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package luar
import (
"reflect"
"github.com/yuin/gopher-lua"
)
func structIndex(L *lua.LState) int {
ref, mt := check(L, 1)
key := L.CheckString(2)
if fn := mt.method(key); fn != nil {
L.Push(fn)
return 1
}
ref = reflect.Indirect(ref)
index := mt.fieldIndex(key)
if index == nil {
return 0
}
field := ref.FieldByIndex(index)
if !field.CanInterface() {
L.RaiseError("cannot interface field " + key)
}
if (field.Kind() == reflect.Struct || field.Kind() == reflect.Array) && field.CanAddr() {
field = field.Addr()
}
L.Push(New(L, field.Interface()))
return 1
}
func structPtrIndex(L *lua.LState) int {
ref, mt := check(L, 1)
key := L.CheckString(2)
if fn := mt.method(key); fn != nil {
L.Push(fn)
return 1
}
ref = ref.Elem()
mt = MT(L, ref.Interface())
if fn := mt.method(key); fn != nil {
L.Push(fn)
return 1
}
index := mt.fieldIndex(key)
if index == nil {
return 0
}
field := ref.FieldByIndex(index)
if !field.CanInterface() {
L.RaiseError("cannot interface field " + key)
}
if (field.Kind() == reflect.Struct || field.Kind() == reflect.Array) && field.CanAddr() {
field = field.Addr()
}
L.Push(New(L, field.Interface()))
return 1
}
func structPtrNewIndex(L *lua.LState) int {
ref, mt := check(L, 1)
key := L.CheckString(2)
value := L.CheckAny(3)
ref = ref.Elem()
mt = MT(L, ref.Interface())
index := mt.fieldIndex(key)
if index == nil {
L.RaiseError("unknown field " + key)
}
field := ref.FieldByIndex(index)
if !field.CanSet() {
L.RaiseError("cannot set field " + key)
}
val, err := lValueToReflect(L, value, field.Type(), nil)
if err != nil {
L.ArgError(2, err.Error())
}
field.Set(val)
return 0
}
func structEq(L *lua.LState) int {
ref1, _ := check(L, 1)
ref2, _ := check(L, 2)
L.Push(lua.LBool(ref1.Interface() == ref2.Interface()))
return 1
}
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