Greetings all,
I am working on a project that needs scripting and I've decided to make use of Fabrice Bellard's awesome QuickJS library. I am considering making it nice to use for the rest of the Free Pascal user community by implementing an interesting way of integrating Javascript that would make its usage as easy as possible.
Before I do so however, I wanted to get some feedback on how this would work to gauge if it would be of interest to fellow Free Pascal users. Here is how it would work. All feedback would be appreciated.
Javascript:
let data = { name: "James", age: 25 };
function update(name) {
data.name = name;
}
function verify(note) {
console.log("received note " + note);
console.log("data name is " + data.name);
hello(data, " message from javascript");
console.log("table size is " + table.size[0] + " by " + table.size[1]);
}Pascal:
function JavascriptCallback(Script: IScript; Args: TScriptValues):
TScriptValue;
begin
WriteLn(Args[0].age, Args[1]);
// writes 25 message from javascript
Result := Nothing;
end;
var
TestScript: IJavascript;
procedure LoadScript;
begin
Script := NewScript(MyScriptText);
Script.Global.table.size := [15, 6];
// { table: { size: [15, 6] } } is now available to javascript
Script.Global.hello := Script.DefineCallback(JavascriptCallback);
end;
procedure CallScript;
begin
// Call the javascript verify method passing it a note
Script.Global.verify("a note from pascal");
// verify will call back out JavascriptCallback function
Script.Global.update("Ralph");
end;