[PATCH] D95365: [clangd] Add include-fixer fixit for no_member_template diagnostic.

[Haojian Wu via Phabricator via cfe-commits]

hokein created this revision.
hokein added a reviewer: kadircet.
Herald added subscribers: usaxena95, arphaman.
hokein requested review of this revision.
Herald added subscribers: MaskRay, ilya-biryukov.
Herald added a project: clang.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D95365

Files:
  clang-tools-extra/clangd/IncludeFixer.cpp
  clang-tools-extra/clangd/unittests/DiagnosticsTests.cpp


Index: clang-tools-extra/clangd/unittests/DiagnosticsTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/DiagnosticsTests.cpp
+++ clang-tools-extra/clangd/unittests/DiagnosticsTests.cpp
@@ -855,11 +855,13 @@
 
   ::$global[[Global]] glob;
 }
+using Type = ns::$template[[Foo]]<int>;
   )cpp");
   auto TU = TestTU::withCode(Test.code());
   auto Index = buildIndexWithSymbol(
       {SymbolWithHeader{"ns::X", "unittest:///x.h", "\"x.h\""},
-       SymbolWithHeader{"Global", "unittest:///global.h", "\"global.h\""}});
+       SymbolWithHeader{"Global", "unittest:///global.h", "\"global.h\""},
+       SymbolWithHeader{"ns::Foo", "unittest:///foo.h", "\"foo.h\""}});
   TU.ExternalIndex = Index.get();
 
   EXPECT_THAT(
@@ -884,7 +886,12 @@
                      "no type named 'Global' in the global namespace"),
                 DiagName("typename_nested_not_found"),
                 WithFix(Fix(Test.range("insert"), "#include \"global.h\"\n",
-                            "Add include \"global.h\" for symbol Global")))));
+                            "Add include \"global.h\" for symbol Global"))),
+          AllOf(Diag(Test.range("template"),
+                     "no template named 'Foo' in namespace 'ns'"),
+                DiagName("no_member_template"),
+                WithFix(Fix(Test.range("insert"), "#include \"foo.h\"\n",
+                            "Add include \"foo.h\" for symbol ns::Foo")))));
 }
 
 TEST(IncludeFixerTest, MultipleMatchedSymbols) {
Index: clang-tools-extra/clangd/IncludeFixer.cpp
===================================================================
--- clang-tools-extra/clangd/IncludeFixer.cpp
+++ clang-tools-extra/clangd/IncludeFixer.cpp
@@ -100,6 +100,8 @@
   case diag::err_undeclared_var_use_suggest:
   case diag::err_no_member: // Could be no member in namespace.
   case diag::err_no_member_suggest:
+  case diag::err_no_member_template:
+  case diag::err_no_member_template_suggest:
     if (LastUnresolvedName) {
       // Try to fix unresolved name caused by missing declaration.
       // E.g.


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