feat: Error.prepareStackTrace method support

Related to #1135

Added support for Error.prepareStackTrace method similar to the one in V8 and changed the format of the stack trace to be the same as android (also as node and browsers) with at ...

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@vtrifonov @mbektchiev First thank for that PR! Now i think we need to discuss a bit more on how to actually use this for the user. It is not easy to actually make it all work. But i managed to end up with this:

The important thing is that i get real ts file absolute path. The great thing about this is that it allow ctrl+click to go the line/column. So useful in dev!

Now there are a few steps to make it work:

have webpack to generate source-map correctly:

you need to add options to config.output (it should work with source-map, inline-source-map ...)

devtoolModuleFilenameTemplate: info => {
        return info.absoluteResourcePath.split('?')[0];
    },
    devtoolFallbackModuleFilenameTemplate: info => {
        return info.absoluteResourcePath.split('?')[0];
    }

have your app correctly handle source maps. I do this only in dev by stripping the code with webpack in prod

const currentApp = knownFolders.currentApp();
process.cwd = function() {
return '';
}
require('source-map-support').install({
environment: 'node',
handleUncaughtExceptions: false,
retrieveSourceMap(source) {
    const sourceMapPath = source + '.map';
    const appPath = currentApp.path;
    let sourceMapRelativePath = sourceMapPath
        // .replace('file:///', '')
        .replace('file://', '')
        .replace(appPath + '/', '')
        .replace(appPath + '/', '');
    if (sourceMapRelativePath.startsWith('app/')) {
        sourceMapRelativePath = sourceMapRelativePath.slice(4);
    }
    return {
        url: sourceMapRelativePath,
        map: currentApp.getFile(sourceMapRelativePath).readTextSync()
    };
}
});

Multiple things there:

i define process.cwd() because source-map-support requires it
i define retrieveSourceMap to recover the file when using source-map. there i need to cleanup the path to be able to read the file.

That should be good enough. For now i got this to work perfectly on Android.

Now some issues:

I dont seem to be able to make it work on iOS. any JS error will make the app crash with sig 11 and thus wont get in prepareStackTrace (using next runtime to have prepareStackTrace)
android: there is an issue with "native" errors where they can't be handled. not even sure they are going through prepareStackTrace as they are created on the native side. But the error that i get on the JS side has the JS stacktrace in "stacktrace" property instead of "stack".

Maybe we can discuss all that on slack. Would love to make it work consistently on iOS and Android. I could them publish a nativescript-source-map-support plugin.

Would it be possible for wepback templates to be updated to support this?

NativeScript / ios-jsc

feat: Error.prepareStackTrace method support #1180

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