LogEntryFormat class abstract interface

The text of an entry for output: to the console (ConsoleSink.format), to a file or a report (exportLog).

The format decides how to show an entry; the sink or export decides where to write it. So one format prints both to the console and to a file (ConsoleSink(format: LogExportFormat.jsonLines) gives structured output for a server), and changing how entries look in the console does not require subclassing the sink: passing another format is enough.

Built-in formats: ConsoleLogFormat (a line with level icon, tags and stack trace), LogExportFormat (report text, JSON lines), and in Flutter FlutterConsoleFormat with Flutter error diagnostics.

Implementers

• ConsoleLogFormat

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

format(LogEntry entry) → String?

The text of entry without a trailing newline, possibly multi-line (stack trace). null means the entry is not printed: for example, the console does not show a Flutter error with FlutterErrorDetails.silent outside debug.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited