SetArgumentReferee action requires the referee class to have copy constructor.

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From user's email:

In order to set an argument by reference I need to create a copy
constructor even though it is not needed by the actual code. I do not
want to add the redundant copy constructor. Am I doing something
wrong?

Here is the issue: Consider:
class ClassToMock {
public:
  virtual void testMethod(SomeClass& a) {
    SomeClass b;
    a = b;
  }
};

class MockedA : public ClassToMock {
public:
  MOCK_METHOD1(testMethod, void(SomeClass&));
};

The following piece of code does not compile:
SomeClass x;
EXPECT_CALL(mock, testMethod(_)).WillOnce(SetArgReferee<0>(x));

But instead compiler throws:
third_party\gmock-1.5.0\include\gmock\gmock-more-actions.h(160) :
error C2664:
'testing::SetArgRefereeActionP<k,value_type>::gmock_Impl<F>::gmock_Impl(val
ue_type)' :
cannot convert parameter 1 from 'const SomeClass' to 'SomeClass'
1>        with
1>        [
1>            k=0,
1>            value_type=SomeClass,
1>            F=void (SomeClass &)
1>        ]
1>        Cannot copy construct class 'SomeClass' due to ambiguous
copy constructors or no available copy constructor

mytestcase.cpp(100) : see reference to function template instantiation
'testing::SetArgRefereeActionP<k,value_type>::operator
testing::Action<F>(void) const<F>' being compiled
1>        with
1>        [
1>            k=0,
1>            value_type=SomeClass,
1>            F=void (SomeClass &)
1>        ]

Original issue reported on code.google.com by vladlosev on 25 May 2010 at 6:16

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Original comment by vladlosev on 26 May 2010 at 5:01

• Changed state: WontFix