function describeTextureCall()

in src/webgpu/shader/execution/expression/call/builtin/texture_utils.ts [4827:4866]
40 lines of code
18 McCabe index (conditional complexity)

function describeTextureCall<T extends Dimensionality>(call: TextureCall<T>): string {
  const args: string[] = [];
  if (isBuiltinGather(call.builtin) && call.componentType) {
    args.push(`component: ${wgslExprFor(call.component!, call.componentType)}`);
  }
  args.push('texture: T');
  if (builtinNeedsSampler(call.builtin)) {
    args.push('sampler: S');
  }
  for (const name of kTextureCallArgNames) {
    const value = call[name];
    if (value !== undefined && name !== 'component') {
      if (name === 'coords') {
        const derivativeWGSL = builtinNeedsDerivatives(call.builtin)
          ? ` + derivativeBase * derivativeMult(${
              call.derivativeMult ? wgslExprFor(call.derivativeMult, call.coordType) : '1'
            })`
          : '';
        args.push(`${name}: ${wgslExprFor(value, call.coordType)}${derivativeWGSL}`);
      } else if (name === 'derivativeMult') {
        // skip this - it's covered in 'coords'
      } else if (name === 'ddx' || name === 'ddy') {
        args.push(`${name}: ${wgslExprFor(value, call.coordType)}`);
      } else if (name === 'mipLevel') {
        args.push(`${name}: ${wgslExprFor(value, call.levelType!)}`);
      } else if (name === 'arrayIndex') {
        args.push(`${name}: ${wgslExprFor(value, call.arrayIndexType!)}`);
      } else if (name === 'bias') {
        args.push(`${name}: ${wgslExprFor(value, 'f')}`);
      } else if (name === 'sampleIndex') {
        args.push(`${name}: ${wgslExprFor(value, call.sampleIndexType!)}`);
      } else if (name === 'depthRef') {
        args.push(`${name}: ${wgslExprFor(value, 'f')}`);
      } else {
        args.push(`${name}: ${wgslExpr(value)}`);
      }
    }
  }
  return `${call.builtin}(${args.join(', ')})`;
}