func ExamTable() {
vm := lua.NewVM()
defer vm.Close()
vm.Openlibs()
result := vm.EvalString("T = {1,2,3}; return T")
fmt.Println("result:", result[0])
t := result[0].(*lua.Table)
for i := 1; i <= t.Getn(); i++ {
fmt.Printf("t[%v]=%v\n", i, t.Get(i))
}
ok, err := t.Set("a", "value_a")
fmt.Println("set a result:", ok, err)
fmt.Printf("t.a=%v\n", t.Get("a"))
ok, err = t.Set(nil, "null")
fmt.Println("set nil result:", ok, err)
vm.EvalString("print('in lua:', T.a)")
t.Release()
ok, err = t.Set("b", "value_b")
fmt.Println("set result:", ok, err)
}
func ExamFunction() {
vm := lua.NewVM()
defer vm.Close()
vm.Openlibs()
result := vm.EvalString("return function(a, b) return a+b end")
fn := result[0].(*lua.Function)
result, err := fn.Call(1, 2)
fmt.Println("call result:", result, err)
}
func Test1() {
vm := lua.NewVM()
defer vm.Close()
vm.Openlibs()
var EB = func(buf io.Reader) {
_, err := vm.EvalBufferWithError(buf, 0)
if err != nil {
fmt.Println("> EB", err)
}
}
var ES = func(s string) {
_, err := vm.EvalStringWithError(s, 0)
if err != nil {
fmt.Println("> ES", err)
}
}
f, err := os.Open("baselib.lua")
if err != nil {
f, err = os.Open("example/baselib.lua")
if err != nil {
fmt.Println(err)
}
}
defer f.Close()
EB(f)
ES(`
bin = pack.Pack(1, 2, {a=1,b=2,c=3, 1, 2})
print('#bin', #bin)
print(ToString({pack.Unpack(bin)}))
`)
ES(`
bin = pack.Pack('key', {a=1})
print('#bin', #bin)
print(ToString({pack.Unpack(bin)}))
`)
ES(`
bin = pack.Pack({a={b={c={d={e='depth'}}}}})
print('#bin', #bin)
print(ToString({pack.Unpack(bin)}))
`)
result, err := vm.EvalStringWithError("return 1,2,3,'aaa'", 0)
fmt.Println(result, err)
}
func ExamInterface() {
vm := lua.NewVM()
defer vm.Close()
vm.Openlibs()
CallMe := func(a ...interface{}) []interface{} {
return a
}
vm.AddFunc("CallMe", CallMe)
result, err := vm.EvalStringWithError(`
return CallMe(1, true, 'abc', nil)
`)
fmt.Println("err:", err)
fmt.Println("result:", result)
}
func ExamVararg() {
vm := lua.NewVM()
defer vm.Close()
vm.Openlibs()
SumAll := func(init int, values ...int) int {
for i := 0; i < len(values); i++ {
init += values[i]
}
return init
}
vm.AddFunc("SumAll", SumAll)
result, err := vm.EvalStringWithError("return SumAll(1000,2,3,4,5,6)")
fmt.Println("err:", err)
fmt.Println("result:", result)
}
func Test() {
vm := lua.NewVM()
vm.Openlibs()
vm.AddStructs(allMyStruct{})
vm.AddFunc("test.NewDoublePoint", NewDoublePoint)
begin := time.Now()
_, err := vm.EvalStringWithError(`
doublePoint = test.NewDoublePoint()
for i=0, 1000000 do
doublePoint.P1_X = doublePoint.P2_X
end
`)
end := time.Now()
fmt.Println(err, end.Sub(begin))
}
func Test1() {
vm := lua.NewVM()
defer vm.Close()
vm.Openlibs()
vm.AddStructList(allMyStruct{})
vm.AddFunc("NewPoint", NewPoint)
vm.AddFunc("NewDoublePoint", NewDoublePoint)
vm.AddFunc("NewIntSlice", NewIntSlice)
vm.AddFunc("NewStrIntMap", NewStrIntMap)
vm.AddFunc("go.golang", GetHello)
_, err := vm.AddFunc("go.golang.GetHello", GetHello)
fmt.Println("AddFunc", err)
var ES = func(s string) {
_, err := vm.EvalStringWithError(s, 0)
if err != nil {
fmt.Println("> ES", err)
}
}
var EB = func(buf io.Reader) {
_, err := vm.EvalBufferWithError(buf, 0)
if err != nil {
fmt.Println("> EB", err)
}
}
ES("pt = NewPoint(1, 2)")
ES("print(pt.X, pt.Y)")
ES("print(pt.SumXY)")
// string reader
EB(strings.NewReader("print(pt:SumXY())"))
// file reader
f, err := os.Open("baselib.lua")
if err != nil {
fmt.Println(err)
} else {
defer f.Close()
EB(f)
}
ES("map = NewStrIntMap(); print('map[a]', #map, map['c'], map['x'])")
ES("map['c']=nil; print('map[c]', map['c'])")
ES("map['c']=4; print('map[c]', map['c'])")
ES("map[1]=4")
ES("map['1']='4'")
ES("slice = NewIntSlice(); print('slice[0]', #slice, slice[0])")
ES("slice[0]=100; print(slice[0])")
ES("slice[-1]=200")
ES("slice['a']=200")
ES("dp = NewDoublePoint(); print('dp.P1.X', dp.P1_X)")
ES("dp.P1_X = 100; print('dp.P1.X', dp.P1_X)")
ES("dp.P1_X = '100'")
ES("dp.P1_K = 100")
ok, err := vm.AddFunc("", WrongRawFunc1)
fmt.Println("WrongRawFunc1", ok, err)
ok, err = vm.AddFunc("", WrongRawFunc2)
fmt.Println("WrongRawFunc2", ok, err)
ok, err = vm.AddFunc("", WrongRawFunc3)
fmt.Println("WrongRawFunc3", ok, err)
ES("print(go.golang.GetHello())")
ES("print(go.golang())")
ES("for _, k in ipairs(golang.Keys(map)) do print(k) end")
ES("print(golang.HasKey(map, 1))")
ES("print(golang.HasKey(map, 'k'))")
ES("print(golang.HasKey(map, 'a'))")
}