protected override Expression VisitMethodCall(MethodCallExpression m)
{
if (m.IsIfMethod())
{
Expression predicate = m.Arguments[1].RemoveCastToObject();
Expression result = new MemberAccessNullPropagateVisitor().Rewrite(predicate);
BinaryExpression conditionPredicate = Expression.Equal(result, Expression.Constant(result.Type.GetDefaultValue(), result.Type));
return Expression.Condition(conditionPredicate, Expression.Constant(m.Arguments[0].Type.GetDefaultValue(), m.Arguments[0].Type), m.Arguments[0]);
}
return base.VisitMethodCall(m);
}
protected override Expression VisitMethodCall(MethodCallExpression m)
{
if (m.IsIfMethod())
{
Expression predicate = m.Arguments[1].RemoveCastToObject();
Expression result = new MemberAccessNullPropagateVisitor().Rewrite(predicate);
BinaryExpression conditionPredicate = Expression.Equal(result, Expression.Constant(result.Type.GetDefaultValue(), result.Type));
return(Expression.Condition(conditionPredicate, Expression.Constant(m.Arguments[0].Type.GetDefaultValue(), m.Arguments[0].Type), m.Arguments[0]));
}
return(base.VisitMethodCall(m));
}
protected override Expression VisitMethodCall(MethodCallExpression m)
{
if (m.IsSelectHtmlMethod())
{
Expression iterator = m.Arguments[0];
Expression nullPropagatingIterator = new MemberAccessNullPropagateVisitor().Rewrite(iterator);
PropertyPath iteratorPath = CreatePropertyPath(iterator);
Expression iteratorRoot = GetIteratorRoot(iterator);
Expression rootInstanceParameter = iteratorRoot ?? Expression.Constant(null, typeof(object));
ConstantExpression propertyPathParameter = Expression.Constant(iteratorPath);
MethodCallExpression callExpression = Expression.Call(m.Method,
nullPropagatingIterator,
rootInstanceParameter,
propertyPathParameter,
Visit(m.Arguments[3]));
return callExpression;
}
return base.VisitMethodCall(m);
}
protected override Expression VisitMethodCall(MethodCallExpression m)
{
if (m.IsSelectHtmlMethod())
{
Expression iterator = m.Arguments[0];
Expression nullPropagatingIterator = new MemberAccessNullPropagateVisitor().Rewrite(iterator);
PropertyPath iteratorPath = CreatePropertyPath(iterator);
Expression iteratorRoot = GetIteratorRoot(iterator);
Expression rootInstanceParameter = iteratorRoot ?? Expression.Constant(null, typeof(object));
ConstantExpression propertyPathParameter = Expression.Constant(iteratorPath);
MethodCallExpression callExpression = Expression.Call(m.Method,
nullPropagatingIterator,
rootInstanceParameter,
propertyPathParameter,
Visit(m.Arguments[3]));
return(callExpression);
}
return(base.VisitMethodCall(m));
}
