public void invalidateCache() {
        for (PermissionProcessor processor : this.processors) {
            processor.invalidate();
        }
        this.lookupCache.clear();
    }
Defines the source permissions map which should be used when calculating
a result.

@param sourceMap the source map
common/src/main/java/me/lucko/luckperms/common/calculator/PermissionCalculator.java