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Description
Our XS engine has supported Explicit Resource Management for years behind a flag. We are preparing to enable that by default, now that the proposal has achieved Stage 4. 🎉 Despite passing 100% of Explicit Resource Management tests in test262, we found that XS was not invoking [Symbol.dispose] when exiting the top-level of a module (see example below). Perhaps it is worth extending test262 coverage to ensure this is handled correctly and consistently.
class Foo {
close() {
trace(`Dispose!\n`);
}
toString() {
return "I'm foo";
}
static {
this.prototype[Symbol.dispose] = this.prototype.close;
}
}
using x = new Foo
trace(x, "\n");