Units start here, with the part that needs no import graph: what a unit is called and where it must live. The parser only ever read a single identifier after `unit` and `import`, so `unit game.main;` and `import std.io;` were syntax errors -- which is why the dotted fixtures failed at the semicolon. It now reads a dotted path and stores it canonically, dots included, since that spelling is the unit's identity everywhere else. `import a.b as c;` parses too, with the alias on the node. resolve.c is the new pass between parsing and checking, for the questions that span files. It carries SPEC 8.1 so far: each path segment is ASCII lowercase, starts with a letter, continues with letters, digits or underscore, and is at most eight characters; and the dotted path must match the source path it was read from, so game.world.map has to come from game/world/map.fe. The source side is folded to lowercase before comparing, because a case-insensitive host must not let two spellings become two units. That rule then applied to the fixtures, which were not obeying it: 57 declared a unit name unrelated to their file, left over from the milestone directories, and eight had names too long to be legal. Both are now aligned -- the rule is worth having only if the tree follows it. units: badupper, badlong and unitbad pass. 138 -> 146 of 188. The rest of units/ needs the import graph, which is the next piece: resolution, cycles, bindings and visibility.
M6 fixtures
These fixtures pin the M6 ownership/borrow rules before implementation.
ok*.femust compile with--target=bits32 --emit-c.bad*.femust fail compilation; the first line follows the// ERROR:<line>:<substring>convention from SPEC §12.- They are registered in
src/ferrolang_vm/registry.py, which is what decides whether a milestone runs. - When M6 starts, wire this directory into the DOS/QEMU gate without changing the expected result of any fixture.
- M6 also owns the general-global borrow restriction from R10 because AGENTS.md explicitly groups that change with the
own.cstate-machine work.
Coverage: R4 storage restrictions, R5 scope, R6 shared/exclusive liveness, root-local field/index conflicts, call-only &mut -> & reborrows, branch/loop MaybeMoved and initialization-state merging, R7 invalidation, R8 derived-return provenance joins, defer lifetime extension, and global borrow restrictions.