protected override Expression VisitMember(MemberExpression node)
{
EnsureTypeInitialized(node.Member.DeclaringType);
CompiledExpression cp;
if (map.TryGetValue(node.Member, out cp))
{
return(VisitCompiledExpression(cp, node.Expression));
}
if (typeof(CompiledExpression).IsAssignableFrom(node.Member.DeclaringType))
{
return(VisitCompiledExpression(cp, node.Expression));
}
return(base.VisitMember(node));
}
/// <summary>
/// Walk up the inheritance heirarchy searching for a compiled expression attached to a
/// property of the given name
/// </summary>
/// <param name="memberName">Name of the property to search for</param>
/// <param name="type">Type of the property to search against</param>
/// <returns>Compiled expression if found or null if not</returns>
private CompiledExpression FindCompiledExpressionMember(String memberName, Type type)
{
Boolean useOverride = true;
while (type != typeof(Object) && type != null)
{
MemberInfo[] mis = type.GetMember(memberName, BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
if (mis != null && mis.Length > 0)
{
EnsureTypeInitialized(type);
if (mis[0] != null && map.TryGetValue(mis[0], out CompiledExpression cp))
{
cp.UseOverride = useOverride;
return(cp);
}
}
type = type.BaseType;
useOverride = false;
}
return(null);
}
protected override Expression VisitMember(MemberExpression node)
{
if (node == null)
{
throw new ArgumentNullException(nameof(node));
}
EnsureTypeInitialized(node.Member.DeclaringType);
if (map.TryGetValue(node.Member, out CompiledExpression cp))
{
return(VisitCompiledExpression(cp, node.Expression));
}
if (typeof(CompiledExpression).GetTypeInfo().IsAssignableFrom(node.Member.DeclaringType.GetTypeInfo()))
{
return(VisitCompiledExpression(cp, node.Expression));
}
return(base.VisitMember(node));
}