rolldown/rolldown

Features

• Rust-Implemented Tooling - Implements a high-performance bundling core written in Rust for efficient execution across JavaScript environments.
• Module Bundlers - Combines JavaScript and TypeScript source files and their dependencies into unified ECMAScript Module output artifacts.
• Build Pipeline Customizers - Provides a plugin interface to customize how files are processed, transformed, and optimized.
• Lazy Evaluation Graphs - Defers the processing of source files until they are explicitly requested by the dependency graph.
• Dependency Resolution - Provides mechanisms for mapping module names and import statements to physical file locations.
• Output Formatting Utilities - Produces bundles in various formats such as ESM and CommonJS to ensure compatibility across environments.
• Module Format Renderers - Translates a module graph into specific JavaScript distribution formats such as ESM and CommonJS.
• Source Bundling - Combines multiple JavaScript and TypeScript files into a single output file to reduce network requests.
• Lazy Module Compilation - Uses a Rust-based engine with lazy compilation to significantly reduce the time spent resolving and transforming source code.
• Compatibility Layers - Provides a compatibility layer that implements the Rollup API to ensure seamless integration with existing plugins and workflows.
• Lazy Compilation - Defers module processing until requested to speed up the initial build and startup time.
• Module Resolution - Implements algorithms and configuration logic to map module identifiers to specific file paths during the build process.
• Module Path Resolution - Locates code items within the module tree using absolute paths, relative paths, and configuration-based aliases.
• Rollup Compatible Bundlers - Implements a Rollup-compatible API to ensure compatibility with existing workflows and the established plugin ecosystem.
• Hook-Based Plugin Systems - Exposes a set of lifecycle hooks that allow external plugins to intercept and modify module resolution and transformation.
• Code Splitting - Divides the output into smaller files using dynamic imports and manual grouping to optimize loading performance.
• Frontend Asset Optimization - Reduces final bundle sizes using tree shaking, minification, and code splitting to improve website performance.
• JavaScript Bundlers - A high-performance JavaScript bundler written in Rust that compiles and packages modules for web deployment.
• JavaScript Bundling Workflows - Combines JavaScript and TypeScript files into optimized bundles for web applications.
• Tree-Shaking Optimizations - Eliminates dead code by analyzing the module graph to remove unused exports and side-effect-free calls.
• Tree-Shaking Optimizers - Uses static analysis to remove unused code during the build process to optimize final delivery size.
• Module Federation - Shares code between different builds at runtime using remote entry points and coordinated versioning.
• Abstract Syntax Tree Transformers - Implements tools that allow modification of the source code structure during the bundling process.
• Code Splitting - Divides the output into multiple smaller files via dynamic imports to optimize initial loading speed.
• Bundling Plugins - Provides programmable extensions that allow developers to customize how the engine resolves IDs, loads files, and renders chunks.
• Fast Development Iteration - Provides real-time code updates without full page reloads through a high-performance Rust build process.
• Hot Module Replacement - Updates running application code without reloading the page by applying real-time runtime patches.
• Source Map Generators - Generates source maps that link the bundled output back to the original source code for debugging.
• Chunking Strategies - Implements custom configurations for splitting code into optimized bundles using manual groups or size patterns.
• Code Transformation Engines - Performs static analysis and syntax conversion to modify source code during the build process.
• File Change Detection - Monitors source files and triggers automatic rebuilds whenever a change is detected.
• JavaScript Minification - Reduces final bundle size through whitespace removal, identifier optimization, and shortening variable names.
• 构建系统 - High-performance JavaScript/TypeScript bundler.

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