Kong (and OpenResty code generally) localizes everything it calls:
`local splitn = require("kong.tools.string").splitn`, `local check_phase =
phase_checker.check`, `local fmt = string.format`, `local type = type`. Every
bare call then resolved to the same-file alias variable - 8,000 edges on kong,
more than its calls into functions - a dead end for the real callee.
A bare Lua call whose name is a `local` alias in scope is now followed:
- `require "m"` (or a require-named loader like kong's `reload_module`) plus
members, or a member of such a local, goes to the module's function of that
name, or to what the module exports under it (`return { check = check_phase }`,
`unindent = misc.unindent`, up to three hops);
- an alias of a Lua global or standard-library table is no edge, unless the
project patches that function itself outside its tests (kong's `ngx.sleep`);
- a module outside the repo is no edge;
- anything else resolves as before.
A `local` reached this way is visible across files.
kong: -7057 +1150 (every loss is a std/outside alias or a reroute), indexing
4.3s -> 3.3s. apisix -3507 +170, lua-resty-core -967 +231, telescope -28 +17
(all reroutes or outside modules), lazy.nvim reroute only, roact unchanged.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Colby Mchenry