Optional
callif the vertex calls a function, this links all targets of this call
Optional
childrenchild nodes attached to this one
The vertices that are part of this block, only connected by FDs, vertices should never occur in multiple bbs
the id of the vertex, for non-blocks this should directly relate to the AST node
the type of the vertex
A plain vertex in the ControlFlowGraph. Please use CfgSimpleVertex to refer to all potential vertex types within the graph.