CrossTL v2.0.0

A ground-up expansion of the CrossGL language and all 9 translation backends.

Highlights

CrossGL language v2: Generics, traits, algebraic enums, pattern matching, do-while loops, double-precision types
Validation layer: 2700+ lines of texture intrinsic, stage, and resource validation
Plugin system: Backends self-register via BackendSpec/SourceSpec for third-party extensibility
9 backends massively expanded: 10-20x more generated code surface (GLSL, HLSL, Metal, SPIR-V, CUDA, HIP, Mojo, Rust, Slang)
7,983 passing tests (up from ~200 at v1.0.0)
Full CI matrix: Cross-platform (Linux/Windows/macOS) × Python 3.8–3.13 × per-backend

.cgl files using new syntax (generics, traits, match) are not backward-compatible with v1.x parsers
Internal AST restructured: ASTNode gained child_nodes(), walk(), bind_parent_links(); ShaderNode.stages is now a StageMap
Direct internal module imports (from crosstl.translator.codegen import X) removed — use the registry or crosstl.translate()

pip install crosstl==2.0.0

All backends support core CrossGL. Advanced features with partial coverage:

Feature	Not yet supported in
Generic functions	SPIR-V, CUDA, HIP, Mojo, Slang
Geometry stage	Metal, CUDA, HIP, Mojo, Rust
Tessellation stage	OpenGL, Metal, CUDA, HIP, Mojo, Rust
Mesh/Task stage	CUDA, HIP, Mojo, Rust, Slang