//horrific way to do map(func)
func extractAllLetters(obj js.Object) js.Object {
result := js.Global.Get("Array").New()
for i := 0; i < obj.Length(); i++ {
result.SetIndex(i, extractLetter(obj.Index(i)))
}
return result
}
func wrapNodes(o *js.Object) []dom.Node {
l := o.Length()
toRet := make([]dom.Node, l)
for i := 0; i < l; i++ {
toRet[i] = dom.WrapNode(o.Index(i))
}
return toRet
}
func getJSONTag(tag *js.Object) string {
strLen := tag.Length()
var val *js.Object
for i := 0; i < strLen; i++ {
start := i
for i < strLen && tag.Call("charCodeAt", i).Int() == ' ' {
i++
}
var char int
for ; i < strLen; i++ {
char = tag.Call("charCodeAt", i).Int()
if char <= ' ' || char == ':' || char == '"' {
break
}
}
if i+1 >= strLen || char != ':' || tag.Call("charCodeAt", i+1).Int() != '"' {
break
}
name := tag.Call("substring", start, i)
i += 2
start = i
for ; i < strLen; i++ {
char = tag.Call("charCodeAt", i).Int()
if char == '\\' {
i++
} else if char == '"' {
break
}
}
if name.String() == "json" {
val = tag.Call("substring", start, i)
break
}
}
if val == nil {
return ""
}
return val.String()
}
func isEmpty(v, t *js.Object) bool {
switch t.Get("kind").Int() {
case boolKind:
return !v.Bool()
case int8Kind, int16Kind, int32Kind, intKind, uint8Kind, uint16Kind, uint32Kind, uintKind:
return v.Int() == 0
case int64Kind, uint64Kind:
return v.Int64() == 0
case float32Kind, float64Kind:
return v.Float() == 0
case arrayKind, sliceKind, stringKind:
return v.Length() == 0
case ptrKind:
return v == t.Get("nil")
case interfaceKind:
if v.Get("$val") == js.Undefined {
return true
}
return isEmpty(v.Get("$val"), v.Get("constructor"))
case mapKind:
return js.Global.Get("Object").Call("keys", v).Length() == 0
}
return false
}
func getFloats(obj *js.Object) (ret []float64) {
if (obj == js.Undefined) || (obj == nil) || (obj.Length() == 0) {
return nil
}
ret = make([]float64, 0, obj.Length())
for i := 0; i < obj.Length(); i++ {
ret = append(ret, obj.Index(i).Float())
}
return
}
func dataLength(x *js.Object) int {
return x.Length()
}