Jiang

Jiang is a systems programming language in active development. Its current focus is a clear core language, direct control over memory and layout, and continued work on a compiler that has reached an initial self-hosting milestone.

These docs are written as a practical guide first. They describe the language as it exists today, while treating fast-moving areas carefully.

Start Here

InstallBuild the compiler from source and prepare the LLVM toolchain.First ProgramCompile a small Jiang program and understand the basic workflow.Language GuideLearn declarations, types, functions, modules, and control flow.Compiler CLIUse jiangc to emit LLVM IR, object files, or executables.

Project Status

The Jiang compiler has reached an initial self-hosting milestone: the Stage1 prototype remains as a bootstrap tool, while the Stage2 compiler is generated from Jiang code and can continue compiling the current compiler codebase.

The next priorities are broader language tests, stable package/module boundaries, backend and runtime coverage, and gradually reducing reliance on the bootstrap stage.

For now, treat the website as a living language guide rather than a frozen specification. The most stable pieces are naming style, type notation, mutability, arrays, pointers, optionals, imports, packages, and the current compiler command-line workflow.