Function mappingByIndex

_benchmarks/sample_echarts.js:7448–7484

(result, newCmptOptions, brandNew)

    }

    function mappingByIndex(result, newCmptOptions, brandNew) {
      each(newCmptOptions, function (cmptOption) {
        if (!cmptOption) {
          return;
        } // Find the first place that not mapped by id and not internal component (consider the "hole").


        var resultItem;
        var nextIdx = 0;

        while ( // Be `!resultItem` only when `nextIdx >= result.length`.
        (resultItem = result[nextIdx]) && ( // (1) Existing models that already have id should be able to mapped to. Because
        // after mapping performed, model will always be assigned with an id if user not given.
        // After that all models have id.
        // (2) If new option has id, it can only set to a hole or append to the last. It should
        // not be merged to the existings with different id. Because id should not be overwritten.
        // (3) Name can be overwritten, because axis use name as 'show label text'.
        resultItem.newOption || isComponentIdInternal(resultItem.existing) || // In mode "replaceMerge", here no not-mapped-non-internal-existing.
        resultItem.existing && cmptOption.id != null && !keyExistAndEqual('id', cmptOption, resultItem.existing))) {
          nextIdx++;
        }

        if (resultItem) {
          resultItem.newOption = cmptOption;
          resultItem.brandNew = brandNew;
        } else {
          result.push({
            newOption: cmptOption,
            brandNew: brandNew,
            existing: null,
            keyInfo: null
          });
        }

        nextIdx++;
      });
    }

    function mappingInReplaceAllMode(result, newCmptOptions) {
      each(newCmptOptions, function (cmptOption) {