static AstInterfaceNode ParseInterface(AstAttributes interfaceAttrs, ref TokenParser parser)
{
var interfaceName = parser.ParseIdentifier();
string inheritsFrom = null;
if (parser.TryConsume(":"))
{
inheritsFrom = parser.ParseIdentifier();
}
EnsureOpenBracket(ref parser);
var rv = new AstInterfaceNode
{
Name = interfaceName, Attributes = interfaceAttrs, Inherits = inheritsFrom
};
while (!parser.TryConsume('}') && !parser.Eof)
{
var memberAttrs = ParseLocalAttributes(ref parser);
var returnType = ParseType(ref parser);
var name = parser.ParseIdentifier();
var member = new AstInterfaceMemberNode
{
Name = name, ReturnType = returnType, Attributes = memberAttrs
};
rv.Add(member);
parser.Consume('(');
while (true)
{
if (parser.TryConsume(')'))
{
break;
}
var argumentAttrs = ParseLocalAttributes(ref parser);
var type = ParseType(ref parser);
var argName = parser.ParseIdentifier();
member.Add(new AstInterfaceMemberArgumentNode
{
Name = argName, Type = type, Attributes = argumentAttrs
});
if (parser.TryConsume(')'))
{
break;
}
if (parser.TryConsume(','))
{
continue;
}
throw new ParseException("Unexpected character", ref parser);
}
parser.Consume(';');
}
return(rv);
}
void GenerateInterface(ref NamespaceDeclarationSyntax ns, ref NamespaceDeclarationSyntax implNs,
AstInterfaceNode iface)
{
var guidString = iface.GetAttribute("uuid");
var inheritsUnknown = iface.Inherits == null || iface.Inherits == "IUnknown";
var ifaceDec = InterfaceDeclaration(iface.Name)
.WithBaseType(inheritsUnknown ? "Avalonia.MicroCom.IUnknown" : iface.Inherits)
.AddModifiers(Token(_visibility), Token(SyntaxKind.UnsafeKeyword), Token(SyntaxKind.PartialKeyword));
var proxyClassName = "__MicroCom" + iface.Name + "Proxy";
var proxy = ClassDeclaration(proxyClassName)
.AddModifiers(Token(SyntaxKind.UnsafeKeyword), Token(_visibility), Token(SyntaxKind.PartialKeyword))
.WithBaseType(inheritsUnknown ?
"Avalonia.MicroCom.MicroComProxyBase" :
("__MicroCom" + iface.Inherits + "Proxy"))
.AddBaseListTypes(SimpleBaseType(ParseTypeName(iface.Name)));
// Generate vtable
var vtbl = ClassDeclaration("__MicroCom" + iface.Name + "VTable")
.AddModifiers(Token(SyntaxKind.UnsafeKeyword));
vtbl = vtbl.WithBaseType(inheritsUnknown ?
"Avalonia.MicroCom.MicroComVtblBase" :
"__MicroCom" + iface.Inherits + "VTable");
var vtblCtor = new List <StatementSyntax>();
for (var idx = 0; idx < iface.Count; idx++)
{
GenerateInterfaceMember(iface[idx], ref ifaceDec, ref proxy, ref vtbl, vtblCtor, idx);
}
vtbl = vtbl.AddMembers(
ConstructorDeclaration(vtbl.Identifier.Text)
.AddModifiers(Token(SyntaxKind.PublicKeyword))
.WithBody(Block(vtblCtor))
)
.AddMembers(MethodDeclaration(ParseTypeName("void"), "__MicroComModuleInit")
.AddModifiers(Token(SyntaxKind.StaticKeyword), Token(SyntaxKind.InternalKeyword))
.WithExpressionBody(ArrowExpressionClause(
ParseExpression("Avalonia.MicroCom.MicroComRuntime.RegisterVTable(typeof(" +
iface.Name + "), new " + vtbl.Identifier.Text + "().CreateVTable())")))
.WithSemicolonToken(Semicolon()));
// Finalize proxy code
proxy = proxy.AddMembers(
MethodDeclaration(ParseTypeName("void"), "__MicroComModuleInit")
.AddModifiers(Token(SyntaxKind.StaticKeyword), Token(SyntaxKind.InternalKeyword))
.WithBody(Block(
ParseStatement("Avalonia.MicroCom.MicroComRuntime.Register(typeof(" +
iface.Name + "), new Guid(\"" + guidString + "\"), (p, owns) => new " +
proxyClassName + "(p, owns));")
)))
.AddMembers(ParseMemberDeclaration("public " + proxyClassName +
"(IntPtr nativePointer, bool ownsHandle) : base(nativePointer, ownsHandle) {}"))
.AddMembers(ParseMemberDeclaration("protected override int VTableSize => base.VTableSize + " +
iface.Count + ";"));
ns = ns.AddMembers(RewriteMethodsToProperties(ifaceDec));
implNs = implNs.AddMembers(RewriteMethodsToProperties(proxy), RewriteMethodsToProperties(vtbl));
}
