public static JsTypeFunction Define(JsFunction assembly, JsTypeFunction enclosingType, string name, bool isGenericType, JsArray typeParameters, JsObject prototype, JsFunction typeInitializer)
{
JsTypeFunction typeFunction = null;
var isTypeInitialized = false;
// Create constructor function, which is a superconstructor that takes in the actual
// constructor as the first argument, and the rest of the arguments are passed directly
// to that constructor. These subconstructors are not Javascript constructors -- they
// are not called via new, they exist for initialization only.
typeFunction = Jsni.function((constructor, args) =>
{
if (constructor != null || !(Jsni.instanceof(Jsni.@this(), typeFunction)))
{
if (!isGenericType || typeFunction.UnconstructedType != null)
{
typeFunction.member(SpecialNames.StaticInitializer).invoke();
}
}
if (constructor != null)
{
constructor.apply(Jsni.@this(), args.As <JsArray>());
}
if (!Jsni.instanceof(Jsni.@this(), typeFunction))
{
return(typeFunction);
}
else
{
return(Jsni.@this());
}
}).As <JsTypeFunction>();
typeFunction.GetAssembly = assembly;
assembly.member(SpecialNames.AssemblyTypesArray).member("push").invoke(typeFunction);
typeFunction.memberset("toString", Jsni.function(() => name.As <JsObject>()));
typeFunction.EnclosingType = enclosingType;
typeFunction.TypeName = name;
typeFunction.prototype = Jsni.@new(prototype);
typeFunction.IsPrototypeInitialized = false;
typeFunction.TypeInitializer = Jsni.procedure((_t, p) =>
{
var t = _t.As <JsTypeFunction>();
if (isGenericType)
{
var unconstructedType = t.UnconstructedType ?? t;
t.GenericTypeFunction = Jsni.function(() =>
{
return(Jsni.reference(SpecialNames.MakeGenericTypeConstructor).As <JsFunction>().call(unconstructedType, unconstructedType, Jsni.arguments()).As <JsFunction>().invoke());
});
}
t.GetTypeFromType = Jsni.function(() =>
{
return(Type._GetTypeFromTypeFunc(Jsni.@this().As <JsTypeFunction>()).As <JsObject>());
});
p.memberset(SpecialNames.TypeName, t.member(SpecialNames.TypeName));
p.___type = t;
t.BaseType = prototype.As <JsTypeFunction>();
typeInitializer.apply(Jsni.@this(), Jsni.arguments().As <JsArray>());
});
typeFunction.CallTypeInitializer = Jsni.procedure(() =>
{
typeFunction.TypeInitializer.apply(enclosingType, Jsni.array(typeFunction, typeFunction.prototype).concat(typeParameters));
});
return(typeFunction);
}
public static object FromJsonObject(this JsObject o, Type type)
{
if (type.IsArray)
{
var arrayValue = o.As <JsArray>();
var elementType = type.GetElementType();
var array = Array.CreateInstance(elementType, arrayValue.length);
for (var i = 0; i < arrayValue.length; i++)
{
array.SetValue(FromJsonObject(arrayValue[i], elementType), i);
}
return(array.As <JsObject>());
}
else if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(List <>))
{
var arrayValue = o.As <JsArray>();
var elementType = type.GetGenericArguments()[0];
var list = (IList)Activator.CreateInstance(type);
for (var i = 0; i < arrayValue.length; i++)
{
list.Add(FromJsonObject(arrayValue[i], elementType));
}
return(list.As <JsObject>());
}
else if (type.IsPrimitive)
{
return(Convert.ChangeType(o, type));
}
else if (type == typeof(DateTime) || (type.IsNullableValueType() && type.GetGenericArguments()[0] == typeof(DateTime)))
{
if (o == null)
{
return(null);
}
return(DateTime.ParseExact(o.As <string>(), Iso8601).As <JsObject>());
}
else if (type == typeof(string))
{
return(o.As <string>());
}
else if (type.IsEnum)
{
return(Enum.Parse(type, o.As <string>()));
}
else
{
var result = Activator.CreateInstance(type);
var properties = type.GetProperties().ToDictionary(x => x.Name.ToUpper());
foreach (var propertyName in o)
{
var value = o[propertyName];
PropertyInfo property;
if (properties.TryGetValue(propertyName.ToUpper(), out property))
{
var newValue = FromJsonObject(value, property.PropertyType);
property.SetValue(result, newValue, null);
}
}
return(result);
}
}
internal static JsTypeFunction MakeGenericTypeFactory(JsTypeFunction unconstructedType, JsArray typeArgs)
{
var cache = Jsni.member(unconstructedType, SpecialNames.TypeCache);
JsObject result = null;
if (typeArgs.length > 0)
{
if (cache == null)
{
cache = new JsObject();
unconstructedType.memberset(SpecialNames.TypeCache, cache);
}
JsObject currentCache = cache;
for (var i = 0; i < typeArgs.length - 1; i++)
{
var nextCache = currentCache[typeArgs[i].member(SpecialNames.TypeName)];
if (nextCache == null)
{
nextCache = new JsObject();
currentCache[typeArgs[i].member(SpecialNames.TypeName)] = nextCache;
}
currentCache = nextCache;
}
cache = currentCache;
result = cache[typeArgs[typeArgs.length - 1].member(SpecialNames.TypeName)];
}
else
{
result = cache;
}
// JsObject keyString;
// First two if statements are optimizations for performance reasons to avoid heap allocation when possible.
/*
* if (typeArgs.length == 0)
* keyString = "";
* else if (typeArgs.length == 1)
* keyString = typeArgs[0].member(SpecialNames.TypeName);
* else
* {
* var keyArray = Jsni.call<JsArray>(x => x.slice(0), typeArgs, 0.As<JsNumber>()).As<JsArray>();
* var keyParts = new JsArray();
* for (var i = 0; i < keyArray.length; i++)
* {
* keyParts[i] = keyArray[i].member(SpecialNames.TypeName);
* }
* keyString = keyParts.join(", ");
* }
*
* var result = cache[keyString];
*/
if (result == null)
{
var keyArray = Jsni.call <JsArray>(x => x.slice(0), typeArgs, 0.As < JsNumber > ()).As <JsArray>();
var keyParts = new JsArray();
for (var i = 0; i < keyArray.length; i++)
{
keyParts[i] = keyArray[i].member(SpecialNames.TypeName);
}
var keyString = keyParts.join(", ");
var lastIndexOfDollar = unconstructedType.TypeName.LastIndexOf('`');
if (lastIndexOfDollar == -1)
{
lastIndexOfDollar = unconstructedType.TypeName.Length;
}
var newTypeName = unconstructedType.TypeName.Substring(0, lastIndexOfDollar) + "<" + keyString + ">";
var prototype = unconstructedType.BaseType;
if (prototype.member("$"))
{
var baseArgs = unconstructedType.BaseTypeArgs.slice(0);
for (var i = 0; i < baseArgs.length; i++)
{
var baseArg = (JsTypeFunction)baseArgs[i];
if (baseArg.IsTypeParameter)
{
for (var j = 0; j < unconstructedType.TypeArgs.length; j++)
{
var typeArg = unconstructedType.TypeArgs[j];
if (typeArg == baseArg)
{
baseArgs[i] = typeArgs[j];
}
}
}
}
prototype = prototype.member("$").apply(null, baseArgs).As <JsTypeFunction>();
}
var typeInitializer = Jsni.procedure((_t, p) =>
{
var t = _t.As <JsTypeFunction>();
p.___type = t;
t.As <JsTypeFunction>().BaseType = unconstructedType;
t.As <JsTypeFunction>().GetTypeFromType = Jsni.function(() => Type._GetTypeFromTypeFunc(Jsni.@this().As <JsTypeFunction>()).As <JsObject>());
t.As <JsTypeFunction>().TypeName = newTypeName;
t.As <JsTypeFunction>().CreateTypeField = Jsni.function(() =>
{
var unconstructedTypeType = Type._GetTypeFromTypeFunc(unconstructedType);
var type = new Type(newTypeName, new Attribute[0]);
t.Type = type;
type.thisType = t;
var typeParameters = unconstructedTypeType.typeArguments;
var typeArguments = InitializeArray(typeArgs, Jsni.type <JsTypeFunction>()).As <JsTypeFunction[]>();
Func <Type, JsTypeFunction> reifyGenerics = null;
reifyGenerics = theType =>
{
if (theType == null)
{
return(null);
}
if (theType.IsArray)
{
var elementType = theType.GetElementType();
var arrayType = MakeArrayType(reifyGenerics(elementType));
return(arrayType);
}
if (theType.IsGenericParameter)
{
for (int i = 0; i < typeArguments.Length; i++)
{
var typeParameter = typeParameters[i];
var typeArgument = typeArguments[i];
if (typeParameter.TypeName == theType.FullName)
{
return(typeArgument);
}
}
}
else if (theType.IsGenericTypeDefinition)
{
return(MakeGenericTypeFactory(theType.thisType, theType.GenericTypeArguments.Select(x => reifyGenerics(x)).ToArray().As <JsArray>()));
}
else if (theType.IsGenericType)
{
JsTypeFunction[] newTypeArguments = null;
for (var i = 0; i < theType.typeArguments.Length; i++)
{
var theTypeArgument = theType.typeArguments[i];
for (var j = 0; j < typeParameters.Length; j++)
{
var typeParameter = typeParameters[j];
var typeArgument = typeArguments[j];
if (theTypeArgument == typeParameter)
{
if (newTypeArguments == null)
{
newTypeArguments = new JsTypeFunction[theType.typeArguments.Length];
for (var k = 0; k < theType.typeArguments.Length; k++)
{
newTypeArguments[k] = theType.typeArguments[k];
}
}
newTypeArguments[i] = typeArgument;
}
}
}
if (newTypeArguments != null)
{
return(MakeGenericTypeFactory(theType.unconstructedType, newTypeArguments.As <JsArray>()));
}
else
{
return(theType.thisType);
}
}
return(theType.thisType);
};
var newInterfaces = unconstructedTypeType.interfaces.ToArray();
for (var i = 0; i < newInterfaces.Length; i++)
{
var intf = newInterfaces[i];
intf = reifyGenerics(Type._GetTypeFromTypeFunc(intf));
newInterfaces[i] = intf;
}
var newConstructors = unconstructedTypeType.constructors.ToArray();
for (var i = 0; i < newConstructors.Length; i++)
{
var constructor = newConstructors[i];
var parameters = constructor.GetParameters();
for (var j = 0; j < parameters.Length; j++)
{
var parameter = parameters[j];
var parameterType = reifyGenerics(parameter.ParameterType);
parameter = new ParameterInfo(parameter.Name, parameterType, j, parameter.Attributes, parameter.DefaultValue, parameter.attributes);
parameters[j] = parameter;
}
newConstructors[i] = new ConstructorInfo(constructor.Name, t.prototype[constructor.Name].As <JsFunction>(), parameters, constructor.Attributes, constructor.attributes);
}
var newProperties = unconstructedTypeType.properties.ToArray();
for (var i = 0; i < newProperties.Length; i++)
{
var property = newProperties[i];
var propertyTypeType = property.PropertyType;
var propertyType = reifyGenerics(propertyTypeType);
newProperties[i] = new PropertyInfo(property.Name, propertyType, property.GetGetMethod(), property.GetSetMethod(),
property.GetIndexParameters(), property.attributes);
}
var newMethods = unconstructedTypeType.methods.ToArray();
for (var i = 0; i < newMethods.Length; i++)
{
var method = newMethods[i];
var returnTypeType = method.ReturnType;
var returnType = reifyGenerics(returnTypeType);
var parameters = method.GetParameters();
for (var j = 0; j < parameters.Length; j++)
{
var parameter = parameters[j];
var parameterType = reifyGenerics(parameter.ParameterType);
parameter = new ParameterInfo(parameter.Name, parameterType, j, parameter.Attributes, parameter.DefaultValue, parameter.attributes);
parameters[j] = parameter;
}
method = new MethodInfo(method.Name, method.jsMethod, parameters, returnType, method.Attributes, method.attributes);
newMethods[i] = method;
}
type.Init(
newTypeName,
(int)((unconstructedTypeType.typeFlags | TypeFlags.GenericType) & ~TypeFlags.GenericTypeDefenition),
t,
prototype,
newInterfaces,
typeArguments,
unconstructedTypeType.fields,
newMethods,
newConstructors,
newProperties,
unconstructedTypeType.events,
null,
unconstructedType);
return(type.As <JsObject>());
});
}, SpecialNames.TypeInitializerTypeFunction, SpecialNames.TypeInitializerPrototype);
var generic = Define(unconstructedType.GetAssembly, unconstructedType.EnclosingType, newTypeName, true, Jsni.array(), prototype, typeInitializer);
generic.memberset(SpecialNames.UnconstructedType, unconstructedType);
// unconstructedType.$TypeInitializer.apply(this, [generic, generic.prototype].concat(Array.prototype.slice.call(arguments, 0)));
unconstructedType.member(SpecialNames.TypeInitializer).apply(
unconstructedType,
Jsni.array(generic, generic.prototype).member("concat").invoke(keyArray).As <JsArray>()
);
Jsni.call(generic.TypeInitializer, Jsni.@this(), generic, generic.prototype);
result = generic;
if (typeArgs.length == 0)
{
unconstructedType.memberset(SpecialNames.TypeCache, result);
}
else
{
cache[typeArgs[typeArgs.length - 1].member(SpecialNames.TypeName)] = result;
}
}
return(result.As <JsTypeFunction>());
}