Implement the rest of C++ [over.call.object], which permits the object
being called to be converted to a reference-to-function,
pointer-to-function, or reference-to-pointer-to-function. This is done
through "surrogate" candidate functions that model the conversions
from the object to the function (reference/pointer) and the
conversions in the arguments.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59674 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaOverload.h b/lib/Sema/SemaOverload.h
index 24b796b..13be00a 100644
--- a/lib/Sema/SemaOverload.h
+++ b/lib/Sema/SemaOverload.h
@@ -199,15 +199,21 @@
/// OverloadCandidate - A single candidate in an overload set (C++ 13.3).
struct OverloadCandidate {
/// Function - The actual function that this candidate
- /// represents. When NULL, this is a built-in candidate.
+ /// represents. When NULL, this is a built-in candidate
+ /// (C++ [over.oper]) or a surrogate for a conversion to a
+ /// function pointer or reference (C++ [over.call.object]).
FunctionDecl *Function;
-
+
// BuiltinTypes - Provides the return and parameter types of a
// built-in overload candidate. Only valid when Function is NULL.
struct {
QualType ResultTy;
QualType ParamTypes[3];
} BuiltinTypes;
+
+ /// Surrogate - The conversion function for which this candidate
+ /// is a surrogate, but only if IsSurrogate is true.
+ CXXConversionDecl *Surrogate;
/// Conversions - The conversion sequences used to convert the
/// function arguments to the function parameters.
@@ -216,6 +222,11 @@
/// Viable - True to indicate that this overload candidate is viable.
bool Viable;
+ /// IsSurrogate - True to indicate that this candidate is a
+ /// surrogate for a conversion to a function pointer or reference
+ /// (C++ [over.call.object]).
+ bool IsSurrogate;
+
/// FinalConversion - For a conversion function (where Function is
/// a CXXConversionDecl), the standard conversion that occurs
/// after the call to the overload candidate to convert the result