Class_def[[Foo]] {
Index: clang-tools-extra/clangd/SemanticHighlighting.h
===================================================================
--- clang-tools-extra/clangd/SemanticHighlighting.h
+++ clang-tools-extra/clangd/SemanticHighlighting.h
@@ -52,6 +52,7 @@
   Modifier,
   Operator,
   Bracket,
+  Label,
 
   // This one is different from the other kinds as it's a line style
   // rather than a token style.
Index: clang-tools-extra/clangd/SemanticHighlighting.cpp
===================================================================
--- clang-tools-extra/clangd/SemanticHighlighting.cpp
+++ clang-tools-extra/clangd/SemanticHighlighting.cpp
@@ -154,6 +154,8 @@
     return HighlightingKind::TemplateParameter;
   if (isa<ConceptDecl>(D))
     return HighlightingKind::Concept;
+  if (isa<LabelDecl>(D))
+    return HighlightingKind::Label;
   if (const auto *UUVD = dyn_cast<UnresolvedUsingValueDecl>(D)) {
     auto Targets = Resolver->resolveUsingValueDecl(UUVD);
     if (!Targets.empty()) {
@@ -1212,6 +1214,8 @@
     return OS << "Operator";
   case HighlightingKind::Bracket:
     return OS << "Bracket";
+  case HighlightingKind::Label:
+    return OS << "Label";
   case HighlightingKind::InactiveCode:
     return OS << "InactiveCode";
   }
@@ -1352,6 +1356,8 @@
     return "operator";
   case HighlightingKind::Bracket:
     return "bracket";
+  case HighlightingKind::Label:
+    return "label";
   case HighlightingKind::InactiveCode:
     return "comment";
   }


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