What is the reason to make them as top-level variable instead of as static fields to the Logger class?

[rockyoung]

logging/lib/src/logger.dart

Line 11 in 575781e

bool hierarchicalLoggingEnabled = false;

logging/lib/src/logger.dart

Line 16 in 575781e

Level recordStackTraceAtLevel = Level.OFF;

// Obviously below way should be more clear.
Logger.hierarchicalLoggingEnabled = true;
Logger.recordStackTraceAtLevel = Level.OFF;

[rockyoung]

and the hierarchicalLoggingEnabled is designed for "allow fine-grain logging and configuration of loggers in a hierarchy", and when i read the source code at

logging/lib/src/logger.dart

Lines 202 to 206 in 575781e

	Logger? target = this;
	while (target != null) {
	target._publish(record);
	target = target.parent;
	}

it makes me confused, is that means when child logger is been set level with Level.ALL for example, the LogRecord will published to its parent even though the level of parent logger is Level.OFF? in other word, this behavior does not respect to the level of parent logger.

for the example in the README:

Logger.root.level = Level.ALL; // defaults to Level.INFO
Logger.root.onRecord.listen((record) {
  print('${record.level.name}: ${record.time}: ${record.message}');
});

it makes me to feel like we can control the log "globally" by seting the root level at some point.