swig/Examples/test-suite/lua/li_std_string_runme.lua
2005-09-20 20:57:30 +00:00

104 lines
3.6 KiB
Lua

require("import") -- the import fn
import("li_std_string") -- import lib
for k,v in pairs(li_std_string) do _G[k]=v end -- move to global
-- catch "undefined" global variables
setmetatable(getfenv(),{__index=function (t,i) error("undefined global variable `"..i.."'",2) end})
-- helper to check type
function is_std_string(s)
return type(s)=='userdata' and swig_type(s)=='_p_std__string'
end
-- std::string by value is just a Lua string
s=test_value("foo")
assert(type(s)=="string" and s=="foo")
-- std::string by const ref is also just a Lua string
s=test_const_reference("foo")
assert(type(s)=="string" and s=="foo")
-- std:string* is an object
obj=test_pointer_out()
assert(is_std_string(obj) and obj:c_str()=="x") -- check type & value
test_pointer(obj) -- this wants an object
cobj=test_const_pointer_out()
assert(is_std_string(cobj) and cobj:c_str()=="x") -- check type & value
test_const_pointer(cobj)
-- this shouldnt work, but it does
-- swig doesnt appear to diff between const object ptrs & object ptrs very well
test_pointer(cobj) -- this wants an non const object (give it a const one!)
-- refs are also wrappered as ptrs (unless the correct typemaps are applied)
robj=test_reference_out()
assert(is_std_string(robj) and robj:c_str()=="test_reference_out message") -- check type & value
test_reference(robj)
test_reference(obj) -- object ptr is ok
test_reference(cobj) -- obj const ptr is also ok
-- throwing string
ok,ex=pcall(test_throw)
assert(ok==false and type(ex)=="string") -- failed & threw string
ok,ex=pcall(test_const_reference_throw)
assert(ok==false and type(ex)=="string") -- failed & threw string
-- const ptrs are thrown as str::string**
-- not quite right
ok,ex=pcall(test_const_pointer_throw)
assert(ok==false and type(ex)=="userdata") -- failed & threw object
-- ditto non const ptrs
ok,ex=pcall(test_pointer_throw)
assert(ok==false and type(ex)=="userdata") -- failed & threw object
-- testing the structure:
s=Structure()
-- because of the SWIG's 'everything else is a ptr'
-- member strings are a little unusal
assert(is_std_string(s.MemberString)) -- std::string*
assert(type(s.MemberString2)=="string") -- typemaps make this a string
assert(is_std_string(s.ConstMemberString)) -- std::string*
-- set them
s.MemberString:assign("a") -- as its std::string* must use assign
s.MemberString2="b" -- typemaps ok
s.ConstMemberString="c" -- silently ignored
s.ConstMemberString:assign("c") -- works (oops!!!)
--print(s.MemberString:data(),s.MemberString2,s.ConstMemberString:data())
--check type again
assert(is_std_string(s.MemberString)) -- std::string*
assert(type(s.MemberString2)=="string") -- typemaps make this a string
assert(is_std_string(s.ConstMemberString)) -- std::string*
-- for static types: they are really variables,
-- so we must still use the module name
-- check static type
assert(is_std_string(li_std_string.Structure_StaticMemberString))
assert(type(li_std_string.Structure_StaticMemberString2)=="string")
assert(is_std_string(li_std_string.Structure_ConstStaticMemberString))
-- try setting
li_std_string.Structure_StaticMemberString:assign('d')
li_std_string.Structure_StaticMemberString2='e'
li_std_string.Structure_ConstStaticMemberString='f' -- silently ignored
li_std_string.Structure_ConstStaticMemberString:assign('f') -- works (oops!!!)
--[[print(li_std_string.Structure_StaticMemberString:data(),
li_std_string.Structure_StaticMemberString2,
li_std_string.Structure_ConstStaticMemberString:data())]]
-- check static type again
assert(is_std_string(li_std_string.Structure_StaticMemberString))
assert(type(li_std_string.Structure_StaticMemberString2)=="string")
assert(is_std_string(li_std_string.Structure_ConstStaticMemberString))