Function makeSeriesEncodeForNameBased

_benchmarks/sample_echarts.js:17569–17648

* Work for data like [{name: ..., value: ...}, ...]. * * @return encode Never be `null/undefined`.

(seriesModel, source, dimCount)

     */

    function makeSeriesEncodeForNameBased(seriesModel, source, dimCount) {
      var encode = {};
      var datasetModel = querySeriesUpstreamDatasetModel(seriesModel); // Currently only make default when using dataset, util more reqirements occur.

      if (!datasetModel) {
        return encode;
      }

      var sourceFormat = source.sourceFormat;
      var dimensionsDefine = source.dimensionsDefine;
      var potentialNameDimIndex;

      if (sourceFormat === SOURCE_FORMAT_OBJECT_ROWS || sourceFormat === SOURCE_FORMAT_KEYED_COLUMNS) {
        each(dimensionsDefine, function (dim, idx) {
          if ((isObject(dim) ? dim.name : dim) === 'name') {
            potentialNameDimIndex = idx;
          }
        });
      }

      var idxResult = function () {
        var idxRes0 = {};
        var idxRes1 = {};
        var guessRecords = []; // 5 is an experience value.

        for (var i = 0, len = Math.min(5, dimCount); i < len; i++) {
          var guessResult = doGuessOrdinal(source.data, sourceFormat, source.seriesLayoutBy, dimensionsDefine, source.startIndex, i);
          guessRecords.push(guessResult);
          var isPureNumber = guessResult === BE_ORDINAL.Not; // [Strategy of idxRes0]: find the first BE_ORDINAL.Not as the value dim,
          // and then find a name dim with the priority:
          // "BE_ORDINAL.Might|BE_ORDINAL.Must" > "other dim" > "the value dim itself".

          if (isPureNumber && idxRes0.v == null && i !== potentialNameDimIndex) {
            idxRes0.v = i;
          }

          if (idxRes0.n == null || idxRes0.n === idxRes0.v || !isPureNumber && guessRecords[idxRes0.n] === BE_ORDINAL.Not) {
            idxRes0.n = i;
          }

          if (fulfilled(idxRes0) && guessRecords[idxRes0.n] !== BE_ORDINAL.Not) {
            return idxRes0;
          } // [Strategy of idxRes1]: if idxRes0 not satisfied (that is, no BE_ORDINAL.Not),
          // find the first BE_ORDINAL.Might as the value dim,
          // and then find a name dim with the priority:
          // "other dim" > "the value dim itself".
          // That is for backward compat: number-like (e.g., `'3'`, `'55'`) can be
          // treated as number.


          if (!isPureNumber) {
            if (guessResult === BE_ORDINAL.Might && idxRes1.v == null && i !== potentialNameDimIndex) {
              idxRes1.v = i;
            }

            if (idxRes1.n == null || idxRes1.n === idxRes1.v) {
              idxRes1.n = i;
            }