File: not-pre-defined-class-template.h

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#ifndef TEST_INTEROP_CXX_TEMPLATES_INPUTS_NOT_PRE_DEFINED_CLASS_TEMPLATE_H
#define TEST_INTEROP_CXX_TEMPLATES_INPUTS_NOT_PRE_DEFINED_CLASS_TEMPLATE_H

template<class T>
struct MagicWrapper {
  T t;
  int getValuePlusArg(int arg) const { return t.getValue() + arg; }
};

struct IntWrapper {
  int value;
  int getValue() const { return value; }
};

// The ClassTemplateSpecializationDecl node for MagicWrapper<IntWrapper> doesn't have a
// definition in Clang because nothing in this header required the
// instantiation. Therefore, the Swift compiler must trigger instantiation.
typedef MagicWrapper<IntWrapper> MagicallyWrappedIntWithoutDefinition;

#endif // TEST_INTEROP_CXX_TEMPLATES_INPUTS_NOT_PRE_DEFINED_CLASS_TEMPLATE_H