public override void VisitDeclMethod(ASTDeclarationMethod n)
{
n.Modifiers.Visit(this);
MethodBuilderInfo methodInfo = _typeManager.GetMethodBuilderInfo(_currentTypeBuilder.Name, n.Name);
//store a reference so we can access locals, arguments, and stuff about the current method we're working on.
_currentMethodBuilder = methodInfo;
_gen = methodInfo.Builder.GetILGenerator();
//is this the entry point
if (n.Name == MainMethodName)
{
_assemblyBuilder.SetEntryPoint(methodInfo.Builder);
}
n.Body.Visit(this);
//we need to explicitly put a return statement for voids
if (_typeManager.LookupCilType(n.ReturnType) == typeof(void))
{
_gen.Emit(OpCodes.Ret);
}
}
public override void VisitInvoke(ASTInvoke n)
{
if (SystemMethodManager.IsSystemMethod(n.Method))
{
n.Actuals.Visit(this);
SystemMethod method = SystemMethodManager.Lookup(n.Method);
method.Emit(_gen);
//store the return type so we can invoke methods and stuff on it.
_lastWalkedType = _typeManager.LookupCilType(method.FuncInfo.ReturnType);
}
else
{
//push who
n.Object.Visit(this);
Type who = _lastWalkedType;
//push actuals
n.Actuals.Visit(this);
//find the method to execute on the given class
MethodBuilderInfo info = _typeManager.GetMethodBuilderInfo(who.Name, n.Method);
_gen.Emit(OpCodes.Callvirt, info.Builder);
//store the return type of the method
_lastWalkedType = info.Builder.ReturnType;
}
}