/// <summary>Constructor.</summary>
/// <exception cref="ArgumentNullException">Thrown when one or more required arguments are <c>null</c></exception>
/// <exception cref="InvalidOperationException">Thrown when the requested operation is invalid.</exception>
/// <param name="root">The root.</param>
/// <param name="conditionEmitter">The condition emitter.</param>
/// <param name="contextType">Type of the context.</param>
public StateMachineEmitter([NotNull] StateSwitchBuilder <TComparand, TInput> root, [NotNull] IConditionEmitter <TComparand, TInput> conditionEmitter, Type contextType)
{
this.Root = root ?? throw new ArgumentNullException(nameof(root));
this.ConditionEmitter = conditionEmitter ?? throw new ArgumentNullException(nameof(conditionEmitter));
this.InputParameter = Expression.Parameter(typeof(TInput), "input");
this.StateParameter = Expression.Parameter(typeof(int).MakeByRefType(), "state");
this.ContextParameter = Expression.Parameter(contextType ?? typeof(object).MakeByRefType(), "context");
this.StartLabel = Expression.Label("start");
if (this.GetIdForBuilder(this.Root) != 0)
{
throw new InvalidOperationException("Internal error: Unexpected root ID");
}
}
/// <summary>Constructor.</summary>
/// <exception cref="ArgumentNullException">Thrown when one or more required arguments are <c>null</c></exception>
/// <exception cref="InvalidOperationException">Thrown when the requested operation is invalid.</exception>
/// <param name="root">The root.</param>
/// <param name="conditionEmitter">The condition emitter.</param>
public StateMachineEmitter([NotNull] StateSwitchBuilder <TComparand, TInput> root, [NotNull] IConditionEmitter <TComparand, TInput> conditionEmitter) : this(root, conditionEmitter, null)
{
}
