ComposablePrinter class

A LogPrinter that formats records through a composable decorator pipeline.

Construction

decorators are applied to a fresh LogStyle at construction time. The resulting style is immutable for the lifetime of the printer — mutation after construction is not supported.

Pipeline

LogEntry
  → ContentExtractor.extract()   (parse sections, className, methodName)
  → StyleResolver.resolve*()     (map LogStyle flags → ResolvedStyle)
  → LogRenderer.render()         (assemble lines)

Output

output defaults to print and can be overridden for testing.

Constructors

ComposablePrinter(List<LogDecorator> decorators, {int methodCount = defaultMethodCount, int? errorMethodCount, List<String> excludePaths = const [], bool showAsyncGaps = false, bool? suppressTypeNames, LogOutput output = print})

Tuning for the extraction stage:

Properties

decorators → List<LogDecorator>

The decorators applied at construction to build style.

final

hashCode → int

The hash code for this object.

no setterinherited

output → LogOutput

Sink for formatted lines. Defaults to print.

final

runtimeType → Type

A representation of the runtime type of the object.

no setterinherited

style ↔ LogStyle

The merged LogStyle produced by applying all decorators.

latefinal

Methods

dispose() → void

Releases any resources held by this printer (timers, file handles, network sockets, etc.).

override

format(LogEntry entry) → List<String>

Formats entry into a flat list of output lines without emitting them.

log(LogEntry entry) → void

Emits entry to this printer's destination.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.