vue-macros is a monorepo of compile-time macros and syntax sugar for Vue 3, distributed as a set of npm packages that integrate with Vite, Rollup, esbuild, Webpack, Rspack, Rolldown, Nuxt, and Astro. In production it acts as a build-time transformer: it parses Vue SFCs and TS/TSX files, identifies macro calls (defineProps, defineModels, defineOptions, shortVmodel, JSX directives, reactivity transform, etc.), and rewrites them into standard Vue compiler-compatible code using Babel AST manipulation and MagicString. The main entry point is packages/macros, which combines roughly 25 feature plugins via unplugin; each feature package exposes per-bundler entry shims (vite.ts, rollup.ts, etc.) generated by monoman. It also ships a Volar plugin for IDE support, a devtools plugin, and a config loader that reads vue-macros.config.* files.
unplugin-icons is a universal build tool plugin that enables on-demand import of thousands of SVG icons as framework-specific components. It integrates with Vite, Webpack, Rollup, Nuxt, Rspack, and esbuild via the unplugin abstraction. The core architecture consists of a loader that resolves icon paths (e.g., `~icons/mdi/account`), fetches SVG data from Iconify or custom collections, and passes the SVG through a compiler that generates code for Vue 3, React/JSX, Svelte, Solid, Astro, Ember, Qwik, Web Components, or raw SVG strings. Options allow customization of scale, style, class, icon customizer, and auto-install of icon sets. The resolver module enables auto-importing icons as components in Vue/React/Solid projects via unplugin-vue-components or unplugin-auto-import. The codebase is well-structured, with clear separation between build tool adapters, core logic, and compilers. It relies on external dependencies like @iconify/utils for SVG loading and optional peer dependencies for framework-specific compilation.
React Code View is a React component library for rendering code with live preview and syntax highlighting. It provides a CodeView component that combines an editable code editor, live preview, and syntax highlighting, allowing developers to create interactive code examples. The library includes build tool plugins (unplugin) for Vite, Webpack, Rollup, esbuild, and Rspack that enable importing markdown files as React components with automatic code block processing. At its core, it uses Sucrase for JSX/TS transformation, Shiki for syntax highlighting, and CodeMirror 6 for the editing experience, with code execution happening in a sandboxed environment.