| typedef int Int; | |
| @interface I1 | |
| @end | |
| // Matching category | |
| @interface I1 (Cat1) | |
| - (Int)method0; | |
| @end | |
| // Matching class extension | |
| @interface I1 () | |
| - (Int)method1; | |
| @end | |
| // Mismatched category | |
| @interface I1 (Cat2) | |
| - (float)method2; | |
| @end | |
| @interface I2 | |
| @end | |
| // Mismatched class extension | |
| @interface I2 () | |
| - (float)method3; | |
| @end |