JSON implicit assignment issue

[Sergio Rossi]

The implicit conversion of a JSON value fails when it is created not as an object but as a JSON base value.
The following code allows you to recreate the issue:

‌

var j := JSON.Parse('{"Name":1.5}');
var h := JSON.Parse('3.5');

procedure Stuff1(a : Float);
begin
   PrintLn(a);
end;

procedure Stuff2(const a : Variant);
begin
   PrintLn(Float(a));
end;

var s : Float;

// works

s := j.Name;

PrintLn(s);

PrintLn(j.Name);
Stuff1(j.Name);
Stuff2(j.Name);

// don't works

s := h;

PrintLn(s);

PrintLn(h);
Stuff1(h);
Stuff2(h);

‌

[Eric Grange]

The snippet prints this here, which appears correct, unless I am missing something ?

‌

1.5
1.5
1.5
1.5
3.5
3.5
3.5
3.5

‌

[Sergio Rossi]

That's weird. Running the script I get the following error: "Could not convert variant of type (Unknown) into type (Double)".
As soon as I can, in the next few days, I will investigate better and give you more information.
Thank you.

[Eric Grange]

Are you on a recent commit or some older version? Which Delphi version are you using?

[Sergio Rossi]

Tested by Delphi XE2.
But now I'm getting the doubt that I've compiled an old version of the library and not the most recent one. Maybe something like this could have happened.
As soon as I can, I'll check it out and let you know.
Thanks.

[Sergio Rossi]

Today I had a chance to investigate thoroughly and found out that I had actually inadvertently compiled by an old version of the library, namely 2.3.
Compiling instead using the latest version of the library, the script is executed without errors and as you reported.
I apologize for my mistake.
You can close the issue.
Thank you.

[Eric Grange]

Great, thanks