private static bool _parseReference(MacroContext context, AstExpr macroRef)
{
if (macroRef.IsPlaceholder())
{
context.ReportMessage(
Message.Error(
Resources.CallMacro_notOnPlaceholder, context.Invocation.Position,
MessageClasses.CallMacroNotOnPlaceholder));
return false;
}
return true;
}
private static bool _hasPlaceholder(AstExpr expr)
{
var lit = expr as AstListLiteral;
return expr.IsPlaceholder() || (lit != null && lit.CheckForPlaceholders());
}
private static bool _parsePrototype(MacroContext context,
AstExpr specProto, out PCall protoCall, out IList<AstExpr> protoArguments,
out AstExpr macroSpec)
{
var proto2 = specProto as AstExpand;
if (specProto.IsPlaceholder())
{
//As an exception, allow a placeholder here
macroSpec = specProto;
protoCall = PCall.Get;
protoArguments = new List<AstExpr>();
}
else if (proto2 != null)
{
macroSpec = _getMacroSpecExpr(context, proto2);
protoCall = proto2.Call;
protoArguments = proto2.Arguments;
}
else
{
_errorUsagePrototype(context);
macroSpec = null;
protoCall = PCall.Get;
protoArguments = null;
return false;
}
return true;
}