ludic/changes/module-uses.md

bump: minor type: feature module fishing uses base, data - a module declares what it may reach, and the compiler holds it to that. A reference from a module that says uses into a module it does not name is refused, exported or not, with the use and the fix in the message ("fishing uses items.inv_add (...): add 'uses items' to fishing's module line, or take it through a port"). A module with no uses keeps the old rule, a package's module is always usable, a friend is not held to it, a cycle in the declared graph is refused, and LUDIC_VIS_REPORT=1 lists the violations as uses: lines.