public void InitializePropertyTypeNode(PropertyTypeNode propertyType)
{
foreach (var item in items)
{
item.Initialize(propertyType);
}
}
private static Type GetPropertyWrapperTypeFor(
PropertyTypeNode containerType,
PropertyTypeNode propertyType)
{
var propertyWrapperTypeString = GetPropertyWrapperTypeString(containerType, propertyType);
Type wrapperType;
if (!PropertyWrapperTypeFromName.TryGetValue(propertyWrapperTypeString, out wrapperType))
{
return(null);
}
if (wrapperType == null)
{
return(null);
}
if (PropertyTypeNode.IsEnumerableType(propertyType.Tag))
{
return(wrapperType.MakeGenericType(
containerType.NativeType,
typeof(List <>).MakeGenericType(propertyType.NativeType),
propertyType.NativeType));
}
return(wrapperType.MakeGenericType(containerType.NativeType, propertyType.NativeType));
}
public override void OnPropertyContainerGenerationCompleted(PropertyTypeNode container)
{
TypeDefinition type = null;
if (!_typeDefinitionPerPropertyNodeMap.TryGetValue(container, out type))
{
// @TODO error
return;
}
if (GeneratedContainerTypeDefinition?.Module == null)
{
return;
}
try
{
GeneratedContainerTypeDefinition.Module.Write();
}
catch (Exception e)
{
Debug.Log(e.ToString());
throw;
}
}
public override void OnGenerateConstructorForContainer(PropertyTypeNode container)
{
TypeDefinition type;
if (!_typeDefinitionPerPropertyNodeMap.TryGetValue(container, out type))
{
// @TODO error
return;
}
try
{
MethodDefinition constructor = null;
// Check if there is one already
var constructors = type.GetConstructors();
if (constructors != null && constructors.Count() == 0)
{
constructor = constructors.FirstOrDefault(c => !c.HasParameters);
}
bool constructorCreated = constructor == null;
if (constructor == null)
{
const MethodAttributes attributes = MethodAttributes.Public |
MethodAttributes.HideBySig |
MethodAttributes.SpecialName |
MethodAttributes.RTSpecialName;
constructor = new MethodDefinition(
".ctor", attributes, type.Module.TypeSystem.Void);
}
constructor.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_0));
var baseConstructor = type.BaseType.Resolve().GetConstructors().FirstOrDefault(c => !c.HasParameters);
if (baseConstructor != null)
{
constructor.Body.Instructions.Add(Instruction.Create(OpCodes.Call, baseConstructor));
}
// TODO add static property initialisers
// TODO add user hooks
GenerateFragments(ConstructorInitializerFragments, constructor.Body.GetILProcessor());
if (constructorCreated)
{
constructor.Body.Instructions.Add(Instruction.Create(OpCodes.Ret));
type.Methods.Add(constructor);
}
}
catch (Exception e)
{
Debug.Log(e.ToString());
throw;
}
}
public CheckPropertyGateResult Check(PropertyTypeNode propertyType, PropertyValueNode propertyValue)
{
if (propertyType.Extensions.TryGet <ReadOnlyAttribute, bool>(out var isReadOnly) && isReadOnly)
{
return(new CheckPropertyGateResult.Error());
}
return(CheckPropertyGateResult.Success.Instance);
}
public override void OnGenerateStaticConstructorForContainer(PropertyTypeNode container)
{
TypeDefinition type = null;
if (!_typeDefinitionPerPropertyNodeMap.TryGetValue(container, out type))
{
// @TODO error
return;
}
try
{
// Check if there is one already
MethodDefinition staticConstructor = type.GetMethods().FirstOrDefault(c => c.Name == ".cctor");
bool constructorCreated = staticConstructor == null;
if (staticConstructor == null)
{
const MethodAttributes attributes = MethodAttributes.Static |
MethodAttributes.HideBySig |
MethodAttributes.SpecialName |
MethodAttributes.RTSpecialName;
staticConstructor = new MethodDefinition(".cctor", attributes, type.Module.TypeSystem.Void);
}
var ilProcessor = staticConstructor.Body.GetILProcessor();
staticConstructor.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_0));
StaticConstructorStagePrePostFragments stageFragments;
if (StaticConstructorInitializerFragments.TryGetValue(
ConstructorStage.PropertyInitializationStage,
out stageFragments))
{
GenerateFragments(stageFragments.InStageFragments, ilProcessor);
GenerateFragments(stageFragments.PostStageFragments, ilProcessor);
}
if (!constructorCreated)
{
return;
}
staticConstructor.Body.Instructions.Add(Instruction.Create(OpCodes.Ret));
type.Methods.Add(staticConstructor);
}
catch (Exception e)
{
Debug.Log(e.ToString());
throw;
}
}
public override void OnGeneratePropertyBagForContainer(PropertyTypeNode container)
{
TypeDefinition type = null;
if (!_typeDefinitionPerPropertyNodeMap.TryGetValue(container, out type))
{
// @TODO error
return;
}
GeneratePropertyBag(type.Module, type, PropertyBagItemTypes);
}
public override void OnGenerateUserHooksForContainer(PropertyTypeNode container)
{
if (container.UserHooks.HasFlag(UserHookFlags.OnPropertyBagConstructed))
{
TypeDefinition type = null;
if (!_typeDefinitionPerPropertyNodeMap.TryGetValue(container, out type))
{
// @TODO error
return;
}
}
}
private static string GetPropertyWrapperTypeString(
PropertyTypeNode containerType,
PropertyTypeNode propertyType)
{
var propertyWrapperTypeStringPrefix = string.Empty;
if (containerType.Tag.HasFlag(PropertyTypeNode.TypeTag.Struct))
{
propertyWrapperTypeStringPrefix = "Struct";
}
switch (propertyType.Tag)
{
case PropertyTypeNode.TypeTag.Struct:
return($"{propertyWrapperTypeStringPrefix}MutableContainerProperty");
case PropertyTypeNode.TypeTag.Class:
return($"{propertyWrapperTypeStringPrefix}ContainerProperty");
case PropertyTypeNode.TypeTag.Enum:
return($"{propertyWrapperTypeStringPrefix}EnumProperty");
case PropertyTypeNode.TypeTag.List:
{
switch (propertyType.Of.Tag)
{
case PropertyTypeNode.TypeTag.Primitive:
return($"{propertyWrapperTypeStringPrefix}ListProperty");
case PropertyTypeNode.TypeTag.Struct:
return($"{propertyWrapperTypeStringPrefix}MutableContainerListProperty");
case PropertyTypeNode.TypeTag.Class:
return($"{propertyWrapperTypeStringPrefix}ContainerListProperty");
case PropertyTypeNode.TypeTag.Enum:
return($"{propertyWrapperTypeStringPrefix}EnumListProperty");
case PropertyTypeNode.TypeTag.Unknown:
case PropertyTypeNode.TypeTag.List:
default:
throw new Exception($"Invalid property tag for list property name {propertyType.PropertyName}");
}
}
case PropertyTypeNode.TypeTag.Primitive:
return($"{propertyWrapperTypeStringPrefix}Property");
default:
break;
}
return($"{propertyWrapperTypeStringPrefix}Property");
}
public override void OnGenerateNestedContainer(PropertyTypeNode container, PropertyTypeNode nestedContainer)
{
TypeDefinition type = null;
if (!_typeDefinitionPerPropertyNodeMap.TryGetValue(container, out type))
{
// @TODO error
return;
}
var cecilBackend = new CecilGenerationBackend();
cecilBackend.GenerateContainer(nestedContainer);
type.NestedTypes.Add(cecilBackend.GeneratedContainerTypeDefinition);
}
public override void OnPropertyContainerGenerationStarted(PropertyTypeNode container)
{
var assembly = GetAssembly(container.NativeType.Assembly.Location);
var module = assembly.Modules.FirstOrDefault(
m => m.FileName == container.NativeType.Module.FullyQualifiedName);
if (module == null)
{
// It doesn't seem to exist
// TODO fallback
return;
}
var attributes = TypeAttributes.Public | TypeAttributes.Class;
if (container.IsAbstractClass)
{
attributes |= TypeAttributes.Abstract;
}
if (container.Tag == PropertyTypeNode.TypeTag.Struct)
{
attributes |= TypeAttributes.SequentialLayout;
}
var containerType = new TypeDefinition(
container.TypePath.Namespace,
GetPropertyContainerClassNameForType(module, container.NativeType, container.TypeName),
attributes,
GetPropertyContainerTypeReference()
);
GenerateVersionStorage(module, containerType);
module.Types.Add(containerType);
GeneratedContainerTypeDefinition = containerType;
_typeDefinitionPerPropertyNodeMap[container] = containerType;
}
public override void OnPropertyGenerationStarted(PropertyTypeNode container, PropertyTypeNode property)
{
TypeDefinition type;
if (!_typeDefinitionPerPropertyNodeMap.TryGetValue(container, out type))
{
// @TODO error
return;
}
// Backing field (should be optional)
var backingField = new FieldDefinition(
BackingFieldFromPropertyName(property.PropertyName),
FieldAttributes.Private,
type.Module.ImportReference(property.NativeType)
);
type.Fields.Add(backingField);
ConstructorInitializerFragments.Add(
new CecilGenerationFragmentContext()
{
Module = type.Module,
Type = type,
Fragment = ilProcessor =>
{
ilProcessor.Append(ilProcessor.Create(OpCodes.Ldarg_0));
ilProcessor.Append(ilProcessor.Create(OpCodes.Newobj, type.Module.ImportReference(property.NativeType)));
ilProcessor.Append(ilProcessor.Create(OpCodes.Stfld, backingField));
}
});
// Property wrapper static field
var propertyWrapperType = type.Module.ImportReference(GetPropertyWrapperTypeFor(container, property));
var propertyWrapperField = new FieldDefinition(
PropertyWrapperFieldName(property.PropertyName),
FieldAttributes.Private | FieldAttributes.Static,
propertyWrapperType
);
type.Fields.Add(propertyWrapperField);
PropertyBagItemTypes.Add(propertyWrapperField);
// TODO add a post processing field initialization
ConstructorInitializerFragments.Add(
new CecilGenerationFragmentContext()
{
Module = type.Module,
Type = type,
Fragment = ilProcessor =>
{
ilProcessor.Append(ilProcessor.Create(OpCodes.Ldarg_0));
// #arg 0
ilProcessor.Append(ilProcessor.Create(OpCodes.Ldstr, property.PropertyName));
// #arg 1 (getter)
// #arg 2 (setter)
// #arg 2 (reference)
}
});
/*
* FloatListProperty =
* new ListProperty<TestContainer, List<float>, float>(nameof(FloatList),
* c => c._floatList,
* null,
* null);
*/
// Accessor method
var getPropertyMethod =
new MethodDefinition(
"get_" + property.PropertyName,
MethodAttributes.Public |
MethodAttributes.HideBySig |
MethodAttributes.SpecialName |
MethodAttributes.RTSpecialName,
type.Module.ImportReference(property.NativeType)
);
getPropertyMethod.Body.Variables.Add(
new VariableDefinition(type.Module.ImportReference(typeof(PropertyBag))));
// get { return FloatListProperty.GetValue(this); }
var il = getPropertyMethod.Body.GetILProcessor();
il.Append(il.Create(OpCodes.Ldarg_0));
il.Append(il.Create(OpCodes.Ldfld, propertyWrapperField));
il.Append(il.Create(OpCodes.Ldarg_0));
var getValueDelegateRef = propertyWrapperType.Resolve().Methods.FirstOrDefault(m => m.Name == "GetValue");
il.Append(il.Create(OpCodes.Callvirt, type.Module.ImportReference(getValueDelegateRef)));
il.Append(il.Create(OpCodes.Ret));
type.Methods.Add(getPropertyMethod);
// Actual property
// public List<float> FloatList
var propertyAccessorForProperty = new PropertyDefinition(
property.PropertyName,
PropertyAttributes.None,
type.Module.ImportReference(property.NativeType)
)
{
HasThis = true,
GetMethod = getPropertyMethod,
};
type.Properties.Add(propertyAccessorForProperty);
}
private List <PropertyTypeNode> ExtractPropertyNodesFrom(
SemanticModel model, SemanticInformationCollector collector)
{
if (model == null)
{
throw new Exception("Invalid semantic model for property node introspection (null).");
}
var nodes = new List <PropertyTypeNode>();
var typePerFullTypename = new Dictionary <string, PropertyTypeNode>();
// Expect a top -> bottom tree traversal, so it means that the
// list contains types declared in order.
foreach (var type in collector.ContainerTypes)
{
var tag = PropertyTypeNode.TypeTag.Class;
if (type is StructDeclarationSyntax)
{
tag = PropertyTypeNode.TypeTag.Struct;
}
var symbol = model.GetDeclaredSymbol(type);
var typePath = new ContainerTypeTreePath
{
Namespace = NamespaceForType(type)
};
var fullTypeNamePath = symbol.ToString().Replace(typePath.Namespace, "").Trim('.').Split('.');
fullTypeNamePath = fullTypeNamePath.Take(fullTypeNamePath.Length - 1).ToArray();
foreach (var pathPart in fullTypeNamePath)
{
typePath.TypePath.Push(pathPart);
}
var node = new PropertyTypeNode
{
Tag = tag,
TypePath = typePath,
TypeName = symbol.Name,
IsAbstractClass = symbol.IsAbstract,
OverrideDefaultBaseClass = symbol.AllInterfaces.Any(i => i.Name == typeof(IPropertyContainer).Name)
? string.Empty : symbol.BaseType.Name
};
var fieldCollector = new FieldCollector(model);
fieldCollector.Visit(type);
foreach (var field in fieldCollector.Properties)
{
var genericProperty = new RoslynProperty(field.Symbol);
if (!genericProperty.IsValid)
{
continue;
}
// Parse
var property = new PropertyTypeNode()
{
PropertyName = PropertyNameFromFieldName(field.Symbol.Name),
Tag = genericProperty.TypeTag,
TypeName = genericProperty.TypeID,
Of = genericProperty.ListOf,
IsReadonly = genericProperty.IsReadonly,
IsPublicProperty = field.SyntaxNode.Modifiers.Any(SyntaxKind.PublicKeyword)
};
// Extract info about backing fields
var initializer = field.SyntaxNode.Declaration.Variables.First().Initializer;
if (initializer?.Value is ExpressionSyntax)
{
/*
* // @TODO
* var initializerExpression = initializer.Value;
*
* // @TODO
* var symbolNames = model.LookupSymbols(initializerExpression.SpanStart).Select(s => s.Name).ToList();
*/
// property.DefaultValue =
property.PropertyBackingAccessor = string.Empty;
}
if (!string.IsNullOrEmpty(property.PropertyName))
{
node.Properties.Add(property);
}
}
var containingSymbolFullName = symbol.ContainingSymbol.ToDisplayString();
// symbol.ContainingSymbol.Name
if (typePerFullTypename.ContainsKey(containingSymbolFullName))
{
// This is a nested node
var parent = typePerFullTypename[containingSymbolFullName];
node.TypePath = new ContainerTypeTreePath(parent.TypePath);
node.TypePath.TypePath.Push(parent.TypeName);
parent.NestedContainers.Add(node);
}
else
{
// This is a new node
typePerFullTypename[node.FullTypeName] = node;
nodes.Add(node);
}
}
return(nodes);
}