Mapping whole computer #35

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1. voxspox commented on Dec 15, 2020

   

   voxspox

   on Dec 15, 2020

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   +1 same behaviour here. Where is the unmapped part coming from?
2. dogabudak commented on Dec 29, 2020

   

   dogabudak

   on Dec 29, 2020

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   +1 Same here, and is this tool actually giving me the true bundle size, or just downloaded node_module sizes. Because I remove some of the unused packages before i build the the App but they are actually still under node_modules but that doesn't mean that is my actual bundle size after compile. This is kinda miss leading if that is the case ?
3. retyui commented on Mar 18, 2026

   

   retyui

   on Mar 18, 2026

   Last edited by retyui

   Contributor

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   It's a source-map-explorer bug and can be fixed by this patch:

   diff --git a/node_modules/source-map-explorer/lib/explore.js b/node_modules/source-map-explorer/lib/explore.js
   index d04fa30..4bea57b 100644
   --- a/node_modules/source-map-explorer/lib/explore.js
   +++ b/node_modules/source-map-explorer/lib/explore.js
   @@ -209,7 +209,7 @@ function computeFileSizes(sourceMapData, options, coverageRanges) {
    }
    function adjustSourcePaths(fileSizeMap, options) {
      if (!options.noRoot) {
   -    const prefix = helpers_1.getCommonPathPrefix(Object.keys(fileSizeMap));
   +    const prefix = helpers_1.getCommonPathPrefix(Object.keys(fileSizeMap).filter(e => !(e.startsWith('[') && e.endsWith(']'))));
        const length = prefix.length;
        if (length) {
          fileSizeMap = lodash_1.mapKeys(fileSizeMap, (size, source) => source.slice(length));

   (optional) if you are using 3.x version: add noRoot: false in node_modules/react-native-bundle-visualizer/src/react-native-bundle-visualizer.js file

         return explore(
           {
             code: bundleOutput,
             map: bundleOutputSourceMap,
           },
           {
             onlyMapped,
   +         noRoot: false,

   ❤️React with ❤️1Reacted by gabimoncha
4. retyui

   closed this as completedon Mar 18, 2026