Failure class

Represents a failure in an operation, usually as the Left value of an Either.

Contains a human-readable error message, optional machine-readable code, and optional structured details.

Constructors

Failure([String message = 'An unexpected error occurred.', String? code, GMap details = const {}])
Creates a Failure with an optional message. Defaults to a generic error message.
const

Properties

code → String?
An optional stable code for programmatic error handling.
final
details → GMap
Optional structured metadata describing the failure.
final
hashCode → int
The hash code for this object.
no setteroverride
message → String
The error message describing the failure.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
override

Operators

operator ==(Object other) → bool
The equality operator.
override