Coverage for metrics / cyclomatic / typescript.py: 100%

1"""McCabe cyclomatic complexity for TypeScript.""" 

2 

3from __future__ import annotations 

4 

5from metrics.cyclomatic.shared import ( 

6 create_cyclomatic_computer, 

7 create_cyclomatic_wrapper, 

8) 

9 

10 

11_TS_SKIP_TYPES = { 

12 "function_declaration", 

13 "function_expression", 

14 "method_definition", 

15 "generator_function_declaration", 

16 "class_declaration", 

17 "class_expression", 

18 "arrow_function", 

19} 

20 

21_TS_DECISION_TYPES = { 

22 "if_statement", 

23 "for_statement", 

24 "for_in_statement", 

25 "while_statement", 

26 "do_statement", 

27 "switch_case", 

28 "catch_clause", 

29 "ternary_expression", 

30} 

31 

32_TS_LOGICAL_OPS = {"&&", "||", "??"} 

33 

34 

35def _ts_skip_check(child, top_func) -> bool: 

36 """Skip nested function declarations.""" 

37 if child.type in _TS_SKIP_TYPES and child is not top_func: 

38 return True 

39 return False 

40 

41 

42_count_decisions = create_cyclomatic_computer( 

43 _ts_skip_check, _TS_DECISION_TYPES, _TS_LOGICAL_OPS 

44) 

45compute_cyclomatic_ts = create_cyclomatic_wrapper(_count_decisions)