public override Expression <Func <T, bool> > ToExpression()
{
var spec = _specification.ToExpression();
var parameter = Expression.Parameter(typeof(T));
var body = Expression.Not(spec.Body);
body = (UnaryExpression) new ParameterReplacer(parameter).Visit(body);
return(Expression.Lambda <Func <T, bool> >(
body ?? throw new InvalidOperationException("Null expression body"), parameter));
}
public override Expression <Func <T, bool> > ToExpression()
{
var leftExpression = _leftSpecification.ToExpression();
var rightExpression = _rightSpecification.ToExpression();
var parameter = Expression.Parameter(typeof(T));
var body = Expression.AndAlso(leftExpression.Body, rightExpression.Body);
body = (BinaryExpression) new ParameterReplacer(parameter).Visit(body);
return(Expression.Lambda <Func <T, bool> >(
body ?? throw new InvalidOperationException("Null expression body"), parameter));
}
public IScenario <IPosition> Build()
{
return(new LiquidationScenario(_scenarioId, string.Empty, 10.0, _specification.ToExpression()));
}
