[clangd] Do not query index for new name completions.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D53192

llvm-svn: 345153

diff --git a/clang-tools-extra/clangd/CodeComplete.cpp b/clang-tools-extra/clangd/CodeComplete.cpp
index 819cd6b..27f57f2 100644 (file)
--- a/clang-tools-extra/clangd/CodeComplete.cpp
+++ b/clang-tools-extra/clangd/CodeComplete.cpp
@@ -625,13 +625,12 @@ bool contextAllowsIndex(enum CodeCompletionContext::Kind K) {
   case CodeCompletionContext::CCC_ObjCProtocolName:
   case CodeCompletionContext::CCC_Namespace:
   case CodeCompletionContext::CCC_Type:
-  case CodeCompletionContext::CCC_Name: // FIXME: why does ns::^ give this?
-  case CodeCompletionContext::CCC_PotentiallyQualifiedName:
   case CodeCompletionContext::CCC_ParenthesizedExpression:
   case CodeCompletionContext::CCC_ObjCInterfaceName:
   case CodeCompletionContext::CCC_ObjCCategoryName:
+  case CodeCompletionContext::CCC_Symbol:
+  case CodeCompletionContext::CCC_SymbolOrNewName:
     return true;
-  case CodeCompletionContext::CCC_Other: // Be conservative.
   case CodeCompletionContext::CCC_OtherWithMacros:
   case CodeCompletionContext::CCC_DotMemberAccess:
   case CodeCompletionContext::CCC_ArrowMemberAccess:
@@ -640,13 +639,16 @@ bool contextAllowsIndex(enum CodeCompletionContext::Kind K) {
   case CodeCompletionContext::CCC_MacroNameUse:
   case CodeCompletionContext::CCC_PreprocessorExpression:
   case CodeCompletionContext::CCC_PreprocessorDirective:
-  case CodeCompletionContext::CCC_NaturalLanguage:
   case CodeCompletionContext::CCC_SelectorName:
   case CodeCompletionContext::CCC_TypeQualifiers:
   case CodeCompletionContext::CCC_ObjCInstanceMessage:
   case CodeCompletionContext::CCC_ObjCClassMessage:
   case CodeCompletionContext::CCC_IncludedFile:
+  // FIXME: Provide identifier based completions for the following contexts:
+  case CodeCompletionContext::CCC_Other: // Be conservative.
+  case CodeCompletionContext::CCC_NaturalLanguage:
   case CodeCompletionContext::CCC_Recovery:
+  case CodeCompletionContext::CCC_NewName:
     return false;
   }
   llvm_unreachable("unknown code completion context");

diff --git a/clang-tools-extra/clangd/index/SymbolCollector.cpp b/clang-tools-extra/clangd/index/SymbolCollector.cpp
index 8fd0083..c0784a4 100644 (file)
--- a/clang-tools-extra/clangd/index/SymbolCollector.cpp
+++ b/clang-tools-extra/clangd/index/SymbolCollector.cpp
@@ -551,7 +551,7 @@ const Symbol *SymbolCollector::addDeclaration(const NamedDecl &ND,
   // We use the primary template, as clang does during code completion.
   CodeCompletionResult SymbolCompletion(&getTemplateOrThis(ND), 0);
   const auto *CCS = SymbolCompletion.CreateCodeCompletionString(
-      *ASTCtx, *PP, CodeCompletionContext::CCC_Name, *CompletionAllocator,
+      *ASTCtx, *PP, CodeCompletionContext::CCC_Symbol, *CompletionAllocator,
       *CompletionTUInfo,
       /*IncludeBriefComments*/ false);
   std::string Signature;

diff --git a/clang-tools-extra/unittests/clangd/CodeCompleteTests.cpp b/clang-tools-extra/unittests/clangd/CodeCompleteTests.cpp
index 7e93d8c..3e60b62 100644 (file)
--- a/clang-tools-extra/unittests/clangd/CodeCompleteTests.cpp
+++ b/clang-tools-extra/unittests/clangd/CodeCompleteTests.cpp
@@ -2178,6 +2178,15 @@ TEST(CompletionTest, NoQualifierIfShadowed) {
                                    AllOf(Qualifier("nx::"), Named("Clangd2"))));
 }
 
+TEST(CompletionTest, NoCompletionsForNewNames) {
+  clangd::CodeCompleteOptions Opts;
+  Opts.AllScopes = true;
+  auto Results = completions(R"cpp(
+      void f() { int n^ }
+    )cpp",
+                             {cls("naber"), cls("nx::naber")}, Opts);
+  EXPECT_THAT(Results.Completions, UnorderedElementsAre());
+}
 } // namespace
 } // namespace clangd
 } // namespace clang