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;
• 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.

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

• Template parsing
• W3 Spec compliance

Analyzer

• Template scope construction
• Error reporting
• JS/TS imports analysis (powered by swc_ecma_parser)
• setup/data/props analysis

Code generator

• Basic Vue3 code generation

  • Elements
    • createElementVNode
    • Attributes
      • Static + Dynamic
      • style merging
      • class merging
    • Children
  • Components
    • createVNode
    • Slots
  • Context-awareness (_ctx, $data, $setup)
  • Directives
    • v-on
    • v-bind
    • v-if / v-else-if / v-else
    • v-for
    • v-show
    • v-slot
    • v-model
    • 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
• 
• plugin (when plugin system is defined)