[Solved] can't use JsonObject.All, don't understand Iterators

[abakoboParticipant]

I’m trying to use the JsonObject.All method but can’t.
In the docs it says it returns an iterator but when trying to “for eachin” it, the compiler tells me it has no “atEnd” method.
So I checked Map.Iterator struct and yes it doesn’t have an “atEnd” method! is it normal? Some others iterators (stack for example) does have an “AtEnd” method.

I can use eachin loops with a map getting it’s nodes within the for loop. But I actually don’t know what to do with an iterator!
I am supposed to use iterators as a end user? Am I supposed to use the JsonObject.All methods? I can get what I need with the JsonObject.ToObject() but I’d like to undesrtand a bit those things I don’t get!

If there is a use of iterator, is it possible to have a small educational example.

EDIT: Forgot to call .All(), was calling .All so was receiving a function pointer…

thx

[abakoboParticipant]

here’s my (working) test code for those who want a simple Json example

Monkey

Namespace myapp #Import "<std>" Using std.. Function Main() ChangeDir("c:/mx2_short/json") Local arr:=New String[4] arr[0]="0" arr[1]="1" arr[2]="2" arr[3]="3" Local jobj:=New JsonObject Local kobj:=New JsonObject Local jarr:=New JsonArray For Local str:=Eachin arr jarr.Add( New JsonString( str ) ) Next jobj["arrai"]=jarr jobj["i"]=New JsonNumber(7) jobj["j"]=New JsonNumber(8) kobj["a"]=New JsonString("haha") kobj["o"]=New JsonString("hoho") jobj["hihi"]=kobj SaveString( jobj.ToJson(),"test3.json" ) Local lobj:=JsonObject.Load( "test3.json" ) 'Local objmap:=lobj.ToObject() Local JOAll:=jobj.All() While JOAll.Current <> Null Print JOAll.Current.Key JOAll.Bump() Wend End

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Namespace myapp   #Import "<std>"   Using std..   Function Main()   ChangeDir("c:/mx2_short/json")   Local arr:=New String[4] arr[0]="0" arr[1]="1" arr[2]="2" arr[3]="3" Local jobj:=New JsonObject Local kobj:=New JsonObject Local jarr:=New JsonArray For Local str:=Eachin arr jarr.Add( New JsonString( str ) ) Next jobj["arrai"]=jarr jobj["i"]=New JsonNumber(7) jobj["j"]=New JsonNumber(8) kobj["a"]=New JsonString("haha") kobj["o"]=New JsonString("hoho") jobj["hihi"]=kobj SaveString( jobj.ToJson(),"test3.json" ) Local lobj:=JsonObject.Load( "test3.json" ) 'Local objmap:=lobj.ToObject() Local JOAll:=jobj.All() While JOAll.Current <> Null Print JOAll.Current.Key JOAll.Bump() Wend End

[papgarParticipant]

That’s the risk of using := I guess. 

[nerobotParticipant]

Some additional iteration cases:

Monkey

Namespace myapp #Import "<std>" Using std.. Function Main() Local json:=New JsonObject json["hello"]=New JsonString( "Hello, " ) json["world"]=New JsonString( "world!" ) ' case 1 - using Map.Node<String,JsonValue> For Local node:=Eachin json Print "1: "+node.Key+" : "+node.Value.ToString() Next ' case 2 - using Map.Keys, key is String here For Local key:=Eachin json.Data.Keys Print "2: "+key+" : "+json[key].ToString() Next ' case 3 - using Map.Values, val is JsonValue here For Local val:=Eachin json.Data.Values Print "3: "+val.ToString() Next End

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Namespace myapp   #Import "<std>"   Using std..   Function Main()   Local json:=New JsonObject json["hello"]=New JsonString( "Hello, " ) json["world"]=New JsonString( "world!" ) ' case 1 - using Map.Node<String,JsonValue> For Local node:=Eachin json Print "1: "+node.Key+" : "+node.Value.ToString() Next ' case 2 - using Map.Keys, key is String here For Local key:=Eachin json.Data.Keys Print "2: "+key+" : "+json[key].ToString() Next ' case 3 - using Map.Values, val is JsonValue here For Local val:=Eachin json.Data.Values Print "3: "+val.ToString() Next End

[abakoboParticipant]

Thanks nerobot!

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