rescript-lang/rescript
Rescript
ReScript is a statically typed programming language and compiler designed to transform type-safe source code into efficient, human-readable JavaScript. It functions as a transpiler that enforces data consistency and prevents runtime errors through static type analysis for both web and server applications.
The project distinguishes itself as an incremental build system that analyzes dependency graphs to recompile only modified files and their dependents. It includes a JSX compatible compiler for building user interfaces and provides a framework for bridging type-safe code with existing JavaScript libraries through consistent interfaces for functions and types.
Broad capabilities include the generation of TypeScript definitions, dead-code elimination via scoped annotations, and the provision of code intelligence such as autocomplete and jump-to-definition. The system also supports build-time feature flags, asynchronous logic handling, and automated source code formatting.
Features
- Source-to-JavaScript Transpilers - Translates a robustly typed source language into efficient, human-readable JavaScript by stripping type annotations.
- Typed JavaScript Alternatives - Provides a robust static type system that compiles to efficient JavaScript to prevent runtime errors.
- Incremental Build Engines - Utilizes a high-performance engine to recompile only modified components, significantly reducing overall build times.
- Incremental Build Systems - Tracks dependency graphs to recompile only modified source files, accelerating the development cycle.
- JavaScript Compilers - Translates a statically typed high-level language into efficient and human-readable JavaScript.
- JavaScript Interoperability - Bridges the type-safe language with the JavaScript runtime for exchanging data and invoking functions.
- Type Safety - Prevents runtime errors using a static type system with support for extensible records and type coercion.
- Statically Typed Languages - Implements a language with a robust static type system to ensure codebase consistency.
- Statically Typed Compilers - Transforms statically typed source code into efficient, human-readable JavaScript to ensure runtime safety.
- Dependency Graph Analyzers - Analyzes source dependencies to determine which files and their dependents require recompilation during the build process.
- Interoperability Layers - Provides a consistent interface to expose type-safe functions and types to external JavaScript scripts.
- Static Analysis - Enforces data consistency and prevents bugs through a compiler that analyzes code structures before execution.
- JavaScript Interop - Provides a framework for bridging type-safe code with JavaScript libraries using consistent interfaces.
- Code Intelligence - Provides contextual code suggestions, navigation, and autocomplete through analysis of compiled metadata files.
- Dead Code Elimination - Implements static analysis using scoped annotations to identify and remove unused code from the final JavaScript bundle.
- Watch Modes - Monitors files for changes to trigger incremental rebuilds of the JavaScript output.
- Language Servers - Implements a language server that uses compiled binary metadata to provide fast autocomplete and jump-to-definition features.
- Build-Time Feature Toggles - Provides compile-time parameters to conditionally include or exclude specific source files and dependencies based on configuration flags.
- Type Definition Generators - Automatically synthesizes static TypeScript definition files from source code to ensure type safety across modules.
- Functional Frontend Development - Enables building web user interfaces using a functional paradigm that compiles to JavaScript.
- JSX Compilers - Transforms JSX syntax extensions into standard JavaScript function calls for building user interfaces.
- JSX Transformers - Transforms JSX syntax tree nodes into executable JavaScript function calls during the build process.
- Integration - A robustly typed language that compiles to efficient and human-readable JavaScript
- Integrations - Typed language that compiles to efficient JavaScript.
- Renderers and Integration - Typed language that compiles to efficient JavaScript.
