private bool AddOrUpdateConstructor(bool isInstance, IMethod orig)
{
var holder = _type as IHasConstructors;
if (holder == null)
{
return(false);
}
var cstr = holder.Constructors.FirstOrDefault(c =>
isInstance ? !c.Modifier.HasFlag(Modifier.Static) : c.Modifier == Modifier.Static);
if (cstr == null)
{
holder.Constructors.Add(cstr = new ConstructorImpl(null));
}
cstr.Visibility = orig.Visibility;
foreach (var parm in orig.Parameters)
{
var myParm = new ParameterImpl(parm.Name, parm.Type);
cstr.Parameters.Add(myParm);
}
if (!isInstance)
{
cstr.Modifier = Modifier.Static;
}
return(true);
}
private object CreateInstance(IJintVisitor visitor, JsInstance[] parameters)
{
ConstructorImpl constructorImpl = this.m_overloads.ResolveOverload(parameters, (Type[])null);
if (constructorImpl == null)
{
throw new JintException(string.Format("No matching overload found {0}({1})", (object)this.reflectedType.FullName, (object)string.Join(",", Array.ConvertAll <JsInstance, string>(parameters, (Converter <JsInstance, string>)(p => p.ToString())))));
}
return(constructorImpl(visitor.Global, parameters));
}
/// <summary>
/// Finds a best matched constructor and uses it to create a native object instance
/// </summary>
/// <param name="visitor">Execution visitor</param>
/// <param name="parameters">Parameters for a constructor</param>
/// <returns>A newly created native object</returns>
object CreateInstance(Jint.Expressions.IJintVisitor visitor, JsInstance[] parameters)
{
ConstructorImpl impl = m_overloads.ResolveOverload(parameters, null);
if (impl == null)
{
throw new JintException(
String.Format("No matching overload found {0}({1})",
reflectedType.FullName,
String.Join(",", Array.ConvertAll <JsInstance, string>(parameters, p => p.ToString()))
)
);
}
return(impl(visitor.Global, parameters));
}
public ConstructorImpl WrapConstructor(ConstructorInfo info, bool passGlobal)
{
if (info == null)
{
throw new ArgumentNullException(nameof(info));
}
lock (this.ctorCache)
{
ConstructorImpl constructorImpl;
if (this.ctorCache.TryGetValue(info, out constructorImpl))
{
return(constructorImpl);
}
}
LinkedList <ParameterInfo> linkedList = new LinkedList <ParameterInfo>((IEnumerable <ParameterInfo>)info.GetParameters());
DynamicMethod dynamicMethod = new DynamicMethod("clrConstructor", typeof(object), new Type[2] {
typeof(IGlobal), typeof(JsInstance[])
}, this.GetType());
ILGenerator ilGenerator = dynamicMethod.GetILGenerator();
ilGenerator.DeclareLocal(typeof(int));
if (passGlobal && linkedList.First != null && typeof(IGlobal).IsAssignableFrom(linkedList.First.Value.ParameterType))
{
linkedList.RemoveFirst();
ilGenerator.Emit(OpCodes.Ldarg_0);
ilGenerator.Emit(OpCodes.Isinst, typeof(IGlobal));
}
ilGenerator.Emit(OpCodes.Ldarg_1);
ilGenerator.Emit(OpCodes.Ldlen);
ilGenerator.Emit(OpCodes.Stloc_0);
int num = 0;
foreach (ParameterInfo parameterInfo in linkedList)
{
ilGenerator.Emit(OpCodes.Ldarg_0);
ilGenerator.EmitCall(OpCodes.Call, typeof(IGlobal).GetProperty("Marshaller").GetGetMethod(), (Type[])null);
Label label1 = ilGenerator.DefineLabel();
Label label2 = ilGenerator.DefineLabel();
ilGenerator.Emit(OpCodes.Ldloc_0);
ilGenerator.Emit(OpCodes.Ldc_I4, num);
ilGenerator.Emit(OpCodes.Ble, label1);
ilGenerator.Emit(OpCodes.Ldarg_1);
ilGenerator.Emit(OpCodes.Ldc_I4, num);
ilGenerator.Emit(OpCodes.Ldelem, typeof(JsInstance));
ilGenerator.Emit(OpCodes.Br, label2);
ilGenerator.MarkLabel(label1);
ilGenerator.Emit(OpCodes.Ldsfld, typeof(JsUndefined).GetField("Instance"));
ilGenerator.MarkLabel(label2);
if (parameterInfo.ParameterType.IsByRef)
{
Type elementType = parameterInfo.ParameterType.GetElementType();
LocalBuilder localBuilder = ilGenerator.DeclareLocal(elementType);
ilGenerator.Emit(OpCodes.Call, typeof(Marshaller).GetMethod("MarshalJsValue").MakeGenericMethod(elementType));
ilGenerator.Emit(OpCodes.Stloc, localBuilder.LocalIndex);
ilGenerator.Emit(OpCodes.Ldloca, localBuilder.LocalIndex);
}
else
{
ilGenerator.Emit(OpCodes.Call, typeof(Marshaller).GetMethod("MarshalJsValue").MakeGenericMethod(parameterInfo.ParameterType));
}
++num;
}
ilGenerator.Emit(OpCodes.Newobj, info);
if (info.DeclaringType.IsValueType)
{
ilGenerator.Emit(OpCodes.Box, info.DeclaringType);
}
ilGenerator.Emit(OpCodes.Ret);
ConstructorImpl constructorImpl1 = (ConstructorImpl)dynamicMethod.CreateDelegate(typeof(ConstructorImpl));
lock (this.ctorCache)
this.ctorCache[info] = constructorImpl1;
return(constructorImpl1);
}
