[PATCH] D70209: [clangd] Expose value of enumerators to Hover API. (not UI yet)

[Sam McCall via Phabricator via cfe-commits]

sammccall created this revision.
sammccall added a reviewer: kadircet.
Herald added subscribers: cfe-commits, usaxena95, arphaman, jkorous, MaskRay, ilya-biryukov.
Herald added a project: clang.

This is part of https://github.com/clangd/clangd/issues/180.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D70209

Files:
  clang-tools-extra/clangd/XRefs.cpp
  clang-tools-extra/clangd/unittests/XRefsTests.cpp


Index: clang-tools-extra/clangd/unittests/XRefsTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/XRefsTests.cpp
+++ clang-tools-extra/clangd/unittests/XRefsTests.cpp
@@ -981,6 +981,16 @@
          HI.NamespaceScope = "";
          HI.Value = "3";
        }},
+      {R"cpp(enum Color { RED, [[GR^EEN]], };)cpp",
+       [](HoverInfo &HI) {
+         HI.Name = "GREEN";
+         HI.NamespaceScope = "";
+         HI.LocalScope = "Color::";
+         HI.Definition = "GREEN";
+         HI.Kind = SymbolKind::EnumMember;
+         HI.Type = "enum Color";
+         HI.Value = "1";
+       }},
       // FIXME: We should use the Decl referenced, even if it comes from an
       // implicit instantiation.
       {R"cpp(
Index: clang-tools-extra/clangd/XRefs.cpp
===================================================================
--- clang-tools-extra/clangd/XRefs.cpp
+++ clang-tools-extra/clangd/XRefs.cpp
@@ -657,6 +657,10 @@
                                Init->getType());
       }
     }
+  } else if (const auto *ECD = dyn_cast<EnumConstantDecl>(D)) {
+    // Dependent enums (e.g. nested in template classes) don't have values yet.
+    if (!ECD->getType()->isDependentType())
+      HI.Value = ECD->getInitVal().toString(10);
   }
 
   HI.Definition = printDefinition(D);


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