extract_bindings.ts

import {wgsl, linkBundle, bindBundle, extractBindings, bundleToAttributes} from "@use-gpu/shader/wgsl";

const bundle = bindBundle(wgsl`
struct VertexOut {
  @builtin(position) position : vec4f,
  @location(0) color : vec4f
}

struct Uniforms {
  modelViewProjectionMatrix : mat4x4<f32>,
}

@group(0) @binding(0) var<uniform> uniforms : Uniforms;

@vertex
fn main(
  @builtin(instance_index) instanceIdx : u32,
  @location(0) position: vec4f) -> VertexOut {
  var output : VertexOut;
  output.position = position;
  output.position.x += f32(instanceIdx);
  output.position = uniforms.modelViewProjectionMatrix * output.position;

  output.color = vec4f(0.0, 0.0, 0.1 * f32(instanceIdx+1), 1.0);
  return output;
}
`);

console.log("linked:", linkBundle(bundle));

// Crashes at
// > for (const d of externals) if (d.func ?? d.variable) {
// https://gitlab.com/unconed/use.gpu/-/blob/master/packages/shader/src/util/bundle.ts#L108
console.log("attributes:", bundleToAttributes(bundle));

// I also tried this and variants:
// console.log("bindings", extractBindings([[vertexMod], [fragMod]], "0"));
   
// tsc --module nodenext --target es2022  extract_bindings.ts && node extract_bindings.js