public override void VisitClassDeclaration(ClassDeclarationSyntax node)
{
if (++classCount > 1)
{
throw new System.NotSupportedException("Only one class declaration per file is currently supported by UdonSharp");
}
using (ExpressionCaptureScope classTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
foreach (string namespaceToken in namespaceStack.Reverse())
{
classTypeCapture.ResolveAccessToken(namespaceToken);
}
visitorContext.resolverContext.AddNamespace(classTypeCapture.captureNamespace);
classTypeCapture.ResolveAccessToken(node.Identifier.ValueText);
if (!classTypeCapture.IsType())
{
throw new System.Exception($"User type {node.Identifier.ValueText} could not be found");
}
classDefinition.userClassType = classTypeCapture.captureType;
}
base.VisitClassDeclaration(node);
}
public override void VisitClassDeclaration(ClassDeclarationSyntax node)
{
UpdateSyntaxNode(node);
using (ExpressionCaptureScope classTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
foreach (string namespaceToken in namespaceStack.Reverse())
{
classTypeCapture.ResolveAccessToken(namespaceToken);
if (classTypeCapture.IsNamespace())
{
visitorContext.resolverContext.AddNamespace(classTypeCapture.captureNamespace);
}
}
classTypeCapture.ResolveAccessToken(node.Identifier.ValueText);
if (!classTypeCapture.IsType())
{
throw new System.Exception($"User type {node.Identifier.ValueText} could not be found");
}
}
if (syntaxWalkerDepth == UdonSharpSyntaxWalkerDepth.ClassDefinitions ||
syntaxWalkerDepth == UdonSharpSyntaxWalkerDepth.ClassMemberBodies)
{
base.VisitClassDeclaration(node);
}
}
// Boilerplate to have resolution work correctly
public override void VisitUsingDirective(UsingDirectiveSyntax node)
{
UpdateSyntaxNode(node);
using (ExpressionCaptureScope namespaceCapture = new ExpressionCaptureScope(visitorContext, null))
{
if (node.StaticKeyword.IsKind(SyntaxKind.StaticKeyword))
{
throw new System.NotSupportedException("UdonSharp does not yet support static using directives");
}
if (node.Alias != null)
{
throw new System.NotSupportedException("UdonSharp does not yet support namespace alias directives");
}
Visit(node.Name);
if (!namespaceCapture.IsNamespace())
{
throw new System.Exception("Did not capture a valid namespace");
}
visitorContext.resolverContext.AddNamespace(namespaceCapture.captureNamespace);
}
}
public override void VisitClassDeclaration(ClassDeclarationSyntax node)
{
using (ExpressionCaptureScope classTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
foreach (string namespaceToken in namespaceStack.Reverse())
{
classTypeCapture.ResolveAccessToken(namespaceToken);
if (classTypeCapture.IsNamespace())
{
visitorContext.resolverContext.AddNamespace(classTypeCapture.captureNamespace);
}
}
visitorContext.resolverContext.AddNamespace(classTypeCapture.captureNamespace);
classTypeCapture.ResolveAccessToken(node.Identifier.ValueText);
if (!classTypeCapture.IsType())
{
throw new System.Exception($"User type {node.Identifier.ValueText} could not be found");
}
}
base.VisitClassDeclaration(node);
}
public override void VisitFieldDeclaration(FieldDeclarationSyntax node)
{
UpdateSyntaxNode(node);
bool isPublic = node.Modifiers.HasModifier("public");
System.Type fieldType = null;
using (ExpressionCaptureScope fieldTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
UpdateSyntaxNode(node.Declaration.Type);
Visit(node.Declaration.Type);
fieldType = fieldTypeCapture.captureType;
}
if (fieldType == null)
{
throw new System.Exception($"The type or namespace name '{node.Declaration.Type}' could not be found (are you missing a using directive?)");
}
foreach (VariableDeclaratorSyntax variableDeclarator in node.Declaration.Variables)
{
SymbolDefinition newSymbol = visitorContext.topTable.CreateNamedSymbol(variableDeclarator.Identifier.ValueText, fieldType, isPublic ? SymbolDeclTypeFlags.Public : SymbolDeclTypeFlags.Private);
classDefinition.fieldDefinitions.Add(new FieldDefinition(newSymbol));
}
}
public override void VisitArrayType(ArrayTypeSyntax node)
{
using (ExpressionCaptureScope arrayTypeCaptureScope = new ExpressionCaptureScope(visitorContext, visitorContext.topCaptureScope))
{
Visit(node.ElementType);
arrayTypeCaptureScope.MakeArrayType();
}
}
private UdonSyncMode GetSyncAttributeValue(FieldDeclarationSyntax node)
{
UdonSyncMode syncMode = UdonSyncMode.NotSynced;
if (node.AttributeLists != null)
{
foreach (AttributeListSyntax attributeList in node.AttributeLists)
{
foreach (AttributeSyntax attribute in attributeList.Attributes)
{
using (ExpressionCaptureScope attributeTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
attributeTypeCapture.isAttributeCaptureScope = true;
Visit(attribute.Name);
if (attributeTypeCapture.captureType != typeof(UdonSyncedAttribute))
{
continue;
}
if (attribute.ArgumentList == null ||
attribute.ArgumentList.Arguments == null ||
attribute.ArgumentList.Arguments.Count == 0)
{
syncMode = UdonSyncMode.None;
}
else
{
using (ExpressionCaptureScope attributeCaptureScope = new ExpressionCaptureScope(visitorContext, null))
{
Visit(attribute.ArgumentList.Arguments[0].Expression);
if (!attributeCaptureScope.IsEnum())
{
throw new System.Exception("Invalid attribute argument provided for sync");
}
syncMode = (UdonSyncMode)attributeCaptureScope.GetEnumValue();
}
}
break;
}
}
if (syncMode != UdonSyncMode.NotSynced)
{
break;
}
}
}
return(syncMode);
}
public override void VisitArrayType(ArrayTypeSyntax node)
{
using (ExpressionCaptureScope arrayTypeCaptureScope = new ExpressionCaptureScope(visitorContext, visitorContext.topCaptureScope))
{
Visit(node.ElementType);
for (int i = 0; i < node.RankSpecifiers.Count; ++i)
{
arrayTypeCaptureScope.MakeArrayType();
}
}
}
// Boilerplate to have resolution work correctly
public override void VisitUsingDirective(UsingDirectiveSyntax node)
{
using (ExpressionCaptureScope namespaceCapture = new ExpressionCaptureScope(visitorContext, null))
{
Visit(node.Name);
if (!namespaceCapture.IsNamespace())
{
throw new System.Exception("Did not capture a valid namespace");
}
visitorContext.resolverContext.AddNamespace(namespaceCapture.captureNamespace);
}
}
public override void VisitMethodDeclaration(MethodDeclarationSyntax node)
{
MethodDefinition methodDefinition = new MethodDefinition();
methodDefinition.declarationFlags = node.Modifiers.HasModifier("public") ? MethodDeclFlags.Public : MethodDeclFlags.Private;
methodDefinition.methodUdonEntryPoint = visitorContext.labelTable.GetNewJumpLabel("udonMethodEntryPoint");
methodDefinition.methodUserCallStart = visitorContext.labelTable.GetNewJumpLabel("userMethodCallEntry");
methodDefinition.methodReturnPoint = visitorContext.labelTable.GetNewJumpLabel("methodReturnPoint");
methodDefinition.originalMethodName = node.Identifier.ValueText;
methodDefinition.uniqueMethodName = methodDefinition.originalMethodName;
visitorContext.resolverContext.ReplaceInternalEventName(ref methodDefinition.uniqueMethodName);
// Resolve the type arguments
using (ExpressionCaptureScope returnTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
Visit(node.ReturnType);
if (returnTypeCapture.captureType != typeof(void))
{
//methodDefinition.returnType = returnTypeCapture.captureType;
methodDefinition.returnSymbol = visitorContext.topTable.CreateNamedSymbol("returnValSymbol", returnTypeCapture.captureType, SymbolDeclTypeFlags.Internal);
}
}
methodDefinition.parameters = new ParameterDefinition[node.ParameterList.Parameters.Count];
for (int i = 0; i < node.ParameterList.Parameters.Count; ++i)
{
ParameterSyntax parameter = node.ParameterList.Parameters[i];
ParameterDefinition paramDef = new ParameterDefinition();
using (ExpressionCaptureScope paramTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
Visit(parameter.Type);
paramDef.type = paramTypeCapture.captureType;
paramDef.symbolName = parameter.Identifier.ValueText;
paramDef.paramSymbol = visitorContext.topTable.CreateNamedSymbol(parameter.Identifier.ValueText, paramDef.type, SymbolDeclTypeFlags.Local);
}
methodDefinition.parameters[i] = paramDef;
}
definedMethods.Add(methodDefinition);
}
public override void VisitFieldDeclaration(FieldDeclarationSyntax node)
{
bool isPublic = node.Modifiers.HasModifier("public");
System.Type fieldType = null;
using (ExpressionCaptureScope fieldTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
Visit(node.Declaration.Type);
fieldType = fieldTypeCapture.captureType;
}
foreach (VariableDeclaratorSyntax variableDeclarator in node.Declaration.Variables)
{
SymbolDefinition newSymbol = visitorContext.topTable.CreateNamedSymbol(variableDeclarator.Identifier.ValueText, fieldType, isPublic ? SymbolDeclTypeFlags.Public : SymbolDeclTypeFlags.Private);
classDefinition.fieldDefinitions.Add(new FieldDefinition(newSymbol));
}
}
private List <System.Type> GetTypeArgumentList(TypeArgumentListSyntax typeArgumentList)
{
UpdateSyntaxNode(typeArgumentList);
List <System.Type> argumentTypes = new List <System.Type>();
foreach (TypeSyntax typeSyntax in typeArgumentList.Arguments)
{
using (ExpressionCaptureScope typeCaptureScope = new ExpressionCaptureScope(visitorContext, null))
{
Visit(typeSyntax);
if (!typeCaptureScope.IsType())
{
throw new System.ArgumentException("Generic argument must be a valid type");
}
argumentTypes.Add(UdonSharpUtils.RemapBaseType(typeCaptureScope.captureType));
}
}
return(argumentTypes);
}
public override void VisitTypeOfExpression(TypeOfExpressionSyntax node)
{
UpdateSyntaxNode(node);
System.Type capturedType = null;
using (ExpressionCaptureScope typeCapture = new ExpressionCaptureScope(visitorContext, null))
{
Visit(node.Type);
capturedType = typeCapture.captureType;
// Just throw a compile error for now instead of letting people get the typeof a type that won't exist in game
if (capturedType == typeof(UdonSharpBehaviour) || capturedType.IsSubclassOf(typeof(UdonSharpBehaviour)))
{
throw new System.NotSupportedException("UdonSharp does not currently support using `typeof` on user defined types");
}
}
if (visitorContext.topCaptureScope != null)
{
visitorContext.topCaptureScope.SetToLocalSymbol(visitorContext.topTable.CreateConstSymbol(typeof(System.Type), capturedType));
}
}
bool HasRecursiveMethodAttribute(MethodDeclarationSyntax node)
{
if (node.AttributeLists != null)
{
foreach (AttributeListSyntax attributeList in node.AttributeLists)
{
foreach (AttributeSyntax attribute in attributeList.Attributes)
{
using (ExpressionCaptureScope attributeTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
attributeTypeCapture.isAttributeCaptureScope = true;
Visit(attribute.Name);
if (attributeTypeCapture.captureType == typeof(RecursiveMethodAttribute))
{
return(true);
}
}
}
}
}
return(false);
}
protected List <SymbolDefinition> HandleVariableDeclaration(VariableDeclarationSyntax node, SymbolDeclTypeFlags symbolType, UdonSyncMode syncMode)
{
UpdateSyntaxNode(node);
bool isVar = node.Type.IsVar;
System.Type variableType = null;
if (!isVar)
{
using (ExpressionCaptureScope typeCapture = new ExpressionCaptureScope(visitorContext, null))
{
Visit(node.Type);
if (!typeCapture.IsType())
{
throw new System.Exception($"The type or namespace name '{typeCapture.unresolvedAccessChain}' could not be found (are you missing a using directive?)");
}
variableType = typeCapture.captureType;
}
}
List <SymbolDefinition> newSymbols = new List <SymbolDefinition>();
foreach (VariableDeclaratorSyntax variableDeclarator in node.Variables)
{
SymbolDefinition newSymbol = null;
string variableName = variableDeclarator.Identifier.ValueText;
using (ExpressionCaptureScope symbolCreationScope = new ExpressionCaptureScope(visitorContext, null))
{
if (!isVar)
{
newSymbol = visitorContext.topTable.CreateNamedSymbol(variableDeclarator.Identifier.ValueText, variableType, symbolType);
}
// Run the initializer if it exists
// Todo: Run the set on the new symbol scope from within the initializer scope for direct setting
if (variableDeclarator.Initializer != null && symbolType.HasFlag(SymbolDeclTypeFlags.Local))
{
using (ExpressionCaptureScope initializerCapture = new ExpressionCaptureScope(visitorContext, null, newSymbol))
{
Visit(variableDeclarator.Initializer);
if (newSymbol == null)
{
// TODO: Find a way to determine the return type before generating initializer code, to avoid a copy on 'var' local initializers
variableType = initializerCapture.GetReturnType(true);
newSymbol = visitorContext.topTable.CreateNamedSymbol(variableDeclarator.Identifier.ValueText, variableType, symbolType);
}
symbolCreationScope.SetToLocalSymbol(newSymbol);
symbolCreationScope.ExecuteSet(initializerCapture.ExecuteGet());
}
}
newSymbol.syncMode = syncMode;
}
VerifySyncValidForType(newSymbol.symbolCsType, syncMode);
newSymbols.Add(newSymbol);
}
if (!visitorContext.resolverContext.IsValidUdonType(variableType))
{
throw new System.NotSupportedException($"Udon does not support variables of type '{variableType.Name}' yet");
}
return(newSymbols);
}
public SymbolDefinition Invoke(SymbolDefinition[] invokeParams)
{
SymbolDefinition methodResult = null;
System.Type resultSymbolType = null;
string lookupSymbolName = null;
switch (captureFunc)
{
case InternalFunc.TypeIDInstance:
case InternalFunc.TypeIDGeneric:
resultSymbolType = typeof(long);
lookupSymbolName = "udonTypeID";
break;
case InternalFunc.TypeNameInstance:
case InternalFunc.TypeNameGeneric:
resultSymbolType = typeof(string);
lookupSymbolName = "udonTypeName";
break;
default:
throw new System.ArgumentException("Invalid internal method invocation");
}
methodResult = visitorContext.topTable.CreateUnnamedSymbol(resultSymbolType, SymbolDeclTypeFlags.Internal);
if (captureFunc == InternalFunc.TypeIDInstance ||
captureFunc == InternalFunc.TypeNameInstance)
{
SymbolDefinition invokeSymbol = captureScope.accessSymbol;
using (ExpressionCaptureScope resultSetterScope = new ExpressionCaptureScope(visitorContext, null))
{
resultSetterScope.SetToLocalSymbol(methodResult);
using (ExpressionCaptureScope getInvokeScope = new ExpressionCaptureScope(visitorContext, null))
{
getInvokeScope.SetToLocalSymbol(invokeSymbol);
getInvokeScope.ResolveAccessToken(nameof(VRC.Udon.UdonBehaviour.GetProgramVariable));
string symbolName = visitorContext.topTable.GetReflectionSymbol(lookupSymbolName, resultSymbolType).symbolUniqueName;
SymbolDefinition invokeResult = getInvokeScope.Invoke(new SymbolDefinition[] { visitorContext.topTable.CreateConstSymbol(typeof(string), symbolName) });
JumpLabel exitBranchJump = visitorContext.labelTable.GetNewJumpLabel("exitUdonTypeIdLoc");
JumpLabel falseBranchLoc = visitorContext.labelTable.GetNewJumpLabel("falseUdonTypeIdLoc");
SymbolDefinition nullCheckSymbol = null;
using (ExpressionCaptureScope nullCheckCondition = new ExpressionCaptureScope(visitorContext, null))
{
nullCheckCondition.SetToMethods(UdonSharpUtils.GetOperators(typeof(object), BuiltinOperatorType.Inequality));
nullCheckSymbol = nullCheckCondition.Invoke(new SymbolDefinition[] { invokeResult, visitorContext.topTable.CreateConstSymbol(typeof(object), null) });
}
visitorContext.uasmBuilder.AddJumpIfFalse(falseBranchLoc, nullCheckSymbol);
resultSetterScope.ExecuteSet(captureScope.CastSymbolToType(invokeResult, resultSymbolType, true));
visitorContext.uasmBuilder.AddJump(exitBranchJump);
// If the value is null
visitorContext.uasmBuilder.AddJumpLabel(falseBranchLoc);
if (captureFunc == InternalFunc.TypeIDInstance)
{
resultSetterScope.ExecuteSet(visitorContext.topTable.CreateConstSymbol(typeof(long), 0L));
}
else
{
resultSetterScope.ExecuteSet(visitorContext.topTable.CreateConstSymbol(typeof(string), "UnknownType"));
}
visitorContext.uasmBuilder.AddJumpLabel(exitBranchJump);
}
}
}
else
{
object resultSymbolValue = null;
if (captureFunc == InternalFunc.TypeIDGeneric)
{
resultSymbolValue = Internal.UdonSharpInternalUtility.GetTypeID(genericType);
}
else if (captureFunc == InternalFunc.TypeNameGeneric)
{
resultSymbolValue = Internal.UdonSharpInternalUtility.GetTypeName(genericType);
}
methodResult = visitorContext.topTable.CreateConstSymbol(resultSymbolType, resultSymbolValue);
}
using (ExpressionCaptureScope propagateScope = new ExpressionCaptureScope(visitorContext, visitorContext.topCaptureScope))
{
propagateScope.SetToLocalSymbol(methodResult);
}
return(methodResult);
}
public override void VisitClassDeclaration(ClassDeclarationSyntax node)
{
UpdateSyntaxNode(node);
using (ExpressionCaptureScope classTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
foreach (string namespaceToken in namespaceStack.Reverse())
{
classTypeCapture.ResolveAccessToken(namespaceToken);
if (classTypeCapture.IsNamespace())
{
visitorContext.resolverContext.AddNamespace(classTypeCapture.captureNamespace);
}
}
classTypeCapture.ResolveAccessToken(node.Identifier.ValueText);
if (!classTypeCapture.IsType())
{
throw new System.Exception($"User type {node.Identifier.ValueText} could not be found");
}
}
if (node.AttributeLists != null)
{
foreach (AttributeListSyntax attributeList in node.AttributeLists)
{
foreach (AttributeSyntax attribute in attributeList.Attributes)
{
System.Type captureType = null;
using (ExpressionCaptureScope attributeTypeScope = new ExpressionCaptureScope(visitorContext, null))
{
attributeTypeScope.isAttributeCaptureScope = true;
Visit(attribute.Name);
captureType = attributeTypeScope.captureType;
}
if (captureType != null && captureType == typeof(UdonBehaviourSyncModeAttribute))
{
if (attribute.ArgumentList != null &&
attribute.ArgumentList.Arguments != null &&
attribute.ArgumentList.Arguments.Count == 1)
{
using (ExpressionCaptureScope attributeCaptureScope = new ExpressionCaptureScope(visitorContext, null))
{
Visit(attribute.ArgumentList.Arguments[0].Expression);
if (!attributeCaptureScope.IsEnum())
{
throw new System.Exception("Invalid attribute argument provided for behaviour sync");
}
visitorContext.behaviourSyncMode = (BehaviourSyncMode)attributeCaptureScope.GetEnumValue();
}
}
}
}
}
}
if (syntaxWalkerDepth == UdonSharpSyntaxWalkerDepth.ClassDefinitions ||
syntaxWalkerDepth == UdonSharpSyntaxWalkerDepth.ClassMemberBodies)
{
base.VisitClassDeclaration(node);
}
}
public InternalMethodHandler(ASTVisitorContext visitorContextIn, ExpressionCaptureScope captureScopeIn)
{
visitorContext = visitorContextIn;
captureScope = captureScopeIn;
}
public override void VisitMethodDeclaration(MethodDeclarationSyntax node)
{
UpdateSyntaxNode(node);
MethodDefinition methodDefinition = new MethodDefinition();
methodDefinition.declarationFlags = node.Modifiers.HasModifier("public") ? MethodDeclFlags.Public : MethodDeclFlags.Private;
methodDefinition.methodUdonEntryPoint = visitorContext.labelTable.GetNewJumpLabel("udonMethodEntryPoint");
methodDefinition.methodUserCallStart = visitorContext.labelTable.GetNewJumpLabel("userMethodCallEntry");
methodDefinition.methodReturnPoint = visitorContext.labelTable.GetNewJumpLabel("methodReturnPoint");
string methodName = node.Identifier.ValueText;
methodDefinition.originalMethodName = methodName;
methodDefinition.uniqueMethodName = methodDefinition.originalMethodName;
visitorContext.resolverContext.ReplaceInternalEventName(ref methodDefinition.uniqueMethodName);
foreach (string builtinMethodName in builtinMethodNames)
{
if (methodName == builtinMethodName)
{
throw new System.Exception($"Cannot define method '{methodName}' with the same name as a built-in UdonSharpBehaviour method");
}
}
// Resolve the type arguments
using (ExpressionCaptureScope returnTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
Visit(node.ReturnType);
if (returnTypeCapture.captureType != typeof(void))
{
methodDefinition.returnSymbol = visitorContext.topTable.CreateNamedSymbol("returnValSymbol", returnTypeCapture.captureType, SymbolDeclTypeFlags.Internal);
if (!visitorContext.resolverContext.IsValidUdonType(returnTypeCapture.captureType))
{
throw new System.NotSupportedException($"Udon does not support return values of type '{returnTypeCapture.captureType.Name}' yet");
}
}
}
methodDefinition.parameters = new ParameterDefinition[node.ParameterList.Parameters.Count];
for (int i = 0; i < node.ParameterList.Parameters.Count; ++i)
{
ParameterSyntax parameter = node.ParameterList.Parameters[i];
ParameterDefinition paramDef = new ParameterDefinition();
using (ExpressionCaptureScope paramTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
Visit(parameter.Type);
if (!paramTypeCapture.IsType())
{
throw new System.TypeLoadException($"The type or namespace name '{parameter.Type}' could not be found (are you missing a using directive?)");
}
if (!visitorContext.resolverContext.IsValidUdonType(paramTypeCapture.captureType))
{
throw new System.NotSupportedException($"Udon does not support method parameters of type '{paramTypeCapture.captureType.Name}' yet");
}
paramDef.type = paramTypeCapture.captureType;
paramDef.symbolName = parameter.Identifier.ValueText;
paramDef.paramSymbol = visitorContext.topTable.CreateNamedSymbol(parameter.Identifier.ValueText, paramDef.type, SymbolDeclTypeFlags.Local | SymbolDeclTypeFlags.MethodParameter);
}
methodDefinition.parameters[i] = paramDef;
}
definedMethods.Add(methodDefinition);
}
public override void VisitPropertyDeclaration(PropertyDeclarationSyntax node)
{
UpdateSyntaxNode(node);
PropertyDefinition propertyDefinition = new PropertyDefinition();
propertyDefinition.declarationFlags = node.Modifiers.HasModifier("public") ? PropertyDeclFlags.Public : PropertyDeclFlags.Private;
propertyDefinition.originalPropertyName = node.Identifier.Text;
Type type = null;
using (ExpressionCaptureScope propertyTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
Visit(node.Type);
type = propertyTypeCapture.captureType;
if (!visitorContext.resolverContext.IsValidUdonType(type))
{
throw new NotSupportedException($"Udon does not support variable of type '{type}' yet");
}
}
BackingFieldDefinition backingField = new BackingFieldDefinition();
backingField.backingFieldName = $"{node.Identifier.Text}_k_BackingField";
if (node.AttributeLists != null && node.AttributeLists.Any())
{
foreach (AttributeListSyntax attributes in node.AttributeLists)
{
if (attributes.Target != null && attributes.Target.Identifier.Kind() == SyntaxKind.FieldKeyword)
{
foreach (AttributeSyntax attribute in attributes.Attributes)
{
using (ExpressionCaptureScope attributeTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
attributeTypeCapture.isAttributeCaptureScope = true;
Visit(attribute.Name);
backingField.synced = true;
if (attributeTypeCapture.captureType != typeof(UdonSyncedAttribute))
{
continue;
}
if (attribute.ArgumentList == null || attribute.ArgumentList.Arguments == null || attribute.ArgumentList.Arguments.Count == 0)
{
backingField.syncMode = UdonSyncMode.None;
}
else
{
using (ExpressionCaptureScope attributeCaptureScope = new ExpressionCaptureScope(visitorContext, null))
{
Visit(attribute.ArgumentList.Arguments[0].Expression);
if (!attributeCaptureScope.IsEnum())
{
throw new Exception("Invalid attribute argument provided for sync");
}
backingField.syncMode = (UdonSyncMode)attributeCaptureScope.GetEnumValue();
}
}
break;
}
}
}
if (backingField.synced)
{
break;
}
}
}
backingField.type = type;
propertyDefinition.type = type;
backingField.type = type;
if (node.AccessorList != null)
{
foreach (AccessorDeclarationSyntax accessor in node.AccessorList.Accessors)
{
bool isSetter = accessor.Keyword.Kind() == SyntaxKind.SetKeyword;
if (isSetter)
{
SetterDefinition setter = new SetterDefinition();
setter.accessorName = $"_set_{node.Identifier.Text}";
setter.entryPoint = visitorContext.labelTable.GetNewJumpLabel("udonMethodEntryPoint");
setter.userCallStart = visitorContext.labelTable.GetNewJumpLabel("userMethodCallEntry");
setter.returnPoint = visitorContext.labelTable.GetNewJumpLabel("methodReturnPoint");
setter.backingField = (accessor.Body == null && accessor.ExpressionBody == null) ? backingField : null;
setter.type = type;
setter.declarationFlags = GetDeclFlags(accessor);
setter.paramSymbol = visitorContext.topTable.CreateNamedSymbol("value", type, SymbolDeclTypeFlags.Local | SymbolDeclTypeFlags.MethodParameter);
propertyDefinition.setter = setter;
}
else
{
GetterDefinition getter = new GetterDefinition();
getter.accessorName = $"_get_{node.Identifier.Text}";
getter.entryPoint = visitorContext.labelTable.GetNewJumpLabel("udonMethodEntryPoint");
getter.userCallStart = visitorContext.labelTable.GetNewJumpLabel("userMethodCallEntry");
getter.returnPoint = visitorContext.labelTable.GetNewJumpLabel("methodReturnPoint");
getter.backingField = (accessor.Body == null && accessor.ExpressionBody == null) ? backingField : null;
getter.type = type;
getter.declarationFlags = GetDeclFlags(accessor);
using (ExpressionCaptureScope returnTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
Visit(node.Type);
getter.returnSymbol = visitorContext.topTable.CreateNamedSymbol("returnValSymbol", returnTypeCapture.captureType, SymbolDeclTypeFlags.Internal);
}
propertyDefinition.getter = getter;
}
}
}
else
{
GetterDefinition getter = new GetterDefinition();
getter.accessorName = $"_get_{node.Identifier.Text}";
getter.entryPoint = visitorContext.labelTable.GetNewJumpLabel("udonMethodEntryPoint");
getter.userCallStart = visitorContext.labelTable.GetNewJumpLabel("userMethodCallEntry");
getter.returnPoint = visitorContext.labelTable.GetNewJumpLabel("methodReturnPoint");
getter.type = type;
getter.declarationFlags = PropertyDeclFlags.Public;
using (ExpressionCaptureScope returnTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
Visit(node.Type);
getter.returnSymbol = visitorContext.topTable.CreateNamedSymbol("returnValSymbol", returnTypeCapture.captureType, SymbolDeclTypeFlags.Internal);
}
propertyDefinition.getter = getter;
}
if (propertyDefinition.setter?.backingField != null || propertyDefinition.getter?.backingField != null)
{
backingField.fieldSymbol = visitorContext.topTable.CreateNamedSymbol("kBackingField", type, SymbolDeclTypeFlags.Internal | SymbolDeclTypeFlags.PropertyBackingField);
backingField.fieldSymbol.syncMode = backingField.syncMode;
if (backingField.synced)
{
VerifySyncValidForType(backingField.type, backingField.fieldSymbol.syncMode);
}
}
definedProperties.Add(propertyDefinition);
}
private List <System.Attribute> GetFieldAttributes(FieldDeclarationSyntax node)
{
List <System.Attribute> attributes = new List <System.Attribute>();
if (node.AttributeLists != null)
{
foreach (AttributeListSyntax attributeList in node.AttributeLists)
{
UpdateSyntaxNode(attributeList);
foreach (AttributeSyntax attribute in attributeList.Attributes)
{
using (ExpressionCaptureScope attributeTypeCapture = new ExpressionCaptureScope(visitorContext, null))
{
attributeTypeCapture.isAttributeCaptureScope = true;
Visit(attribute.Name);
System.Type captureType = attributeTypeCapture.captureType;
if (captureType == typeof(UdonSyncedAttribute))
{
UdonSyncMode syncMode = UdonSyncMode.NotSynced;
if (attribute.ArgumentList == null ||
attribute.ArgumentList.Arguments == null ||
attribute.ArgumentList.Arguments.Count == 0)
{
syncMode = UdonSyncMode.None;
}
else
{
using (ExpressionCaptureScope attributeCaptureScope = new ExpressionCaptureScope(visitorContext, null))
{
Visit(attribute.ArgumentList.Arguments[0].Expression);
if (!attributeCaptureScope.IsEnum())
{
throw new System.Exception("Invalid attribute argument provided for sync");
}
syncMode = (UdonSyncMode)attributeCaptureScope.GetEnumValue();
}
}
attributes.Add(new UdonSyncedAttribute(syncMode));
}
else if (captureType != null)
{
try
{
object attributeObject = null;
if (attribute.ArgumentList == null ||
attribute.ArgumentList.Arguments == null ||
attribute.ArgumentList.Arguments.Count == 0)
{
attributeObject = System.Activator.CreateInstance(captureType);
}
else
{
// todo: requires constant folding to support decently
object[] attributeArgs = new object[attribute.ArgumentList.Arguments.Count];
for (int i = 0; i < attributeArgs.Length; ++i)
{
AttributeArgumentSyntax attributeArg = attribute.ArgumentList.Arguments[i];
using (ExpressionCaptureScope attributeCapture = new ExpressionCaptureScope(visitorContext, null))
{
Visit(attributeArg);
SymbolDefinition attrSymbol = attributeCapture.ExecuteGet();
if (!attrSymbol.declarationType.HasFlag(SymbolDeclTypeFlags.Constant))
{
throw new System.ArgumentException("Attributes do not support non-constant expressions");
}
attributeArgs[i] = attrSymbol.symbolDefaultValue;
}
}
attributeObject = System.Activator.CreateInstance(captureType, attributeArgs);
}
if (attributeObject != null)
{
attributes.Add((System.Attribute)attributeObject);
}
}
catch (System.Reflection.TargetInvocationException constructionException)
{
throw constructionException.InnerException;
}
}
}
}
}
}
return(attributes);
}
