Method addEdge

src/main/java/pascal/taie/util/graph/SimpleGraph.java:68–73

(N source, N target)

    }

    public void addEdge(N source, N target) {
        nodes.add(source);
        nodes.add(target);
        preds.put(target, source);
        succs.put(source, target);
    }

    /**
     * Removes a node from this graph.