resources/sksl/errors/InvalidMainParameters.compute - skia - Git at Google

 void main(in int x, out int y) {
     y = x;
 }

 /*%%*
 shader 'main' must have zero parameters
 *%%*/
	void main(in int x, out int y) {
	y = x;
	}

	/%%
	shader 'main' must have zero parameters
	%%/