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Class `std.experimental.logger.nulllogger.NullLogger`

The NullLogger will not process any log messages.


						
				class NullLogger
				
  : Logger
				;

In case of a log message with LogLevel.fatal nothing will happen.

Constructors

Name	Description
`this` (lv)	The default constructor for the `NullLogger`.

Properties

Name	Type	Description
`fatalHandler`[get, set]	`void delegate()`	This `delegate` is called in case a log message with `LogLevel.fatal` gets logged.
`logLevel`[get, set]	`LogLevel`	The `LogLevel` determines if the log call are processed or dropped by the `Logger`. In order for the log call to be processed the `LogLevel` of the log call must be greater or equal to the `LogLevel` of the `logger`.

Methods

Name	Description
`factory` (classname)	Create instance of class specified by the fully qualified name classname. The class must either have no constructors or have a default constructor.
`forwardMsg` (payload)	This method allows forwarding log entries from one logger to another.
`log` (ll, condition, args)	This method logs data with the `LogLevel` of the used `Logger`.
`log` (ll, args)	This function logs data to the used `Logger` with a specific `LogLevel`.
`log` (condition, args)	This function logs data to the used `Logger` depending on a explicitly passed condition with the `LogLevel` of the used `Logger`.
`log` (args)	This function logs data to the used `Logger` with the `LogLevel` of the used `Logger`.
`logf` (ll, condition, msg, args)	This function logs data to the used `Logger` with a specific `LogLevel` and depending on a condition in a `printf`-style manner.
`logf` (ll, msg, args)	This function logs data to the used `Logger` with a specific `LogLevel` in a `printf`-style manner.
`logf` (condition, msg, args)	This function logs data to the used `Logger` depending on a condition with the `LogLevel` of the used `Logger` in a `printf`-style manner.
`logf` (msg, args)	This method logs data to the used `Logger` with the `LogLevel` of the this `Logger` in a `printf`-style manner.
`opCmp` (o)	Compare with another Object obj.
`opEquals` (o)	Test whether `this` is equal to `o`. The default implementation only compares by identity (using the `is` operator). Generally, overrides and overloads for `opEquals` should attempt to compare objects by their contents. A class will most likely want to add an overload that takes your specific type as the argument and does the content comparison. Then you can override this and forward it to your specific typed overload with a cast. Remember to check for `null` on the typed overload.
`toHash` ()	Compute hash function for Object.
`toString` ()	Convert Object to a human readable string.
`finishLogMsg` ()	Signals that the message has been written and no more calls to `logMsgPart` follow.
`logMsgPart` (msg)	Logs a part of the log message.
`writeLogMsg` (payload)	A custom logger must implement this method in order to work in a `MultiLogger` and `ArrayLogger`.

Inner structs

Name	Description
`LogEntry`	LogEntry is a aggregation combining all information associated with a log message. This aggregation will be passed to the method writeLogMsg.

Aliases

Name	Description
`critical`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`criticalf`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`error`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`errorf`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`fatal`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`fatalf`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`info`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`infof`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`trace`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`tracef`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`warning`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`warningf`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.

Templates

Name	Description
`memLogFunctions`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.

Example

import std.experimental.logger.core : LogLevel;
auto nl1 = new NullLogger(LogLevel.all);
nl1.info("You will never read this.");
nl1.fatal("You will never read this, either and it will not throw");

API Documentation

Class `std.experimental.logger.nulllogger.NullLogger`

Constructors

Properties

Methods

Inner structs

Aliases

Templates

Example

Authors

License

API Documentation

Class std.experimental.logger.nulllogger.NullLogger

Constructors

Properties

Methods

Inner structs

Aliases

Templates

Example

Authors

License

Class `std.experimental.logger.nulllogger.NullLogger`