protected override bool DoDefineMembers()
{
if (IsGeneric)
{
foreach (TypeParameter type_param in TypeParameters)
{
if (!type_param.Resolve(this))
{
return(false);
}
}
foreach (TypeParameter type_param in TypeParameters)
{
if (!type_param.DefineType(this))
{
return(false);
}
}
}
member_cache = new MemberCache(TypeManager.multicast_delegate_type, this);
// FIXME: POSSIBLY make this static, as it is always constant
//
Type [] const_arg_types = new Type [2];
const_arg_types [0] = TypeManager.object_type;
const_arg_types [1] = TypeManager.intptr_type;
const MethodAttributes ctor_mattr = MethodAttributes.RTSpecialName | MethodAttributes.SpecialName |
MethodAttributes.HideBySig | MethodAttributes.Public;
ConstructorBuilder = TypeBuilder.DefineConstructor(ctor_mattr,
CallingConventions.Standard,
const_arg_types);
ConstructorBuilder.DefineParameter(1, ParameterAttributes.None, "object");
ConstructorBuilder.DefineParameter(2, ParameterAttributes.None, "method");
//
// HACK because System.Reflection.Emit is lame
//
IParameterData [] fixed_pars = new IParameterData [] {
new ParameterData("object", Parameter.Modifier.NONE),
new ParameterData("method", Parameter.Modifier.NONE)
};
AParametersCollection const_parameters = new ParametersImported(
fixed_pars,
new Type[] { TypeManager.object_type, TypeManager.intptr_type });
TypeManager.RegisterMethod(ConstructorBuilder, const_parameters);
member_cache.AddMember(ConstructorBuilder, this);
ConstructorBuilder.SetImplementationFlags(MethodImplAttributes.Runtime);
//
// Here the various methods like Invoke, BeginInvoke etc are defined
//
// First, call the `out of band' special method for
// defining recursively any types we need:
if (!Parameters.Resolve(this))
{
return(false);
}
//
// Invoke method
//
// Check accessibility
foreach (Type partype in Parameters.Types)
{
if (!IsAccessibleAs(partype))
{
Report.SymbolRelatedToPreviousError(partype);
Report.Error(59, Location,
"Inconsistent accessibility: parameter type `{0}' is less accessible than delegate `{1}'",
TypeManager.CSharpName(partype),
GetSignatureForError());
return(false);
}
}
ReturnType = ReturnType.ResolveAsTypeTerminal(this, false);
if (ReturnType == null)
{
return(false);
}
ret_type = ReturnType.Type;
if (!IsAccessibleAs(ret_type))
{
Report.SymbolRelatedToPreviousError(ret_type);
Report.Error(58, Location,
"Inconsistent accessibility: return type `" +
TypeManager.CSharpName(ret_type) + "' is less " +
"accessible than delegate `" + GetSignatureForError() + "'");
return(false);
}
CheckProtectedModifier();
if (RootContext.StdLib && TypeManager.IsSpecialType(ret_type))
{
Method.Error1599(Location, ret_type, Report);
return(false);
}
TypeManager.CheckTypeVariance(ret_type, Variance.Covariant, this);
//
// We don't have to check any others because they are all
// guaranteed to be accessible - they are standard types.
//
CallingConventions cc = Parameters.CallingConvention;
InvokeBuilder = TypeBuilder.DefineMethod("Invoke",
mattr,
cc,
ret_type,
Parameters.GetEmitTypes());
InvokeBuilder.SetImplementationFlags(MethodImplAttributes.Runtime);
TypeManager.RegisterMethod(InvokeBuilder, Parameters);
member_cache.AddMember(InvokeBuilder, this);
//
// Don't emit async method for compiler generated delegates (e.g. dynamic site containers)
//
if (TypeManager.iasyncresult_type != null && TypeManager.asynccallback_type != null && !IsCompilerGenerated)
{
DefineAsyncMethods(cc);
}
return(true);
}
void DefineAsyncMethods(CallingConventions cc)
{
//
// BeginInvoke
//
Parameters async_parameters = Parameters.MergeGenerated(Parameters, false,
new Parameter [] {
new Parameter(null, "callback", Parameter.Modifier.NONE, null, Location),
new Parameter(null, "object", Parameter.Modifier.NONE, null, Location)
},
new Type [] {
TypeManager.asynccallback_type,
TypeManager.object_type
}
);
BeginInvokeBuilder = TypeBuilder.DefineMethod("BeginInvoke",
mattr, cc, TypeManager.iasyncresult_type, async_parameters.GetEmitTypes());
BeginInvokeBuilder.SetImplementationFlags(MethodImplAttributes.Runtime);
TypeManager.RegisterMethod(BeginInvokeBuilder, async_parameters);
member_cache.AddMember(BeginInvokeBuilder, this);
//
// EndInvoke is a bit more interesting, all the parameters labeled as
// out or ref have to be duplicated here.
//
//
// Define parameters, and count out/ref parameters
//
Parameters end_parameters;
int out_params = 0;
foreach (Parameter p in Parameters.FixedParameters)
{
if ((p.ModFlags & Parameter.Modifier.ISBYREF) != 0)
{
++out_params;
}
}
if (out_params > 0)
{
Type [] end_param_types = new Type [out_params];
Parameter[] end_params = new Parameter [out_params];
int param = 0;
for (int i = 0; i < Parameters.FixedParameters.Length; ++i)
{
Parameter p = Parameters [i];
if ((p.ModFlags & Parameter.Modifier.ISBYREF) == 0)
{
continue;
}
end_param_types [param] = Parameters.Types [i];
end_params [param] = p;
++param;
}
end_parameters = Parameters.CreateFullyResolved(end_params, end_param_types);
}
else
{
end_parameters = Parameters.EmptyReadOnlyParameters;
}
end_parameters = Parameters.MergeGenerated(end_parameters, false,
new Parameter(null, "result", Parameter.Modifier.NONE, null, Location), TypeManager.iasyncresult_type);
//
// Create method, define parameters, register parameters with type system
//
EndInvokeBuilder = TypeBuilder.DefineMethod("EndInvoke", mattr, cc, ret_type, end_parameters.GetEmitTypes());
EndInvokeBuilder.SetImplementationFlags(MethodImplAttributes.Runtime);
end_parameters.ApplyAttributes(EndInvokeBuilder);
TypeManager.RegisterMethod(EndInvokeBuilder, end_parameters);
member_cache.AddMember(EndInvokeBuilder, this);
}