Return a negative integer, zero, or a positive integer if this object is less than, equal to, or greater than the specified object:
this < that => <0
this == that => 0
this > that => >0
This method may also be accessed via the < <= <=> >= and >
shortcut operators. If not overridden the default
implementation compares the toStr
representations. Also see docLang.
Examples:
3.compare(8) => -1
8.compare(3) => 1
8.compare(8) => 0
3 <=> 8 => -1 // shortcut for 3.compare(8)
Compare this object to the specified for equality. This
method may be accessed via the == and != shortcut operators.
If not overridden the default implementation compares for
reference equality using the === operator. If this method
is overridden, then hash() must also be overridden such that
any two objects which return true for equals() must return
the same value for hash(). This method must accept null and
return false.
Return a unique hashcode for this object. If a class overrides hash() then it must ensure if equals() returns true for any two objects then they have same hash code.
Return if debug level is enabled.
Return if error level is enabled.
Return if info level is enabled.
Return if warn level is enabled.
The log level field defines which log entries are reported versus ignored. Anything which equals or is more severe than the log level is logged. Anything less severe is ignored. If the level is set to silent, then logging is disabled.
The log level field defines which log entries are reported versus ignored. Anything which equals or is more severe than the log level is logged. Anything less severe is ignored. If the level is set to silent, then logging is disabled.
Return name of the log.
Get an immutable representation of this instance or throw NotImmutableErr if this object cannot be represented as an immutable:
Return name.
Trap a dynamic call for handling. Dynamic calls are invoked with the -> shortcut operator:
a->x a.trap("x", null)
a->x() a.trap("x", null)
a->x = b a.trap("x", [b])
a->x(b) a.trap("x", [b])
a->x(b, c) a.trap("x", [b, c])
The default implementation provided by Obj attempts to use reflection. If name maps to a method, it is invoked with the specified arguments. If name maps to a field and args.size is zero, get the field. If name maps to a field and args.size is one, set the field and return args[0]. Otherwise throw UnknownSlotErr.
This method called whenever an it-block is applied to an
object. The default implementation calls the function with this,
and then returns this.
StaticaddInstall a handler to receive callbacks on logging events. If the handler func is not immutable, then throw NotImmutableErr.
StaticechoWrite x.toStr to standard output followed by newline. If x
is null then print "null". If no argument is provided then
print an empty line.
Optionalx: JsObjStaticfindFind a registered log by name. If the log doesn't exist and checked is false then return null, otherwise throw Err.
Optionalchecked: booleanStaticgetFind an existing registered log by name or if not found then create a new registered Log instance with the given name. Name must be valid according to Uri.isName otherwise NameErr is thrown.
StatichandlersStaticlistStaticmakeCreate a new log by name. The log is added to the VM log
registry only if register is true. If register is true and
a log has already been created for the specified name then
throw ArgErr. Name must be valid according to Uri.isName
otherwise NameErr is thrown.
Staticremove
Log provides a simple, but standardized mechanism for logging.
See docLang::Logging for details and examples.