AK-21/Graphite-Industrial-Intelligence

1'use strict'2 3let AtRule = require('./at-rule')4let Comment = require('./comment')5let Declaration = require('./declaration')6let Input = require('./input')7let PreviousMap = require('./previous-map')8let Root = require('./root')9let Rule = require('./rule')10 11function fromJSON(json, inputs) {12  if (Array.isArray(json)) return json.map(n => fromJSON(n))13 14  let { inputs: ownInputs, ...defaults } = json15  if (ownInputs) {16    inputs = []17    for (let input of ownInputs) {18      let inputHydrated = { ...input, __proto__: Input.prototype }19      if (inputHydrated.map) {20        inputHydrated.map = {21          ...inputHydrated.map,22          __proto__: PreviousMap.prototype23        }24      }25      inputs.push(inputHydrated)26    }27  }28  // Rehydrate children separately and attach them after construction.29  // Passing them through the container constructor would re-run insertion30  // spacing normalization and overwrite each child's own `raws.before`.31  let nodes32  if (defaults.nodes) {33    nodes = json.nodes.map(n => fromJSON(n, inputs))34    delete defaults.nodes35  }36  if (defaults.source) {37    let { inputId, ...source } = defaults.source38    defaults.source = source39    if (inputId != null) {40      defaults.source.input = inputs[inputId]41    }42  }43 44  let node45  if (defaults.type === 'root') {46    node = new Root(defaults)47  } else if (defaults.type === 'decl') {48    node = new Declaration(defaults)49  } else if (defaults.type === 'rule') {50    node = new Rule(defaults)51  } else if (defaults.type === 'comment') {52    node = new Comment(defaults)53  } else if (defaults.type === 'atrule') {54    node = new AtRule(defaults)55  } else {56    throw new Error('Unknown node type: ' + json.type)57  }58 59  if (nodes) {60    node.nodes = nodes61    for (let child of nodes) child.parent = node62  }63 64  return node65}66 67module.exports = fromJSON68fromJSON.default = fromJSON69