#ifndef __Error_h #define __Error_h #include "SchemeObject.h" @interface Error: SchemeObject { string type, message; } + (id) type: (string) t message: (string) m by: (SchemeObject) o; + (id) type: (string) t message: (string) m; - (id) initWithType: (string) t message: (string) m by: (SchemeObject) o; - (string) type; - (string) message; @end #endif //__Error_h