Fix crash on zero-argument assignment operator.
Make sure we don't crash when checking whether an assignment operator
without any arguments is a special member. <rdar://problem/14397774>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186137 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp
index 9108095..4a9da79 100644
--- a/lib/AST/DeclCXX.cpp
+++ b/lib/AST/DeclCXX.cpp
@@ -1406,7 +1406,8 @@
// type X, X&, const X&, volatile X& or const volatile X&.
if (/*operator=*/getOverloadedOperator() != OO_Equal ||
/*non-static*/ isStatic() ||
- /*non-template*/getPrimaryTemplate() || getDescribedFunctionTemplate())
+ /*non-template*/getPrimaryTemplate() || getDescribedFunctionTemplate() ||
+ getNumParams() != 1)
return false;
QualType ParamType = getParamDecl(0)->getType();
@@ -1425,7 +1426,8 @@
// non-template member function of class X with exactly one parameter of type
// X&&, const X&&, volatile X&&, or const volatile X&&.
if (getOverloadedOperator() != OO_Equal || isStatic() ||
- getPrimaryTemplate() || getDescribedFunctionTemplate())
+ getPrimaryTemplate() || getDescribedFunctionTemplate() ||
+ getNumParams() != 1)
return false;
QualType ParamType = getParamDecl(0)->getType();