Awesome GitHub RepositoriesLanguage Runtime Emulators

GopherJS is a cross-compiler toolchain that converts Go source code into JavaScript. It functions as a transpiler, enabling the execution of statically typed Go code within web browsers and other standard JavaScript runtime environments. The project provides a comprehensive implementation of the Go standard library, replacing system-level calls with browser-compatible APIs to maintain language semantics. It maps Go's memory allocation patterns and type definitions onto the host JavaScript engine, while utilizing source map generation to allow for debugging using original Go source files. By

Grumpy is a native binary compiler that transforms Python source code into Go source code. By transpiling high-level scripts into a strongly typed intermediate representation, the system enables the creation of statically linked native binaries that operate independently of a traditional virtual machine interpreter. The project distinguishes itself by providing a comprehensive runtime library that replicates standard Python data structures and object behaviors. This emulation layer ensures that compiled code maintains functional parity with the original source environment while leveraging the

j2objc is a source-to-source compiler and transpiler that converts Java source code into Objective-C. It functions as a cross-platform logic porter, allowing application logic and data models written in Java to be shared and executed on iOS. To support this translation, the project provides an Objective-C implementation of core Java classes and APIs to emulate the Java runtime environment. The system includes specialized translation for Java libraries and provides mapping for dependency injection and static analysis annotations to preserve metadata. It also enables the conversion of JUnit tes