This example demonstrates the usage of entryOnly option in combination with module concatenation / scope hoisting.
By default DllPlugin exposes all the modules referenced in the bundle as separate entries.
The manifest includes the individual modules available for use by DllReferencePlugin.
Since all the modules are being accounted for, this prevents advanced optimizations such as tree shaking.
The entryOnly flag tells DllPlugin to only expose the modules which are configured as entry points;
this affects both the manifest and the resulting bundle.
Since some of the modules are no longer included in the "public contract" of the Dll,
they can be optimized by merging (concatenating) multiple modules together or removing unused code.
This allows to take advantage of tree shaking (scope hoisting and dead code removal) optimizations.
In this example only example.js module is exposed, since it's the entry point.
Modules a.js and b.js are concatenated into example.js.
Module cjs.js is left as is, since it's in CommonJS format.
The manifest includes example.js as the only exposed module and lists the exports as ["a","b","c"]
from the corresponding modules a.js, b.js and cjs.js. None of the other modules are exposed.
Also see tree shaking and scope hoisting example.
{{example.js}}{{webpack.config.js}}{{dist/dll.js}}{{dist/dll-manifest.json}}{{stdout}}
{{production:stdout}}