A high-performance
programming language

High-performance code.
that stands alone.

Daslang is a strong, statically-typed programming language with generic programming, iterative type inference, and three execution tiers — interpreter, AOT to C++, JIT via LLVM. Embed it in your C++ engine, or build a standalone application end-to-end.

$ install daslang → read the docs

interp · AOT · JIT

three execution tiers, one source

platforms incl. PS5 & Switch

embed · standalone

two ways to ship

[export]
def main() {
    let name = "world"
    print("hello, {name}\n")
    for (i in range(3)) {
        print("  tick {i}\n")
    }
}

$ daslang hello.das

hello, world

tick 0 · tick 1 · tick 2

✓ 0.42 ms · interpreted

§ 01 benchmarks

The fastest interpreter, and a JIT that often beats C++.

Daslang wins most cross-language benchmarks. Same source, same semantics across all three tiers. Lower numbers are faster.

captured on

· normalised to fastest entry per row

· source: github.com/borisbat/dasProfile

sha256 ▾

loading benchmark data…

§ 02 features

A real language. Embeddable when you need it. Standalone when you don't.

01 · static

Strong static typing

Iterative type inference, generics with compile-time reflection. Errors before they ship.

02 · aot

AOT, JIT & interpreter

Same source, three execution tiers. AOT to C++ for consoles where JIT is forbidden.

03 · interop

Zero-friction C++ interop

Bind a function in one line. Calls cross the boundary an order of magnitude faster than peers.

04 · modes

Embedded or standalone

Drop it into a C++ host as a scripting layer, or compile a standalone Daslang binary end-to-end. Same language, same toolchain.

05 · macros

Compile-time macros

Reshape syntax to match the domain. The language reflects the problem, not the other way around.

06 · safety

Safe by default

Performance counts. But not at the cost of safety — unless you explicitly opt out for the hot path.

§ 03 platforms

Ships everywhere C++ ships — as a binary, or built into your engine.

Windows

x86 · x64

Linux

x64 · GCC · LLVM

macOS

arm64 · x64

iOS

AOT · signed

Android

arm64 · x64

WebAssembly

browser embed

PlayStation 4 / 5

AOT

Xbox One / Series X

AOT

Nintendo Switch

AOT

§ 04 install

One command on every platform.

Homebrew on macOS and Linux, scoop on Windows, pip on Windows, Linux and macOS, a .deb for Debian and Ubuntu — each installs the same SDK bundle: the compiler with the LLVM JIT, the tools, the standard library and the examples. The bundles themselves are on GitHub Releases, and a CMake build from the repo still works.

downloads →

# macOS (Apple silicon) and Linux (x86_64, arm64)

$ brew install borisbat/daslang/daslang

# on PATH: daslang, daslang-live; the SDK tree sits under the Cellar

$ daslang --version

# Windows x64

$ scoop bucket add daslang https://github.com/borisbat/scoop-daslang

$ scoop install daslang

# on PATH: daslang, daslang-live, dastest, lint, daspkg, dascov, detect-dupe, benchctl, das-fmt

$ daslang --version

# Windows x64, Linux x86_64 / arm64, macOS Apple silicon

$ pip install daslang

# on PATH: daslang, daslang-live, dastest, lint, daspkg, dascov, detect-dupe, benchctl, das-fmt

$ daslang --version

$ python -m daslang --version

# Debian / Ubuntu x86_64 - the .deb from the release page

$ sudo apt install ./daslang_0.6.4_amd64.deb

# on PATH: daslang, daslang-live; the SDK tree sits in /opt/daslang

$ daslang --version

# 1 — grab a pre-built binary

$ open https://github.com/GaijinEntertainment/daScript/releases

# pick the archive for your platform, unzip, add to PATH

# 2 — verify it runs

$ daslang --version

$ daslang hello.das

# 3 — (optional) JIT to native via LLVM for max speed

$ daslang -jit hello.das

# requires CMake ≥ 3.15 and a C++17 compiler

$ git clone https://github.com/GaijinEntertainment/daScript.git daslang

$ cd daslang && git submodule update --init --recursive

$ cmake -B build -S . -DCMAKE_BUILD_TYPE=Release

$ cmake --build build --config Release -j 8

# the binary lands in ./build/daslang

$ ./build/daslang hello.das

§ 05 packages

A package manager that compiles in.

daspkg is the daslang package manager. Bindings for Dear ImGui, the Claude API, Telegram bots — one command, no accounts. Publishing is a single CLI call against an open index repo.

browse daspkg → cli docs

index · github.com/borisbat/daspkg-index

$ daspkg install dasImguiNodeEditor

fetching dasImguiNodeEditor@latest from github.com/borisbat/dasImguiNodeEditor

building native bindings…

✓ installed dasImguiNodeEditor · dasImgui already in-tree

dasImgui

gui · imgui

Dear ImGui bindings for daslang — now ships built-in, nothing to install.

das-claude

ai · api

Typed bindings for the Anthropic Claude Messages API.