Mike Gerwitz
a23bae5e4d
This is a working streaming IR for XML. I want to get this committed before I go further cleaning it up and integrating it into the xmle writer. This is lacking detailed documentation, and the names of things may end up changing. Initial benchmarks do show that it has a ~2x performance improvement over quick-xml when dealing with two attributes on a node, and I suspect that improvement will increase with the number of attributes. We will see how it compares in real-world benchmarks once the linker has been modified to use it. The goal isn't to _avoid_ quick-xml---it'll be used in the future for things like escaping that would be a huge waste to implement ourselves. It just so happened that quick-xml was not beneficial for these changes; indeed, its own writer is fairly simple for the portions that were implemented here, so there's no use in fighting with its API, particularly around attributes and our need to explicitly control whitespace (with the intent of handling code formatters in the future). To put this into perspective: the reason this work is being done isn't to refactor the linker, or to speed it up, but to generalize XML writing and provide a suitable IR for use in the compiler. The first step of the frontend is to essentially echo the XML token stream back out so we can incrementally parse it and do something useful, to incrementally rewrite the compiler in Rust. |
||
|---|---|---|
| .. | ||
| asg.rs | ||
| memchr.rs | ||
| sym.rs | ||
| xir.rs | ||