[PATCH] D58341: [clangd] Index UsingDecls

[Kadir Cetinkaya via Phabricator via cfe-commits]

kadircet updated this revision to Diff 188170.
kadircet marked 2 inline comments as done.
kadircet added a comment.

- Address comments


Repository:
  rCTE Clang Tools Extra

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D58341/new/

https://reviews.llvm.org/D58341

Files:
  unittests/clangd/CodeCompleteTests.cpp
  unittests/clangd/SymbolCollectorTests.cpp
  unittests/clangd/SymbolInfoTests.cpp


Index: unittests/clangd/SymbolInfoTests.cpp
===================================================================
--- unittests/clangd/SymbolInfoTests.cpp
+++ unittests/clangd/SymbolInfoTests.cpp
@@ -167,7 +167,8 @@
         )cpp",
               {CreateExpectedSymbolDetails("foo", "", "c:@F at foo#"),
                CreateExpectedSymbolDetails("foo", "", "c:@F at foo#b#"),
-               CreateExpectedSymbolDetails("foo", "", "c:@F at foo#I#")}},
+               CreateExpectedSymbolDetails("foo", "", "c:@F at foo#I#"),
+               CreateExpectedSymbolDetails("foo", "bar::", "c:@N at bar@UD at foo")}},
           {
               R"cpp( // Multiple symbols returned - implicit conversion
           struct foo {};
Index: unittests/clangd/SymbolCollectorTests.cpp
===================================================================
--- unittests/clangd/SymbolCollectorTests.cpp
+++ unittests/clangd/SymbolCollectorTests.cpp
@@ -325,9 +325,6 @@
     // Namespace alias
     namespace baz = bar;
 
-    // FIXME: using declaration is not supported as the IndexAction will ignore
-    // implicit declarations (the implicit using shadow declaration) by default,
-    // and there is no way to customize this behavior at the moment.
     using bar::v2;
     } // namespace foo
   )";
@@ -354,6 +351,7 @@
                    AllOf(QName("foo::int32_t"), ForCodeCompletion(true)),
                    AllOf(QName("foo::v1"), ForCodeCompletion(true)),
                    AllOf(QName("foo::bar::v2"), ForCodeCompletion(true)),
+                   AllOf(QName("foo::v2"), ForCodeCompletion(true)),
                    AllOf(QName("foo::baz"), ForCodeCompletion(true))}));
 }
 
@@ -1118,6 +1116,16 @@
                   AllOf(QName("Public"), Not(ImplementationDetail()))));
 }
 
+TEST_F(SymbolCollectorTest, UsingDecl) {
+  const char *Header = R"(
+  void foo();
+  namespace std {
+    using ::foo;
+  })";
+  runSymbolCollector(Header, /**/ "");
+  EXPECT_THAT(Symbols, Contains(QName("std::foo")));
+}
+
 } // namespace
 } // namespace clangd
 } // namespace clang
Index: unittests/clangd/CodeCompleteTests.cpp
===================================================================
--- unittests/clangd/CodeCompleteTests.cpp
+++ unittests/clangd/CodeCompleteTests.cpp
@@ -17,6 +17,7 @@
 #include "SyncAPI.h"
 #include "TestFS.h"
 #include "TestIndex.h"
+#include "TestTU.h"
 #include "index/MemIndex.h"
 #include "clang/Sema/CodeCompleteConsumer.h"
 #include "llvm/Support/Error.h"
@@ -2314,6 +2315,26 @@
   EXPECT_THAT(R.Completions, ElementsAre(Named("loopVar")));
 }
 
+TEST(CompletionTest, UsingDecl) {
+  const char *Header(R"cpp(
+    void foo(int);
+    namespace std {
+      using ::foo;
+    })cpp");
+  const char *Source(R"cpp(
+    void bar() {
+      std::^;
+    })cpp");
+  auto Index = TestTU::withHeaderCode(Header).index();
+  clangd::CodeCompleteOptions Opts;
+  Opts.Index = Index.get();
+  Opts.AllScopes = true;
+  auto R = completions(Source, {}, Opts);
+  EXPECT_THAT(R.Completions,
+              ElementsAre(AllOf(Scope("std::"), Named("foo"),
+                                Kind(CompletionItemKind::Reference))));
+}
+
 } // namespace
 } // namespace clangd
 } // namespace clang


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