[PATCH] D112530: [clangd] AddUsing: Fix support for template specializations.
Adam Czachorowski via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Tue Oct 26 06:12:13 PDT 2021
adamcz created this revision.
Herald added subscribers: usaxena95, kadircet, arphaman.
adamcz requested review of this revision.
Herald added subscribers: cfe-commits, MaskRay, ilya-biryukov.
Herald added a project: clang-tools-extra.
Before this change, we would add "using std::vector<int>" instead of
just "using std::vector;", which would not even compile.
Fixes https://github.com/clangd/clangd/issues/904
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D112530
Files:
clang-tools-extra/clangd/refactor/tweaks/AddUsing.cpp
clang-tools-extra/clangd/unittests/tweaks/AddUsingTests.cpp
Index: clang-tools-extra/clangd/unittests/tweaks/AddUsingTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/tweaks/AddUsingTests.cpp
+++ clang-tools-extra/clangd/unittests/tweaks/AddUsingTests.cpp
@@ -444,6 +444,17 @@
#include "test.hpp"
using one::two::cc;using one::two::ee::ee_one;
cc c;
+)cpp"},
+ // Template (like std::vector).
+ {R"cpp(
+#include "test.hpp"
+one::v^ec<int> foo;
+)cpp",
+ R"cpp(
+#include "test.hpp"
+using one::vec;
+
+vec<int> foo;
)cpp"}};
llvm::StringMap<std::string> EditedFiles;
for (const auto &Case : Cases) {
@@ -461,6 +472,7 @@
};
}
using uu = two::cc;
+template<typename T> struct vec {};
})cpp";
EXPECT_EQ(apply(SubCase, &EditedFiles), Case.ExpectedSource);
}
Index: clang-tools-extra/clangd/refactor/tweaks/AddUsing.cpp
===================================================================
--- clang-tools-extra/clangd/refactor/tweaks/AddUsing.cpp
+++ clang-tools-extra/clangd/refactor/tweaks/AddUsing.cpp
@@ -278,8 +278,14 @@
if (!QualifierToRemove)
return false;
- auto SpelledTokens =
- TB.spelledForExpanded(TB.expandedTokens(E.getSourceRange()));
+ auto NameRange = E.getSourceRange();
+ if (auto T = E.getNamedTypeLoc().getAs<TemplateSpecializationTypeLoc>()) {
+ // Remove the template arguments from the name.
+ NameRange = SourceRange(NameRange.getBegin(),
+ T.getLAngleLoc().getLocWithOffset(-1));
+ }
+
+ auto SpelledTokens = TB.spelledForExpanded(TB.expandedTokens(NameRange));
if (!SpelledTokens)
return false;
auto SpelledRange = syntax::Token::range(SM, SpelledTokens->front(),
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