7820380e
 “wangming”
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'use strict'
let Declaration = require('./declaration')
let PreviousMap = require('./previous-map')
let Comment = require('./comment')
let AtRule = require('./at-rule')
let Input = require('./input')
let Root = require('./root')
let Rule = require('./rule')
function fromJSON(json, inputs) {
if (Array.isArray(json)) return json.map(n => fromJSON(n))
let { inputs: ownInputs, ...defaults } = json
if (ownInputs) {
inputs = []
for (let input of ownInputs) {
let inputHydrated = { ...input, __proto__: Input.prototype }
if (inputHydrated.map) {
inputHydrated.map = {
...inputHydrated.map,
__proto__: PreviousMap.prototype
}
}
inputs.push(inputHydrated)
}
}
if (defaults.nodes) {
defaults.nodes = json.nodes.map(n => fromJSON(n, inputs))
}
if (defaults.source) {
let { inputId, ...source } = defaults.source
defaults.source = source
if (inputId != null) {
defaults.source.input = inputs[inputId]
}
}
if (defaults.type === 'root') {
return new Root(defaults)
} else if (defaults.type === 'decl') {
return new Declaration(defaults)
} else if (defaults.type === 'rule') {
return new Rule(defaults)
} else if (defaults.type === 'comment') {
return new Comment(defaults)
} else if (defaults.type === 'atrule') {
return new AtRule(defaults)
} else {
throw new Error('Unknown node type: ' + json.type)
}
}
module.exports = fromJSON
fromJSON.default = fromJSON
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