Diagnose multiple initialzation of data-member/base
in the ctor-initializer list. More to come.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74465 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp
index e9a585f..fffa66c 100644
--- a/lib/Sema/SemaDeclCXX.cpp
+++ b/lib/Sema/SemaDeclCXX.cpp
@@ -766,6 +766,24 @@
Diag(ColonLoc, diag::err_only_constructors_take_base_inits);
return;
}
+ llvm::DenseSet<uintptr_t>Members;
+
+ for (unsigned i = 0; i < NumMemInits; i++) {
+ CXXBaseOrMemberInitializer *Member =
+ static_cast<CXXBaseOrMemberInitializer*>(MemInits[i]);
+ if (Members.count(Member->getBaseOrMember()) == 0)
+ Members.insert(Member->getBaseOrMember());
+ else {
+ if (FieldDecl *Field = Member->getMember())
+ Diag(ColonLoc, diag::error_multiple_mem_initialization)
+ << Field->getNameAsString();
+ else if (Type *BaseClass = Member->getBaseClass())
+ Diag(ColonLoc, diag::error_multiple_base_initialization)
+ << BaseClass->getDesugaredType(true);
+ else
+ assert(false && "ActOnMemInitializers - neither field or base");
+ }
+ }
}
namespace {