1 #include <simgear/math/SGMath.hxx>
4 #include "NasalHash.hxx"
5 #include "NasalString.hxx"
6 #include <simgear/structure/map.hxx>
8 #include <boost/shared_ptr.hpp>
9 #include <boost/weak_ptr.hpp>
17 std::cerr << "failed: line " << __LINE__ << ": " << #a << std::endl; \
29 naRef member(const nasal::CallContext&) { return naNil(); }
32 std::string getString() const { return ""; }
33 void setString(const std::string&) {}
34 void constVoidFunc() const {}
35 size_t test1Arg(const std::string& str) const { return str.length(); }
36 bool test2Args(const std::string& s, bool c) { return c && s.empty(); }
39 const std::string& getVar() const { return var; }
40 void setVar(const std::string v) { var = v; }
42 unsigned long getThis() const { return (unsigned long)this; }
45 void baseVoidFunc(Base& b) {}
46 void baseConstVoidFunc(const Base& b) {}
47 size_t baseFunc2Args(Base& b, int x, const std::string& s) { return x + s.size(); }
48 std::string testPtr(Base& b) { return b.getString(); }
49 void baseFuncCallContext(const Base&, const nasal::CallContext&) {}
55 int getX() const { return _x; }
56 void setX(int x) { _x = x; }
64 typedef boost::shared_ptr<Base> BasePtr;
65 typedef std::vector<BasePtr> BaseVec;
67 struct DoubleDerived2:
70 const BasePtr& getBase() const{return _base;}
72 BaseVec doSomeBaseWork(const BaseVec& v) { return v; }
75 class SGReferenceBasedClass:
81 typedef boost::shared_ptr<Derived> DerivedPtr;
82 typedef boost::shared_ptr<DoubleDerived> DoubleDerivedPtr;
83 typedef boost::shared_ptr<DoubleDerived2> DoubleDerived2Ptr;
84 typedef SGSharedPtr<SGReferenceBasedClass> SGRefBasedPtr;
86 typedef boost::weak_ptr<Derived> DerivedWeakPtr;
88 naRef derivedFreeMember(Derived&, const nasal::CallContext&) { return naNil(); }
89 naRef f_derivedGetX(naContext c, const Derived& d)
91 return nasal::to_nasal(c, d.getX());
93 naRef f_freeFunction(nasal::CallContext c) { return c.requireArg<naRef>(0); }
95 int main(int argc, char* argv[])
97 naContext c = naNewContext();
100 using namespace nasal;
102 r = to_nasal(c, ENUM_ANOTHER);
103 VERIFY( from_nasal<int>(c, r) == ENUM_ANOTHER );
105 r = to_nasal(c, "Test");
106 VERIFY( strncmp("Test", naStr_data(r), naStr_len(r)) == 0 );
107 VERIFY( from_nasal<std::string>(c, r) == "Test" );
109 r = to_nasal(c, std::string("Test"));
110 VERIFY( strncmp("Test", naStr_data(r), naStr_len(r)) == 0 );
111 VERIFY( from_nasal<std::string>(c, r) == "Test" );
114 VERIFY( naNumValue(r).num == 42 );
115 VERIFY( from_nasal<int>(c, r) == 42 );
117 r = to_nasal(c, 4.2f);
118 VERIFY( naNumValue(r).num == 4.2f );
119 VERIFY( from_nasal<float>(c, r) == 4.2f );
121 float test_data[3] = {0, 4, 2};
122 r = to_nasal(c, test_data);
125 r = to_nasal(c, vec);
126 VERIFY( from_nasal<SGVec2f>(c, r) == vec );
128 std::vector<int> std_vec;
129 r = to_nasal(c, std_vec);
131 r = to_nasal(c, "string");
134 from_nasal<int>(c, r);
136 std::cerr << "failed: Expected bad_nasal_cast to be thrown" << std::endl;
139 catch(nasal::bad_nasal_cast&)
144 hash.set("vec2", vec);
145 hash.set("name", "my-name");
146 hash.set("string", std::string("blub"));
147 hash.set("func", &f_freeFunction);
149 r = to_nasal(c, hash);
150 VERIFY( naIsHash(r) );
152 VERIFY( hash.get<std::string>("name") == "my-name" );
153 VERIFY( naIsString(hash.get("name")) );
155 Hash mod = hash.createHash("mod");
156 mod.set("parent", hash);
159 // 'func' is a C++ function registered to Nasal and now converted back to C++
160 boost::function<int (int)> f = hash.get<int (int)>("func");
164 boost::function<std::string (int)> fs = hash.get<std::string (int)>("func");
166 VERIFY( fs(14) == "14" );
168 typedef boost::function<void (int)> FuncVoidInt;
169 FuncVoidInt fvi = hash.get<FuncVoidInt>("func");
173 typedef boost::function<std::string (const std::string&, int, float)> FuncMultiArg;
174 FuncMultiArg fma = hash.get<FuncMultiArg>("func");
176 VERIFY( fma("test", 3, .5) == "test" );
178 typedef boost::function<naRef (naRef)> naRefMemFunc;
179 naRefMemFunc fmem = hash.get<naRefMemFunc>("func");
181 naRef ret = fmem(hash.get_naRef()),
182 hash_ref = hash.get_naRef();
183 VERIFY( memcmp(&ret, &hash_ref, sizeof(naRef)) == 0 );
185 // Check if nasal::Me gets passed as self/me and remaining arguments are
186 // passed on to function
187 typedef boost::function<int (Me, int)> MeIntFunc;
188 MeIntFunc fmeint = hash.get<MeIntFunc>("func");
189 VERIFY( fmeint(naNil(), 5) == 5 );
191 //----------------------------------------------------------------------------
192 // Test exposing classes to Nasal
193 //----------------------------------------------------------------------------
195 Ghost<BasePtr>::init("BasePtr")
196 .method("member", &Base::member)
197 .method("strlen", &Base::test1Arg)
198 .member("str", &Base::getString, &Base::setString)
199 .method("str_m", &Base::getString)
200 .method("void", &Base::constVoidFunc)
201 .member("var_r", &Base::getVar)
202 .member("var_w", &Base::setVar)
203 .member("var", &Base::getVar, &Base::setVar)
204 .method("void", &baseVoidFunc)
205 .method("void_c", &baseConstVoidFunc)
206 .method("int2args", &baseFunc2Args)
207 .method("bool2args", &Base::test2Args)
208 .method("str_ptr", &testPtr)
209 .method("this", &Base::getThis);
210 Ghost<DerivedPtr>::init("DerivedPtr")
212 .member("x", &Derived::getX, &Derived::setX)
213 .member("x_alternate", &f_derivedGetX)
214 .method("free_fn", &derivedFreeMember)
215 .method("free_member", &derivedFreeMember)
216 .method("baseDoIt", &baseFuncCallContext);
217 Ghost<DoubleDerivedPtr>::init("DoubleDerivedPtr")
218 .bases<DerivedPtr>();
219 Ghost<DoubleDerived2Ptr>::init("DoubleDerived2Ptr")
220 .bases< Ghost<DerivedPtr> >()
221 .member("base", &DoubleDerived2::getBase)
222 .method("doIt", &DoubleDerived2::doSomeBaseWork);
224 Ghost<DerivedWeakPtr>::init("DerivedWeakPtr");
225 Ghost<SGRefBasedPtr>::init("SGRefBasedPtr");
227 VERIFY( Ghost<BasePtr>::isInit() );
228 nasal::to_nasal(c, DoubleDerived2Ptr());
230 BasePtr d( new Derived );
231 naRef derived = to_nasal(c, d);
232 VERIFY( naIsGhost(derived) );
233 VERIFY( std::string("DerivedPtr") == naGhost_type(derived)->name );
235 // Get member function from ghost...
236 naRef thisGetter = naNil();
237 VERIFY( naMember_get(c, derived, to_nasal(c, "this"), &thisGetter) );
238 VERIFY( naIsFunc(thisGetter) );
240 // ...and check if it really gets passed the correct instance
241 typedef boost::function<unsigned long (Me)> MemFunc;
242 MemFunc fGetThis = from_nasal<MemFunc>(c, thisGetter);
244 VERIFY( fGetThis(derived) == (unsigned long)d.get() );
246 BasePtr d2( new DoubleDerived );
247 derived = to_nasal(c, d2);
248 VERIFY( naIsGhost(derived) );
249 VERIFY( std::string("DoubleDerivedPtr") == naGhost_type(derived)->name );
251 BasePtr d3( new DoubleDerived2 );
252 derived = to_nasal(c, d3);
253 VERIFY( naIsGhost(derived) );
254 VERIFY( std::string("DoubleDerived2Ptr") == naGhost_type(derived)->name );
256 SGRefBasedPtr ref_based( new SGReferenceBasedClass );
257 naRef na_ref_based = to_nasal(c, ref_based.get());
258 VERIFY( naIsGhost(na_ref_based) );
259 VERIFY( from_nasal<SGReferenceBasedClass*>(c, na_ref_based)
260 == ref_based.get() );
261 VERIFY( from_nasal<SGRefBasedPtr>(c, na_ref_based) == ref_based );
263 VERIFY( Ghost<BasePtr>::isBaseOf(derived) );
264 VERIFY( Ghost<DerivedPtr>::isBaseOf(derived) );
265 VERIFY( Ghost<DoubleDerived2Ptr>::isBaseOf(derived) );
267 VERIFY( from_nasal<BasePtr>(c, derived) == d3 );
268 VERIFY( from_nasal<BasePtr>(c, derived) != d2 );
269 VERIFY( from_nasal<DerivedPtr>(c, derived)
270 == boost::dynamic_pointer_cast<Derived>(d3) );
271 VERIFY( from_nasal<DoubleDerived2Ptr>(c, derived)
272 == boost::dynamic_pointer_cast<DoubleDerived2>(d3) );
273 VERIFY( !from_nasal<DoubleDerivedPtr>(c, derived) );
275 std::map<std::string, BasePtr> instances;
276 VERIFY( naIsHash(to_nasal(c, instances)) );
278 std::map<std::string, DerivedPtr> instances_d;
279 VERIFY( naIsHash(to_nasal(c, instances_d)) );
281 std::map<std::string, int> int_map;
282 VERIFY( naIsHash(to_nasal(c, int_map)) );
284 std::map<std::string, std::vector<int> > int_vector_map;
285 VERIFY( naIsHash(to_nasal(c, int_vector_map)) );
287 simgear::StringMap dict =
288 simgear::StringMap("hello", "value")
290 naRef na_dict = to_nasal(c, dict);
291 VERIFY( naIsHash(na_dict) );
292 VERIFY( Hash(na_dict, c).get<std::string>("key2") == "value2" );
294 // Check converting to Ghost if using Nasal hashes with actual ghost inside
295 // the hashes parents vector
296 std::vector<naRef> parents;
297 parents.push_back(hash.get_naRef());
298 parents.push_back(derived);
301 obj.set("parents", parents);
302 VERIFY( from_nasal<BasePtr>(c, obj.get_naRef()) == d3 );
304 // Check recursive parents (aka parent-of-parent)
305 std::vector<naRef> parents2;
306 parents2.push_back(obj.get_naRef());
308 derived_obj.set("parents", parents2);
309 VERIFY( from_nasal<BasePtr>(c, derived_obj.get_naRef()) == d3 );
311 std::vector<naRef> nasal_objects;
312 nasal_objects.push_back( Ghost<BasePtr>::create(c, d) );
313 nasal_objects.push_back( Ghost<BasePtr>::create(c, d2) );
314 nasal_objects.push_back( Ghost<BasePtr>::create(c, d3) );
315 naRef obj_vec = to_nasal(c, nasal_objects);
317 std::vector<BasePtr> objects = from_nasal<std::vector<BasePtr> >(c, obj_vec);
318 VERIFY( objects[0] == d );
319 VERIFY( objects[1] == d2 );
320 VERIFY( objects[2] == d3 );
322 //----------------------------------------------------------------------------
323 // Test nasal::CallContext
324 //----------------------------------------------------------------------------
327 int int_vec[] = {1,2,3};
328 std::map<std::string, std::string> map;
330 to_nasal(c, std::string("test-arg")),
332 to_nasal(c, int_vec),
335 CallContext cc(c, sizeof(args)/sizeof(args[0]), args);
336 VERIFY( cc.requireArg<std::string>(0) == "test-arg" );
337 VERIFY( cc.getArg<std::string>(0) == "test-arg" );
338 VERIFY( cc.getArg<std::string>(10) == "" );
339 VERIFY( cc.isString(0) );
340 VERIFY( !cc.isNumeric(0) );
341 VERIFY( !cc.isVector(0) );
342 VERIFY( !cc.isHash(0) );
343 VERIFY( !cc.isGhost(0) );
344 VERIFY( cc.isNumeric(1) );
345 VERIFY( cc.isVector(2) );
346 VERIFY( cc.isHash(3) );
348 naRef args_vec = nasal::to_nasal(c, args);
349 VERIFY( naIsVector(args_vec) );
351 //----------------------------------------------------------------------------
352 // Test nasal::String
353 //----------------------------------------------------------------------------
355 String string( to_nasal(c, "Test") );
356 VERIFY( from_nasal<std::string>(c, string.get_naRef()) == "Test" );
357 VERIFY( string.c_str() == std::string("Test") );
358 VERIFY( string.starts_with(string) );
359 VERIFY( string.starts_with(String(c, "T")) );
360 VERIFY( string.starts_with(String(c, "Te")) );
361 VERIFY( string.starts_with(String(c, "Tes")) );
362 VERIFY( string.starts_with(String(c, "Test")) );
363 VERIFY( !string.starts_with(String(c, "Test1")) );
364 VERIFY( !string.starts_with(String(c, "bb")) );
365 VERIFY( !string.starts_with(String(c, "bbasdasdafasd")) );
366 VERIFY( string.ends_with(String(c, "t")) );
367 VERIFY( string.ends_with(String(c, "st")) );
368 VERIFY( string.ends_with(String(c, "est")) );
369 VERIFY( string.ends_with(String(c, "Test")) );
370 VERIFY( !string.ends_with(String(c, "1Test")) );
371 VERIFY( !string.ends_with(String(c, "abc")) );
372 VERIFY( !string.ends_with(String(c, "estasdasd")) );
373 VERIFY( string.find('e') == 1 );
374 VERIFY( string.find('9') == String::npos );
375 VERIFY( string.find_first_of(String(c, "st")) == 2 );
376 VERIFY( string.find_first_of(String(c, "st"), 3) == 3 );
377 VERIFY( string.find_first_of(String(c, "xyz")) == String::npos );
378 VERIFY( string.find_first_not_of(String(c, "Tst")) == 1 );
379 VERIFY( string.find_first_not_of(String(c, "Tse"), 2) == 3 );
380 VERIFY( string.find_first_not_of(String(c, "abc")) == 0 );
381 VERIFY( string.find_first_not_of(String(c, "abc"), 20) == String::npos );