private void ImportMethods(TypeSymbol typeSymbol)
{
// NOTE: We do not import parameters for imported members.
// Parameters are used in the script model generation phase to populate
// symbol tables, which is not done for imported methods.
TypeDefinition type = (TypeDefinition)typeSymbol.MetadataReference;
foreach (MethodDefinition method in type.Methods) {
if (method.IsSpecialName) {
continue;
}
if (method.IsPrivate || method.IsAssembly || method.IsFamilyAndAssembly) {
continue;
}
string methodName = method.Name;
if (typeSymbol.GetMember(methodName) != null) {
// Ignore if its an overload since we don't care about parameters
// for imported methods, overloaded ctors don't matter.
// We just care about return values pretty much, and existence of the
// method.
continue;
}
TypeSymbol returnType = ResolveType(method.MethodReturnType.ReturnType);
if (returnType == null) {
continue;
}
MethodSymbol methodSymbol = new MethodSymbol(methodName, typeSymbol, returnType);
ImportMemberDetails(methodSymbol, method, method);
if (method.HasGenericParameters) {
List<GenericParameterSymbol> genericArguments = new List<GenericParameterSymbol>();
foreach (GenericParameter genericParameter in method.GenericParameters) {
GenericParameterSymbol arg =
new GenericParameterSymbol(genericParameter.Position, genericParameter.Name,
/* typeArgument */ false,
_symbols.GlobalNamespace);
genericArguments.Add(arg);
}
methodSymbol.AddGenericArguments(genericArguments);
}
if (method.IsAbstract) {
// NOTE: We're ignoring the override scenario - it doesn't matter in terms
// of the compilation and code generation
methodSymbol.SetImplementationState(SymbolImplementationFlags.Abstract);
}
if (MetadataHelpers.ShouldSkipFromScript(method)) {
methodSymbol.SetSkipGeneration();
}
if ((methodSymbol.Visibility & MemberVisibility.Static) != 0) {
string alias = MetadataHelpers.GetScriptAlias(method);
if (String.IsNullOrEmpty(alias) == false) {
methodSymbol.SetAlias(alias);
}
}
ICollection<string> conditions;
if (MetadataHelpers.ShouldTreatAsConditionalMethod(method, out conditions)) {
methodSymbol.SetConditions(conditions);
}
typeSymbol.AddMember(methodSymbol);
}
}
private void BuildMembers(TypeSymbol typeSymbol) {
if (typeSymbol.Type == SymbolType.Delegate) {
DelegateTypeNode delegateNode = (DelegateTypeNode)typeSymbol.ParseContext;
TypeSymbol returnType = typeSymbol.SymbolSet.ResolveType(delegateNode.ReturnType, _symbolTable, typeSymbol);
Debug.Assert(returnType != null);
if (returnType != null) {
MethodSymbol invokeMethod = new MethodSymbol("Invoke", typeSymbol, returnType, MemberVisibility.Public);
invokeMethod.SetTransformedName(String.Empty);
// Mark the method as abstract, as there is no actual implementation of the method
// to be generated
invokeMethod.SetImplementationState(SymbolImplementationFlags.Abstract);
typeSymbol.AddMember(invokeMethod);
}
return;
}
CustomTypeNode typeNode = (CustomTypeNode)typeSymbol.ParseContext;
foreach (MemberNode member in typeNode.Members) {
MemberSymbol memberSymbol = null;
switch (member.NodeType) {
case ParseNodeType.FieldDeclaration:
case ParseNodeType.ConstFieldDeclaration:
memberSymbol = BuildField((FieldDeclarationNode)member, typeSymbol);
break;
case ParseNodeType.PropertyDeclaration:
memberSymbol = BuildPropertyAsField((PropertyDeclarationNode)member, typeSymbol);
if (memberSymbol == null) {
memberSymbol = BuildProperty((PropertyDeclarationNode)member, typeSymbol);
}
break;
case ParseNodeType.IndexerDeclaration:
memberSymbol = BuildIndexer((IndexerDeclarationNode)member, typeSymbol);
break;
case ParseNodeType.ConstructorDeclaration:
case ParseNodeType.MethodDeclaration:
if ((member.Modifiers & Modifiers.Extern) != 0) {
// Extern methods are there for defining overload signatures, so
// we just skip them as far as metadata goes. The validator has
// taken care of the requirements/constraints around use of extern methods.
continue;
}
memberSymbol = BuildMethod((MethodDeclarationNode)member, typeSymbol);
break;
case ParseNodeType.EventDeclaration:
memberSymbol = BuildEvent((EventDeclarationNode)member, typeSymbol);
break;
case ParseNodeType.EnumerationFieldDeclaration:
memberSymbol = BuildEnumField((EnumerationFieldNode)member, typeSymbol);
break;
}
if (memberSymbol != null) {
memberSymbol.SetParseContext(member);
if ((typeSymbol.IsApplicationType == false) &&
((memberSymbol.Type == SymbolType.Constructor) ||
(typeSymbol.GetMember(memberSymbol.Name) != null))) {
// If the type is an imported type, then it is allowed to contain
// overloads, and we're simply going to ignore its existence, as long
// as one overload has been added to the member table.
continue;
}
typeSymbol.AddMember(memberSymbol);
if ((typeSymbol.Type == SymbolType.Class) && (memberSymbol.Type == SymbolType.Event)) {
EventSymbol eventSymbol = (EventSymbol)memberSymbol;
if (eventSymbol.DefaultImplementation) {
// Add a private field that will serve as the backing member
// later on in the conversion (eg. in non-event expressions)
MemberVisibility visibility = MemberVisibility.PrivateInstance;
if ((eventSymbol.Visibility & MemberVisibility.Static) != 0) {
visibility |= MemberVisibility.Static;
}
FieldSymbol fieldSymbol =
new FieldSymbol("__" + Utility.CreateCamelCaseName(eventSymbol.Name), typeSymbol,
eventSymbol.AssociatedType);
fieldSymbol.SetVisibility(visibility);
fieldSymbol.SetParseContext(((EventDeclarationNode)eventSymbol.ParseContext).Field);
typeSymbol.AddMember(fieldSymbol);
}
}
}
}
}
private void ImportDelegateInvoke(TypeSymbol delegateTypeSymbol)
{
TypeDefinition type = (TypeDefinition)delegateTypeSymbol.MetadataReference;
foreach (MethodDefinition method in type.Methods) {
if (String.CompareOrdinal(method.Name, "Invoke") != 0) {
continue;
}
TypeSymbol returnType = ResolveType(method.MethodReturnType.ReturnType);
Debug.Assert(returnType != null);
if (returnType == null) {
continue;
}
MethodSymbol methodSymbol = new MethodSymbol("Invoke", delegateTypeSymbol, returnType, MemberVisibility.Public);
methodSymbol.SetImplementationState(SymbolImplementationFlags.Abstract);
methodSymbol.SetTransformedName(String.Empty);
delegateTypeSymbol.AddMember(methodSymbol);
}
}
