roxygen2 is a dynamic documentation system, which means it works with the objects inside your package, not just the source code used to create them. These functions offer various ways of loading your package to suit various constraints:
load_pkgload() uses pkgload::load_all() to simulate package loading
as closely as we know how. It offers high fidelity handling of code that
uses S4, but requires that the package be compiled.
load_source() simulates package loading by attaching packages listed in
Depends and Imports, then sources all files in the R/ directory.
This was the default strategy used in roxygen2 6.0.0 and earlier;
it's primary advantage is that it does not need compilation.
load_installed() uses the installed version of the package. Use this
strategy if you have installed a development version of the package
already. This is the highest fidelity strategy, but requires work
outside of roxygen2.
You can change the default strategy for your function with roxygen2 load
option. Override the default off pkgload to use the source or
installed strategies:
Roxygen: list(load = "source")
load_pkgload(path)load_installed(path)
load_source(path)
Path to source package