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LanguageNotes
ABAPThe following keywords increase the complexity by one: AND, CATCH, CONTINUE, DO, ELSEIF, IF, LOOP, LOOPAT, OR, PROVIDE, SELECT…ENDSELECT, TRY, WHEN, WHILE.
C/C++

The complexity gets incremented by one for: function definitions, while, do while, for, throw statements, return (except if it is the last statement of a function), swtich, case, default, && operator, || operator, ? ternary operator, catch, break, continue, goto.

CobolThe following commands increase the complexity by one: ALSO, ALTER, AND, DEPENDING, END_OF_PAGE, ENTRY, EOP, EXCEPTION, EXIT, GOBACK, CONTINUE, IF, INVALID, OR, OVERFLOW, SIZE, STOP, TIMES, UNTIL, USE, VARYING, WHEN, EXEC CICS HANDLE, EXEC CICS LINK, EXEC CICS XCTL and EXEC CICS RETURN.
Java
  • Keywords incrementing the complexity: if, for, while, case, catch, throw, return (that is not the last statement of a method), &&, ||, ?, else, default, and finally keywords do not increment the complexity. On the other hand, a simple method with a switch statement and a huge block of case statements can have a surprisingly high complexity value (still it has the same value when converting a switch block to an equivalent sequence of if statements).
  • accessors are not considered as methods and so do not increment the complexity


Example: the following method has a complexity of 5

PL/IThe following keywords increase the complexity by one: PROC, PROCEDURE, GOTO, GO TO, RETURN, DO, IF, WHEN, |, !, |=, !=, &, &=.
PL/SQLThe complexity gets incremented by one for: the main PL/SQL anonymous block (not inner ones), create procedure, create trigger, procedure_definition, basic loop statement, when_clause_statement (the “when” of simple_case_statement and searched_case_statement), continue_statement, cursor_for_loop_statement, continue_exit_when_clause (The “WHEN” part of the continue and exit statements), exception_handler (every individual “WHEN”), exit_statement, for_loop_statement, forall_statement, if_statement, elsif_clause, raise_statement, return_statement, while_loop_statement, and_expression (“and” reserved word used within PL/SQL expressions), or_expression (“or” reserved word used within PL/SQL expressions), when_clause_expression (the “when” of simple_case_expression and searched_case_expression)
VB.NETThe complexity gets incremented by one for: method or constructor declaration (Sub, Function), AndAlso, Case, Continue, End, Error, Exit, If, Loop, On Error, GoTo, OrElse, Resume, Return (except if it is the last statement of a function), Stop, Throw, Try.
WebComplexity of the web page is measured by counting the decision tags (such as if and forEach) and boolean operators in expressions ("&&" and "||"), plus one for the body of the document. The decision tags and the operators are configurable throught the "Complexity" rule.
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