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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

hello.das fib.das generic.das

[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

interpreted AOT JIT

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

Grab a release. Or build from source.

Daslang is early packaged installers (brew, apt, scoop) are on the roadmap. For now: pre-built binaries on GitHub, or a CMake build straight from the repo. AOT compiles to a single C++ stub you link with your host.

github.com/GaijinEntertainment/daslang

github releases build from source

# 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.