rust-gc | Simple tracing garbage collector for Rust
kandi X-RAY | rust-gc Summary
kandi X-RAY | rust-gc Summary
Simple tracing (mark and sweep) garbage collector for Rust
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QUESTION
I'm working with a friend to define a safe public API for lifetimes of a "scoped" garbage collector. The lifetimes are either overly constrained and correct code does not compile or the lifetimes are too loose and they may allow invalid behavior. After trying multiple approaches, we are still stuck getting a correct API. This is especially frustrating because Rust's lifetimes can help avoid bugs in this situation but right now it just looks stubborn.
Scoped garbage collectionI am implementing an ActionScript interpreter and need a garbage collector. I studied rust-gc but it did not suit my needs. The main reason is that it requires the garbage collected values to have a static lifetime because the GC state is a thread-local static variable. I need to get garbage-collected bindings to a dynamically created host object. The other reason to avoid globals is that it is easier for me to handle multiple independent garbage-collected scopes, control their memory limits or serialize them.
A scoped garbage collector is similar to a typed-arena. You can use it to allocate values and they are all freed once the garbage collector is dropped. The difference is that you can also trigger garbage collection during its lifetime and it will clean-up the unreachable data (and is not limited to a single type).
I have a working implementation implemented (mark & sweep GC with scopes), but the interface is not yet safe to use.
Here is a usage example of what I want:
...ANSWER
Answered 2018-Mar-13 at 12:45This is one of the hardest problems I had with lifetimes with Rust so far, but I managed to find a solution. Thank you to panicbit and mbrubeck for having helped me on IRC.
What helped me to move forward was the explanation of the error I posted at the end of my question:
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Install rust-gc
Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.
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