public ConstantProvider(QueryContext context, MemberExpression expr)
{
var constant = (ConstantExpression)expr.Expression;
Value = constant.Type.GetField(expr.Member.Name).GetValue(constant.Value);
ParamName = context.NextParam(this);
}
public ParameterProvider(QueryContext context, ParameterExpression expr)
{
ExpressionName = expr.Name;
ParamName = context.NextParam(this);
}
public ConstantProvider(QueryContext context, object value)
{
Value = value;
ParamName = context.NextParam(this);
}
public ConstantProvider(QueryContext context, ConstantExpression expr)
{
Value = expr.Value;
ParamName = context.NextParam(this);
}