public Void visit()

in asterix-graphix/src/main/java/org/apache/asterix/graphix/lang/rewrite/print/GraphixASTPrintVisitor.java [130:164]

34 lines of code
9 McCabe index (conditional complexity)


    public Void visit(PathPatternExpr pathPatternExpr, Integer step) throws CompilationException {
        List<VertexPatternExpr> danglingVertices = pathPatternExpr.getVertexExpressions().stream().filter(v -> {
            // Collect all vertices that are not attached to an edge.
            for (EdgePatternExpr edgeExpression : pathPatternExpr.getEdgeExpressions()) {
                VertexPatternExpr leftVertex = edgeExpression.getLeftVertex();
                VertexPatternExpr rightVertex = edgeExpression.getRightVertex();
                if (leftVertex == v || rightVertex == v) {
                    return false;
                }
            }
            return true;
        }).collect(Collectors.toList());
        int index = 0;
        for (VertexPatternExpr vertexPatternExpr : danglingVertices) {
            if (index > 0) {
                out.print(skip(step) + ",");
            }
            vertexPatternExpr.accept(this, step);
            out.println();
            index++;
        }
        for (EdgePatternExpr edgeExpression : pathPatternExpr.getEdgeExpressions()) {
            if (index > 0) {
                out.print(skip(step) + ",");
            }
            edgeExpression.accept(this, step);
            out.println();
            index++;
        }
        if (pathPatternExpr.getVariableExpr() != null) {
            out.print(skip(step) + "AS ");
            pathPatternExpr.getVariableExpr().accept(this, 0);
        }
        return null;
    }