fervid

Vue SFC compiler written in Rust. Currently in early development, and the closest goal is to reach feature-parity with the current Vue SFC compiler.

Progress till MVP

A minimal target of this project includes: - Vue 3 code generation; - unplugin integration; - Dev/prod mode support; - <script setup> support; - Example Vue project with configuration; - Performance comparison.

Is it fast?

Yes, it is incredibly fast. In fact, below are the parsing/compilation times benchmarked for a test component.

| Action | Mean time | |----------------------------|--------------| | Parsing | 5.58µs | | Code generation: CSR + DEV | 16.26µs |

Note: results are for AMD Ryzen 9 5900HX running on Fedora 37 with kernel version 6.1.6

Micro-benchmarking has been done using Criterion, code for benchmarks can be found in benches directory.

Actual benchmarking is a TODO and has much lower priority compared to feature-completeness and usability in real-world scenarios, so Pull Requests are welcome.

Roadmap

Parser - [x] Template parsing - [ ] W3 Spec compliance

Analyzer - [ ] Template scope construction - [ ] Error reporting - [ ] JS/TS imports analysis (powered by swcecmaparser) - [ ] setup/data/props analysis

Code generator - [ ] Basic Vue3 code generation - [ ] Elements - [x] createElementVNode - [ ] Attributes - [x] Static + Dynamic - [ ] style merging - [ ] class merging - [x] Children - [x] Components - [x] createVNode - [x] Slots - [ ] Context-awareness (_ctx, $data, $setup) - [ ] Directives - [x] v-on - [x] v-bind - [x] v-if / v-else-if / v-else - [x] v-for - [x] v-show - [x] v-slot - [x] v-model - [x] Other directives (less priority) - [ ] Hoisting

[ ] Processing <style scoped>
[ ] <script setup> support
[ ] Vue 2.7 support
[ ] SSR with inline critical CSS support
[ ] Eager pre-compilation of Vue imports (avoid unneccessary bundler->compiler calls)

Integrations - [ ] WASM binary (with/without WASI) - [ ] NAPI binary - [ ] unplugin - [ ] Turbopack plugin (when plugin system is defined)