/// <summary>
/// Gets the value of a static property.
/// </summary>
/// <param name="type">The <see cref="Type"/> with the target property.</param>
/// <param name="propertyName">The name of the property to retrieve.</param>
/// <returns>The value if the property exists, otherwise <see langword="null"/>.</returns>
internal static object GetProperty(
Type type,
string propertyName)
{
if (type == null)
{
return(null);
}
PropertyInfo typeProp = null;
try
{
typeProp = type
.GetProperty(
propertyName,
BindingFlags.Static | BindingFlags.Public);
}
catch (AmbiguousMatchException)
{
// Treat ambiguous matches as if the property wasn't found
}
return(AdapterUtil.NullIfEmpty(typeProp?.GetValue(null)));
}
private void ProcessStaticProperties(Type type)
{
Array.ForEach(
type.GetProperties(BindingFlags.Static | BindingFlags.Public),
property =>
{
AddTemplateArgument(
property.Name,
AdapterUtil.NullIfEmpty(
property.GetValue(null)));
});
}
/// <summary>
/// Gets the value of a property if it exists.
/// </summary>
/// <param name="interpreter">The current interpreter passed by Antlr.</param>
/// <param name="frame">The current frame passed by Antlr.</param>
/// <param name="obj">The target of the property binding</param>
/// <param name="property">The property passed by Antlr.</param>
/// <param name="propertyName">The target property name.</param>
/// <returns>The value of the property if it exists, otherwise <see langword="null"/>.</returns>
public override object GetProperty(
Interpreter interpreter,
TemplateFrame frame,
object obj,
object property,
string propertyName)
{
var psObject = obj as PSObject;
if (psObject == null)
{
return(base.GetProperty(interpreter, frame, obj, property, propertyName));
}
// Check for static property matches if we're processing a type,
// continue to instance properties if binding fails.
if (psObject.BaseObject is Type type)
{
var typeResult = TypeAdapter.GetProperty(type, propertyName);
if (typeResult != null)
{
return(typeResult);
}
}
var result = psObject.Properties.FirstOrDefault(p => p.Name == propertyName);
if (result != null)
{
return(AdapterUtil.NullIfEmpty(result.Value));
}
var method = psObject.Methods.FirstOrDefault(
m =>
{
return
(m.Name == string.Concat("Get", propertyName) &&
m.OverloadDefinitions.FirstOrDefault().Contains(@"()") &&
!m.OverloadDefinitions.FirstOrDefault().Contains("void"));
});
return(AdapterUtil.NullIfEmpty(method?.Invoke()));
}
