llvmorg-github-actions[bot] wrote:

<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clangd

@llvm/pr-subscribers-clang-tools-extra

Author: Nathan Ridge (HighCommander4)

<details>
<summary>Changes</summary>

Also fix a bug in index::getSymbolKind where the returned symbol kind would be 
Class for a struct template.

Fixes https://github.com/clangd/clangd/issues/2616

---
Full diff: https://github.com/llvm/llvm-project/pull/212094.diff


5 Files Affected:

- (modified) clang-tools-extra/clangd/CodeComplete.cpp (+1) 
- (modified) clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp (+29-1) 
- (modified) clang/lib/Index/IndexSymbol.cpp (+6-2) 
- (modified) clang/test/Index/index-refs.cpp (+1-1) 
- (modified) clang/test/Index/index-template-specialization.cpp (+3-3) 


``````````diff
diff --git a/clang-tools-extra/clangd/CodeComplete.cpp 
b/clang-tools-extra/clangd/CodeComplete.cpp
index 5f70dfe0dfd71..80091d3a48b33 100644
--- a/clang-tools-extra/clangd/CodeComplete.cpp
+++ b/clang-tools-extra/clangd/CodeComplete.cpp
@@ -643,6 +643,7 @@ struct CodeCompletionBuilder {
     // 'CompletionItemKind::Interface' matches template type aliases.
     if (Completion.Kind == CompletionItemKind::Interface ||
         Completion.Kind == CompletionItemKind::Class ||
+        Completion.Kind == CompletionItemKind::Struct ||
         Completion.Kind == CompletionItemKind::Variable) {
       if (Snippet->front() != '<')
         return *Snippet; // Not an arg snippet?
diff --git a/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp 
b/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
index 5fad022cfe57b..4c1cab7b11e60 100644
--- a/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
+++ b/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
@@ -841,7 +841,7 @@ TEST(CompletionTest, Kinds) {
   EXPECT_THAT(
       Results.Completions,
       UnorderedElementsAre(
-          AllOf(named("complete_class"), kind(CompletionItemKind::Class)),
+          AllOf(named("complete_class"), kind(CompletionItemKind::Struct)),
           AllOf(named("complete_function"), 
kind(CompletionItemKind::Function)),
           AllOf(named("complete_type_alias"),
                 kind(CompletionItemKind::Interface)),
@@ -2996,6 +2996,8 @@ TEST(CompletionTest, ArgumentListsPolicy) {
       template <class T>
       class foo_class{};
       template <class T>
+      struct foo_struct{};
+      template <class T>
       using foo_alias = T**;
       template <class T>
       T foo_var = T{};
@@ -3004,8 +3006,34 @@ TEST(CompletionTest, ArgumentListsPolicy) {
     EXPECT_THAT(
         Results.Completions,
         UnorderedElementsAre(AllOf(named("foo_class"), snippetSuffix("<$0>")),
+                             AllOf(named("foo_struct"), snippetSuffix("<$0>")),
+                             AllOf(named("foo_alias"), snippetSuffix("<$0>")),
+                             AllOf(named("foo_var"), snippetSuffix("<$0>"))));
+  }
+  {
+    const char *Header = R"cpp(
+      template <class T>
+      class foo_class{};
+      template <class T>
+      struct foo_struct{};
+      template <class T>
+      using foo_alias = T**;
+      template <class T>
+      T foo_var = T{};
+    )cpp";
+    auto Index = TestTU::withHeaderCode(Header).index();
+    Opts.Index = Index.get();
+    auto Results = completions(
+        R"cpp(
+      void f() { foo_^ })cpp",
+        {}, Opts);
+    EXPECT_THAT(
+        Results.Completions,
+        UnorderedElementsAre(AllOf(named("foo_class"), snippetSuffix("<$0>")),
+                             AllOf(named("foo_struct"), snippetSuffix("<$0>")),
                              AllOf(named("foo_alias"), snippetSuffix("<$0>")),
                              AllOf(named("foo_var"), snippetSuffix("<$0>"))));
+    Opts.Index = nullptr;
   }
   {
     auto Results = completions(
diff --git a/clang/lib/Index/IndexSymbol.cpp b/clang/lib/Index/IndexSymbol.cpp
index 9b7fee421bdfe..5131b321dedb2 100644
--- a/clang/lib/Index/IndexSymbol.cpp
+++ b/clang/lib/Index/IndexSymbol.cpp
@@ -302,11 +302,15 @@ SymbolInfo index::getSymbolInfo(const Decl *D) {
       Info.Lang = SymbolLanguage::CXX;
       break;
     }
-    case Decl::ClassTemplate:
-      Info.Kind = SymbolKind::Class;
+    case Decl::ClassTemplate: {
+      const ClassTemplateDecl *CTD = cast<ClassTemplateDecl>(D);
+      Info.Kind = CTD->getTemplatedDecl()->getTagKind() == TagTypeKind::Struct
+                      ? SymbolKind::Struct
+                      : SymbolKind::Class;
       Info.Properties |= (SymbolPropertySet)SymbolProperty::Generic;
       Info.Lang = SymbolLanguage::CXX;
       break;
+    }
     case Decl::FunctionTemplate:
       Info.Kind = SymbolKind::Function;
       Info.Properties |= (SymbolPropertySet)SymbolProperty::Generic;
diff --git a/clang/test/Index/index-refs.cpp b/clang/test/Index/index-refs.cpp
index 22eb7532ffad6..edd9049c79d07 100644
--- a/clang/test/Index/index-refs.cpp
+++ b/clang/test/Index/index-refs.cpp
@@ -105,7 +105,7 @@ int ginitlist[] = {EnumVal};
 // CHECK-NEXT: [indexEntityReference]: kind: namespace | name: NS | {{.*}} | 
loc: 44:7
 // CHECK-NEXT: [indexEntityReference]: kind: typedef | name: Foo | {{.*}} | 
loc: 44:11
 
-// CHECK:      [indexDeclaration]: kind: c++-class-template | name: TS | 
{{.*}} | loc: 47:8
+// CHECK:      [indexDeclaration]: kind: struct-template | name: TS | {{.*}} | 
loc: 47:8
 // CHECK-NEXT: [indexDeclaration]: kind: struct-template-partial-spec | name: 
TS | USR: c:@SP>1#T@TS>#t0.0#I | {{.*}} | loc: 50:8
 // CHECK-NEXT: [indexDeclaration]: kind: typedef | name: MyInt | USR: 
c:index-refs.cpp@SP>1#T@TS>#t0.0#I@T@MyInt | {{.*}} | loc: 51:15 | 
semantic-container: [TS:50:8] | lexical-container: [TS:50:8]
 /* when indexing implicit instantiations
diff --git a/clang/test/Index/index-template-specialization.cpp 
b/clang/test/Index/index-template-specialization.cpp
index d50da0f2d63d8..fcc6f3821923c 100644
--- a/clang/test/Index/index-template-specialization.cpp
+++ b/clang/test/Index/index-template-specialization.cpp
@@ -24,6 +24,6 @@ struct D : B<T> {};
 // CHECK-NEXT: [indexEntityReference]: kind: c++-class-template | name: Foo | 
USR: c:@ST>1#T@Foo
 // CHECK-NEXT: [indexEntityReference]: kind: c++-instance-method | name: f | 
USR: c:@ST>1#T@Foo@F@f#t0.0#
 
-// CHECK: [indexDeclaration]: kind: c++-class-template | name: D
-// CHECK-NEXT: <base>: kind: c++-class-template | name: B
-// CHECK-NEXT: [indexEntityReference]: kind: c++-class-template | name: B
+// CHECK: [indexDeclaration]: kind: struct-template | name: D
+// CHECK-NEXT: <base>: kind: struct-template | name: B
+// CHECK-NEXT: [indexEntityReference]: kind: struct-template | name: B

``````````

</details>


https://github.com/llvm/llvm-project/pull/212094
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