/// <summary>
/// Creates a new fetcher for a field
/// </summary>
/// <param name="field">Field info</param>
public ExpressionTreeFetcher(FieldInfo field) : base(field.Name)
{
Kind = FetcherKind.Field;
_getFunc = Getters.GetOrAdd(field, f => ExpressionAccessors.BuildGetAccessor((FieldInfo)f));
_setFunc = Setters.GetOrAdd(field, f => (((FieldInfo)f).Attributes & FieldAttributes.InitOnly) == 0 ? ExpressionAccessors.BuildSetAccessor((FieldInfo)f) : EmptySetter);
_invoker = EmptyInvoker;
}
/// <summary>
/// Creates a new fetcher for a method
/// </summary>
/// <param name="method">Field info</param>
public ExpressionTreeFetcher(MethodInfo method) : base(method.Name)
{
Kind = FetcherKind.Method;
_getFunc = EmptyGetter;
_setFunc = EmptySetter;
_invoker = Invokers.GetOrAdd(method, minfo => ExpressionAccessors.BuildMethodAccessor(minfo));
}
/// <summary>
/// Creates a new fetcher for a property
/// </summary>
/// <param name="property">Property info</param>
public ExpressionTreeFetcher(PropertyInfo property) : base(property.Name)
{
Kind = FetcherKind.Property;
_getFunc = Getters.GetOrAdd(property, prop => ((PropertyInfo)prop).CanRead ? ExpressionAccessors.BuildGetAccessor((PropertyInfo)prop) : EmptyGetter);
_setFunc = Setters.GetOrAdd(property, prop => ((PropertyInfo)prop).CanWrite ? ExpressionAccessors.BuildSetAccessor((PropertyInfo)prop) : EmptySetter);
_invoker = EmptyInvoker;
}