daedalus-macros

Procedural macros that generate node descriptors/handlers and GPU bindings with minimal boilerplate.

Macros

• #[node]: annotate a function to generate a node descriptor, handler, and registration glue (IDs, ports, compute affinity, state).
• #[derive(GpuBindings)]: derive WGSL binding packs for GPU shaders with binding inference and workgroup hints.
• #[derive(GpuStateful)]: mark POD structs for persistent GPU state buffers.

Shader binding derive (high level)

• #[gpu(spec(src = "...", entry = "...", workgroup_size = N))] on the binding struct points to WGSL.
• Field attributes: #[gpu(binding = N)], texture2d(format = "...", write)], uniform, storage(read|read_write|write), sampler(...), state.
• Inference: WGSL bindings/workgroup sizes inferred when not explicitly provided; compile-time validation against WGSL.

Node macro (high level)

• Attributes for id, inputs/outputs, compute affinity, shaders(...), state(...), capabilities, and plugin glue.
• Generates descriptor + handler registry entries; integrates with registry/planner/runtime.

Testing

• Trybuild UI tests under crates/nodes/tests/ui exercise diagnostics and macro outputs.