FluentSeq provides a fluent interface for creating easy-to-read sequences, eliminating the need for lengthy if-else statements.
Successor of IegTools.Sequencer
- new architecture, state-based instead of transaction-based
FluentSeq provides a fluent interface for creating easy-to-read sequences,
eliminating the need for lengthy if-else statements.
The library is written in C# 13 and multi-targets
.NET 8.0 - .NET 10.0
.NET Standard 2.0/2.1
The library allows you to configure:
Sequences with States
different kinds of State-Triggers
Actions that can be executed on State-Entry, State-Exit or WhileInState
Validate a sequence on build to avoid misconfigurations (missing states, triggers, etc.)
The Test coverage for .NET 8.0, .NET 9.0 and .NET 10.0 is greater than 95%
States can be defined as strings, enums, int, objects, and so on.
Internally they will be stored as type SeqState.
var builder = new FluentSeq<TimerState>().Create(TimerState.Off)
.ConfigureState(TimerState.Off)
.Builder()
// or
var builder = new FluentSeq<string>().Create("Off")
.ConfigureState("Off")
.Builder()
The validation process ensures the sequence configuration is complete and adheres to the defined principles.
By default, validation is enabled but can be disabled either entirely or for specific states.
The sequence is validated during the build process.
To build a sequence: _sequence = builder.Build();
Validation Principles:
A sequence must have at least two configured states.
The initial state must be defined and configured (not null or empty).
Every state must have a TriggeredBy(...) method.
Every TriggeredBy().WhenInState(s)(...) must point to a configured state.
Validation could be disabled:
completely turn off validation
var builder = new FluentSeq<TimerState>().Create(TimerState.Off)
.DisableValidation()
.ConfigureState(TimerState.Off)
.Builder()
or with specifying states that shouldn't be validated:
var builder = new FluentSeq<TimerState>().Create(Enum.Off)
.DisableValidationForStates(Enum.State1, Enum.State2, ...)
.ConfigureState(Enum.Off)
.Builder()
