Segfault when a "modern" event handler is declared inside a function #163

kovaxis · 2020-04-22T20:30:54Z

Modern event handlers seem pretty broken when declared inside a function.

As a minimal example, this code:

<html>
    <script type="text/tiscript">
        function foo() {
            event mousedown {
                stdout.println("M")
            }
            stdout.println("R")
        }
        foo()
    </script>
</html>

Results in a segfault in my machine.

For some reason, commenting out the "R" print statement prevents the segfault, but the "M" message isn't printed.

I'm using the Rust bindings to 64-bit Sciter 4.4.2.4, on a Windows 10 machine.

By the way, really cool library.

The text was updated successfully, but these errors were encountered:

c-smile · 2020-04-22T20:59:15Z

Confirmed here, thanks, looking.

But the code makes no sense anyway.
Event handlers should always have a "principal" - DOM element they are attached to.

So either one of these

// global handler, set on document (a.k.a. `self`)
event mousedown {
   stdout.println("M")
}
foo();

Or

        function foo() {
            // mousedown on <body> element
            $(body) << event mousedown { 
                stdout.println("M")
            }
            stdout.println("R")
        }
        foo()

Or

class Some : Element {
    event mousedown { 
        stdout.println("M"); 
    }
}

The last one assumes that you have in CSS something like this:

   div.some {
      prototype: Some url(some.tis); // subclassing 
   }

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Segfault when a "modern" event handler is declared inside a function #163

Segfault when a "modern" event handler is declared inside a function #163

kovaxis commented Apr 22, 2020

c-smile commented Apr 22, 2020 •

edited

Segfault when a "modern" event handler is declared inside a function #163

Segfault when a "modern" event handler is declared inside a function #163

Comments

kovaxis commented Apr 22, 2020

c-smile commented Apr 22, 2020 • edited

c-smile commented Apr 22, 2020 •

edited