generic-library/ChaiScript
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Add test for automatic casting down in inheritance

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This commit is contained in:
Jason Turner
2014-03-26 09:14:06 -06:00
parent 7fade8e841
commit 56b036052f
3 changed files with 19 additions and 2 deletions
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2
include/chaiscript/dispatchkit/dynamic_cast_conversion.hpp
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@@ -242,8 +242,6 @@ namespace chaiscript
/// chai.add(chaiscript::base_class<Base, Derived>()); /// chai.add(chaiscript::base_class<Base, Derived>());
/// \endcode /// \endcode
/// ///
/// \todo Move share static type registration code into a mechanism that allows it to be properly
/// shared by all modules
template<typename Base, typename Derived> template<typename Base, typename Derived>
Dynamic_Cast_Conversion base_class() Dynamic_Cast_Conversion base_class()
{ {

10
src/test_module.cpp
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@@ -35,11 +35,17 @@ class TestDerivedType : public TestBaseType
public: public:
virtual ~TestDerivedType() {} virtual ~TestDerivedType() {}
virtual int func() { return 1; } virtual int func() { return 1; }
int derived_only_func() { return 19; }
private: private:
TestDerivedType &operator=(const TestDerivedType &); TestDerivedType &operator=(const TestDerivedType &);
}; };
boost::shared_ptr<TestBaseType> derived_type_factory()
{
return boost::shared_ptr<TestBaseType>(new TestDerivedType());
}
std::string hello_world() std::string hello_world()
{ {
return "Hello World"; return "Hello World";
@@ -81,6 +87,10 @@ CHAISCRIPT_MODULE_EXPORT chaiscript::ModulePtr create_chaiscript_module_test_mo
m->add(chaiscript::base_class<TestBaseType, TestDerivedType>()); m->add(chaiscript::base_class<TestBaseType, TestDerivedType>());
m->add(chaiscript::fun(&TestDerivedType::derived_only_func), "derived_only_func");
m->add(chaiscript::fun(&derived_type_factory), "derived_type_factory");
m->add(chaiscript::fun(&TestBaseType::func), "func"); m->add(chaiscript::fun(&TestBaseType::func), "func");
m->add(chaiscript::fun(&TestBaseType::val), "val"); m->add(chaiscript::fun(&TestBaseType::val), "val");
m->add(chaiscript::fun(&TestBaseType::const_val), "const_val"); m->add(chaiscript::fun(&TestBaseType::const_val), "const_val");

9
unittests/inheritance.chai
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@@ -15,3 +15,12 @@ assert_equal(15, t.const_val);
t.val = 23; t.val = 23;
assert_equal(23, t.val) assert_equal(23, t.val)
// test_derived_factory returns a TestDerivedType contained
// in a shared_ptr<TestBaseType>. This is testing our ability
// to detect that and do the down casting for the user automatically
// at runtime
var d := derived_type_factory();
assert_equal(t.derived_only_func(), 19);
assert_equal(d.derived_only_func(), 19);