internal static ConstructorInvoker Constructor(Type type, BindingFlags bindingFlags, ConstructorInfo ctor, Type[] parameterTypes)
{
bindingFlags &= FasterflectFlags.InstanceAnyDeclaredOnly;
CtorInfo info = new CtorInfo(type, bindingFlags, parameterTypes);
ConstructorInvoker value = Constructors.Get(info);
if (value != null)
{
return(value);
}
if (ctor == null && (!type.IsValueType || parameterTypes.Length != 0))
{
ctor = ReflectLookup.Constructor(type, bindingFlags, parameterTypes) ?? throw new MissingMemberException(type.FullName, "ctor()");
}
value = (ConstructorInvoker) new CtorInvocationEmitter(type, ctor).GetDelegate();
Constructors.Insert(info, value);
return(value);
}
/// <summary>
/// Creates a delegate which can invoke the constructor whose parameter types are <paramref name="parameterTypes" />
/// and matching <paramref name="bindingFlags"/> on the given <paramref name="type"/>.
/// Leave <paramref name="parameterTypes"/> empty if the constructor has no argument.
/// </summary>
public static ConstructorInvoker DelegateForCreateInstance(this Type type, FasterflectFlags bindingFlags,
params Type[] parameterTypes)
{
return(Reflect.Constructor(ReflectLookup.Constructor(type, bindingFlags, parameterTypes)));
}
/// <summary>
/// Gets the constructor matching the given <paramref name="bindingFlags"/> and corresponding to the
/// supplied <paramref name="parameterTypes"/> on the given <paramref name="type"/>.
/// </summary>
/// <param name="type">The type to reflect on.</param>
/// <param name="bindingFlags">The search criteria to use when reflecting.</param>
/// <param name="parameterTypes">The types of the constructor parameters in order.</param>
/// <returns>The matching constructor or null if no match was found.</returns>
public static ConstructorInfo Constructor(this Type type, FasterflectFlags bindingFlags, params Type[] parameterTypes)
{
return(ReflectLookup.Constructor(type, bindingFlags, parameterTypes));
}
/// <summary>
/// Gets the constructor corresponding to the supplied <paramref name="parameterTypes"/> on the
/// given <paramref name="type"/>.
/// </summary>
/// <param name="type">The type to reflect on.</param>
/// <param name="parameterTypes">The types of the constructor parameters in order.</param>
/// <returns>The matching constructor or null if no match was found.</returns>
public static ConstructorInfo Constructor(this Type type, params Type[] parameterTypes)
{
return(ReflectLookup.Constructor(type, parameterTypes));
}
