[PATCH] D57944: [clangd] Fix an assertion in TypoCorrection.
Eric Liu via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Fri Feb 8 04:34:36 PST 2019
ioeric created this revision.
ioeric added reviewers: sammccall, hokein.
Herald added subscribers: cfe-commits, kadircet, arphaman, jkorous, MaskRay, ilya-biryukov.
Herald added a project: clang.
https://github.com/clangd/clangd/issues/7
Repository:
rCTE Clang Tools Extra
https://reviews.llvm.org/D57944
Files:
clangd/IncludeFixer.cpp
unittests/clangd/DiagnosticsTests.cpp
Index: unittests/clangd/DiagnosticsTests.cpp
===================================================================
--- unittests/clangd/DiagnosticsTests.cpp
+++ unittests/clangd/DiagnosticsTests.cpp
@@ -423,6 +423,21 @@
"Add include \"b.h\" for symbol na::nb::X")))));
}
+TEST(IncludeFixerTest, NoCrashMemebrAccess) {
+ Annotations Test(R"cpp(
+ struct X { int xyz; };
+ void g() { X x; x.$[[xy]] }
+ )cpp");
+ auto TU = TestTU::withCode(Test.code());
+ auto Index = buildIndexWithSymbol(
+ SymbolWithHeader{"na::X", "unittest:///a.h", "\"a.h\""});
+ TU.ExternalIndex = Index.get();
+
+ EXPECT_THAT(
+ TU.build().getDiagnostics(),
+ UnorderedElementsAre(Diag(Test.range(), "no member named 'xy' in 'X'")));
+}
+
} // namespace
} // namespace clangd
} // namespace clang
Index: clangd/IncludeFixer.cpp
===================================================================
--- clangd/IncludeFixer.cpp
+++ clangd/IncludeFixer.cpp
@@ -192,8 +192,6 @@
if (!SemaPtr->SourceMgr.isWrittenInMainFile(Typo.getLoc()))
return clang::TypoCorrection();
- assert(S && "Enclosing scope must be set.");
-
UnresolvedName Unresolved;
Unresolved.Name = Typo.getAsString();
Unresolved.Loc = Typo.getBeginLoc();
@@ -228,6 +226,8 @@
return TypoCorrection();
}
}
+ if (!SpecifiedScope && !S) // Give up if no scope available.
+ return TypoCorrection();
auto *Sem = SemaPtr; // Avoid capturing `this`.
Unresolved.GetScopes = [Sem, SpecifiedScope, S, LookupKind]() {
@@ -235,6 +235,7 @@
if (SpecifiedScope) {
Scopes.push_back(*SpecifiedScope);
} else {
+ assert(S);
// No scope qualifier is specified. Collect all accessible scopes in the
// context.
VisitedContextCollector Collector;
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