Log

public struct Log

For logging messages on console.

The log format is <tag><Level> <message> [with error <error>]: Examples:

  [MapCache][DEBUG] Welcome to MapCache
  [MapCache][ERROR] Could not download file with error Unknown address


                    
                    
                    log(_:_:_:)

The actual method that prints.

Swift

fileprivate static func log(_ level: Level, _ message: @autoclosure () -> String, _ error: Error? = nil)

`level`	log level to show
`message`	message to show
`error`	error to show if any on addition to the message. Uses the pattern `{message} with error {error}`


                    
                    
                    debug(message:error:)

For displaying messages. Useful during development of this package.

Example:

Log.debug("Hello world") // prints: [MapCache][DEBUG] Hello word

These messages are displayed only if DEBUG is defined.

Swift

static func debug(message: @autoclosure () -> String, error: Error? = nil)

`message`	message to display
`error`	error to display if any.


                    
                    
                    error(message:error:)

These messages are displayed independently of the debug mode. Used to provide useful information on exceptional situations to library users. Example:

Log.error("Could not download tile", error) // prints: [MapCache][ERROR] Could not download tile with error No internet connection.

Swift

static func error(message: @autoclosure () -> String, error: Error? = nil)

`message`	message to display
`error`	error to display