if (FileReaderVisitor.fileReaders.contains(node)) return;
    public void visitNode(FlatNode node)     {	//this is a mapped joiner	if (Layout.joiners.contains(node)) {	    realTiles.add(Layout.getTile(node.contents));	    joinerCode(node);	}	if (node.contents instanceof SIRFilter) {	    realTiles.add(Layout.getTile(node.contents));	    FlatIRToC.generateCode(node);	}    }