include_once does not work correctely nested in ifdef/ifndef

[simonseyock]

Imagine the following file:

// #ifndef FLAG
// #include_once "same/file.js"
// #endif

// #ifndef OTHERFLAG
// #include_once "same/file.js"
// #endif

processed with {FLAG:true}

The file "same/file.js" isn't in the result. It gets written at the place where the first include_once occurs but gets removed because of the ifndef. The second time it doesn't get included because it already got included.

[dcodeIO]

Deprecation notice: Preprocessor.js has been deprecated in favor of MetaScript, a much more JavaScripty way for build time meta programming using JavaScript itself as the meta language. Check out the migration guide to get a quick impression of its merits.