public static PropertyInfo GetPropertyAccess(this LambdaExpression propertyAccessExpression)
{
Debug.Assert(propertyAccessExpression.Parameters.Count == 1);
var parameterExpression = propertyAccessExpression.Parameters.Single();
var propertyInfo = parameterExpression.MatchSimplePropertyAccess(propertyAccessExpression.Body);
if (propertyInfo == null)
{
throw new ArgumentException(ResX.InvalidPropertyExpression(propertyAccessExpression), nameof(propertyAccessExpression));
}
var declaringType = propertyInfo.DeclaringType;
var parameterType = parameterExpression.Type;
if (declaringType != null &&
declaringType != parameterType &&
declaringType.GetTypeInfo().IsInterface &&
declaringType.GetTypeInfo().IsAssignableFrom(parameterType.GetTypeInfo()))
{
var propertyGetter = propertyInfo.GetMethod;
var interfaceMapping = parameterType.GetTypeInfo().GetRuntimeInterfaceMap(declaringType);
var index = Array.FindIndex(interfaceMapping.InterfaceMethods, p => p == propertyGetter);
var targetMethod = interfaceMapping.TargetMethods[index];
foreach (var runtimeProperty in parameterType.GetRuntimeProperties())
{
if (targetMethod == runtimeProperty.GetMethod)
{
return(runtimeProperty);
}
}
}
return(propertyInfo);
}
public static IReadOnlyList <PropertyInfo> GetPropertyAccessList(this LambdaExpression propertyAccessExpression)
{
Debug.Assert(propertyAccessExpression.Parameters.Count == 1);
var propertyPaths = MatchPropertyAccessList(propertyAccessExpression, (p, e) => e.MatchSimplePropertyAccess(p));
if (propertyPaths == null)
{
throw new ArgumentException(ResX.InvalidPropertiesExpression(propertyAccessExpression), nameof(propertyAccessExpression));
}
return(propertyPaths);
}
public static IReadOnlyList <PropertyInfo> GetComplexPropertyAccess(this LambdaExpression propertyAccessExpression)
{
Debug.Assert(propertyAccessExpression.Parameters.Count == 1);
var propertyPath
= propertyAccessExpression
.Parameters
.Single()
.MatchPropertyAccess(propertyAccessExpression.Body);
if (propertyPath == null)
{
throw new ArgumentException(ResX.InvalidComplexPropertyExpression(propertyAccessExpression));
}
return(propertyPath);
}
