ast-parentchild/node/util.js

Convert your JavaScript file to acron AST format and then output a json file whihc have parent-child realtionship between nodes

const MAX_LEN = 32;

module.exports = class BBox {
  constructor(x=0, y=0, width=0, height=0) {
    this.x = x;
    this.y = y;
    this.width = width;
    this.height = height;
  }
}


export function appendRectText(g, x, y, text, pad) {
  if (typeof text === 'string' && text.length > MAX_LEN) {
    text = text.substr(0, MAX_LEN) + '...';
  }

  const rect = g.append('rect')
    .attr('class', getClassName(text));

  const t = g.append('text')
    .text(text);

  const b = t.node().getBBox();
  const w = Math.ceil(b.width);
  const h = Math.ceil(b.height);

  t
    .attr('x', x + pad)
    .attr('y', y + pad + h);

  const bbox = new BBox(x, y, w + pad * 2, h + pad * 2);

  rect
    .attr('x', bbox.x)
    .attr('y', bbox.y)
    .attr('width', bbox.width)
    .attr('height', bbox.height);

  return bbox;
}


function getClassName(d) {
  var name = '';
  const type = typeof d;

  if (d === null) {
    return 'null-text';
  } else if (type === 'string') {
    name = 'string-text';
  } else if (type === 'number') {
    name = 'number-text';
  } else if (type === 'boolean') {
    name = 'boolean-text';
  } else {
    name = 'unknown-text';
  }

  return name;
}