| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 27 of 53 | 49% | 1 of 2 | 50% | 4 | 5 | 2 | 4 | 3 | 4 |
| compileKeySubscript$update(String) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| compileKeySubscript(String) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| compileKeySubscript_() | | 0% | n/a | 1 | 1 | 0 | 0 | 1 | 1 | |
| compileKeySubscript(String, Callable) | | 93% | | 50% | 1 | 2 | 1 | 3 | 0 | 1 |