On 2015-09-23 5:49 PM, Terrence Cole wrote:
In Mozilla's C++ dialect, these two are roughly equivalent because fallible init goes though a manual |bool init(...args...)| function after rooting (and the tracer needs to deal with partial init). In the rust world that I envision, you'd be able to fallibly construct something like (please excuse me if my rust ideoms are old /and/ shaky):let foo: Rooted<Foo> = match Foo::new(..args..) { Err(err) => handleErr!(...), Ok(foo) => Rooted<Foo>(foo) }; Does this help at all or have I totally misunderstood the problem you are facing? Please ping me on IRC and we can discuss this! The GC team is now actively churning towards a simpler (and ideally C-wrappable) API and I'd like to make sure we're all on the same page.
This looks like a plausible solution to my problem. Nevertheless, it looks like if Foo::new returns a value which contains GC pointers then it's a potential hazard, right?
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