Function buildOpeningElementAttributes

index.js:162–202

* The logic for this is quite terse. It's because we need to * support spread elements. We loop over all attributes, * breaking on spreads, we then push a new object containing * all prior attributes to an array for later processing.

(attribs, path)

   */

  function buildOpeningElementAttributes (attribs, path) {
    var _props = []
    var objs = []

    function pushProps () {
      if (!_props.length) return
      objs.push(t.objectExpression(_props))
      _props = []
    }

    while (attribs.length) {
      var prop = attribs.shift()
      if (t.isJSXSpreadAttribute(prop)) {
        pushProps()
        prop.argument._isSpread = true
        objs.push(prop.argument)
      } else {
        _props.push(convertAttribute(prop))
      }
    }

    pushProps()

    objs = objs.map(function (o) {
      return o._isSpread ? o : groupProps(o.properties, t)
    })

    if (objs.length === 1) {
      // only one object
      attribs = objs[0]
    } else if (objs.length) {
      // add prop merging helper
      var helper = addDefault(path, 'babel-helper-vue-jsx-merge-props', { nameHint: '_mergeJSXProps' })
      // spread it
      attribs = t.callExpression(
        helper,
        [t.arrayExpression(objs)]
      )
    }
    return attribs
  }

  function convertAttribute (node) {
    var value = convertAttributeValue(node.value || t.booleanLiteral(true))