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@factlas/plugin-jsx

v4.0.0

Published

Factlas plugin: extract import, jsx.element, jsx.prop and jsx.attribute facts from TSX

Readme

@factlas/plugin-jsx

A Factlas plugin. Extracts the non-styling fact kinds from TS/TSX: import, jsx.element, jsx.prop, and jsx.attribute (source babel-jsx).

  • import — one fact per specifier (default / named / namespace / side-effect). Powers allowed-packages policies.
  • jsx.element — every JSX element, tagged is_dom and (for components) imported_from. Powers required/forbidden-component policies.
  • jsx.prop — attributes on component elements (<Button variant="…">).
  • jsx.attribute — attributes on DOM elements (<div style={…}>), powering no-inline-style / forbidden-attribute policies.

Props/attributes carry an element_id equal to the fact_id of their owning jsx.element (computed with core's computeFactId), so you can join a prop back to its element — e.g. "a Button from @acme/ui that also sets variant."

import { extractFile, assembleFacts } from '@factlas/core';
import jsx from '@factlas/plugin-jsx';

const facts = assembleFacts(extractFile({ file: 'App.tsx', code, plugins: [jsx] }));

Values are resolved statically (one-hop const, conditionals → static-union, runtime props → dynamic), never executed.