| require("import") -- the import fn |
| import("cpp_basic") -- import code |
| cb=cpp_basic -- renaming import |
| |
| -- catch "undefined" global variables |
| local env = _ENV -- Lua 5.2 |
| if not env then env = getfenv () end -- Lua 5.1 |
| setmetatable(env, {__index=function (t,i) error("undefined global variable `"..i.."'",2) end}) |
| |
| f=cb.Foo(4) |
| assert(f.num==4) |
| f.num=-17 |
| assert(f.num==-17) |
| |
| b=cb.Bar() |
| |
| b.fptr=f |
| assert(b.fptr.num==-17) |
| assert(b:test(-3,b.fptr)==-5) |
| f.num=12 |
| assert(b.fptr.num==12) |
| |
| assert(b.fref.num==-4) |
| assert(b:test(12,b.fref)==23) |
| |
| -- references don't take ownership, so if we didn't define this here it might get garbage collected |
| f2=cb.Foo(23) |
| b.fref=f2 |
| assert(b.fref.num==23) |
| assert(b:test(-3,b.fref)==35) |
| |
| assert(b.fval.num==15) |
| assert(b:test(3,b.fval)==33) |
| b.fval=cb.Foo(-15) -- this is safe as it is copied into the C++ |
| assert(b.fval.num==-15) |
| assert(b:test(3,b.fval)==-27) |
| |
| f3=b:testFoo(12,b.fref) |
| assert(f3.num==32) |
| |
| -- now test global |
| f4=cb.Foo(6) |
| cb.Bar_global_fptr=f4 |
| assert(cb.Bar_global_fptr.num==6) |
| assert(cb.Bar.global_fptr.num==6) |
| f4.num=8 |
| assert(cb.Bar_global_fptr.num==8) |
| assert(cb.Bar.global_fptr.num==8) |
| |
| assert(cb.Bar_global_fref.num==23) |
| assert(cb.Bar.global_fref.num==23) |
| cb.Bar_global_fref=cb.Foo(-7) -- this will set the value |
| assert(cb.Bar_global_fref.num==-7) |
| assert(cb.Bar.global_fref.num==-7) |
| |
| assert(cb.Bar_global_fval.num==3) |
| assert(cb.Bar.global_fval.num==3) |
| cb.Bar_global_fval=cb.Foo(-34) |
| assert(cb.Bar_global_fval.num==-34) |
| assert(cb.Bar.global_fval.num==-34) |
| |
| assert(cb.Bar.global_cint == -4) |
| assert(cb.Bar_global_cint == -4) |
| |
| -- Now test member function pointers |
| func1_ptr=cb.get_func1_ptr() |
| func2_ptr=cb.get_func2_ptr() |
| f.num=4 |
| assert(f:func1(2)==16) |
| assert(f:func2(2)==-8) |
| |
| f.func_ptr=func1_ptr |
| assert(cb.test_func_ptr(f,2)==16) |
| f.func_ptr=func2_ptr |
| assert(cb.test_func_ptr(f,2)==-8) |
| |
| -- Test that __tostring metamethod produce no internal asserts |
| f2_name = tostring(f2) |
| |
| f3 = cb.FooSub() |
| f3_name = tostring(f3) |
| |
| f4 = cb.FooSubSub() |
| f4_name = tostring(f4) |
| |
| assert( f2_name == "Foo" ) |
| assert( f3_name == "Foo" ) |
| assert( f4_name == "FooSubSub" ) |
| |
| -- Test __eq implementation supplied by default |
| |
| -- eq_f1 and eq_f2 must be different userdata with same Foo* pointer. If eq_f1 and eq_f2 are the same userdata (e.g.) |
| -- > eq_f1 = smth |
| -- > eq_f2 = eq_f1 |
| -- then default Lua equality comparison kicks in and considers them equal. Access to global_fptr is actually a |
| -- function call (internally) and it returns new userdata each time. |
| eq_f1 = cb.Bar.global_fptr |
| eq_f2 = cb.Bar.global_fptr |
| assert( eq_f1 == eq_f2 ) |
