resources/sksl/errors/OpaqueTypeInStruct.sksl - skia - Git at Google

 struct Bad { sampler x; };
 uniform Bad b;
 void main() {}

 /*%%*
 opaque type 'sampler' is not permitted in a struct
 *%%*/
	struct Bad { sampler x; };
	uniform Bad b;
	void main() {}

	/%%
	opaque type 'sampler' is not permitted in a struct
	%%/