fervid_transform

Part of the fervid project, an all-in-one Vue compiler. This crate is responsible for the transformations in the template, such as optimizing the AST or transforming the JS/TS expressions in the AST nodes.

In the future this crate may accommodate the <style> transformations as well, which are currently in its own crate.

script

A set of Rust APIs for processing Vue's <script> and <script setup>.

Roadmap

• <script> support

  • Top-level declarations and imports;
  • data bindings;
  • props;
  • computed;
  • setup;
  • inject;
  • emits;
  • components;
  • methods;
  • expose;
  • name;
  • directives;

• <script setup> support

  • Top-level declarations and imports;
  • Binding types (using bit-flags instead of enum);
  • Compiler macros:
    • defineProps(...);
    • defineProps<...>();
    • defineEmits(...);
    • defineEmits<...>();
    • defineExpose;
    • defineOptions;
    • defineSlots;

• TypeScript support

  • enum bindings;
  • Type-only props/emit declarations;
  • DEV-mode import usage checks;

• Additional features

  • useCssVars;
  • Top-level await;

• Compilation order

  • Analysis of scripts;
  • Merging scripts into an Options API object
    • Trivial field-by-field merging;
    • Non-trivial merging using { ...legacy, ...setup };
  • Attaching compiled template
    • Adding bindings return in DEV mode, then attaching a render function to the _sfc_ object;
    • Inlining template in PROD mode;
  • Attaching additional information: name, scope, etc.