Lua improvements - Mark Gossage patch #1295168

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@7476 626c5289-ae23-0410-ae9c-e8d60b6d4f22

SWIG/Examples/test-suite/lua/li_std_string_runme.lua

@@ -0,0 +1,104 @@
+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))
+

SWIG/Examples/test-suite/lua/li_std_vector_runme.lua

@@ -0,0 +1,66 @@
+require("import")	-- the import fn
+import("li_std_vector")	-- import code
+
+for k,v in pairs(li_std_vector) do _G[k]=v end -- move to global
+
+iv = IntVector(4)
+for i=0,3 do
+    iv[i] = i
+end
+
+for i=0,3 do assert(iv[i]==i) end
+
+x = average(iv)
+
+function near(x,y) return math.abs(x-y)<0.001 end
+
+assert(near(x,1.5))
+
+rv = RealVector()
+rv:push_back(10)
+rv:push_back(10.5)
+rv:push_back(11)
+rv:push_back(11.5)
+
+a=half(rv)
+for i=0,rv:size()-1 do
+	assert(near(a[i],rv[i]/2))
+end
+
+dv = DoubleVector(10)
+for i=0,9 do dv[i] = i/2.0 end
+
+halve_in_place(dv)
+
+for i=0,9 do 
+	assert(near(dv[i],i/4))
+end
+
+sv=StructVector(4)
+
+for i=0,3 do
+	sv[i]=Struct(i)
+end
+
+for i=0,3 do
+	assert( swig_type(sv[i]) =='_p_Struct' and sv[i].num==i)
+end
+
+-- range checking
+idx=0
+function test_set() iv[idx]=0 end
+function test_get() iv[idx]=0 end
+
+idx=0 --ok
+assert(pcall(test_get)==true)
+assert(pcall(test_set)==true)
+idx=-1 --should error
+assert(pcall(test_get)==false)
+assert(pcall(test_set)==false)
+idx=3 --ok
+assert(pcall(test_get)==true)
+assert(pcall(test_set)==true)
+idx=4 --should error
+assert(pcall(test_get)==false)
+assert(pcall(test_set)==false)
+