At least using the older loader spec 'file' and 'line' alone is not enough information for the loader to determine which file to load. I think the error message should echo all of the information the developer would need to recreate the error state and hopefully diagnose the issue. I agree that the importing line would be a good addition.
jjb On Fri, Nov 21, 2014 at 9:18 AM, Andrea Giammarchi < andrea.giammar...@gmail.com> wrote: > to be honest I think that `.file` and `.line` would cover the "who > imported what" scenario but those look like a very good/complete `.message` > for such error, nice job > > > > > On Fri, Nov 21, 2014 at 3:37 PM, John Barton <johnjbar...@google.com> > wrote: > >> Traceur reports such errors like this: >> >> // Error: File not found 'feature/Modules/resources/no_such_file.js' >> // Error: Specified as ./resources/no_such_file.js. >> // Error: Imported by >> feature/Modules/Error_InvalidModuleDeclaration.module.js. >> // Error: Normalizes to feature/Modules/resources/no_such_file.js >> // Error: locate resolved against base './' >> >> import * as b from './resources/no_such_file.js'; >> >> jjb >> >> On Fri, Nov 21, 2014 at 3:49 AM, Marius Gundersen <gunder...@gmail.com> >> wrote: >> >>> >>> >>> On Fri, Nov 21, 2014 at 11:49 AM, Andrea Giammarchi < >>> andrea.giammar...@gmail.com> wrote: >>> >>>> a native ImportError seems to me the best option and it's also easy to >>>> polyfill in a meaningful way with all current module loaders used already >>>> out there. >>>> >>>> >>> My experience with AMD and require.js is that it is very useful for the >>> error to include not only the module that couldn't be loaded but also the >>> module that requested it. These two fields should be on the Error object, >>> and so a new ImportError with the field `missingModule` and `requestedBy` >>> (or something similar) sounds like a good solution to me. >>> >>> Marius Gundersen >>> >>> _______________________________________________ >>> es-discuss mailing list >>> es-discuss@mozilla.org >>> https://mail.mozilla.org/listinfo/es-discuss >>> >>> >> >> _______________________________________________ >> es-discuss mailing list >> es-discuss@mozilla.org >> https://mail.mozilla.org/listinfo/es-discuss >> >> >
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