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-rw-r--r--lib/Sema/SemaLookup.cpp21
1 files changed, 20 insertions, 1 deletions
diff --git a/lib/Sema/SemaLookup.cpp b/lib/Sema/SemaLookup.cpp
index 67d22ee924..e36642cb7c 100644
--- a/lib/Sema/SemaLookup.cpp
+++ b/lib/Sema/SemaLookup.cpp
@@ -3181,10 +3181,14 @@ DeclarationName Sema::CorrectTypo(LookupResult &Res, Scope *S, CXXScopeSpec *SS,
// Make sure that the user typed at least 3 characters for each correction
// made. Otherwise, we don't even both looking at the results.
+
+ // We also suppress exact matches; those should be handled by a
+ // different mechanism (e.g., one that introduces qualification in
+ // C++).
unsigned ED = Consumer.getBestEditDistance();
if (ED > 0 && Typo->getName().size() / ED < 3) {
// If this was an unqualified lookup, note that no correction was found.
- if (IsUnqualifiedLookup)
+ if (IsUnqualifiedLookup && ED > 0)
(void)UnqualifiedTyposCorrected[Typo];
return DeclarationName();
@@ -3244,6 +3248,14 @@ DeclarationName Sema::CorrectTypo(LookupResult &Res, Scope *S, CXXScopeSpec *SS,
if (Consumer.begin()->second) {
Res.suppressDiagnostics();
Res.clear();
+
+ // Don't correct to a keyword that's the same as the typo; the keyword
+ // wasn't actually in scope.
+ if (ED == 0) {
+ Res.setLookupName(Typo);
+ return DeclarationName();
+ }
+
} else if (!LastLookupWasAccepted) {
// Perform name lookup on this name.
LookupPotentialTypoResult(*this, Res, Name, S, SS, MemberContext,
@@ -3264,6 +3276,13 @@ DeclarationName Sema::CorrectTypo(LookupResult &Res, Scope *S, CXXScopeSpec *SS,
Res.suppressDiagnostics();
Res.clear();
+ // Don't correct to a keyword that's the same as the typo; the keyword
+ // wasn't actually in scope.
+ if (ED == 0) {
+ Res.setLookupName(Typo);
+ return DeclarationName();
+ }
+
// Record the correction for unqualified lookup.
if (IsUnqualifiedLookup)
UnqualifiedTyposCorrected[Typo]