public static MethodMap PrepareInvoke(Type type, string[] paramNames, Type[] parameterTypes,
object[] sampleParamValues)
{
SourceInfo sourceInfo = new SourceInfo(type, paramNames, parameterTypes);
MethodMap map = ctorMapCache.Get(sourceInfo);
if (map == null)
{
map = DetermineBestConstructorMatch(type, paramNames, parameterTypes, sampleParamValues);
ctorMapCache.Insert(sourceInfo, map);
}
return(map);
}
/// <summary>
/// Creates an instance of the given <paramref name="type"/> using the public properties of the
/// supplied <paramref name="sample"/> object as input.
/// This method will try to determine the least-cost route to constructing the instance, which
/// implies mapping as many properties as possible to constructor parameters. Remaining properties
/// on the source are mapped to properties on the created instance or ignored if none matches.
/// TryCreateInstance is very liberal and attempts to convert values that are not otherwise
/// considered compatible, such as between strings and enums or numbers, Guids and byte[], etc.
/// </summary>
/// <returns>An instance of <paramref name="type"/>.</returns>
public static object TryCreateInstance(this Type type, object sample)
{
Type sourceType = sample.GetType();
SourceInfo sourceInfo = sourceInfoCache.Get(sourceType);
if (sourceInfo == null)
{
sourceInfo = new SourceInfo(sourceType);
sourceInfoCache.Insert(sourceType, sourceInfo);
}
object[] paramValues = sourceInfo.GetParameterValues(sample);
MethodMap map = MapFactory.PrepareInvoke(type, sourceInfo.ParamNames, sourceInfo.ParamTypes, paramValues);
return(map.Invoke(paramValues));
}
