with()

in tapestry-framework/src/js/dojo-0.4.3-custom-4.1.6/dojo2.js.uncompressed.js [1748:1876]
124 lines of code
25 McCabe index (conditional complexity)

	with(dojo.date.dateParts){
		switch(interv){
			case YEAR:
				delta = yeaDiff;
				break;
			case QUARTER:
				var mA = dtA.getMonth();
				var mB = dtB.getMonth();
				// Figure out which quarter the months are in
				var qA = Math.floor(mA/3) + 1;
				var qB = Math.floor(mB/3) + 1;
				// Add quarters for any year difference between the dates
				qB += (yeaDiff * 4);
				delta = qB - qA;
				break;
			case MONTH:
				delta = monDiff;
				break;
			case WEEK:
				// Truncate instead of rounding
				// Don't use Math.floor -- value may be negative
				delta = parseInt(weeDiff);
				break;
			case DAY:
				delta = dayDiff;
				break;
			case WEEKDAY:
				var days = Math.round(dayDiff);
				var weeks = parseInt(days/7);
				var mod = days % 7;

				// Even number of weeks
				if (mod == 0) {
					days = weeks*5;
				}
				// Weeks plus spare change (< 7 days)
				else {
					var adj = 0;
					var aDay = dtA.getDay();
					var bDay = dtB.getDay();
	
					weeks = parseInt(days/7);
					mod = days % 7;
					// Mark the date advanced by the number of
					// round weeks (may be zero)
					var dtMark = new Date(dtA);
					dtMark.setDate(dtMark.getDate()+(weeks*7));
					var dayMark = dtMark.getDay();
					// Spare change days -- 6 or less
					// ----------
					// Positive diff
					if (dayDiff > 0) {
						switch (true) {
							// Range starts on Sat
							case aDay == 6:
								adj = -1;
								break;
							// Range starts on Sun
							case aDay == 0:
								adj = 0;
								break;
							// Range ends on Sat
							case bDay == 6:
								adj = -1;
								break;
							// Range ends on Sun
							case bDay == 0:
								adj = -2;
								break;
							// Range contains weekend
							case (dayMark + mod) > 5:
								adj = -2;
								break;
							default:
								// Do nothing
								break;
						}
					}
					// Negative diff
					else if (dayDiff < 0) {
						switch (true) {
							// Range starts on Sat
							case aDay == 6:
								adj = 0;
								break;
							// Range starts on Sun
							case aDay == 0:
								adj = 1;
								break;
							// Range ends on Sat
							case bDay == 6:
								adj = 2;
								break;
							// Range ends on Sun
							case bDay == 0:
								adj = 1;
								break;
							// Range contains weekend
							case (dayMark + mod) < 0:
								adj = 2;
								break;
							default:
								// Do nothing
								break;
						}
					}
					days += adj;
					days -= (weeks*2);
				}
				delta = days;

				break;
			case HOUR:
				delta = houDiff;
				break;
			case MINUTE:
				delta = minDiff;
				break;
			case SECOND:
				delta = secDiff;
				break;
			case MILLISECOND:
				delta = msDiff;
				break;
			default:
				// Do nothing
				break;
		}
	}